public function __construct($type = 1, $size = 6)
{
Oraculum_Request::init_sess();
if (is_null(Oraculum_Request::sess("captcha"))) {
if ($type == 3) {
$letters = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
$max = 61;
} elseif ($type == 2) {
$letters = 'abcdefghijklmnopqrstuvwxyz0123456789';
$max = 35;
} else {
$letters = '0123456789';
$max = 9;
}
$string = NULL;
for ($i = 0; $i < $size; $i++) {
$string .= $letters[mt_rand(0, $max)];
}
Oraculum_Request::setsess("captcha", $string);
} else {
$string = Oraculum_Request::sess("captcha");
}
$img = imagecreate(10 * $size, 25);
$backcolor = imagecolorallocate($img, 255, 255, 255);
$textcolor = imagecolorallocate($img, 00, 00, 00);
imagefill($img, 0, 0, $backcolor);
imagestring($img, 10, 0, 5, $string, $textcolor);
header("Content-type: image/jpeg");
imagejpeg($img);
}
public function __construct($type = 1, $string = null)
{
if (is_null(Oraculum_Request::sess("captcha"))) {
if ($type == 2 || $type == 3) {
$aux = $string . time();
$aux = md5(base64_encode(str_rot13($aux)));
$aux = str_rot13(base64_encode(str_rot13($aux)));
if ($type == 2) {
$aux = strtolower($aux);
}
$string = substr($aux, 0, 6);
} else {
$string = rand(1, 999999);
}
Oraculum_Request::setsess("captcha", $string);
} else {
$string = Oraculum_Request::sess("captcha");
}
$img = imagecreate(60, 25);
$backcolor = imagecolorallocate($img, 255, 255, 255);
$textcolor = imagecolorallocate($img, 00, 00, 00);
imagefill($img, 0, 0, $backcolor);
imagestring($img, 10, 5, 5, $string, $textcolor);
header("Content-type: image/jpeg");
imagejpeg($img);
}
public function verify($redirect = FALSE)
{
Oraculum_Request::init_sess();
$user = Oraculum_Request::sess($this->_sessname);
if (!is_null($user)) {
$ip = Oraculum_Crypt::strdcrypt($user['ip']);
if ($ip != Oraculum_HTTP::ip()) {
if ($redirect) {
Oraculum_HTTP::redirect($this->_logoffurl);
}
return false;
} else {
return true;
}
} else {
if ($redirect) {
Oraculum_HTTP::redirect($this->_logoffurl);
}
return false;
}
}
function sess($indice)
{
return Oraculum_Request::sess($indice);
}
