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<?php namespace Comodojo\Dispatcher\Router; |
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use \Comodojo\Foundation\Base\Configuration; |
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use \Comodojo\Dispatcher\Components\AbstractModel; |
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use \Comodojo\Dispatcher\Cache\RouterCache; |
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use \Comodojo\Dispatcher\Request\Model as Request; |
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use \Comodojo\Dispatcher\Router\Parser; |
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use \Comodojo\Dispatcher\Router\Route; |
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use \Comodojo\Dispatcher\Router\Model as Router; |
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use \Comodojo\SimpleCache\Manager as SimpleCacheManager; |
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use \Comodojo\Exception\DispatcherException; |
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use \Psr\Log\LoggerInterface; |
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use \Countable; |
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use \Exception; |
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/** |
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* @package Comodojo Dispatcher |
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* @author Marco Giovinazzi <[email protected]> |
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* @author Marco Castiello <[email protected]> |
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* @license GPL-3.0+ |
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* |
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* LICENSE: |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Affero General Public License as |
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* published by the Free Software Foundation, either version 3 of the |
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* License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Affero General Public License for more details. |
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* |
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* You should have received a copy of the GNU Affero General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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class Table extends AbstractModel implements Countable { |
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/** |
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* Types of route that this table will accept |
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* @var array |
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*/ |
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const ALLOWED_ROUTES = [ "ROUTE", "REDIRECT", "ERROR" ]; |
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/** |
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* Current repository of routes |
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* @var array |
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*/ |
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protected $routes = []; |
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/** |
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* @var Parser |
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*/ |
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protected $parser; |
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/** |
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* @var RouterCache |
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*/ |
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protected $cache; |
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/** |
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* Table constructor |
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* |
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* @param Configuration $configuration |
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* @param LoggerInterface $logger |
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* @param SimpleCacheManager $cache |
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*/ |
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public function __construct( |
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Configuration $configuration, |
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LoggerInterface $logger, |
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SimpleCacheManager $cache |
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) { |
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parent::__construct($configuration, $logger); |
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$this->parser = new Parser($logger); |
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$this->cache = new RouterCache($cache); |
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$this->readCache(); |
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} |
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public function add( |
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$route, |
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$type, |
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$class = null, |
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array $parameters = [] |
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) { |
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$type = strtoupper($type); |
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if ( !in_array($type, self::ALLOWED_ROUTES) ) { |
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$this->getLogger()->error("Invalid route definition - unknown type $type for route $route)"); |
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} else if ( $type == 'ROUTE' && empty($class) ) { |
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$this->getLogger()->error("Invalid route definition - missing class for route $route)"); |
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} else { |
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$routeData = $this->get($route); |
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if ( !is_null($routeData) ) { |
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$this->updateRoute($routeData, $type, $class, $parameters); |
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} else { |
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$folders = explode("/", $route); |
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$this->registerRoute($folders, $type, $class, $parameters); |
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} |
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} |
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return $this; |
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} |
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/** |
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* Get registered routes count |
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* |
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* @return int |
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*/ |
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public function count() { |
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return count($this->routes); |
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} |
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public function getRoutes() { |
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return $this->routes; |
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} |
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public function get($route) { |
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$regex = $this->regex($route); |
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if (isset($this->routes[$regex])) { |
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return $this->routes[$regex]; |
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} |
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return null; |
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} |
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public function regex($route) { |
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$folders = explode("/", $route); |
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return $this->parser->read($folders); |
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} |
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public function remove($route) { |
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$regex = $this->regex($route); |
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$routes = $this->routes; |
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if (isset($routes[$regex])) { |
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unset($routes[$regex]); |
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$this->routes = $routes; |
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return true; |
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} |
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return false; |
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} |
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public function defaultRoute() { |
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return $this->get('/'); |
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} |
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public function load(array $routes) { |
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if (!empty($routes)) { |
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foreach ($routes as $name => $route) { |
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$this->add( |
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$route['route'], |
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$route['type'], |
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empty($route['class']) ? null : $route['class'], |
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empty($route['parameters']) ? [] : $route['parameters'] |
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); |
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} |
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} |
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$count = $this->count(); |
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$this->logger->debug("$count routes loaded in routing table"); |
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$this->dumpCache(); |
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} |
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// This method add a route to the supported list |
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private function registerRoute($folders, $type, $class = null, array $parameters = []) { |
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// The values associated with a route are as follows: |
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// $route = new Route($this->router); |
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$route = new Route(); |
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$this->updateRoute($route, $type, $class, $parameters); |
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// $route->setType($type) // Type of route |
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// ->setClassName($class) // Class to be invoked |
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// ->setParameters($parameters); // Parameters passed via the composer.json configuration (cache, ttl, etc...) |
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$this->logger->debug("Route table - route: ".implode("/", $folders)); |
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// This method generate a global regular expression which will be able to match all the URI supported by the route |
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$regex = $this->parser->read($folders, $route); |
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$this->logger->debug("Route table - route regex: $regex"); |
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$this->routes = array_merge($this->routes, [$regex => $route]); |
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} |
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private function updateRoute(Route $route, $type, $class = null, array $parameters = []) { |
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$route->setType($type) |
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->setClassName($class) |
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->setParameters($parameters); |
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if ( !empty($parameters['redirect-code']) ) $route->setRedirectCode($parameters['redirect-code']); |
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if ( !empty($parameters['redirect-location']) ) $route->setRedirectLocation($parameters['redirect-location']); |
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if ( !empty($parameters['redirect-message']) ) $route->setRedirectLocation($parameters['redirect-message']); |
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if ( !empty($parameters['redirect-type']) ) $route->setRedirectType($parameters['redirect-type']); |
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if ( !empty($parameters['error-code']) ) $route->setErrorCode($parameters['error-code']); |
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if ( !empty($parameters['error-message']) ) $route->setErrorMessage($parameters['error-message']); |
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} |
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private function readCache() { |
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if ($this->configuration->get('routing-table-cache') !== true) return; |
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$data = $this->cache->read(); |
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if (is_null($data)) { |
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$this->routes = []; |
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return; |
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} |
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$this->routes = $data; |
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$this->logger->debug("Routing table loaded from cache"); |
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} |
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private function dumpCache() { |
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if ($this->configuration->get('routing-table-cache') !== true) return; |
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$ttl = $this->configuration->get('routing-table-ttl'); |
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if ($this->cache->dump($this->routes, $ttl)) { |
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$this->logger->debug("Routing table saved to cache"); |
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} else { |
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$this->logger->warning("Cannot save routing table to cache"); |
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} |
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} |
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} |
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