aboutsummaryrefslogtreecommitdiffstats
path: root/include/functions_cookie.inc.php
blob: f4b1a7533e42e910505d30de7c97a6abc738b3ff (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
<?php
// +-----------------------------------------------------------------------+
// | PhpWebGallery - a PHP based picture gallery                           |
// | Copyright (C) 2002-2003 Pierrick LE GALL - pierrick@phpwebgallery.net |
// | Copyright (C) 2003-2007 PhpWebGallery Team - http://phpwebgallery.net |
// +-----------------------------------------------------------------------+
// | file          : $Id$
// | last update   : $Date$
// | last modifier : $Author$
// | revision      : $Revision$
// +-----------------------------------------------------------------------+
// | This program is free software; you can redistribute it and/or modify  |
// | it under the terms of the GNU General Public License as published by  |
// | the Free Software Foundation                                          |
// |                                                                       |
// | This program is distributed in the hope that it will be useful, but   |
// | WITHOUT ANY WARRANTY; without even the implied warranty of            |
// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      |
// | General Public License for more details.                              |
// |                                                                       |
// | You should have received a copy of the GNU General Public License     |
// | along with this program; if not, write to the Free Software           |
// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
// | USA.                                                                  |
// +-----------------------------------------------------------------------+

// cookie_path returns the path to use for the PhpWebGallery cookie.
// If PhpWebGallery is installed on :
// http://domain.org/meeting/gallery/category.php
// cookie_path will return : "/meeting/gallery"
function cookie_path()
{
  if ( isset($_SERVER['REDIRECT_SCRIPT_NAME']) and
       !empty($_SERVER['REDIRECT_SCRIPT_NAME']) )
  {
    $scr = $_SERVER['REDIRECT_SCRIPT_NAME'];
  }
  else if ( isset($_SERVER['REDIRECT_URL']) )
  {
    // mod_rewrite is activated for upper level directories. we must set the
    // cookie to the path shown in the browser otherwise it will be discarded.
    $scr = $_SERVER['REDIRECT_URL'];
  }
  else
  {
    $scr = $_SERVER['SCRIPT_NAME'];
  }

  $scr = substr($scr,0,strrpos( $scr,'/'));

  // add a trailing '/' if needed
  $scr .= ($scr{strlen($scr)-1} == '/') ? '' : '/';
  
  if ( substr(PHPWG_ROOT_PATH,0,3)=='../')
  { // this is maybe a plugin inside pwg directory
    // TODO - what if it is an external script outside PWG ?
    $scr = $scr.PHPWG_ROOT_PATH;
    while (1)
    {
      $new = preg_replace('#[^/]+/\.\.(/|$)#', '', $scr);
      if ($new==$scr)
      {
        break;
      }
      $scr=$new;
    }
  }
  return $scr;
}

/**
 * persistently stores a variable in pwg cookie
 * @return boolean true on success
 * @see pwg_get_cookie_var
 */
function pwg_set_cookie_var($var, $value)
{
  $_COOKIE['pwg_'.$var] = $value;
  return
    setcookie('pwg_'.$var, $value, 
      strtotime('+10 years'), cookie_path());
}

/**
 * retrieves the value of a persistent variable in pwg cookie
 * @return mixed
 * @see pwg_set_cookie_var
 */
function pwg_get_cookie_var($var, $default = null)
{
  if (isset($_COOKIE['pwg_'.$var]))
  {
    return $_COOKIE['pwg_'.$var];
  }
  else
  {
    return $default;
  }
}

?>