function OS_CheckCaptchaRegistration()
{
$error = "";
if (isset($_SESSION["r_code"]) and $_SESSION["r_code"] == "OK") {
/* CAPTCHA OK */
} else {
if (isset($_POST["register_"])) {
$error = "";
if (!isset($_POST["r_captcha"]) or !isset($_SESSION["r_code"])) {
$error .= "<h2>Invalid captcha form</h2>";
} else {
if ($_POST["r_captcha"] != $_SESSION["r_code"]) {
$error .= "<h2>Invalid captcha code</h2>";
} else {
if (!isset($_SESSION["r_trap1"]) or !isset($_SESSION["r_trap2"])) {
$error .= "<h2>Invalid captcha form</h2>";
} else {
if (!isset($_POST[$_SESSION["r_trap1"]])) {
$error .= "<h2>Invalid captcha form</h2>";
} else {
if (isset($_SESSION["r_trap1"]) and isset($_SESSION["r_trap2"]) and isset($_POST[$_SESSION["r_trap1"]]) and $_SESSION["r_trap2"] != $_POST[$_SESSION["r_trap1"]]) {
$error .= "<h2>Invalid captcha form</h2>";
}
}
}
}
}
if (!empty($error)) {
os_trigger_error($error . " ");
}
$_SESSION["r_code"] = "OK";
}
}
}
function OS_CheckCaptcha()
{
if (isset($_POST["post_comment"])) {
if (isset($_GET["post_id"]) and is_numeric($_GET["post_id"])) {
$backTo = OS_HOME . '?post_id=' . safeEscape($_GET["post_id"]) . "&" . generate_hash(12) . "#SubmitComment";
} else {
$backTo = '';
}
$CaptchaError = '<h2>Invalid captcha</h2><div><a href="' . $backTo . '">« Back</a></div>';
if (!isset($_POST["c_code"]) or !isset($_SESSION["c_code"])) {
os_trigger_error($CaptchaError);
}
if ($_POST["c_code"] != $_SESSION["c_code"]) {
os_trigger_error($CaptchaError . " ");
} else {
$code = generate_hash(5);
$code = str_replace(array("o", "0"), array("x", "x"), $code);
$_SESSION["c_code"] = $code;
}
}
}
}
if ($OS_INSTALLED == 0) {
require_once "install/install.php";
die;
} else {
if (file_exists("install")) {
os_trigger_error("Please delete <b>install/</b> folder");
}
if (file_exists("install/install.php")) {
os_trigger_error("Please delete or rename <b>install.php</b>");
}
if (file_exists("sql_data.sql")) {
os_trigger_error("Please delete or rename <b>sql_data.sql</b>");
}
if (file_exists("sql_heroes_items.sql")) {
os_trigger_error("Please delete or rename <b>sql_heroes_items.sql</b>");
}
}
function get_value_of($name, $file = "../config.php")
{
$lines = file($file);
$val = array();
foreach (array_values($lines) as $line) {
if (strstr($line, "=")) {
list($key, $val) = explode('=', trim($line));
if (trim($key) == $name) {
$val = str_replace(";", "", $val);
$val = str_replace("'", "", $val);
$val = str_replace('"', "", $val);
return $val;
}