samples/sessions/sessions.php

   1 <?php
   2 /*
   3   +---------------------------------------------------------------------------------+
   4   | Copyright (c) 2010 ActiveMongo                                                  |
   5   +---------------------------------------------------------------------------------+
   6   | Redistribution and use in source and binary forms, with or without              |
   7   | modification, are permitted provided that the following conditions are met:     |
   8   | 1. Redistributions of source code must retain the above copyright               |
   9   |    notice, this list of conditions and the following disclaimer.                |
  10   |                                                                                 |
  11   | 2. Redistributions in binary form must reproduce the above copyright            |
  12   |    notice, this list of conditions and the following disclaimer in the          |
  13   |    documentation and/or other materials provided with the distribution.         |
  14   |                                                                                 |
  15   | 3. All advertising materials mentioning features or use of this software        |
  16   |    must display the following acknowledgement:                                  |
  17   |    This product includes software developed by César D. Rodas.                  |
  18   |                                                                                 |
  19   | 4. Neither the name of the César D. Rodas nor the                               |
  20   |    names of its contributors may be used to endorse or promote products         |
  21   |    derived from this software without specific prior written permission.        |
  22   |                                                                                 |
  23   | THIS SOFTWARE IS PROVIDED BY CÉSAR D. RODAS ''AS IS'' AND ANY                   |
  24   | EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED       |
  25   | WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE          |
  26   | DISCLAIMED. IN NO EVENT SHALL CÉSAR D. RODAS BE LIABLE FOR ANY                  |
  27   | DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES      |
  28   | (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;    |
  29   | LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND     |
  30   | ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT      |
  31   | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS   |
  32   | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE                     |
  33   +---------------------------------------------------------------------------------+
  34   | Authors: César Rodas <crodas@php.net>                                           |
  35   +---------------------------------------------------------------------------------+
  36 */
  37
  38 class MongoSession extends ActiveMongo
  39 {
  40     protected static $session;
  41
  42     public $data;
  43     public $sid;
  44     public $valid;
  45     public $ts;
  46
  47     function getCollectionName()
  48     {
  49         return 'session';
  50     }
  51
  52     function setup()
  53     {
  54         $this->addIndex(array("sid" => 1, "valid" => 1));
  55         $this->addIndex(array("ts" => 1));
  56     }
  57
  58     function before_create(&$document)
  59     {
  60         $document['ts'] = new MongoDate();
  61     }
  62
  63     final public static function init()
  64     {
  65         $class = get_called_class();
  66         session_set_save_handler(
  67             array($class, "Open"),
  68             array($class, "Close"),
  69             array($class, "Read"),
  70             array($class, "Write"),
  71             array($class, "Destroy"),
  72             array($class, "GC")
  73         );
  74         self::$session = new $class;
  75     }
  76
  77     final public static function Open($path, $name)
  78     {
  79         return TRUE;
  80     }
  81
  82     final public static function Close()
  83     {
  84         self::$session = null;
  85         return TRUE;
  86     }
  87
  88     final public static function Read($id)
  89     {
  90         $session = self::$session;
  91         $session->where('sid', $id)->where('valid', TRUE);
  92         if ($session->count() == 0) {
  93             $session->sid   = $id;
  94             $session->valid = TRUE;
  95             $session->save();
  96         }
  97         return $session->data;
  98     }
  99
 100     final public static function Write($id, $ses_data)
 101     {
 102         $session = self::$session;
 103         $session->data = $ses_data;
 104         $session->ts   = new MongoDate();
 105         $session->save(FALSE);
 106
 107         return TRUE;
 108     }
 109
 110     final public static function Destroy($id)
 111     {
 112         $session = self::$session;
 113         $session->delete();
 114     }
 115
 116     final public static function GC($max_time)
 117     {
 118         $class    = get_called_name();
 119         $sessions = new $class;
 120         $session->delete_old_sessions($max_time);
 121     }
 122
 123     function delete_old_sessions($max_time)
 124     {
 125         $filter = array(
 126             'ts' => array(
 127                 '$lt' => new MongoDate(time()-$max_time),
 128             )
 129         );
 130         $this->_getCollection->remove($filter);
 131     }
 132 }