使用文件系统 Laravel 5.2 从 amazon s3 获取文件的签名 URL

Question

我正在寻找一个好的解决方案来从 amazon s3 获得签名的 url。

我有一个版本可以使用它，但没有使用 laravel:

private function getUrl ()
{
        $distribution = $_SERVER["AWS_CDN_URL"];

        $cf = Amazon::getCFClient();

        $url = $cf->getSignedUrl(array(
            'url'     => $distribution . self::AWS_PATH.rawurlencode($this->fileName),
            'expires' => time() + (session_cache_expire() * 60)));

        return $url;
}

我不知道这是否是处理 laravel 的最佳方式，考虑到它有一个完整的文件系统可以工作...

但是如果没有别的办法，我要怎么获取客户端呢？调试我在 Filesystem 对象中找到了它的一个实例，但它是受保护的...

Answer 1

在Laravel,

$s3 = \Storage::disk('s3');
$client = $s3->getDriver()->getAdapter()->getClient();
$expiry = "+10 minutes";

$command = $client->getCommand('GetObject', [
    'Bucket' => \Config::get('filesystems.disks.s3.bucket'),
    'Key'    => "file/in/s3/bucket"
]);

$request = $client->createPresignedRequest($command, $expiry);

return (string) $request->getUri();

确保你也有 AWS for flysystem composer 包（版本会有所不同）：

"league/flysystem-aws-s3-v3": "1.0.9"

Answer 2

对于 Laravel 5.5 及以上，您现在可以使用临时 URLs/s3 预签名 URL。

use \Storage;

// Make sure you have s3 as your disk driver
$url = Storage::disk('s3')->temporaryUrl(
   'file1.jpg', Carbon::now()->addMinutes(5)
);

这仅适用于 s3 存储驱动程序 AFAIK。

https://laravel.com/docs/5.5/filesystem#retrieving-files

Answer 3

经过很多错误，我终于找到了使用以下代码访问 s3 存储桶的私有内容的解决方案：-

use Storage;
use Config;

$client = Storage::disk('s3')->getDriver()->getAdapter()->getClient();
$bucket = Config::get('filesystems.disks.s3.bucket');

$command = $client->getCommand('GetObject', [
    'Bucket' => $bucket,
    'Key' => '344772707_360.mp4'  // file name in s3 bucket which you want to access
]);

$request = $client->createPresignedRequest($command, '+20 minutes');

// Get the actual presigned-url
echo $presignedUrl = (string)$request->getUri();

Answer 4

上面的解释答案（@brian_d）是可以的，但是生成预签名的时间太长了url。我浪费了将近 4-5 天的时间来克服它。最后跟随为我工作。感谢@Kenth。

use Carbon\Carbon;
use Illuminate\Support\Facades\Storage;

$disk = Storage::disk('s3');
$url = $disk->getAwsTemporaryUrl($disk->getDriver()->getAdapter(), $value, Carbon::now()->addMinutes(5), []);

Answer 5

这是将图像上传到 S3 并创建签名的完整代码 URL;

首先获取一个文件对象并创建对象名

$filename = $_FILES["image"]["name"];
$array = explode('.', $filename);
$fileExt = $array[1]; // to get file extension
$objectName = 'images/' . time() .$fileExt; // create object name
$document = fopen($_FILES["image"]["tmp_name"],'r');

// Code to upload document on s3
$s3 = \Storage::disk('s3');
$s3->put($objectName,$document,'public');

// If you want to get uploaded document Url you can use below code:
$image_name = \Storage::disk('s3')->url($name); // it will return stored document url

create/get 签名 URL 的代码，你也可以把它作为一个单独的函数：

$s3 = \Storage::disk('s3');
$client = $s3->getDriver()->getAdapter()->getClient();
$expiry = "+10 minutes";

$command = $client->getCommand('GetObject', [
  'Bucket' => config('params.YOUR_AWS_BUCKET_NAME'), // bucket name
  'Key'    => $objectName
]);

$request = $client->createPresignedRequest($command, $expiry);
$url =  (string) $request->getUri(); // it will return signed URL

Answer 6

$file_path = "profile/image.png";

$client = Storage::disk('s3')->getDriver()->getAdapter()->getClient();

$bucket = config('filesystems.disks.s3.bucket');
$command = $client->getCommand('GetObject', [
        'Bucket' => $bucket,
        'Key' => $file_path  // file name in s3 bucket which you want to access
    ]);
$request = $client->createPresignedRequest($command, '+5 minutes');

return $presignedUrl = (string) $request->getUri(); // Get the actual presigned-url

Answer 7

对于 Laravel 9 显示受保护文件夹中的所有图像的示例：

    $function = function ($image){
        return Storage::disk('s3')->temporaryUrl(
            $image, Carbon::now()->addMinutes(60)
        );
    };

    $images = Storage::disk('s3')->allFiles('images/client');

    return array_map($function,$images);

使用文件系统 Laravel 5.2 从 amazon s3 获取文件的签名 URL

Get file's signed URL from amazon s3 using Filesystem Laravel 5.2

php

amazon-s3

amazon-web-services

laravel-5.2