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<?php |
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defined('ROOT_PATH') or exit('Access denied'); |
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/** |
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* TNH Framework |
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* |
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* A simple PHP framework using HMVC architecture |
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* |
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* This content is released under the GNU GPL License (GPL) |
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* |
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* Copyright (C) 2017 Tony NGUEREZA |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version 3 |
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* of the 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 General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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*/ |
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class Router { |
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/** |
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* @var array $pattern: The list of URIs to validate against |
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*/ |
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private $pattern = array(); |
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/** |
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* @var array $callback: The list of callback to call |
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*/ |
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private $callback = array(); |
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/** |
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* @var string $uriTrim: The char to remove from the URIs |
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*/ |
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protected $uriTrim = '/\^$'; |
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/** |
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* The module name of the current request |
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* @var string |
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*/ |
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protected $module = null; |
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/** |
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* The controller name of the current request |
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* @var string |
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*/ |
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protected $controller = null; |
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/** |
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* The controller path |
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* @var string |
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*/ |
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protected $controllerPath = null; |
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/** |
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* The method name. The default value is "index" |
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* @var string |
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*/ |
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protected $method = 'index'; |
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/** |
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* List of argument to pass to the method |
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* @var array |
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*/ |
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protected $args = array(); |
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/** |
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* List of routes configurations |
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* @var array |
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*/ |
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protected $routes = array(); |
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/** |
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* The segments array for the current request |
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* @var array |
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*/ |
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protected $segments; |
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/** |
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* The logger instance |
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* @var Log |
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*/ |
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private $logger; |
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/** |
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* Construct the new Router instance |
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*/ |
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public function __construct(){ |
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$this->setLoggerFromParamOrCreateNewInstance(null); |
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//loading routes for module |
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$moduleRouteList = array(); |
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$modulesRoutes = Module::getModulesRoutes(); |
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if($modulesRoutes && is_array($modulesRoutes)){ |
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$moduleRouteList = $modulesRoutes; |
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unset($modulesRoutes); |
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} |
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$this->setRouteConfiguration($moduleRouteList); |
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$this->logger->info('The routes configuration are listed below: ' . stringfy_vars($this->routes)); |
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//Set route parameters |
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$this->setRouteParams(); |
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} |
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/** |
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* Add the URI and callback to the list of URIs to validate |
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* |
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* @param string $uri the request URI |
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* @param object $callback the callback function |
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*/ |
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public function add($uri, $callback) { |
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$uri = trim($uri, $this->uriTrim); |
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if(in_array($uri, $this->pattern)){ |
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$this->logger->warning('The route [' . $uri . '] already added, may be adding again can have route conflict'); |
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} |
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$this->pattern[] = $uri; |
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$this->callback[] = $callback; |
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} |
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/** |
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* Get the module name |
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* @return string |
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*/ |
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public function getModule(){ |
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return $this->module; |
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} |
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/** |
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* Get the controller name |
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* @return string |
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*/ |
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public function getController(){ |
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return $this->controller; |
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} |
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/** |
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* Get the controller file path |
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* @return string |
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*/ |
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public function getControllerPath(){ |
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return $this->controllerPath; |
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} |
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/** |
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* Get the controller method |
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* @return string |
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*/ |
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public function getMethod(){ |
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return $this->method; |
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} |
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/** |
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* Get the request arguments |
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* @return array |
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*/ |
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public function getArgs(){ |
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return $this->args; |
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} |
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/** |
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* Get the URL segments array |
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* @return array |
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*/ |
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public function getSegments(){ |
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return $this->segments; |
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} |
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/** |
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* Routing the request to the correspondant module/controller/method if exists |
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* otherwise send 404 error. |
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*/ |
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public function run() { |
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$benchmark =& class_loader('Benchmark'); |
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$benchmark->mark('ROUTING_PROCESS_START'); |
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$this->logger->debug('Routing process start ...'); |
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$segment = $this->segments; |
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$baseUrl = get_config('base_url'); |
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//check if the app is not in DOCUMENT_ROOT |
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if(isset($segment[0]) && stripos($baseUrl, $segment[0]) != false){ |
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array_shift($segment); |
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$this->segments = $segment; |
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} |
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$this->logger->debug('Check if the request URI contains the front controller'); |
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if(isset($segment[0]) && $segment[0] == SELF){ |
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$this->logger->info('The request URI contains the front controller'); |
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array_shift($segment); |
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$this->segments = $segment; |
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} |
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else{ |
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$this->logger->info('The request URI does not contain the front controller'); |
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} |
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$uri = implode('/', $segment); |
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$this->logger->info('The final Request URI is [' . $uri . ']' ); |
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//generic routes |
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$pattern = array(':num', ':alpha', ':alnum', ':any'); |
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$replace = array('[0-9]+', '[a-zA-Z]+', '[a-zA-Z0-9]+', '.*'); |
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$this->logger->debug('Begin to loop in the predefined routes configuration to check if the current request match'); |
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// Cycle through the URIs stored in the array |
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foreach ($this->pattern as $index => $uriList) { |
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$uriList = str_ireplace($pattern, $replace, $uriList); |
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// Check for an existant matching URI |
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if (preg_match("#^$uriList$#", $uri, $args)) { |
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$this->logger->info('Route found for request URI [' . $uri . '] using the predefined configuration [' . $this->pattern[$index] . '] --> [' . $this->callback[$index] . ']'); |
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array_shift($args); |
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//check if this contains an module |
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$moduleControllerMethod = explode('#', $this->callback[$index]); |
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if(is_array($moduleControllerMethod) && count($moduleControllerMethod) >= 2){ |
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$this->logger->info('The current request use the module [' .$moduleControllerMethod[0]. ']'); |
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$this->module = $moduleControllerMethod[0]; |
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$moduleControllerMethod = explode('@', $moduleControllerMethod[1]); |
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} |
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else{ |
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$this->logger->info('The current request does not use the module'); |
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$moduleControllerMethod = explode('@', $this->callback[$index]); |
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} |
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if(is_array($moduleControllerMethod)){ |
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if(isset($moduleControllerMethod[0])){ |
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$this->controller = $moduleControllerMethod[0]; |
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} |
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if(isset($moduleControllerMethod[1])){ |
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$this->method = $moduleControllerMethod[1]; |
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} |
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$this->args = $args; |
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} |
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// stop here |
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break; |
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} |
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} |
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//first if the controller is not set and the module is set use the module name as the controller |
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if(! $this->getController() && $this->getModule()){ |
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$this->logger->info('After loop in predefined routes configuration, the module name is set but the controller is not set, so we will use module as the controller'); |
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$this->controller = $this->getModule(); |
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} |
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//if can not determine the module/controller/method via the defined routes configuration we will use |
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//the URL like http://domain.com/module/controller/method/arg1/arg2 |
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if(! $this->getController()){ |
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$this->logger->info('Cannot determine the routing information using the predefined routes configuration, will use the request URI parameters'); |
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$nbSegment = count($segment); |
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//if segment is null so means no need to perform |
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if($nbSegment > 0){ |
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//get the module list |
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$modules = Module::getModuleList(); |
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//first check if no module |
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if(! $modules){ |
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$this->logger->info('No module was loaded will skip the module checking'); |
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//the application don't use module |
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//controller |
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if(isset($segment[0])){ |
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$this->controller = $segment[0]; |
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array_shift($segment); |
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} |
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//method |
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if(isset($segment[0])){ |
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$this->method = $segment[0]; |
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array_shift($segment); |
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} |
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//args |
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$this->args = $segment; |
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} |
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else{ |
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$this->logger->info('The application contains a loaded module will check if the current request is found in the module list'); |
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if(in_array($segment[0], $modules)){ |
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$this->logger->info('Found, the current request use the module [' . $segment[0] . ']'); |
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$this->module = $segment[0]; |
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array_shift($segment); |
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//check if the second arg is the controller from module |
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if(isset($segment[0])){ |
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$this->controller = $segment[0]; |
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//check if the request use the same module name and controller |
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$path = Module::findControllerFullPath(ucfirst($this->getController()), $this->getModule()); |
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if(! $path){ |
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$this->logger->info('The controller [' . $this->getController() . '] not found in the module, may be will use the module [' . $this->getModule() . '] as controller'); |
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$this->controller = $this->getModule(); |
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} |
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else{ |
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$this->controllerPath = $path; |
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array_shift($segment); |
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} |
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} |
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//check for method |
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if(isset($segment[0])){ |
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$this->method = $segment[0]; |
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array_shift($segment); |
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} |
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//the remaining is for args |
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$this->args = $segment; |
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} |
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else{ |
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$this->logger->info('The current request information is not found in the module list'); |
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//controller |
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if(isset($segment[0])){ |
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$this->controller = $segment[0]; |
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array_shift($segment); |
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} |
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//method |
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if(isset($segment[0])){ |
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$this->method = $segment[0]; |
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array_shift($segment); |
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} |
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//args |
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$this->args = $segment; |
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} |
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} |
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} |
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} |
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if(! $this->getController() && $this->getModule()){ |
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$this->logger->info('After using the request URI the module name is set but the controller is not set so we will use module as the controller'); |
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$this->controller = $this->getModule(); |
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} |
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//did we set the controller, so set the controller path |
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if($this->getController() && ! $this->getControllerPath()){ |
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$this->logger->debug('Setting the file path for the controller [' . $this->getController() . ']'); |
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//if it is the module controller |
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if($this->getModule()){ |
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$this->controllerPath = Module::findControllerFullPath(ucfirst($this->getController()), $this->getModule()); |
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} |
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else{ |
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$this->controllerPath = APPS_CONTROLLER_PATH . ucfirst($this->getController()) . '.php'; |
|
326
|
|
|
} |
|
327
|
|
|
} |
|
328
|
|
|
$controller = ucfirst($this->getController()); |
|
329
|
|
|
$this->logger->info('The routing information are: module [' . $this->getModule() . '], controller [' . $controller . '], method [' . $this->getMethod() . '], args [' . stringfy_vars($this->args) . ']'); |
|
330
|
|
|
$classFilePath = $this->getControllerPath(); |
|
331
|
|
|
$this->logger->debug('Loading controller [' . $controller . '], the file path is [' . $classFilePath . ']...'); |
|
332
|
|
|
$benchmark->mark('ROUTING_PROCESS_END'); |
|
333
|
|
|
$e404 = false; |
|
334
|
|
|
if(file_exists($classFilePath)){ |
|
335
|
|
|
require_once $classFilePath; |
|
336
|
|
|
if(! class_exists($controller, false)){ |
|
337
|
|
|
$e404 = true; |
|
338
|
|
|
$this->logger->info('The controller file [' .$classFilePath. '] exists but does not contain the class [' . $controller . ']'); |
|
339
|
|
|
} |
|
340
|
|
|
else{ |
|
341
|
|
|
$controllerInstance = new $controller(); |
|
342
|
|
|
$controllerMethod = $this->getMethod(); |
|
343
|
|
|
if(! method_exists($controllerInstance, $controllerMethod)){ |
|
344
|
|
|
$e404 = true; |
|
345
|
|
|
$this->logger->info('The controller [' . $controller . '] exist but does not contain the method [' . $controllerMethod . ']'); |
|
346
|
|
|
} |
|
347
|
|
|
else{ |
|
348
|
|
|
$this->logger->info('Routing data is set correctly now GO!'); |
|
349
|
|
|
call_user_func_array(array($controllerInstance, $controllerMethod), $this->getArgs()); |
|
350
|
|
|
$obj = & get_instance(); |
|
351
|
|
|
//render the final page to user |
|
352
|
|
|
$this->logger->info('Render the final output to the browser'); |
|
353
|
|
|
$obj->response->renderFinalPage(); |
|
354
|
|
|
} |
|
355
|
|
|
} |
|
356
|
|
|
} |
|
357
|
|
|
else{ |
|
358
|
|
|
$this->logger->info('The controller file path [' . $classFilePath . '] does not exist'); |
|
359
|
|
|
$e404 = true; |
|
360
|
|
|
} |
|
361
|
|
|
if($e404){ |
|
362
|
|
|
$response =& class_loader('Response', 'classes'); |
|
363
|
|
|
$response->send404(); |
|
364
|
|
|
} |
|
365
|
|
|
} |
|
366
|
|
|
|
|
367
|
|
|
/** |
|
368
|
|
|
* Return the Log instance |
|
369
|
|
|
* @return Log |
|
370
|
|
|
*/ |
|
371
|
|
|
public function getLogger(){ |
|
372
|
|
|
return $this->logger; |
|
373
|
|
|
} |
|
374
|
|
|
|
|
375
|
|
|
/** |
|
376
|
|
|
* Set the log instance |
|
377
|
|
|
* @param Log $logger the log object |
|
378
|
|
|
* @return object |
|
379
|
|
|
*/ |
|
380
|
|
|
public function setLogger($logger){ |
|
381
|
|
|
$this->logger = $logger; |
|
382
|
|
|
return $this; |
|
383
|
|
|
} |
|
384
|
|
|
|
|
385
|
|
|
/** |
|
386
|
|
|
* Setting the route configuration using the configuration file and additional configuration from param |
|
387
|
|
|
* @param array $overwriteConfig the additional configuration to overwrite with the existing one |
|
388
|
|
|
* @param boolean $useConfigFile whether to use route configuration file |
|
389
|
|
|
* @return object |
|
390
|
|
|
*/ |
|
391
|
|
|
public function setRouteConfiguration(array $overwriteConfig = array(), $useConfigFile = true){ |
|
392
|
|
|
$route = array(); |
|
393
|
|
|
if ($useConfigFile && file_exists(CONFIG_PATH . 'routes.php')){ |
|
394
|
|
|
require_once CONFIG_PATH . 'routes.php'; |
|
395
|
|
|
} |
|
396
|
|
|
$route = array_merge($route, $overwriteConfig); |
|
397
|
|
|
$this->routes = $route; |
|
398
|
|
|
return $this; |
|
399
|
|
|
} |
|
400
|
|
|
|
|
401
|
|
|
/** |
|
402
|
|
|
* Set the route paramaters using the configuration |
|
403
|
|
|
*/ |
|
404
|
|
|
protected function setRouteParams(){ |
|
405
|
|
|
//adding route |
|
406
|
|
|
foreach($this->routes as $pattern => $callback){ |
|
407
|
|
|
$this->add($pattern, $callback); |
|
408
|
|
|
} |
|
409
|
|
|
|
|
410
|
|
|
//here use directly the variable $_SERVER |
|
411
|
|
|
$uri = isset($_SERVER['REQUEST_URI']) ? $_SERVER['REQUEST_URI'] : ''; |
|
412
|
|
|
$this->logger->debug('Check if URL suffix is enabled in the configuration'); |
|
413
|
|
|
//remove url suffix from the request URI |
|
414
|
|
|
$suffix = get_config('url_suffix'); |
|
415
|
|
|
if ($suffix) { |
|
416
|
|
|
$this->logger->info('URL suffix is enabled in the configuration, the value is [' . $suffix . ']' ); |
|
417
|
|
|
$uri = str_ireplace($suffix, '', $uri); |
|
418
|
|
|
} |
|
419
|
|
|
if (strpos($uri, '?') !== false){ |
|
420
|
|
|
$uri = substr($uri, 0, strpos($uri, '?')); |
|
421
|
|
|
} |
|
422
|
|
|
$uri = trim($uri, $this->uriTrim); |
|
423
|
|
|
$this->segments = explode('/', $uri); |
|
424
|
|
|
} |
|
425
|
|
|
|
|
426
|
|
|
/** |
|
427
|
|
|
* Set the Log instance using argument or create new instance |
|
428
|
|
|
* @param object $logger the Log instance if not null |
|
429
|
|
|
*/ |
|
430
|
|
|
protected function setLoggerFromParamOrCreateNewInstance(Log $logger = null){ |
|
431
|
|
|
if ($logger !== null){ |
|
432
|
|
|
$this->logger = $logger; |
|
433
|
|
|
} |
|
434
|
|
|
else{ |
|
435
|
|
|
$this->logger =& class_loader('Log', 'classes'); |
|
436
|
|
|
$this->logger->setLogger('Library::Router'); |
|
437
|
|
|
} |
|
438
|
|
|
} |
|
439
|
|
|
} |
|
440
|
|
|
|