SendRemoteFile

The Sendremotefile HTTP middleware and the X-Sendremotefile HTTP response headers are used to stream large files using the RoadRunner. Unlike X-Sendfile middleware Sendremotefile allows passing a URL as header value. While the file is being streamed with the help of the RoadRunner, the PHP worker may be accepting the next request.

The middleware reads the file in 10MB chunks. For example, for the 5Gb file, only 10MB of RSS is used. If the file is smaller than 10MB, the middleware adjusts the buffer to fit the file size.

Configuration

.rr.yaml

version: "3"

http:
  address: 127.0.0.1:55555
  max_request_size: 1024
  access_logs: false
  middleware: [ "sendremotefile" ]

  pool:
    num_workers: 2
    max_jobs: 0
    allocate_timeout: 60s
    destroy_timeout: 60s

Samples

worker.php

<?php

use Nyholm\Psr7\Response;
use Spiral\Goridge;
use Spiral\RoadRunner;

ini_set('display_errors', 'stderr');
require __DIR__ . "/vendor/autoload.php";

$worker = new RoadRunner\Worker(new Goridge\StreamRelay(STDIN, STDOUT));
$psr17Factory = new \Nyholm\Psr7\Factory\Psr17Factory();
$psr7 = new RoadRunner\Http\PSR7Worker($worker, $psr17Factory, $psr17Factory, $psr17Factory);

while ($req = $psr7->waitRequest()) {
    try {
        $resp = new Response(
            200,
            ["X-Sendremotefile" => "https://example.com/file.mp4", "Content-Disposition" => "attachment; filename=file.mp4"]
        );

        $psr7->respond($resp);
        unset($resp);
    } catch (\Throwable $e) {
        $psr7->getWorker()->error((string)$e);
    }
}