function checkBan($board = false)
{
global $config;
if (!isset($_SERVER['REMOTE_ADDR'])) {
// Server misconfiguration
return;
}
if (event('check-ban', $board)) {
return true;
}
$ips = array();
$ips[] = $_SERVER['REMOTE_ADDR'];
if ($config['proxy_check'] && isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
$ips = array_merge($ips, explode(", ", $_SERVER['HTTP_X_FORWARDED_FOR']));
}
foreach ($ips as $ip) {
$bans = Bans::find($_SERVER['REMOTE_ADDR'], $board, $config['show_modname']);
foreach ($bans as &$ban) {
if ($ban['expires'] && $ban['expires'] < time()) {
Bans::delete($ban['id']);
if ($config['require_ban_view'] && !$ban['seen']) {
if (!isset($_POST['json_response'])) {
displayBan($ban);
} else {
header('Content-Type: text/json');
die(json_encode(array('error' => true, 'banned' => true)));
}
}
} else {
if (!isset($_POST['json_response'])) {
displayBan($ban);
} else {
header('Content-Type: text/json');
die(json_encode(array('error' => true, 'banned' => true)));
}
}
}
}
// I'm not sure where else to put this. It doesn't really matter where; it just needs to be called every
// now and then to keep the ban list tidy.
if ($config['cache']['enabled'] && ($last_time_purged = cache::get('purged_bans_last'))) {
if (time() - $last_time_purged < $config['purge_bans']) {
return;
}
}
Bans::purge();
if ($config['cache']['enabled']) {
cache::set('purged_bans_last', time());
}
}
