. */ declare(strict_types=1); namespace Fisharebest\Webtrees; use Closure; use Fisharebest\Webtrees\Http\Exceptions\HttpBadRequestException; use LogicException; use Psr\Http\Message\ServerRequestInterface; use function array_reduce; use function ctype_digit; use function is_array; use function is_int; use function is_string; use function parse_url; use function preg_match; use function str_starts_with; /** * Validate a parameter from an HTTP request */ class Validator { /** @var array> */ private array $parameters; /** @var array */ private array $rules = []; /** * @param array> $parameters */ public function __construct(array $parameters) { $this->parameters = $parameters; } /** * @param ServerRequestInterface $request * * @return self */ public static function parsedBody(ServerRequestInterface $request): self { return new self((array) $request->getParsedBody()); } /** * @param ServerRequestInterface $request * * @return self */ public static function queryParams(ServerRequestInterface $request): self { return new self($request->getQueryParams()); } /** * @param int $minimum * @param int $maximum * * @return self */ public function isBetween(int $minimum, int $maximum): self { $this->rules[] = static function (?int $value) use ($minimum, $maximum): ?int { if (is_int($value) && $value >= $minimum && $value <= $maximum) { return $value; } return null; }; return $this; } /** * @param string $base_url * * @return $this */ public function isLocalUrl(string $base_url): self { $this->rules[] = static function (?string $value) use ($base_url): ?string { if (is_string($value)) { $value_info = parse_url($value); $base_url_info = parse_url($base_url); if (!is_array($base_url_info)) { throw new LogicException(__METHOD__ . ' needs a valid URL'); } if (is_array($value_info)) { $scheme_ok = ($value_info['scheme'] ?? 'http') === ($base_url_info['scheme'] ?? 'http'); $host_ok = ($value_info['host'] ?? '') === ($base_url_info['host'] ?? ''); $port_ok = ($value_info['port'] ?? '') === ($base_url_info['port'] ?? ''); $user_ok = ($value_info['user'] ?? '') === ($base_url_info['user'] ?? ''); $path_ok = str_starts_with($value_info['path'] ?? '/', $base_url_info['path'] ?? '/'); if ($scheme_ok && $host_ok && $port_ok && $user_ok && $path_ok) { return $value; } } } return null; }; return $this; } /** * @return $this */ public function isXref(): self { $this->rules[] = static function (?string $value): ?string { if (is_string($value) && preg_match('/^' . Gedcom::REGEX_XREF . '$/', $value) === 1) { return $value; } return null; }; return $this; } /** * @param string $parameter * * @return array|null */ public function array(string $parameter): ?array { $value = $this->parameters[$parameter] ?? null; if (!is_array($value)) { $value = null; } $callback = static fn (?array $value, Closure $rule): ?array => $rule($value); return array_reduce($this->rules, $callback, $value); } /** * @param string $parameter * * @return int|null */ public function integer(string $parameter): ?int { $value = $this->parameters[$parameter] ?? null; if (is_string($value) && ctype_digit($value)) { $value = (int) $value; } else { $value = null; } $callback = static fn (?int $value, Closure $rule): ?int => $rule($value); return array_reduce($this->rules, $callback, $value); } /** * @param string $parameter * * @return string|null */ public function string(string $parameter): ?string { $value = $this->parameters[$parameter] ?? null; if (!is_string($value)) { $value = null; } $callback = static fn (?string $value, Closure $rule): ?string => $rule($value); return array_reduce($this->rules, $callback, $value); } /** * @param string $parameter * * @return array */ public function requiredArray(string $parameter): array { $value = $this->array($parameter); if ($value === null) { throw new HttpBadRequestException(I18N::translate('The parameter “%s” is missing.', $parameter)); } return $value; } /** * @param string $parameter * * @return int */ public function requiredInteger(string $parameter): int { $value = $this->integer($parameter); if ($value === null) { throw new HttpBadRequestException(I18N::translate('The parameter “%s” is missing.', $parameter)); } return $value; } /** * @param string $parameter * * @return string */ public function requiredString(string $parameter): string { $value = $this->string($parameter); if ($value === null) { throw new HttpBadRequestException(I18N::translate('The parameter “%s” is missing.', $parameter)); } return $value; } }