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<?php |
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namespace Tleckie\InjectorDetect; |
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use InvalidArgumentException; |
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use Psr\Http\Message\ServerRequestInterface; |
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use Tleckie\InjectorDetect\Rules\DefaultRule; |
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use function base64_decode; |
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use function is_array; |
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use function parse_str; |
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use function urldecode; |
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/** |
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* Class Detector |
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* |
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* @package Tleckie\InjectorDetect |
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* @author Teodoro Leckie Westberg <[email protected]> |
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*/ |
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class Detector implements DetectorInterface |
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{ |
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/** @var RulesInterface[] */ |
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private array $rules = []; |
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/** |
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* Detector constructor. |
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*/ |
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public function __construct() |
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{ |
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$this->addRule(new DefaultRule()); |
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} |
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/** |
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* @param RulesInterface $rule |
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* @return DetectorInterface |
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*/ |
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public function addRule(RulesInterface $rule): DetectorInterface |
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{ |
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$this->rules[] = $rule; |
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return $this; |
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} |
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/** |
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* @param ServerRequestInterface $request |
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* @throws InvalidArgumentException |
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*/ |
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public function check(ServerRequestInterface $request): void |
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{ |
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$requestParams = $this->parseQueryString(urldecode($request->getUri()->getQuery())); |
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$bodyParams = $request->getParsedBody() ?? []; |
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foreach ($this->rules as $rule) { |
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foreach ($requestParams as $item) { |
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$this->arrayRecursive($rule, $item); |
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} |
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foreach ($bodyParams as $item) { |
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$this->arrayRecursive($rule, $item); |
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} |
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} |
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} |
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/** |
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* @param string $queryString |
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* @return array |
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*/ |
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private function parseQueryString(string $queryString): array |
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{ |
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$data = []; |
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parse_str($queryString, $data); |
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return $data; |
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} |
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/** |
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* @param RulesInterface $rule |
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* @param mixed $valueToCheck |
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* @return DetectorInterface |
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*/ |
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private function arrayRecursive(RulesInterface $rule, mixed $valueToCheck): DetectorInterface |
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{ |
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if (is_array($valueToCheck)) { |
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foreach ($valueToCheck as $value) { |
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return $this->arrayRecursive($rule, $value); |
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} |
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} |
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$rule->check(base64_decode($valueToCheck))->check($valueToCheck); |
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return $this; |
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} |
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} |
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teodoroleckie /
injector-detect
