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<?php
declare(strict_types=1);
namespace Laminas\Filter;
use Laminas\Filter\Exception\InvalidArgumentException;
use function is_string;
use function ltrim;
use function parse_url;
use function preg_match;
use function preg_quote;
use function preg_replace;
use function sprintf;
/**
* @psalm-type Options = array{scheme: non-empty-string}
*/
final class ForceUriScheme implements FilterInterface
{
private const DEFAULT_SCHEME = 'https';
/** @var non-empty-string */
private string $scheme;
/** @param Options $options */
public function __construct(array $options = ['scheme' => self::DEFAULT_SCHEME])
{
if (! preg_match('/^[a-z0-9]+$/i', $options['scheme'])) {
throw new InvalidArgumentException(sprintf(
'The `scheme` option should be a string consisting only of letters and numbers. Please omit the :// '
. ' Received "%s"',
$options['scheme'],
));
}
$this->scheme = $options['scheme'];
}
public function __invoke(mixed $value): mixed
{
return $this->filter($value);
}
public function filter(mixed $value): mixed
{
if (! is_string($value) || $value === '') {
return $value;
}
$url = parse_url($value);
if (! isset($url['host']) || $url['host'] === '') {
return $value;
}
if (! isset($url['scheme']) || $url['scheme'] === '') {
return sprintf(
'%s://%s',
$this->scheme,
ltrim($value, ':/'),
);
}
$search = sprintf(
'/^(%s)(.+)/',
preg_quote($url['scheme'], '/'),
);
$replace = sprintf(
'%s$2',
$this->scheme,
);
return preg_replace($search, $replace, $value);
}
}