EcPhp\ReverseProxyHelperBundle\Service\RequestHeadersAlter

Complexity

Total Complexity

4

Size/Duplication

Total Lines	45
Duplicated Lines	0 %

Test Coverage

Coverage

100%

Importance

Changes

0

2 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	3	1
A	alter()	0	30	3

<?php

declare(strict_types=1);

namespace EcPhp\ReverseProxyHelperBundle\Service;

use Symfony\Component\HttpFoundation\Request;

use function array_key_exists;

use const FILTER_VALIDATE_URL;

final class RequestHeadersAlter implements RequestAlterInterface
{
    /**
     * @var array<mixed>
     */
    private array $parameters;

    /**
     * @param array<mixed> $parameters
     */
    public function __construct(array $parameters)
    {
        $this->parameters = $parameters;
    }

    public function alter(Request $request): Request
    {
        $parsed = parse_url($this->parameters['base_url']);

        if (false === array_key_exists('host', $parsed)) {
            return $request;
        }

        if (false === filter_var($this->parameters['base_url'], FILTER_VALIDATE_URL)) {
            return $request;
        }

        $request
            ->headers
            ->add(
                array_map(
                    static fn (string $key): string => (string) $parsed[$key],
                    array_filter(
                        [
                            'X-Forwarded-Host' => 'host',
                            'X-Forwarded-Proto' => 'scheme',
                            'X-Forwarded-Port' => 'port',
                            'X-Forwarded-Prefix' => 'path',
                        ],
                        static fn (string $key): bool => array_key_exists($key, $parsed)
                    )
                )
            );

        return $request;
    }
}