<?php
namespace Livewire\HydrationMiddleware;
use Livewire\ComponentChecksumManager;
use Livewire\Exceptions\CorruptComponentPayloadException;
class SecureHydrationWithChecksum implements HydrationMiddleware
{
public static function hydrate($unHydratedInstance, $request)
{
// Make sure the data coming back to hydrate a component hasn't been tampered with.
$checksumManager = new ComponentChecksumManager;
$checksum = $request->memo['checksum'];
unset($request->memo['checksum']);
throw_unless(
$checksumManager->check($checksum, $request->fingerprint, $request->memo),
new CorruptComponentPayloadException($unHydratedInstance::getName())
);
}
public static function dehydrate($instance, $response)
{
$response->memo['checksum'] = (new ComponentChecksumManager)->generate($response->fingerprint, $response->memo);
}
}