classes/Platal.php

   1 <?php
   2 /***************************************************************************
   3  *  Copyright (C) 2003-2006 Polytechnique.org                              *
   4  *  http://opensource.polytechnique.org/                                   *
   5  *                                                                         *
   6  *  This program is free software; you can redistribute it and/or modify   *
   7  *  it under the terms of the GNU General Public License as published by   *
   8  *  the Free Software Foundation; either version 2 of the License, or      *
   9  *  (at your option) any later version.                                    *
  10  *                                                                         *
  11  *  This program is distributed in the hope that it will be useful,        *
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of         *
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
  14  *  GNU General Public License for more details.                           *
  15  *                                                                         *
  16  *  You should have received a copy of the GNU General Public License      *
  17  *  along with this program; if not, write to the Free Software            *
  18  *  Foundation, Inc.,                                                      *
  19  *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA                *
  20  ***************************************************************************/
  21
  22 define('PL_OK', 0);
  23 define('PL_NEEDLOGIN', 1);
  24 define('PL_FORBIDDEN', 403);
  25 define('PL_NOT_FOUND', 404);
  26
  27 class Platal
  28 {
  29     var $__mods;
  30     var $__hooks;
  31
  32     var $path;
  33     var $auth;
  34
  35     function Platal()
  36     {
  37         $this->path = trim(Get::_get('p', null), '/');
  38
  39         $this->__mods  = array();
  40         $this->__hooks = array();
  41
  42         foreach (glob(dirname(__FILE__).'/../modules/*.php') as $module) {
  43             $module = basename($module, '.php');
  44             $m =& PLModule::factory($this, $module);
  45             $this->__mods[$module] =& $m;
  46             $this->__hooks += $m->handlers();
  47         }
  48
  49         krsort($this->__hooks);
  50     }
  51
  52     function load_class($cls)
  53     {
  54         require_once dirname(__FILE__).'/../classes/'.$cls.'.php';
  55     }
  56
  57     function call_hook(&$page)
  58     {
  59         $p = $this->path;
  60
  61         while ($p) {
  62             if (array_key_exists($p, $this->__hooks))
  63                 break;
  64
  65             $p = substr($p, 0, strrpos($p, '/'));
  66         }
  67         if (empty($this->__hooks[$p])) {
  68             return PL_NOT_FOUND;
  69         }
  70
  71         $hook = $this->__hooks[$p];
  72
  73         if (!is_callable($hook['hook'])) {
  74             return PL_NOT_FOUND;
  75         }
  76
  77         $args = explode('/', substr($this->path, strlen($p) + 1));
  78         if ($args[0] != '') {
  79             array_unshift($args, &$page);
  80         } else {
  81             $args = array(&$page);
  82         }
  83
  84         if ($hook['auth'] > Session::get('auth', AUTH_PUBLIC)) {
  85             $_SESSION['session']->doAuth($page);
  86         }
  87         return call_user_func_array($hook['hook'], $args);
  88     }
  89
  90     function run()
  91     {
  92         global $page;
  93
  94         new_skinned_page('index.tpl', AUTH_PUBLIC);
  95
  96         if (empty($this->path)) {
  97             $page->run();
  98         }
  99
 100         switch ($this->call_hook($page)) {
 101           case PL_FORBIDDEN:
 102             $this->__mods['core']->handler_403($page);
 103             break;
 104
 105           case PL_NOT_FOUND:
 106             $this->__mods['core']->handler_404($page);
 107             break;
 108         }
 109         $page->run();
 110     }
 111 }
 112
 113 ?>