includes/captcha.php
author Dan
Fri, 15 May 2009 15:56:10 -0400
changeset 985 4ecf46e5eeab
parent 801 eb8b23f11744
child 1025 30956e5092ff
permissions -rw-r--r--
Fixed undefined indices for user_extra in various places
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
1
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
     1
<?php
166
d53cc29308f4 Rebrand as 1.1.1; everything should now be bumped to "unstable" status
Dan
parents: 142
diff changeset
     2
1
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
     3
/*
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
     4
 * Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between
801
eb8b23f11744 Two big commits in one day I know, but redid password storage to use HMAC-SHA1. Consolidated much AES processing to three core methods in session that should handle everything automagically. Installation works; upgrades should. Rebranded as 1.1.6.
Dan
parents: 685
diff changeset
     5
 * Version 1.1.6 (Caoineag beta 1)
536
218a627eb53e Rebrand as 1.1.4 (Caoineag alpha 4)
Dan
parents: 507
diff changeset
     6
 * Copyright (C) 2006-2008 Dan Fuhry
1
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
     7
 * captcha.php - visual confirmation system used during registration
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
     8
 *
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
     9
 * This program is Free Software; you can redistribute and/or modify it under the terms of the GNU General Public License
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    10
 * as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    11
 *
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    12
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    13
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
401
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    14
 */
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    15
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    16
/**
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    17
 * The base class for CAPTCHA engines.
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    18
 * @package Enano
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    19
 * @subpackage User management
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    20
 * @copyright 2008 Dan Fuhry
1
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    21
 */
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    22
 
401
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    23
class captcha_base
1
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    24
{
401
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    25
  
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    26
  /**
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    27
   * Our session ID
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    28
   * @var string
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    29
   */
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    30
  
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    31
  private $session_id;
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    32
  
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    33
  /**
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    34
   * Our saved session data
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    35
   * @var array
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    36
   */
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    37
  
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    38
  private $session_data;
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    39
  
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    40
  /**
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    41
   * The confirmation code we're generating.
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    42
   * @var string
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    43
   */
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    44
  
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    45
  private $code = '';
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    46
  
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    47
  /**
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    48
   * Numerical ID (primary key) for our session
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    49
   * @var int
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    50
   */
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    51
  
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    52
  private $id = 0;
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    53
  
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    54
  /**
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    55
   * Constructor.
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    56
   * @param string Session ID for captcha
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    57
   */
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    58
  
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    59
  function __construct($session_id, $row = false)
1
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    60
  {
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    61
    global $db, $session, $paths, $template, $plugins; // Common objects
401
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    62
    if ( !preg_match('/^[a-f0-9]{32}([a-z0-9]{8})?$/', $session_id) )
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    63
    {
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    64
      throw new Exception('Invalid session ID');
1
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    65
    }
401
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    66
    $this->session_id = $session_id;
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    67
    // If we weren't supplied with session info, retreive it
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    68
    if ( !is_array($row) )
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    69
    {
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    70
      $q = $db->sql_query('SELECT code_id, code, session_data FROM ' . table_prefix . "captcha WHERE session_id = '$session_id';");
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    71
      if ( !$q )
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    72
        $db->_die();
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    73
      $row = $db->fetchrow();
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    74
      $row['code_id'] = intval($row['code_id']);
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    75
      $db->free_result();
1
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    76
    }
401
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    77
    if ( !isset($row['code']) || !isset($row['session_data']) || !is_int(@$row['code_id']) )
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    78
    {
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    79
      throw new Exception('Row doesn\'t contain what we need (code and session_data)');
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    80
    }
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    81
    $this->session_data = ( is_array($x = @unserialize($row['session_data'])) ) ? $x : array();
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    82
    $this->code = $row['code'];
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    83
    $this->id = $row['code_id'];
1
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    84
    
401
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    85
    // run any custom init functions
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    86
    if ( function_exists(array($this, 'construct_hook')) )
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    87
      $this->construct_hook();
1
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    88
  }
401
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    89
  
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    90
  /**
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    91
   * Retrieves a key from the session data set
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    92
   * @param int|string Key to fetch
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    93
   * @param mixed Default value for key
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    94
   * @return mixed
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    95
   */
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    96
   
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    97
  function session_fetch($key, $default = false)
1
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
    98
  {
401
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
    99
    return ( isset($this->session_data[$key]) ) ? $this->session_data[$key] : $default;
1
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   100
  }
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   101
  
401
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   102
  /**
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   103
   * Stores a value in the session's data set. Change must be committed using $captcha->session_commit()
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   104
   * @param int|string Name of key
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   105
   * @param mixed Value - can be an array, string, int, or double, but probably not objects :-)
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   106
   */
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   107
  
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   108
  function session_store($key, $value)
1
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   109
  {
401
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   110
    $this->session_data[$key] = $value;
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   111
  }
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   112
  
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   113
  /**
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   114
   * Commits changes to the session data set to the database.
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   115
   */
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   116
  
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   117
  function session_commit()
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   118
  {
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   119
    global $db, $session, $paths, $template, $plugins; // Common objects
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   120
    $session_data = serialize($this->session_data);
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   121
    $session_data = $db->escape($session_data);
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   122
    $code = $db->escape($this->code);
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   123
    
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   124
    $q = $db->sql_query('UPDATE ' . table_prefix . "captcha SET code = '$code', session_data = '$session_data' WHERE code_id = {$this->id};");
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   125
    if ( !$q )
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   126
      $db->_die();
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   127
  }
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   128
  
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   129
  /**
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   130
   * Changes the confirmation code
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   131
   * @param string New string
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   132
   */
1
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   133
  
401
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   134
  function set_code($code)
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   135
  {
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   136
    if ( !is_string($code) )
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   137
      return false;
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   138
    
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   139
    $this->code = $code;
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   140
  }
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   141
  
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   142
  /**
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   143
   * Returns the confirmation code
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   144
   * @return string
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   145
   */
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   146
  
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   147
  function get_code()
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   148
  {
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   149
    return $this->code;
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   150
  }
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   151
  
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   152
}
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   153
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   154
/**
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   155
 * Returns a new captcha object
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   156
 * @param string Session ID
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   157
 * @param string Optional - engine to load
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   158
 * @param array Optional row to send to the captcha engine
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   159
 */
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   160
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   161
function captcha_object($session_id, $engine = false, $row = false)
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   162
{
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   163
  static $singletons = array();
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   164
  if ( !$engine )
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   165
  {
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   166
    $engine = getConfig('captcha_engine');
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   167
    if ( !$engine )
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   168
    {
558
fd082123f2f4 Fixed some GD detection bugs with freecap
Dan
parents: 536
diff changeset
   169
      $engine = 'freecap';
1
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   170
    }
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   171
  }
558
fd082123f2f4 Fixed some GD detection bugs with freecap
Dan
parents: 536
diff changeset
   172
  if( !extension_loaded("gd") || !function_exists("gd_info") || !function_exists('imagettftext') || !function_exists('imagepng') || !function_exists('imagecreatefromjpeg') )
1
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   173
  {
401
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   174
    $engine = 'failsafe';
1
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   175
  }
401
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   176
  if ( !class_exists("captcha_engine_$engine") )
1
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   177
  {
401
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   178
    require_once ENANO_ROOT . "/includes/captcha/engine_{$engine}.php";
1
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   179
  }
401
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   180
  if ( !class_exists("captcha_engine_$engine") )
1
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   181
  {
401
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   182
    throw new Exception("Expected but couldn't find class for captcha engine: captcha_engine_$engine");
1
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   183
  }
401
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   184
  $class = "captcha_engine_$engine";
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents: 387
diff changeset
   185
  return new $class($session_id, $row);
1
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   186
}
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   187
fe660c52c48f Adding /includes
dan@scribus.fuhry.local.fuhry.local
parents:
diff changeset
   188
?>