misc_pterodactyl-panel/app/Services/Helpers/AssetHashService.php
2019-09-05 21:32:57 -07:00

142 lines
4 KiB
PHP

<?php
namespace Pterodactyl\Services\Helpers;
use Cake\Chronos\Chronos;
use Illuminate\Filesystem\FilesystemManager;
use Illuminate\Contracts\Foundation\Application;
use Illuminate\Contracts\Cache\Repository as CacheRepository;
class AssetHashService
{
/**
* Location of the manifest file generated by gulp.
*/
public const MANIFEST_PATH = './assets/manifest.json';
/**
* @var \Illuminate\Contracts\Cache\Repository
*/
private $cache;
/**
* @var \Illuminate\Contracts\Filesystem\Filesystem
*/
private $filesystem;
/**
* @var \Illuminate\Contracts\Foundation\Application
*/
private $application;
/**
* @var null|array
*/
protected static $manifest;
/**
* AssetHashService constructor.
*
* @param \Illuminate\Contracts\Foundation\Application $application
* @param \Illuminate\Contracts\Cache\Repository $cache
* @param \Illuminate\Filesystem\FilesystemManager $filesystem
*/
public function __construct(Application $application, CacheRepository $cache, FilesystemManager $filesystem)
{
$this->application = $application;
$this->cache = $cache;
$this->filesystem = $filesystem->createLocalDriver(['root' => public_path()]);
}
/**
* Modify a URL to append the asset hash.
*
* @param string $resource
* @return string
*
* @throws \Illuminate\Contracts\Filesystem\FileNotFoundException
*/
public function url(string $resource): string
{
$file = last(explode('/', $resource));
$data = array_get($this->manifest(), $file, $file);
return str_replace($file, array_get($data, 'src', $file), $resource);
}
/**
* Return the data integrity hash for a resource.
*
* @param string $resource
* @return string
*
* @throws \Illuminate\Contracts\Filesystem\FileNotFoundException
*/
public function integrity(string $resource): string
{
$file = last(explode('/', $resource));
$data = array_get($this->manifest(), $file, $file);
return array_get($data, 'integrity', '');
}
/**
* Return a built CSS import using the provided URL.
*
* @param string $resource
* @return string
*
* @throws \Illuminate\Contracts\Filesystem\FileNotFoundException
*/
public function css(string $resource): string
{
return '<link href="' . $this->url($resource) . '"
rel="stylesheet preload"
as="style"
crossorigin="anonymous"
integrity="' . $this->integrity($resource) . '"
referrerpolicy="no-referrer">';
}
/**
* Return a built JS import using the provided URL.
*
* @param string $resource
* @return string
*
* @throws \Illuminate\Contracts\Filesystem\FileNotFoundException
*/
public function js(string $resource): string
{
return '<script src="' . $this->url($resource) . '"
integrity="' . $this->integrity($resource) . '"
crossorigin="anonymous"></script>';
}
/**
* Get the asset manifest and store it in the cache for quicker lookups.
*
* @return array
*
* @throws \Illuminate\Contracts\Filesystem\FileNotFoundException
*/
protected function manifest(): array
{
if (! is_null(self::$manifest)) {
return self::$manifest;
}
// Skip checking the cache if we are not in production.
if ($this->application->environment() === 'production') {
$stored = $this->cache->get('Core:AssetManifest');
if (! is_null($stored)) {
return self::$manifest = $stored;
}
}
$contents = json_decode($this->filesystem->get(self::MANIFEST_PATH), true);
$this->cache->put('Core:AssetManifest', $contents, Chronos::now()->addMinutes(1440));
return self::$manifest = $contents;
}
}