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[英]How do you force a file to download from Amazon S3 using the Amazon SDK for PHP?
[英]How do I download a file with php and the Amazon S3 sdk?
我正在嘗試讓我的腳本通過 php 在 Amazon S3 存儲桶中顯示 test.jpg。 這是我到目前為止所擁有的:
require_once('library/AWS/sdk.class.php');
$s3 = new AmazonS3($key, $secret);
$objInfo = $s3->get_object_headers('my_bucket', 'test.jpg');
$obj = $s3->get_object('my_bucket', 'test.jpg', array('headers' => array('content-disposition' => $objInfo->header['_info']['content_type'])));
echo $obj->body;
這只是轉儲頁面上的文件數據。 我想我還需要發送 content-disposition 標頭,我認為這是在 get_object() 方法中完成的,但事實並非如此。
注意:我正在使用此處提供的 SDK: http : //aws.amazon.com/sdkforphp/
這兩種方法都適合我。 第一種方式看起來更簡潔。
$command = $s3->getCommand('GetObject', array(
'Bucket' => 'bucket_name',
'Key' => 'object_name_in_s3'
'ResponseContentDisposition' => 'attachment; filename="'.$my_file_name.'"'
));
$signedUrl = $command->createPresignedUrl('+15 minutes');
echo $signedUrl;
header('Location: '.$signedUrl);
die();
或者更冗長但仍然實用的方式。
$object = $s3->getObject(array(
'Bucket' => 'bucket_name',
'Key' => 'object_name_in_s3'
));
header('Content-Description: File Transfer');
//this assumes content type is set when uploading the file.
header('Content-Type: ' . $object->ContentType);
header('Content-Disposition: attachment; filename=' . $my_file_name);
header('Expires: 0');
header('Cache-Control: must-revalidate');
header('Pragma: public');
//send file to browser for download.
echo $object->body;
通過在回顯 $object 主體之前回顯內容類型標頭來使其工作。
$objInfo = $s3->get_object_headers('my_bucket', 'test.jpg');
$obj = $s3->get_object('my_bucket', 'test.jpg');
header('Content-type: ' . $objInfo->header['_info']['content_type']);
echo $obj->body;
對於 PHP sdk3 更改 Maximus 答案的最后一行
$object = $s3->getObject(array(
'Bucket' => 'bucket_name',
'Key' => 'object_name_in_s3'
));
header('Content-Description: File Transfer');
//this assumes content type is set when uploading the file.
header('Content-Type: ' . $object->ContentType);
header('Content-Disposition: attachment; filename=' . $my_file_name);
header('Expires: 0');
header('Cache-Control: must-revalidate');
header('Pragma: public');
//send file to browser for download.
echo $object["Body"];
如果您仍在 2019 年以上尋找相關答案,使用適用於 PHP 3.x 的 AWS 開發工具包,特別是使用 Composer 的“2006-03-01”,以下內容對我有用
...
/**
* Download a file
*
* @param string $object_key
* @param string $file_name
* @return void
*/
function download($object_key, $file_name = '') {
if ( empty($file_name) ) {
$file_name = basename($file_path);
}
$cmd = $s3->getCommand('GetObject', [
'Bucket' => '<aws bucket name>',
'Key' => $object_key,
'ResponseContentDisposition' => "attachment; filename=\"{$file_name}\"",
]);
$signed_url = $s3->createPresignedRequest($cmd, '+15 minutes') // \GuzzleHttp\Psr7\Request
->getUri() // \GuzzleHttp\Psr7\Uri
->__toString();
header("Location: {$signed_url}");
}
download('<object key here>', '<file name for download>');
注意:對於那些希望避免使用 AWS 的直接下載鏈接通過其服務器代理下載可能出現的問題的人來說,這是一個解決方案。
我將 Content-Disposition 標頭添加到 getAuthenticatedUrl();
// Example
$timeOut = 3600; // in seconds
$videoName = "whateveryoulike";
$headers = array("response-content-disposition"=>"attachment");
$downloadURL = $s3->getAuthenticatedUrl( FBM_S3_BUCKET, $videoName, FBM_S3_LIFETIME + $timeOut, true, true, $headers );
此腳本下載 S3 服務(例如 Amazon S3 或 DigitalOcean 空間)上所有目錄中的所有文件。
composer require aws/aws-sdk-php
php index.php
並讓它翻錄!請注意,我只是編寫了代碼來完成工作,因此我可以關閉我的 DO 帳戶。 它可以滿足我的需要,但我可以進行一些改進以使其更具可擴展性。 享受!
<?php
require 'vendor/autoload.php';
use Aws\S3\S3Client;
class DOSpaces {
// Find them at https://cloud.digitalocean.com/account/api/tokens
const CREDENTIALS_API_KEY = '';
const CREDENTIALS_API_KEY_SECRET = '';
const CREDENTIALS_ENDPOINT = 'https://nyc3.digitaloceanspaces.com';
const CREDENTIALS_REGION = 'us-east-1';
const CREDENTIALS_BUCKET = 'my-bucket-name';
private $client = null;
public function __construct(array $args = []) {
$config = array_merge([
'version' => 'latest',
'region' => static::CREDENTIALS_REGION,
'endpoint' => static::CREDENTIALS_ENDPOINT,
'credentials' => [
'key' => static::CREDENTIALS_API_KEY,
'secret' => static::CREDENTIALS_API_KEY_SECRET,
],
], $args);
$this->client = new S3Client($config);
}
public function download($destinationRoot) {
$objects = $this->client->listObjectsV2([
'Bucket' => static::CREDENTIALS_BUCKET,
]);
foreach ($objects['Contents'] as $obj){
echo "DOWNLOADING " . $obj['Key'] . "\n";
$result = $this->client->getObject([
'Bucket' => 'dragon-cloud-assets',
'Key' => $obj['Key'],
]);
$this->handleObject($destinationRoot . $obj['Key'], $result['Body']);
}
}
private function handleObject($name, $data) {
$this->ensureDirExists($name);
if (substr($name, -1, 1) !== '/') {
echo "CREATING " . $name . "\n";
file_put_contents($name, $data);
}
}
private function ensureDirExists($name) {
$dir = $name;
if (substr($name, -1, 1) !== '/') {
$parts = explode('/', $name);
array_pop($parts);
$dir = implode('/', $parts);
}
@mkdir($dir, 0777, true);
}
}
$doSpaces = new DOSpaces([
'endpoint' => 'https://nyc2.digitaloceanspaces.com',
'credentials' => [
'key' => '12345',
'secret' => '54321',
],
]);
$doSpaces->download('/home/myusername/Downloads/directoryhere/');
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