Storage::put support Psr\Http\Message\StreamInterface

[tjallingt]

I'm currently working with Guzzle and I noticed that Laravel Filesystem doesn't use streaming with classes implementing Psr\Http\Message\StreamInterface. At https://github.com/laravel/framework/blob/5.6/src/Illuminate/Filesystem/FilesystemAdapter.php#L164-L181 is_resource() will return false and thus Flysystem put will be called instead of putStream. Flysystem::put uses file_put_content() which AFAIK will implicitly cast to a string.

Currently the workaround is to detach the resource from the streaminterface:

$client = new \GuzzleHttp\Client();
$response = $client->request('GET', 'path/to/file');
$stream = $response->getBody();
$resource = $stream->detach();
Storage::put("path/to/file", $resource);
fclose($resource);

if Laravel handled the Psr7\Streaminterface I could write (and not worry about running out of memory):

$client = new \GuzzleHttp\Client();
$response = $client->request('GET', 'path/to/file');
Storage::put("path/to/file", $response->getBody());

Hope this makes sense and I'm not massively misunderstanding anything,
Cheers