Init.php

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<?php
 
declare(strict_types=1);
 
namespace ILIAS\FileDelivery;
 
use ILIAS\FileDelivery\Delivery\StreamDelivery;
use ILIAS\DI\Container;
use ILIAS\FileDelivery\Setup\KeyRotationObjective;
use ILIAS\FileDelivery\Token\Signer\Key\Secret\SecretKey;
use ILIAS\FileDelivery\Token\DataSigner;
use ILIAS\FileDelivery\Token\Signer\Key\Secret\SecretKeyRotation;
use ILIAS\FileDelivery\Delivery\ResponseBuilder\XSendFileResponseBuilder;
use ILIAS\FileDelivery\Delivery\ResponseBuilder\PHPResponseBuilder;
use ILIAS\FileDelivery\Delivery\ResponseBuilder\ResponseBuilder;
use ILIAS\FileDelivery\Setup\DeliveryMethodObjective;
use ILIAS\FileDelivery\Delivery\LegacyDelivery;
use ILIAS\FileDelivery\Delivery\ResponseBuilder\XAccelResponseBuilder;
 
class Init
{
    public static function init(Container $c): void
    {
        $c['file_delivery.response_builder'] = static function (): ResponseBuilder {
            $settings = (@include DeliveryMethodObjective::PATH()) ?? [];
 
            return match ($settings[DeliveryMethodObjective::SETTINGS] ?? null) {
                DeliveryMethodObjective::XACCEL => new XAccelResponseBuilder(
                    $settings[DeliveryMethodObjective::SETTINGS_EXTERNAL_DATA_DIR]
                ),
                DeliveryMethodObjective::XSENDFILE => new XSendFileResponseBuilder(),
                default => new PHPResponseBuilder(),
            };
        };
 
        $c['file_delivery.fallback_response_builder'] = (static fn(): ResponseBuilder => new PHPResponseBuilder());
 
        $c['file_delivery.data_signer'] = static function (): DataSigner {
            $keys = array_map(static fn(string $key): SecretKey => new SecretKey($key), (require KeyRotationObjective::PATH()) ?? []);
 
            $current_key = array_shift($keys);
 
            return new DataSigner(
                new SecretKeyRotation(
                    $current_key,
                    ...$keys
                )
            );
        };
 
        $c['file_delivery.delivery'] = static function () use ($c): StreamDelivery {
            // if http is not initialized, we need to do it here
            if (!$c->offsetExists('http')) {
                $init_http = new \InitHttpServices();
                $init_http->init($c);
            }
 
            return new StreamDelivery(
                $c['file_delivery.data_signer'],
                $c['http'],
                $c['file_delivery.response_builder'],
                $c['file_delivery.fallback_response_builder']
            );
        };
 
        $c['file_delivery.legacy_delivery'] = static function () use ($c): LegacyDelivery {
            // if http is not initialized, we need to do it here
            if (!$c->offsetExists('http')) {
                $init_http = new \InitHttpServices();
                $init_http->init($c);
            }
 
            return new LegacyDelivery(
                $c['http'],
                $c['file_delivery.response_builder'],
                $c['file_delivery.fallback_response_builder']
            );
        };
 
        $c['file_delivery'] = (static fn(): Services => new Services(
            $c['file_delivery.delivery'],
            $c['file_delivery.legacy_delivery'],
            $c['file_delivery.data_signer'],
            $c['http']
        ));
    }
}