lib/system/RequestHandler.class.php

   1 <?php
   2 namespace dns\system;
   3 use dns\system\cache\builder\ControllerCacheBuilder;
   4 use dns\system\route\Literal;
   5 use dns\system\route\Regex;
   6 use dns\system\route\Request;
   7 use dns\system\route\Segment;
   8 use Zend\Mvc\Router\SimpleRouteStack;
   9 use Zend\Mvc\Router\Http\RouteMatch;
  10
  11 /**
  12  * @author      Jan Altensen (Stricted)
  13  * @license     GNU Lesser General Public License <http://opensource.org/licenses/lgpl-license.php>
  14  * @copyright   2013-2016 Jan Altensen (Stricted)
  15  */
  16 class RequestHandler extends SingletonFactory {
  17         protected $router = null;
  18         protected $apiModule = false;
  19
  20         /**
  21          * init RequestHandler
  22          */
  23         protected function init () {
  24                 $this->router = new SimpleRouteStack();
  25                 if (DNS::getSession()->username !== null) {
  26                         DNS::getTPL()->assign(array("username" => DNS::getSession()->username));
  27                 }
  28                 else {
  29                         DNS::getTPL()->assign(array("username" => ''));
  30                 }
  31         }
  32
  33         /**
  34          * set the default rules
  35          *
  36          * @param       string  $module
  37          **/
  38         public function setRoutes($module='') {
  39                 if ($module == "api") {
  40                         $this->apiModule = true;
  41                 }
  42
  43                 /* load the controllers from cache and build routes */
  44                 $controllers = ControllerCacheBuilder::getInstance()->getData(array('module' => $module));
  45                 $routes = [];
  46
  47                 foreach ($controllers as $name => $data) {
  48                         $routes[$name] = Segment::factory([ 'route' => $name.'[/:id[-:title]]', 'constraints' => [ 'id' => '[0-9]+', 'title' => '[a-zA-Z0-9_.-/]+' ], 'defaults' => [ 'controller' => $data ] ]);
  49                 }
  50
  51                 $this->router->setRoutes($routes);
  52         }
  53
  54         /**
  55          * @see \Zend\Mvc\Router\SimpleRouteStack::addRoute()
  56          *
  57      * @param  string  $name
  58      * @param  mixed   $route
  59          */
  60         public function addRoute ($name, $route) {
  61                 $this->router->addRoute($name, $route);
  62         }
  63
  64         /**
  65          * @see \Zend\Mvc\Router\SimpleRouteStack::addRoutes()
  66          *
  67      * @param   array|Traversable       $routes
  68          */
  69         public function addRoutes ($routes) {
  70                 $this->router->addRoutes($routes);
  71         }
  72
  73     /**
  74      * Get the added routes
  75      *
  76      * @return  Traversable list of all routes
  77      */
  78         public function getRoutes() {
  79                 return $this->router->getRoutes();
  80         }
  81
  82         /**
  83          * handle the request
  84          */
  85         public function handle () {
  86                 $match = $this->router->match(new Request());
  87                 if ($match !== null) {
  88                         $this->registerRouteData($match);
  89
  90                         $className = $match->getParam("controller");
  91
  92                         if (!User::isLoggedIn() && $this->apiModule == false && $className != 'dns\page\LoginPage' && $className != 'dns\page\ApiPage') {
  93                                 DNS::getTPL()->display('login.tpl');
  94                                 exit;
  95                         }
  96
  97                         if (defined('OFFLINE') && OFFLINE) {
  98                                 $admin = User::isAdmin();
  99                                 $available = false;
 100
 101                                 if (defined($className . '::AVAILABLE_DURING_OFFLINE_MODE') && constant($className . '::AVAILABLE_DURING_OFFLINE_MODE')) {
 102                                         $available = true;
 103                                 }
 104
 105                                 if (!$admin && !$available) {
 106                                         @header('HTTP/1.1 503 Service Unavailable');
 107                                         DNS::getTPL()->display('offline.tpl');
 108                                         exit;
 109                                 }
 110                         }
 111
 112                         try {
 113                                 new $className();
 114                         }
 115                         catch (\Exception $e) {
 116                                 if ($e->getCode() == 404) {
 117                                         @header('HTTP/1.0 404 Not Found');
 118                                 }
 119                                 else if ($e->getCode() == 403) {
 120                                         @header('HTTP/1.0 403 Forbidden');
 121                                 }
 122
 123                                 // show error page
 124                                 DNS::getTPL()->assign(array("activeMenuItem" => '', "error" => $e->getMessage()));
 125                                 DNS::getTPL()->display('error.tpl');
 126                                 exit;
 127                         }
 128                 }
 129                 else {
 130                         @header('HTTP/1.0 404 Not Found');
 131                         DNS::getTPL()->assign(array("activeMenuItem" => '', "error" => 'The link you are trying to reach is no longer available or invalid.'));
 132                         DNS::getTPL()->display('error.tpl');
 133                         exit;
 134                 }
 135         }
 136
 137         /**
 138         * Registers route data within $_GET and $_REQUEST.
 139         */
 140         protected function registerRouteData(RouteMatch $route) {
 141                 foreach ($route->getParams() as $key => $value) {
 142                         $_GET[$key] = $value;
 143                         $_REQUEST[$key] = $value;
 144                 }
 145         }
 146 }