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- <?php
-
- namespace Luticate\Utils\Controller;
-
- use FastRoute\Dispatcher;
- use Luticate\Utils\Business\LuBusinessException;
- use Luticate\Utils\Business\LuMethodDocParser;
- use Luticate\Utils\Dbo\LuDboConstraintException;
- use Luticate\Utils\Dbo\LuDboDeserializeException;
- use FastRoute\DataGenerator\GroupCountBased as DataGeneratorGroupCountBased;
- use FastRoute\Dispatcher\GroupCountBased as DispatcherGroupCountBased;
- use FastRoute\RouteCollector;
- use FastRoute\RouteParser\Std;
- use Luticate\Utils\Dbo\LuMiddlewareDbo;
- use Luticate\Utils\Dbo\LuRouteDbo;
- use Luticate\Utils\Middleware\LuAbstractMiddleware;
-
- class LuRoute {
-
- const REG_UINT = "[0-9]+";
- const REG_INT = "\\-?" . self::REG_UINT;
- const REG_BOOL = "true|false";
-
- /**
- * @var DispatcherGroupCountBased
- */
- private $_dispatcher = null;
-
- /**
- * @var LuMiddlewareDbo[]
- */
- private $_middlewares = [];
-
- /**
- * @var LuRouteDbo[]
- */
- private $routes = array();
-
- public function __construct()
- {
- }
-
- public function getRoutes()
- {
- return $this->routes;
- }
-
- /**
- * @param $middleware mixed
- */
- public function addMiddleware($middleware)
- {
- if (is_string($middleware)) {
- $this->_middlewares[] = new LuMiddlewareDbo($middleware);
- }
- else if (is_array($middleware)) {
- $this->_middlewares[] = LuMiddlewareDbo::jsonDeserialize($middleware);
- }
- else {
- $this->_middlewares[] = $middleware;
- }
- }
-
- public function setup()
- {
- $routeCollector = new RouteCollector(new Std(), new DataGeneratorGroupCountBased());
- $router = $this;
-
- foreach ($this->getRoutes() as $route) {
- $routeCollector->addRoute($route->getMethod(), $route->getUrl(), function($parameters) use($route, $router)
- {
- return $router->execute($route, $parameters);
- });
- }
-
- $this->_dispatcher = new DispatcherGroupCountBased($routeCollector->getData());
- }
-
- public function execute(LuRouteDbo $route, $parameters)
- {
- $middlewares = [];
- /**
- * @var $middlewareDbo LuMiddlewareDbo
- */
- foreach (array_merge($this->_middlewares, $route->getMiddlewares()) as $middlewareDbo) {
- $middlewareName = $middlewareDbo->getMiddleware();
- /**
- * @var $middleware LuAbstractMiddleware
- */
- $middleware = new $middlewareName();
- $parameters["_middleware"] = $middlewareDbo->getParameters();
- foreach ($route->getParameters() as $key => $value) {
- $parameters["_middleware"][$key] = $value;
- }
- $parameters = $middleware->onBefore($route, $parameters);
- $middlewares[] = [
- 'middleware' => $middleware,
- 'dbo' => $middlewareDbo
- ];
- }
- unset($parameters["_middleware"]);
-
- $reflect = new \ReflectionMethod($route->getController(), $route->getAction());
- $params = $reflect->getParameters();
- $docs = new LuMethodDocParser($reflect->getDocComment());
- $docs->parse();
-
- $args = array();
- foreach ($params as $param) {
-
- try {
- if ($param->isOptional()) {
- $value = null;
- if (array_key_exists($param->getName(), $parameters)) {
- $value = $this->getParam($param, $parameters[$param->getName()]);
- }
- else {
- $value = $param->getDefaultValue();
- }
- }
- else {
- if (array_key_exists($param->getName(), $parameters)) {
- $value = $this->getParam($param, $parameters[$param->getName()]);
- }
- else {
- throw new LuDboDeserializeException("Missing parameter '" . $param->getName() . "'", 400);
- }
- }
-
- if (array_key_exists($param->getName(), $docs->getParams())) {
- $doc = $docs->getParams()[$param->getName()];
- if (is_null($value) && $doc->isNotNull()) {
- throw new LuDboConstraintException("Parameter '" . $param->getName() . "' can not be null", 400);
- }
-
- if (!is_null($value)) {
- $value->checkConstraints($doc->getConstraints());
- }
- }
- $args[$param->getName()] = $value;
- }
- catch (LuDboConstraintException $e)
- {
- $paramName = $param->getName();
- throw new LuBusinessException("Invalid value for '${paramName}': " . $e->getMessage(), 400, $e);
- }
- catch (LuDboDeserializeException $e)
- {
- $paramName = $param->getName();
- throw new LuBusinessException("Failed to deserialize '${paramName}': " . $e->getMessage(), 400, $e);
- }
- }
-
- $controller = $route->getController();
- $controllerInstance = new $controller();
- $result = call_user_func_array(array($controllerInstance, $route->getAction()), $args);
-
- foreach ($middlewares as $middlewareArray) {
- $middleware = $middlewareArray['middleware'];
- $middlewareDbo = $middlewareArray['dbo'];
- $parameters["_middleware"] = $middlewareDbo->getParameters();
- foreach ($route->getParameters() as $key => $value) {
- $parameters["_middleware"][$key] = $value;
- }
- $result = $middleware->onAfter($route, $parameters, $result);
- }
-
- return $result;
- }
-
- public function dispatch(string $httpMethod, string $url, $parameters)
- {
- $routeInfo = $this->_dispatcher->dispatch($httpMethod, $url);
-
- if ($routeInfo[0] == Dispatcher::NOT_FOUND) {
- throw new LuBusinessException("Route not found", 404);
- }
- else if ($routeInfo[0] == Dispatcher::METHOD_NOT_ALLOWED) {
- throw new LuBusinessException("Method not allowed", 405);
- }
- else {
- $handler = $routeInfo[1];
- $urlVars = $routeInfo[2];
- $parameters = array_merge($parameters, $urlVars);
- return $handler($parameters);
- }
- }
-
- private function getClassName(\ReflectionParameter $param) {
- preg_match('/\[\s\<\w+?>\s([\w]+)/s', $param->__toString(), $matches);
- return isset($matches[1]) ? $matches[1] : null;
- }
-
- private function getParam(\ReflectionParameter $param, $value)
- {
- $typedValue = null;
- $className = $this->getClassName($param);
- if (is_null($className)) {
- $typedValue = $value;
- }
- else {
- $class = $param->getClass();
- try
- {
- $json = json_decode($value, true);
- $typedValue = call_user_func_array(array($class->getName(), "jsonDeserialize"), array($json));
- }
- catch (\Exception $e)
- {
- if ($e instanceof LuDboDeserializeException || $e instanceof LuDboConstraintException) {
- throw $e;
- }
- throw new LuBusinessException("Unable to parse JSON value for '" . $param->getName() . "'", 400, $e);
- }
- }
- return $typedValue;
- }
-
- public function addRoute2(LuRouteDbo $route) {
- $controller = $route->getController();
- if (strpos($controller, "\\") === false) {
- $controller = "App\\Controller\\" . $controller . "Controller";
- }
- $route->setController($controller);
- $this->routes[] = $route;
- }
-
- public function addRoute(string $httpMethod, string $url, string $controller, string $method, $parameters = array(), $middlewares = array())
- {
- $middlewaresDbo = [];
- foreach ($middlewares as $middleware) {
- if (is_string($middleware)) {
- $middlewaresDbo[] = new LuMiddlewareDbo($middleware);
- }
- else if (is_array($middleware)) {
- $middlewaresDbo[] = LuMiddlewareDbo::jsonDeserialize($middleware);
- }
- else {
- $middlewaresDbo[] = $middleware;
- }
- }
-
- $route = new LuRouteDbo();
- $route->setUrl($url);
- $route->setController($controller);
- $route->setAction($method);
- $route->setMiddlewares($middlewaresDbo);
- $route->setParameters($parameters);
- $route->setMethod($httpMethod);
-
- $this->addRoute2($route);
- }
-
- public function get(string $url, string $controller, string $method, $parameters = array(), $middleware = array())
- {
- $this->addRoute("GET", $url, $controller, $method, $parameters, $middleware);
- }
-
- public function post(string $url, string $controller, string $method, $parameters = array(), $middleware = array())
- {
- $this->addRoute("POST", $url, $controller, $method, $parameters, $middleware);
- }
-
- public function put(string $url, string $controller, string $method, $parameters = array(), $middleware = array())
- {
- $this->addRoute("PUT", $url, $controller, $method, $parameters, $middleware);
- }
-
- public function delete(string $url, string $controller, string $method, $parameters = array(), $middleware = array())
- {
- $this->addRoute("DELETE", $url, $controller, $method, $parameters, $middleware);
- }
- }
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