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<?php |
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declare(strict_types=1); |
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namespace Nymfonya\Component\Http; |
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use Nymfonya\Component\Http\Interfaces\RoutesInterface; |
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use Nymfonya\Component\Http\Route; |
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class Routes implements RoutesInterface |
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{ |
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/** |
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* route list as array |
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* |
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* @var array |
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*/ |
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private $routes = []; |
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/** |
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* __construct |
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* |
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* @param array $routesConfig |
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*/ |
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public function __construct(array $routesConfig = []) |
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{ |
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if (!empty($routesConfig)) { |
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$this->set($routesConfig); |
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} |
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} |
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/** |
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* set routes as array and stack Route collection |
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* |
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* @param array $routesConfig |
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* @return RoutesInterface |
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*/ |
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public function set(array $routesConfig): RoutesInterface |
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{ |
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$this->routes = []; |
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$this->prepare($routesConfig); |
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$this->validate(); |
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return $this; |
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} |
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/** |
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* returns routes as array |
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* |
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* @return array |
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*/ |
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public function get(): array |
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{ |
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return $this->routes; |
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} |
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/** |
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* returns routes as array |
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* |
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* @return array |
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*/ |
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public function getExpr(): array |
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{ |
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$patterns = array_map( |
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function (Route $i) { |
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return $i->getExpr(); |
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}, |
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$this->routes |
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); |
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return $patterns; |
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} |
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/** |
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* stacks routes as Route object collection from routes config |
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* |
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* @param array $routesConfig |
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* @return RoutesInterface |
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*/ |
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protected function prepare(array $routesConfig): RoutesInterface |
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{ |
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$count = count($routesConfig); |
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for ($c = 0; $c < $count; $c++) { |
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$this->routes[] = new Route($routesConfig[$c]); |
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} |
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return $this; |
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} |
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/** |
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* validate routes to be an array of regexp string |
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* |
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* @throws Exception |
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*/ |
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protected function validate() |
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{ |
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$count = count($this->routes); |
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for ($c = 0; $c < $count; $c++) { |
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$route = $this->routes[$c]->getExpr(); |
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if ($this->isInvalidRegexp($route)) { |
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throw new \Exception('Route invalid expr ' . $route); |
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} |
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} |
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} |
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/** |
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* return true if regexp is invalid |
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* |
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* @param string $regExp |
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* @return boolean |
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*/ |
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protected function isInvalidRegexp(string $regExp): bool |
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{ |
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@preg_match($regExp, ''); |
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return (preg_last_error() != PREG_NO_ERROR); |
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} |
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} |
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If you suppress an error, we recommend checking for the error condition explicitly: