【问题标题】:Rest API call : How to connect Google Drive with laravel 5?Rest API 调用:如何将 Google Drive 与 laravel 5 连接起来?
【发布时间】:2018-01-17 09:21:14
【问题描述】:

目前正在使用带有laravel 5的AWS,需要将google drive添加到我的laravel项目中,如何连接到google drive为用户上传和查看文件。

我尝试了以下示例,但出现了需要登录的错误。上传文件前如何获取access_token?

    $client = new Google_Client();
    $client->setClientId('abc.apps.googleusercontent.com');
    $client->setClientSecret('abc');
    $client->setRedirectUri('abc');
    $client->setScopes(array('https://www.googleapis.com/auth/drive.file'));

    if (isset($_GET['code']) || (isset($_SESSION['access_token']) && $_SESSION['access_token'])) 
    {
        if (isset($_GET['code'])){

            $client->authenticate($_GET['code']);
            $_SESSION['access_token'] = $client->getAccessToken();
        }
        else
            $client->setAccessToken($_SESSION['access_token']);

            $service = new Google_Service_Drive($client);

            $file = new Google_Service_Drive_DriveFile();
            $file->setDescription('image');
            $file->setMimeType('image/png');

            $data = file_get_contents(public_path('images\log.png');
            $createdFile = $service->files->create($file, array(
                        'data' => $data,
                        'mimeType' => 'image/png',
                        'uploadType' => 'multipart'
                    ));

            return $createdFile;

 } else {
      $authUrl = $client->createAuthUrl();
      header('Location: ' . $authUrl);
      exit();
 }

【问题讨论】:

标签: php laravel-5 google-drive-api google-api-php-client


【解决方案1】:
  1. 使用 google 服务帐号避免登录或访问令牌。
  2. 将服务帐户 json 文件附加到 google 客户端 API(在服务帐户页面中创建密钥)
  3. 上传文件到谷歌驱动器并获取文件ID
  4. 使用文件 ID 在浏览器中访问您的文件

示例: 使用两个函数创建和查看文件

public function uploadTogoogleDrive(){
    $client = new Google_Client();
    $client->setAuthConfig(public_path('service_account.json'));
    $client->setScopes(array('https://www.googleapis.com/auth/drive','https://www.googleapis.com/auth/drive.file'));
    $client->setRedirectUri('http://' . $_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']);

    $service = new Google_Service_Drive($client);

    $fileMetadata = new Google_Service_Drive_DriveFile(array(
        'name' => 'DefaltReport.pdf'));
    $content = file_get_contents(public_path('reports\DefaltReport.pdf'));
    $file = $service->files->create($fileMetadata, array(
        'data' => $content,
        'mimeType' => 'application/pdf',
        'uploadType' => 'multipart',
        'fields' => 'id'));
    printf("File ID: %s\n", $file->id); // Your file id

}

public function viewGoogleDriveFile(){

    $fileId = $_GET['fileId'];
    $client = new Google_Client();
    $client->setAuthConfig(public_path('service_account.json'));
    $client->setScopes(array('https://www.googleapis.com/auth/drive','https://www.googleapis.com/auth/drive.file'));
    $client->setRedirectUri('http://' . $_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']);

    $service = new Google_Service_Drive($client);

    $response = $service->files->get($fileId, array(
        'alt' => 'media' ));
    header('Content-type:application/pdf');
    echo $content = $response->getBody()->getContents();
}

【讨论】:

    【解决方案2】:

    也许您可以查看此SO Post。它指出了如何在谷歌驱动器上登录和文件上传。

    这是帖子中指定的github代码。

    <?php
    /*
     * Copyright 2011 Google Inc.
     *
     * Licensed under the Apache License, Version 2.0 (the "License");
     * you may not use this file except in compliance with the License.
     * You may obtain a copy of the License at
     *
     *     http://www.apache.org/licenses/LICENSE-2.0
     *
     * Unless required by applicable law or agreed to in writing, software
     * distributed under the License is distributed on an "AS IS" BASIS,
     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     * See the License for the specific language governing permissions and
     * limitations under the License.
     */
    include_once __DIR__ . '/../vendor/autoload.php';
    include_once "templates/base.php";
    echo pageHeader("File Upload - Uploading a large 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/large-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 = $client->createAuthUrl();
    }
    /************************************************
     * If we're signed in then lets try to upload our
     * file.
     ************************************************/
    if ($_SERVER['REQUEST_METHOD'] == 'POST' && $client->getAccessToken()) {
      /************************************************
       * We'll setup an empty 20MB file to upload.
       ************************************************/
      DEFINE("TESTFILE", 'testfile.txt');
      if (!file_exists(TESTFILE)) {
        $fh = fopen(TESTFILE, 'w');
        fseek($fh, 1024*1024*20);
        fwrite($fh, "!", 1);
        fclose($fh);
      }
      $file = new Google_Service_Drive_DriveFile();
      $file->name = "Big File";
      $chunkSizeBytes = 1 * 1024 * 1024;
      // Call the API with the media upload, defer so it doesn't immediately return.
      $client->setDefer(true);
      $request = $service->files->create($file);
      // Create a media file upload to represent our upload process.
      $media = new Google_Http_MediaFileUpload(
          $client,
          $request,
          'text/plain',
          null,
          true,
          $chunkSizeBytes
      );
      $media->setFileSize(filesize(TESTFILE));
      // Upload the various chunks. $status will be false until the process is
      // complete.
      $status = false;
      $handle = fopen(TESTFILE, "rb");
      while (!$status && !feof($handle)) {
        // read until you get $chunkSizeBytes from TESTFILE
        // fread will never return more than 8192 bytes if the stream is read buffered and it does not represent a plain file
        // An example of a read buffered file is when reading from a URL
        $chunk = readVideoChunk($handle, $chunkSizeBytes);
        $status = $media->nextChunk($chunk);
      }
      // The final value of $status will be the data from the API for the object
      // that has been uploaded.
      $result = false;
      if ($status != false) {
        $result = $status;
      }
      fclose($handle);
    }
    function readVideoChunk ($handle, $chunkSize)
    {
        $byteCount = 0;
        $giantChunk = "";
        while (!feof($handle)) {
            // fread will never return more than 8192 bytes if the stream is read buffered and it does not represent a plain file
            $chunk = fread($handle, 8192);
            $byteCount += strlen($chunk);
            $giantChunk .= $chunk;
            if ($byteCount >= $chunkSize)
            {
                return $giantChunk;
            }
        }
        return $giantChunk;
    }
    ?>
    
    <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 this file:</p>
        <p><a href="https://drive.google.com/open?id=<?= $result->id ?>" target="_blank"><?= $result->name ?></a></p>
        <p>Now try <a href="/large-file-download.php">downloading a large file from Drive</a>.
      </div>
    <?php else: ?>
      <form method="POST">
        <input type="submit" value="Click here to upload a large (20MB) test file" />
      </form>
    <?php endif ?>
    </div>
    
    <?= pageFooter(__FILE__) ?>
    

    如需更多参考,请打开此So post

    您可以从 github 上查看与登录错误相关的 this post,并检索此 documentation 定义所需步骤的访问令牌。

    用户在尝试在 Google 云端硬盘中插入文件时遇到需要登录的问题。

    这是响应。

    您需要使用 OAuth2 授权流程。完成此操作后,应用程序将 被授予访问令牌和刷新令牌,并且能够 使用这些保持对您帐户的访问权限。

    其中你将需要这些一般流程:

    1. 创建应用程序时,您可以使用 Google API 控制台 对其进行注册。然后,Google 会提供您稍后需要的信息,例如客户端 ID 和客户端密码。
    2. 在 Google API 控制台中激活 Drive API。 (如果 API 控制台中未列出 API,则跳过此步骤。)
    3. 当您的应用程序需要访问用户数据时,它会要求 Google 提供特定的范围访问权限。
    4. Google 会向用户显示一个同意屏幕,要求他们授权您的应用程序请求他们的一些数据。
    5. 如果用户批准,则 Google 会为您的应用程序提供一个短期访问令牌。
    6. 您的应用程序请求用户数据,将访问令牌附加到请求中。
    7. 如果 Google 确定您的请求和令牌有效,则会返回请求的数据。

    【讨论】:

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