【发布时间】：2016-08-23 13:31:15
【问题描述】：
一直在寻找使用here 提到的 API 从谷歌驱动器下载文件。在流程中，能够通过用户的身份验证，并且能够使用以下代码列出文件。
echo "<br>" . count($results->getFiles()). " File(s) found" ;
echo "<hr>";
foreach ($results->getFiles() as $file) {
echo "File Name is " . $file->getName() . " And file ID is ". $file->getId() . " Type is ".$file->getMimeType() ."<br><pre>";
print_r($file);
echo "</pre><hr>";
}
输出类似于
100 File(s) found
File Name is invoice receipt.pdf And file ID is 0B5CWXJTNwALMOEJkdzFvMVVsVFE Type is application/pdf
Google_Service_Drive_DriveFile Object
(
[collection_key:protected] => spaces
[appProperties] =>
[capabilitiesType:protected] => Google_Service_Drive_DriveFileCapabilities
[capabilitiesDataType:protected] =>
[contentHintsType:protected] => Google_Service_Drive_DriveFileContentHints
[contentHintsDataType:protected] =>
[createdTime] =>
[description] =>
[explicitlyTrashed] =>
[fileExtension] =>
[folderColorRgb] =>
[fullFileExtension] =>
[headRevisionId] =>
[iconLink] =>
[id] => 0B5CWXJTNwALMOEJkdzFvMVVsVFE
[imageMediaMetadataType:protected] => Google_Service_Drive_DriveFileImageMediaMetadata
[imageMediaMetadataDataType:protected] =>
[isAppAuthorized] =>
[kind] => drive#file
[lastModifyingUserType:protected] => Google_Service_Drive_User
[lastModifyingUserDataType:protected] =>
[md5Checksum] =>
[mimeType] => application/pdf
[modifiedByMeTime] =>
[modifiedTime] =>
[name] => invoice receipt.pdf
[originalFilename] =>
[ownedByMe] =>
[ownersType:protected] => Google_Service_Drive_User
[ownersDataType:protected] => array
[parents] =>
[permissionsType:protected] => Google_Service_Drive_Permission
[permissionsDataType:protected] => array
[properties] =>
[quotaBytesUsed] =>
[shared] =>
[sharedWithMeTime] =>
[sharingUserType:protected] => Google_Service_Drive_User
[sharingUserDataType:protected] =>
[size] =>
[spaces] =>
[starred] =>
[thumbnailLink] =>
[trashed] =>
[version] =>
[videoMediaMetadataType:protected] => Google_Service_Drive_DriveFileVideoMediaMetadata
[videoMediaMetadataDataType:protected] =>
[viewedByMe] =>
[viewedByMeTime] =>
[viewersCanCopyContent] =>
[webContentLink] =>
[webViewLink] =>
[writersCanShare] =>
[internal_gapi_mappings:protected] => Array
(
)
[modelData:protected] => Array
(
)
[processed:protected] => Array
(
)
)
现在，尝试应用如下下载代码
$fileId = '0B5CWXJTNwALMOEJkdzFvMVVsVFE';
$content = $drive_service->files->get($fileId, array(
'alt' => 'media' ));
echo "<pre>";
print_r($content->getHeaders());
foreach ($content->getHeaders() as $name => $values) {
header($name . ': ' . implode(', ', $values[0]));
}
文件未下载，但可以看到如下输出
Array
(
[X-GUploader-UploadID] => Array
(
[0] => AEnB2UrDOQ-mYxNd5tE5ctVr01jVTnh3ZykKviCBnEOjDRGtT_EIT2nbHLEM_f-2pZ22anDJpqMzbISzhcTTZY3PgsDj69PE-w
)
[Content-Type] => Array
(
[0] => application/pdf
)
[Content-Disposition] => Array
(
[0] => attachment
)
[Vary] => Array
(
[0] => Origin
[1] => X-Origin
)
[Expires] => Array
(
[0] => Tue, 23 Aug 2016 13:20:18 GMT
)
[Date] => Array
(
[0] => Tue, 23 Aug 2016 13:20:18 GMT
)
[Cache-Control] => Array
(
[0] => private, max-age=0, must-revalidate
)
[Content-Length] => Array
(
[0] => 80277
)
[X-Goog-Hash] => Array
(
[0] => crc32c=5yKN2g==
)
[Server] => Array
(
[0] => UploadServer
)
[Alternate-Protocol] => Array
(
[0] => 443:quic
)
[Alt-Svc] => Array
(
[0] => quic=":443"; ma=2592000; v="35,34,33,32,31,30"
)
)
问题：如何下载文件？
编辑
根据保罗的回答，创建了如下两个文件。这适用于 image/png、application/octet-stream、application/pdf 类型，但是 zip/rar 文件存在问题（错误：此站点无法联系到）
test.php
<?php
require_once __DIR__ . '/vendor/autoload.php';
session_start();
$client = new Google_Client();
$client->setAuthConfigFile('client_secrets.json');
$client->addScope(Google_Service_Drive::DRIVE);
if (isset($_SESSION['access_token']) && $_SESSION['access_token'])
{
$client->setAccessToken($_SESSION['access_token']);
$drive_service = new Google_Service_Drive($client);
$results = $drive_service->files->listFiles();
if (count($results->getFiles()) == 0)
{
echo "No files found";
}
else
{
echo "<br>" . count($results->getFiles()). " File(s) found" ;
echo "<br><table><thead><th>File Name</th><th>File Type</th><th>Download Link</th></thead><tbody>";
foreach ($results->getFiles() as $file) {
echo "<tr><td>" . $file->getName() . "</td><td>" . $file->getMimeType() ."</td><td><a href='gdrivedownlaod.php?fileid=". $file->getId() . "&type=" . $file->getMimeType() . "&name=" . $file->getName() . "' target='blank'>Download</a></td></tr>";// ."<br><pre>";
}
echo "</tbody></table>";
}
}
else
{
$redirect_uri = 'https://abcd.co/oauth2callback';
echo "Hello, <a href='" . $redirect_uri . "'>Log in with Drive</a>";
}
和 gdrivedownlaod.php 作为
<?php
require_once __DIR__ . '/vendor/autoload.php';
session_start();
$client = new Google_Client();
$client->setAuthConfigFile('client_secrets.json');
$client->addScope(Google_Service_Drive::DRIVE);
if (isset($_GET['name']) && isset($_GET['type'])) {
//echo "We will download " . $_GET['name'] . " type " . $_GET['type'] . " with file id " . $_GET['fileid'];
$fileId=$_GET['fileid'];
if (isset($_SESSION['access_token']) && $_SESSION['access_token'])
{
$client->setAccessToken($_SESSION['access_token']);
$drive_service = new Google_Service_Drive($client);
$content = $drive_service->files->get($fileId, array(
'alt' => 'media' ));
$fileName = $_GET['name'];
$headers = $content->getHeaders();
foreach ($headers as $name => $values) {
header($name . ': ' . implode(', ', $values));
}
header('Content-Disposition: attachment; filename="' . $fileName . '"');
echo $content->getBody();
//echo "<script>window.close();</script>";
exit;
}
else
{
session_destroy();
session_unset();
header('Location: test.php');
}
}
else
echo "incorrect files ";
【问题讨论】：
-
感谢保罗，已更改。对解决方案有任何想法吗？
-
首先尝试docs 中的建议，即下载文件向文件的资源 URL 发出授权的 HTTP GET 请求并包含查询参数 alt=media。如果此方法对您有效，请尝试仔细检查您使用的代码。请注意，下载文件需要用户至少具有读取权限。您的应用程序必须获得允许读取文件内容的范围的授权。例如，使用 drive.readonly.metadata 范围的应用将无权下载文件内容
-
感谢@KENdi。我拥有完整的驱动器访问权限，因为我也能够获取元数据。问题是如何使用 guzzle 响应在浏览器中调度文件。
标签： php google-drive-api