<?php

/**

 *   http://btdev.net:1337/svn/test/Installer09_Beta

 *   Licence Info: GPL

 *   Copyright (C) 2010 BTDev Installer v.1

 *   A bittorrent tracker source based on TBDev.net/tbsource/bytemonsoon.

 *   Project Leaders: Mindless,putyn.

 **/

// This is the handler for captcha image requests

// The captcha ID is placed in the session, so session vars are required for this plug-in

session_start();



// -------------------- EDIT THESE ----------------- //

$images = array(

  'house'=> 'captchaImages/01.png',

  'key'=> 'captchaImages/04.png',

  'flag'=> 'captchaImages/06.png',

  'clock'=> 'captchaImages/15.png',

  'bug'=> 'captchaImages/16.png',

  'pen'=> 'captchaImages/19.png',

  'light bulb'=> 'captchaImages/21.png',

  'musical note'=> 'captchaImages/40.png',

  'heart'=> 'captchaImages/43.png',

  'world'=> 'captchaImages/99.png'

);

// ------------------- STOP EDITING ---------------- //



$_SESSION['simpleCaptchaAnswer'] = null;

$_SESSION['simpleCaptchaTimestamp'] = time();

$SALT = "o^Gj".$_SESSION['simpleCaptchaTimestamp']."7%8W";

$resp = array();



header("Content-Type: application/json");



if (!isset($images) || !is_array($images) || sizeof($images) < 3) {

  $resp['error'] = "There aren\'t enough images!";

  echo json_encode($resp);

  exit;

}



if (isset($_POST['numImages']) && strlen($_POST['numImages']) > 0) {

  $numImages = intval($_POST['numImages']);

} else if (isset($_GET['numImages']) && strlen($_GET['numImages']) > 0) {

  $numImages = intval($_GET['numImages']);

}

$numImages = ($numImages > 0)?$numImages:5;

$size = sizeof($images);

$num = min(array($size, $numImages));



$keys = array_keys($images);

$used = array();

mt_srand(((float) microtime() * 587) / 33);

for ($i=0; $i<$num; ++$i) {

  $r = rand(0, $size-1);

  while (array_search($keys[$r], $used) !== false) {

    $r = rand(0, $size-1);

  }

  array_push($used, $keys[$r]);

}

$selectText = $used[rand(0, $num-1)];

$_SESSION['simpleCaptchaAnswer'] = sha1($selectText . $SALT);



$resp['text'] = ''.$selectText;

$resp['images'] = array();



shuffle($used);

for ($i=0; $i<sizeof($used); ++$i) {

  array_push($resp['images'], array(

    'hash'=>sha1($used[$i] . $SALT),

    'file'=>$images[$used[$i]]

  ));

}

echo json_encode($resp);

exit;

?>