classes/profilevisibility.php

   1 <?php
   2 /***************************************************************************
   3  *  Copyright (C) 2003-2011 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 class ProfileVisibility
  23 {
  24     static private $v_values = array(self::VIS_PUBLIC  => array(self::VIS_PUBLIC),
  25                                      self::VIS_AX      => array(self::VIS_AX, self::VIS_PUBLIC),
  26                                      self::VIS_PRIVATE => array(self::VIS_PRIVATE, self::VIS_AX, self::VIS_PUBLIC));
  27
  28     const VIS_PUBLIC  = 'public';
  29     const VIS_AX      = 'ax';
  30     const VIS_PRIVATE = 'private';
  31
  32     private $level;
  33
  34     public function __construct($level = null, $force = false)
  35     {
  36         if ($force) {
  37             $this->forceLevel($level);
  38         } else {
  39             $this->setLevel($level);
  40         }
  41     }
  42
  43     public function setLevel($level = self::VIS_PUBLIC)
  44     {
  45         if ($level != null && $level != self::VIS_PRIVATE && $level != self::VIS_AX && $level != self::VIS_PUBLIC) {
  46             Platal::page()->kill("Invalid visibility: " . $level);
  47         }
  48
  49         // Unlogged or not allowed to view directory_ax or requesting public
  50         // => public view
  51         if (!S::logged() || !S::user()->checkPerms('directory_ax') || $level == self::VIS_PUBLIC) {
  52             $level = self::VIS_PUBLIC;
  53         // Not allowed to view directory_private or requesting ax
  54         } else if (!S::user()->checkPerms('directory_private') || $level == self::VIS_AX) {
  55             $level = self::VIS_AX;
  56         } else {
  57             $level = self::VIS_PRIVATE;
  58         }
  59
  60         if ($this->level == null || $this->level == self::VIS_PRIVATE) {
  61             $this->level = $level;
  62         } else if ($this->level == self::VIS_AX && $level == self::VIS_PRIVATE) {
  63             return;
  64         } else {
  65             $this->level = self::VIS_PUBLIC;
  66         }
  67     }
  68
  69     public function forceLevel($level)
  70     {
  71         if ($level != self::VIS_PRIVATE && $level != self::VIS_AX && $level != self::VIS_PUBLIC) {
  72             Platal::page()->kill('Invalid visibility: ' . $level);
  73         }
  74
  75         $this->level = $level;
  76     }
  77
  78     public function level()
  79     {
  80         if ($this->level == null) {
  81             return self::VIS_PUBLIC;
  82         } else {
  83             return $this->level;
  84         }
  85     }
  86
  87     public function levels()
  88     {
  89         return self::$v_values[$this->level()];
  90     }
  91
  92     public function isVisible($visibility)
  93     {
  94         return in_array($visibility, $this->levels());
  95     }
  96
  97     static public function comparePublicity($a, $b)
  98     {
  99         $a_pub = new ProfileVisibility($a['pub'], true);
 100         $b_pub = new ProfileVisibility($b['pub'], true);
 101
 102         return !$a_pub->isVisible($b_pub->level());
 103     }
 104 }
 105
 106
 107 // vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8:
 108 ?>