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<?php
/**
* @package Gallery WD
* @author Web-Dorado
* @copyright (C) 2014 Web-Dorado. All rights reserved.
* @license GNU/GPLv3 http://www.gnu.org/licenses/gpl-3.0.html
**/
defined('_JEXEC') or die('Restricted access');
// import Joomla modelitem library
jimport('joomla.application.component.modelitem');
class gallery_wdModelcaptcha extends JModelLegacy
{
public function bwg_captcha() {
$i = JRequest::getVar("i");
$r2 = (int)JRequest::getVar("r2",0);
$rrr = (int)JRequest::getVar("rrr",0);
$randNum = 0 + $r2 + $rrr;
$digit = (int)JRequest::getVar("digit",0);
$cap_width = $digit * 10 + 15;
$cap_height = 26;
$cap_quality = 100;
$cap_length_min = $digit;
$cap_length_max = $digit;
$cap_digital = 1;
$cap_latin_char = 1;
function code_generic($_length, $_digital = 1, $_latin_char = 1) {
$dig = array(0, 1, 2, 3, 4, 5, 6, 7, 8, 9);
$lat = array('a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z');
$main = array();
if ($_digital) {
$main = array_merge($main, $dig);
}
if ($_latin_char) {
$main = array_merge($main, $lat);
}
shuffle($main);
$pass = substr(implode('', $main), 0, $_length);
return $pass;
}
$l = rand($cap_length_min, $cap_length_max);
$code = code_generic($l, $cap_digital, $cap_latin_char);
@session_start();
$_SESSION['bwg_captcha_code'] = $code;
$canvas = imagecreatetruecolor($cap_width, $cap_height);
$c = imagecolorallocate($canvas, rand(150, 255), rand(150, 255), rand(150, 255));
imagefilledrectangle($canvas, 0, 0, $cap_width, $cap_height, $c);
$count = strlen($code);
$color_text = imagecolorallocate($canvas, 0, 0, 0);
for ($it = 0; $it < $count; $it++) {
$letter = $code[$it];
imagestring($canvas, 6, (10 * $it + 10), $cap_height / 4, $letter, $color_text);
}
for ($c = 0; $c < 150; $c++) {
$x = rand(0, $cap_width - 1);
$y = rand(0, 29);
$col = '0x' . rand(0, 9) . '0' . rand(0, 9) . '0' . rand(0, 9) . '0';
imagesetpixel($canvas, $x, $y, $col);
}
header('Expires: Mon, 26 Jul 1997 05:00:00 GMT');
header('Cache-Control: no-store, no-cache, must-revalidate');
header('Cache-Control: post-check=0, pre-check=0', FALSE);
header('Pragma: no-cache');
header('Content-Type: image/jpeg');
imagejpeg($canvas, NULL, $cap_quality);
die('');
}
}