Google Drive API - 获取共享文件下载链接 [英] Google Drive API - Fetch Shared Files Download Links

问题描述

我是Google云端硬盘新手，上传了许多文件。如果下载链接已知，我已经更改了要共享的所有文件的状态。

我想使用PHP来生成文件的所有直接下载链接的列表。 PHP脚本在我的本地主机上运行，​​我只需要将该数组保存到稍后使用的文本文件中。

我试图让Oauth工作非常困难，但遇到了这个看起来像我需要的脚本。我建立了我的服务帐户，并有我的服务帐户电子邮件和.p12文件。

我下载了Google PHP客户端代码库并在我的本地主机上设置了一个测试脚本。这是我的

  require_onceGoogle / Client.php; 
 require_onceGoogle / Service / Drive.php; 
 require_onceGoogle / Service / Oauth2.php; 
 require_onceGoogle / Auth / AssertionCredentials.php; 
 
 session_start（）; 
 
 
函数buildService（$ userEmail）{
 
 $ SERVICE_ACCOUNT_EMAIL ='[e-mail]'; 
 $ SERVICE_ACCOUNT_PKCS12_FILE_PATH ='12345-privatekey.p12'; 
 
 $ key = file_get_contents（$ SERVICE_ACCOUNT_PKCS12_FILE_PATH）; 
 $ auth = new Google_AssertionCredentials（
 $ SERVICE_ACCOUNT_EMAIL，
 array（'https://www.googleapis.com/auth/drive'），
 $ key）; 
 $ auth-> sub = $ userEmail; 
 $ client = new Google_Client（）; 
 $ client-> setUseObjects（true）; 
 $ client-> setAssertionCredentials（$ auth）; 
 
返回新的Google_DriveService（$ client）; 
} 
 
 // ...函数retrieveAllFiles（$ service）
 
 $ service = buildService（[e-mail]）; 
 $ allFiles = retrieveAllFiles（$ service）; 
 print_r（$ allFiles）; 
  

我正在处理这个例子

  http://stackoverflow.com/questions/21046631/google-drive-api-php-cant-list-files 
  

和这个

  https://developers.google.com/ drive / web / delegation＃instantiate_a_drive_service_object 
  

我不确定要做什么，我添加了所需的库，但是PHP脚本中未知的以下函数即将发布

  Google_AssertionCredentials 
 
 setUseObjects 
 
 Google_DriveService 
 $ b $ retrieveAllFiles 
  

我错过了一个明显的库？在这个例子中，它们的命名方式不同，但我猜测基础名称在更新后发生了变化......我花了很多时间阅读Google Drive和Oauth，但没有任何运气。我用这个脚本的唯一目标是获得直接下载链接的列表。我可以手动执行，但文件太多。

任何帮助都会很棒。

谢谢。

---

*编辑：*

hr>

所以我这就是我试图获得我的令牌：

我遵循以下快速入门指南： / p>

  https://developers.google.com/drive/web/quickstart/quickstart-php 
  
 
 $ b 
这是我的代码
 < ;？php 
 
 require_once'Google / client.php'; 
 require_once'Google / Service / drive.php'; 
 
 defined（'STDIN'）或define（'STDIN'，fopen（'php：// stdin'，'r'））; //我必须添加这部分，因为我得到一个未定义的错误STDIN 
 
 $ client = new Google_Client（）; 
 //从控制台获取您的凭证
 $ client-> setClientId（'xxx.apps.googleusercontent.com'）; 
 $ client-> setClientSecret（'xxx'）; 
 $ client-> setRedirectUri（'http：//localhost/test/fetch.php'）; //与注册的相同
 $ client-> setScopes（array（'https://www.googleapis.com/auth/drive'））; 
 
 $ service = new Google_Service_Drive（$ client）; 
 
 $ authUrl = $ client-> createAuthUrl（）; 
 
 //请求授权
打印请访问：\ $ $ authUrl\\\
\\\
; 
 print请输入验证码：\\\
; 
 $ authCode = trim（fgets（STDIN））; 
 
 //访问令牌的交换授权码
 $ accessToken = $ client-> authenticate（$ authCode）; 
 $ client-> setAccessToken（$ accessToken）; 
  
这会导致错误
 致命错误：在C：\Apache24\htdocs\test\Google\Auth\OAuth2.php：95堆栈跟踪：＃中带有'无效代码'消息的未捕获异常'Google_Auth_Exception' 0 C：\Apache24\htdocs\test\Google\Client.php（135）：Google_Auth_OAuth2-> authenticate（''）＃1 C：\Apache24\htdocs\test\\\
ew。 php（26）：Google_Client-> authenticate（''）＃2 {main}抛出C：\Apache24\htdocs\test\Google\Auth\OAuth2.php 95行
  
有什么想法？ 
 
 
谢谢。
 
 
 
 
 
 
另一个编辑 
 
 
 
 
 
由于新的Drive PHP库没有文档或示例，因此我已恢复到旧的Drive PHP库。 
 
 
 
这是我尝试获取令牌并获取直接下载文件的链接。 
 
 
  require_once'google-old / google-api-php-client / src / Google_Client.php'; 
 require_once'google-old / google-api-php-client / src / contrib / Google_DriveService.php'; 
 
 $ client = new Google_Client（）; 
 //从控制台获取您的凭证
 $ client-> setClientId（'xx.apps.googleusercontent.com'）; 
 $ client-> setClientSecret（'xx'）; 
 $ client-> setRedirectUri（'urn：ietf：wg：oauth：2.0：oob'）; 
 
 $ client-> setScopes（array（'https://www.googleapis.com/auth/drive'））; 
 
 $ service = new Google_DriveService（$ client）; 
 
 $ authUrl = $ client-> createAuthUrl（）; 
 
 //请求授权
打印请访问：\ $ $ authUrl\\\
\\\
; 
 print请输入验证码：\\\
; 
 $ authCode = trim（fgets（STDIN））; 
 
 //访问令牌的交换授权码
 $ accessToken = $ client-> authenticate（$ authCode）; 
 $ client-> setAccessToken（$ accessToken）; 
 
 $ getAll = retrieveAllFiles（$ service）; 
 
 print< pre>; 
 print_r（$ getAll）; 
打印< / pre>; 
 
 / ** 
 *检索文件资源列表。 
 * 
 * @param Google_DriveService $ service Drive API服务实例。 
 * @return Array Google_DriveFile资源的列表。 
 * / 
函数retrieveAllFiles（$ service）{
 $ result = array（）; 
 $ pageToken = NULL; 
 
 do {
 try {
 $ parameters = array（）; 
 if（$ pageToken）{
 $ parameters ['pageToken'] = $ pageToken; 
} 
 $ files = $ service-> files-> listFiles（$ parameters）; 
 
 $ result = array_merge（$ result，$ files-> getItems（））; 
 $ pageToken = $ files-> getNextPageToken（）; 
} catch（Exception $ e）{
 print发生错误：。 $ E->的getMessage（）; 
 $ pageToken = NULL; 
} 
} while（$ pageToken）; 
返回$ result; 
} 
  
我现在面临的问题是我被困在粘贴代码进入你的应用程序部分。
 
 
 $ p 
 $ b 
  $ authCode = trim （与fgets（STDIN））; 
  
似乎不想执行。  
 
 
另外我相信文件抓取代码只会抓取文件名，而不是直接下载链接。我找不到这样的例子。 
 
 
 
任何建议将不胜感激。 
 
 
 
谢谢。 
 
 
 
我在本地主机上测试了这个。 
解决方案
替换STDIN的东西。
 
 
 
  
 
 
  if（！isset（$ _ GET ['code']））{
 print请访问：\ N $ authUrl\\\
\\\
; 
 print请输入验证码：\\\
; 
} else {$ authCode =''; } 
 // $ authCode = trim（fgets（STDIN））; 
 
 $ authCode = $ _GET ['code']; 
  
 Google的代码在他们的方面有问题。完成后，我得到了文件创建（它仍然在输出一个错误，但是它产生了这些文件）。
 
 
将file_get_contents行替换为：
  $ data ='blahblah blah'; // file_get_contents（'document.txt'）; 
  
然后你就去了。
 
I am new to Google Drive and have uploaded many files. I have changed the status of all files to be shared if the download link is known. 

I would like to use PHP to generate a list of all of the direct download links for the files. The PHP script is run on my localhost and I just need the array to be saved to a text file to be used later. 

I have had a very hard time trying to get Oauth working but came across this script that looks like what I need. I set up my service account and have my service account email and .p12 file. 

I downloaded the Google PHP client code base and set up a test script on my localhost. This is what I have
require_once "Google/Client.php";
require_once "Google/Service/Drive.php";
require_once "Google/Service/Oauth2.php";
require_once "Google/Auth/AssertionCredentials.php";

session_start();


function buildService($userEmail) {

$SERVICE_ACCOUNT_EMAIL = '[e-mail]';
$SERVICE_ACCOUNT_PKCS12_FILE_PATH = '12345-privatekey.p12';

$key = file_get_contents($SERVICE_ACCOUNT_PKCS12_FILE_PATH);
$auth = new Google_AssertionCredentials(
$SERVICE_ACCOUNT_EMAIL,
array('https://www.googleapis.com/auth/drive'),
$key);
$auth->sub = $userEmail;
$client = new Google_Client();
$client->setUseObjects(true);
$client->setAssertionCredentials($auth);

return new Google_DriveService($client);
}

//... function retrieveAllFiles($service)

$service = buildService("[e-mail]");
$allFiles = retrieveAllFiles($service);
print_r($allFiles);
I am working off of this example
http://stackoverflow.com/questions/21046631/google-drive-api-php-cant-list-files
and this 
https://developers.google.com/drive/web/delegation#instantiate_a_drive_service_object
I am unsure what to do, I have added the required libraries but the following functions are coming up as being unknown in the PHP script
Google_AssertionCredentials

setUseObjects

Google_DriveService

retrieveAllFiles
Am I missing an obvious library? They are named different in the example but I'm guessing the base names have changed since there were updates... I have spent a lot of time reading up on Google Drive and Oauth without any luck. My only goal with this script is to get a list of the direct download links. I can do it manually but there are too many files.  

Any help would be great. 

Thanks. 



* EDIT:  *



So I this is what I have tried to obtain my token:

I am following this quick start guide:
https://developers.google.com/drive/web/quickstart/quickstart-php
Here is my code
<?php

require_once 'Google/client.php';
require_once 'Google/Service/drive.php';

defined('STDIN') or define('STDIN', fopen('php://stdin', 'r')); //I had to add this part as I was getting an undefined error for STDIN 

$client = new Google_Client();
// Get your credentials from the console
$client->setClientId('xxx.apps.googleusercontent.com');
$client->setClientSecret('xxx');
$client->setRedirectUri('http://localhost/test/fetch.php'); //same as registered one
$client->setScopes(array('https://www.googleapis.com/auth/drive'));

$service = new Google_Service_Drive($client);

$authUrl = $client->createAuthUrl();

//Request authorization
print "Please visit:\n$authUrl\n\n";
print "Please enter the auth code:\n";
$authCode = trim(fgets(STDIN));

// Exchange authorization code for access token
$accessToken = $client->authenticate($authCode);
$client->setAccessToken($accessToken);
This results in error
Fatal error: Uncaught exception 'Google_Auth_Exception' with message 'Invalid code' in C:\Apache24\htdocs\test\Google\Auth\OAuth2.php:95 Stack trace: #0 C:\Apache24\htdocs\test\Google\Client.php(135): Google_Auth_OAuth2->authenticate('') #1 C:\Apache24\htdocs\test\new.php(26): Google_Client->authenticate('') #2 {main} thrown in C:\Apache24\htdocs\test\Google\Auth\OAuth2.php on line 95
Any thoughts ?

Thanks.



ANOTHER EDIT 



So I have reverted to the old Drive PHP library as the new Drive PHP library has no documentation or examples. 

This is my attempt to obtain a token and fetch the direct download file links
require_once 'google-old/google-api-php-client/src/Google_Client.php';
require_once 'google-old/google-api-php-client/src/contrib/Google_DriveService.php';

$client = new Google_Client();
// Get your credentials from the console
$client->setClientId('xx.apps.googleusercontent.com');
$client->setClientSecret('xx');
$client->setRedirectUri('urn:ietf:wg:oauth:2.0:oob');

$client->setScopes(array('https://www.googleapis.com/auth/drive'));

$service = new Google_DriveService($client);

$authUrl = $client->createAuthUrl();

//Request authorization
print "Please visit:\n$authUrl\n\n";
print "Please enter the auth code:\n";
$authCode = trim(fgets(STDIN));

// Exchange authorization code for access token
$accessToken = $client->authenticate($authCode);
$client->setAccessToken($accessToken);

$getAll = retrieveAllFiles($service);

print "<pre>";
print_r($getAll);
print "</pre>";

/**
 * Retrieve a list of File resources.
 *
 * @param Google_DriveService $service Drive API service instance.
 * @return Array List of Google_DriveFile resources.
 */
function retrieveAllFiles($service) {
$result = array();
$pageToken = NULL;

do {
    try {
        $parameters = array();
        if ($pageToken) {
            $parameters['pageToken'] = $pageToken;
        }
        $files = $service->files->listFiles($parameters);

        $result = array_merge($result, $files->getItems());
        $pageToken = $files->getNextPageToken();
    } catch (Exception $e) {
        print "An error occurred: " . $e->getMessage();
        $pageToken = NULL;
    }
} while ($pageToken);
return $result;
}
The problem I now face is that I am stuck at the "Paste the code into your app" part.

The 
$authCode = trim(fgets(STDIN));
doesn't seem to want to execute. 

Also I believe the file fetching code will just fetch the file names, and not the direct download links. I could not find an example for this. 

Any suggestions would be much appreciated. 

Thanks. 

I am testing this on my localhost. 
解决方案
Replace the STDIN stuff.

put this in instead:
if (!isset($_GET['code'])) {
    print "Please visit:\n$authUrl\n\n";
    print "Please enter the auth code:\n";
} else { $authCode = ''; }
//$authCode = trim(fgets(STDIN));

$authCode = $_GET['code'];
Google's code is buggy in terms of their thing. Having done so I'm getting file creation (it's still pumping out an error but it's producing the files).

replace their file_get_contents line with:
$data = 'blahblah blah';//file_get_contents('document.txt');
and there you go.

                        
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