includes/captcha/engine_default.php
author Dan
Sun, 20 Sep 2009 02:51:54 -0400
changeset 1115 b3c249d06990
parent 1081 745200a9cc2a
child 1227 bdac73ed481e
permissions -rw-r--r--
Functions: fixed HTML sanitizer to properly preprocess <code> one-liners
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
401
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
     1
<?php
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
     2
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
     3
/*
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
     4
 * Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between
1081
745200a9cc2a Fixed some upgrade bugs; added support for choosing one's own date/time formats; rebrand as 1.1.7
Dan
parents: 801
diff changeset
     5
 * Copyright (C) 2006-2009 Dan Fuhry
401
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
     6
 * captcha.php - visual confirmation system used during registration
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
     7
 *
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
     8
 * This program is Free Software; you can redistribute and/or modify it under the terms of the GNU General Public License
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
     9
 * as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    10
 *
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    11
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    12
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    13
 *
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    14
 * This file contains code written by Paul Sohier (www.paulscripts.nl). The CAPTCHA code was ported from the phpBB Better
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    15
 * Captcha mod, and has been released under the GPLv2 by the original author.
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    16
 */
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    17
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    18
/**
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    19
 * The default CAPTCHA engine. Generates medium-strength captchas with very good performance.
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    20
 * @package Enano
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    21
 * @subpackage User management
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    22
 * @copyright 2007-2008 Dan Fuhry
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    23
 * @copyright Paul Sohier
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    24
 */
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    25
 
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    26
class captcha_engine_default extends captcha_base
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    27
{
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    28
  function make_image()
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
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:
diff changeset
    30
    $code =& strtoupper($this->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:
diff changeset
    31
    
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    32
    /**
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    33
      * The next part is orginnaly written by ted from mastercode.nl and modified for use in Enano.
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    34
      **/
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    35
    header("content-type:image/png");
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    36
    header('Cache-control: no-cache, no-store');
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    37
    $breedte = 320;
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    38
    $hoogte = 60;
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    39
    $img = imagecreatetruecolor($breedte,$hoogte);
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    40
    $achtergrond = imagecolorallocate($img, $this->color("bg"), $this->color("bg"), $this->color("bg"));
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    41
    
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    42
    imagefilledrectangle($img, 0, 0, $breedte-1, $hoogte-1, $achtergrond);
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    43
    for($g = 0;$g < 30; $g++)
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
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:
diff changeset
    45
      $t = $this->dss_rand();
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    46
      $t = $t[0];
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
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:
diff changeset
    48
      $ypos = rand(0,$hoogte);
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:
diff changeset
    49
      $xpos = rand(0,$breedte);
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:
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:
diff changeset
    51
      $kleur = imagecolorallocate($img, $this->color("bgtekst"), $this->color("bgtekst"), $this->color("bgtekst"));
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    52
          
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    53
      imagettftext($img, $this->size(), $this->move(), $xpos, $ypos, $kleur, $this->font(), $t);
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
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:
diff changeset
    55
    $stukje = $breedte / (strlen($code) + 3);
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:
diff changeset
    56
    
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    57
    for($j = 0;$j < strlen($code); $j++)
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
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:
diff changeset
    59
      
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:
diff changeset
    60
      
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:
diff changeset
    61
      $tek = $code[$j];
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:
diff changeset
    62
      $ypos = rand(33,43);
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    63
      $xpos = $stukje * ($j+1);
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:
diff changeset
    64
          
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:
diff changeset
    65
      $kleur2 = imagecolorallocate($img, $this->color("tekst"), $this->color("tekst"), $this->color("tekst"));
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    66
      
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    67
      imagettftext($img, $this->size(), $this->move(), $xpos, $ypos, $kleur2, $this->font() , $tek);
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    68
    }
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:
diff changeset
    69
      
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    70
    imagepng($img);
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    71
  }
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    72
  
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    73
  /**
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    74
    * Some functions :)
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    75
    * Also orginally written by mastercode.nl
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    76
    **/
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    77
  /**
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    78
    * Function to create a random color
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:
diff changeset
    79
    * @param $type string Mode for the color
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    80
    * @return int
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    81
    **/
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    82
  function color($type)
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    83
  {
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    84
    switch($type)
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    85
    {
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    86
      case "bg": 
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:
diff changeset
    87
        $kleur = rand(224,255); 
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    88
      break;
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    89
      case "tekst": 
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    90
        $kleur = rand(0,127); 
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    91
      break;
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    92
      case "bgtekst": 
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    93
        $kleur = rand(200,224); 
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    94
      break;
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    95
      default: 
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    96
        $kleur = rand(0,255); 
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    97
      break;
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    98
    }
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
    99
    return $kleur;
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   100
  }
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   101
  /**
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   102
    * Function to ranom the size
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   103
    * @return int
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   104
    **/
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   105
  function size()
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
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:
diff changeset
   107
    $grootte = rand(14,30);
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   108
    return $grootte;
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   109
  }
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   110
  /**
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   111
    * Function to random the posistion
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   112
    * @return int
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   113
    **/
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   114
  function move()
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
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:
diff changeset
   116
    $draai = rand(-25,25);
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   117
    return $draai;
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
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:
diff changeset
   119
  
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   120
  /**
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   121
    * Function to return a ttf file from fonts map
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   122
    * @return string
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   123
    **/
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   124
  function font()
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   125
  {
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:
diff changeset
   126
    $f = @opendir(ENANO_ROOT . '/includes/captcha/fonts/');
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   127
    if(!$f) die('Can\'t open includes/captcha/fonts/ for reading');
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   128
    $ar = array();
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   129
    while(($file = @readdir($f)) !== false)
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   130
    {
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   131
      if(!in_array($file, array('.','..')) && strstr($file, '.ttf'))
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   132
      {
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   133
        $ar[] = $file;
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   134
      }
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   135
    }
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   136
    if(count($ar))
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   137
    {
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   138
      shuffle($ar);
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:
diff changeset
   139
      $i = rand(0,(count($ar) - 1));
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:
diff changeset
   140
      return ENANO_ROOT . '/includes/captcha/fonts/' . $ar[$i];
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   141
    }
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   142
  }
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   143
  function dss_rand()
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   144
  {
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:
diff changeset
   145
    $val = microtime() .  mt_rand();
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   146
    $val = md5($val . 'a');
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   147
    return substr($val, 4, 16);
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   148
  }
6ae6e387a0e3 Implemented a new CAPTCHA API; the frontend ($session->{make,get}_captcha) is API-compatible but the backend (the captcha class) is deprecated.
Dan
parents:
diff changeset
   149
}