php Laravel League/flysystem 使用 AWS S3 获取文件 URL
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Laravel league/flysystem getting file URL with AWS S3
提问by Ioana Cucuruzan
I am trying to build a file management system in Laravel based on league/flysystem: https://github.com/thephpleague/flysystem
我正在尝试基于 League/flysystem 在 Laravel 中构建一个文件管理系统：https: //github.com/thephpleague/flysystem
I am using the S3 adapter and I have it working to save the uploaded files using:
我正在使用 S3 适配器，并且可以使用以下方法保存上传的文件：
$filesystem->write('filename.txt', 'contents');
Now I am stuck on generating the download file URLwhen using the S3 adapter.
现在我坚持在使用 S3 适配器时生成下载文件 URL。
The files are saved correctly in the S3 bucket, I have permissions to access them, I just don't know how to get to the S3 getObjectUrl method through the league/flysystem package.
文件正确保存在 S3 存储桶中，我有访问它们的权限，我只是不知道如何通过 League/flysystem 包访问 S3 getObjectUrl 方法。
I have tried:
我试过了：
$contents = $filesystem->read('filename.txt');
but that returns the content of the file.
但这会返回文件的内容。
$contents = $filemanager->listContents();
or
或者
$paths = $filemanager->listPaths();
but they give me the relative paths to my files.
但他们给了我文件的相对路径。
What I need is something like "ht...//[s3-region].amazonaws.com/[bucket]/[dir]/[file]..."
我需要的是“ht...//[s3-region].amazonaws.com/[bucket]/[dir]/[file]...”
采纳答案by Jeremy Lindblom
I'm not sure what the correctway of doing this is with Flysystem, but the underlying S3Clientobject has a method for doing that. You could do $filesystem->getAdapter()->getClient()->getObjectUrl($bucket, $key);. Of course, building the URL is as trivial as you described, so you don't really need a special method to do it.
我不确定使用 Flysystem 执行此操作的正确方法是什么，但底层S3Client对象有一种方法可以做到这一点。你可以做$filesystem->getAdapter()->getClient()->getObjectUrl($bucket, $key);。当然，构建 URL 与您描述的一样微不足道，因此您实际上并不需要特殊的方法来完成它。
回答by i906
I am using Laravel 5.2 and the code below seemed to work fine.
我使用的是 Laravel 5.2，下面的代码似乎工作正常。
Storage::cloud()->url('filename');
回答by Richard McLain
When updating to Laravel 5.1 this method no longer supported by the adapter. No in your config you must have the S3_REGION set or you will get a invalid hostname error and secondly I had to use the command as input to create the presignedRequest.
当更新到 Laravel 5.1 时，适配器不再支持此方法。不，在您的配置中，您必须设置 S3_REGION，否则您将收到无效的主机名错误，其次我必须使用该命令作为输入来创建 presignedRequest。
public function getFilePathAttribute($value)
{
$disk = Storage::disk('s3');
if ($disk->exists($value)) {
$command = $disk->getDriver()->getAdapter()->getClient()->getCommand('GetObject', [
'Bucket' => Config::get('filesystems.disks.s3.bucket'),
'Key' => $value,
'ResponseContentDisposition' => 'attachment;'
]);
$request = $disk->getDriver()->getAdapter()->getClient()->createPresignedRequest($command, '+5 minutes');
return (string) $request->getUri();
}
return $value;
}
回答by Kevin Lee
Maybe I'm a little late to this question, but here's a way to use Laravel 5's built-in Filesystem.
也许我对这个问题有点晚了，但这里有一种使用 Laravel 5 的内置文件系统的方法。
I created a Manager class that extends Laravel's FilesystemManager to handle the public url retrieval:
我创建了一个 Manager 类，它扩展了 Laravel 的 FilesystemManager 来处理公共 url 检索：
class FilesystemPublicUrlManager extends FilesystemManager
{
public function publicUrl($name = null, $object_path = '')
{
$name = $name ?: $this->getDefaultDriver();
$config = $this->getConfig($name);
return $this->{'get' . ucfirst($config['driver']) . 'PublicUrl'}($config, $object_path);
}
public function getLocalPublicUrl($config, $object_path = '')
{
return URL::to('/public') . $object_path;
}
public function getS3PublicUrl($config, $object_path = '')
{
$config += ['version' => 'latest'];
if ($config['key'] && $config['secret']) {
$config['credentials'] = Arr::only($config, ['key', 'secret']);
}
return (new S3Client($config))->getObjectUrl($config['bucket'], $object_path);
}
}
Then, I added this class to the AppServiceProvider under the register method so it has access to the current app instance:
然后，我将这个类添加到 AppServiceProvider 的 register 方法下，以便它可以访问当前的应用程序实例：
$this->app->singleton('filesystemPublicUrl', function () {
return new FilesystemPublicUrlManager($this->app);
});
Finally, for easy static access, I created a Facade class:
最后，为了方便静态访问，我创建了一个 Facade 类：
use Illuminate\Support\Facades\Facade;
class StorageUrl extends Facade
{
/**
* Get the registered name of the component.
*
* @return string
*/
protected static function getFacadeAccessor()
{
return 'filesystemPublicUrl';
}
}
Now, I can easily get the public url for my public objects on my local and s3 filesystems (note that I didn't add anything for ftp or rackspace in the FilesystemPublicUrlManager):
现在，我可以轻松获取本地和 s3 文件系统上公共对象的公共 url（请注意，我没有在 FilesystemPublicUrlManager 中为 ftp 或 rackspace 添加任何内容）：
$s3Url = StorageUrl::publicUrl('s3') //using the s3 driver
$localUrl = StorageUrl::publicUrl('local') //using the local driver
$defaultUrl = StorageUrl::publicUrl() //default driver
$objectUrl = StorageUrl::publicUrl('s3', '/path/to/object');
回答by Greg
Another form of Storage::cloud():
另一种形式的 Storage::cloud()：
/** @var FilesystemAdapter $disk */
$s3 = Storage::disk('s3');
return $s3->url($path);
