function event_connect($header, $data)
{
$connect_info['protocol_name'] = decodeString($data);
$offset = strlen($connect_info['protocol_name']) + 2;
$connect_info['version'] = ord(substr($data, $offset, 1));
$offset += 1;
$byte = ord($data[$offset]);
$connect_info['willRetain'] = $byte & 0x20 == 0x20;
$connect_info['willQos'] = $byte & 0x18 >> 3;
$connect_info['willFlag'] = $byte & 0x4 == 0x4;
$connect_info['cleanStart'] = $byte & 0x2 == 0x2;
$offset += 1;
$connect_info['keepalive'] = decodeValue(substr($data, $offset, 2));
$offset += 2;
$connect_info['clientId'] = decodeString(substr($data, $offset));
return $connect_info;
}
function stripTags($str, $tags)
{
if (is_string($str)) {
$whitelist = array('iframe');
$tags = !is_array($tags) ? array($tags) : $tags;
$str = decodeValue($str);
foreach ($tags as $tag) {
preg_match_all('/<' . $tag . '.*?(src=("|\')(.*?)\\2.*?)?\\/?>((.*?)<\\/' . $tag . '>)?/ism', $str, $m);
if (isset($m[0]) && !empty($m[0])) {
foreach ($m[0] as $k => $v) {
// 0 = complete
// 3 = src url if applicable
// 5 = innerHTML if applicable
$e_tag = $tag;
$keep = false;
if (in_array($tag, $whitelist)) {
// Figure URL
$url = $m[3][$k];
if (!empty($url)) {
$e_tag = $e_tag . ' with src of: ' . $url;
$keep = isHostApproved($url);
}
}
// If not a keeper, replace with HTML comment
if ($keep === false) {
$str = str_replace($m[0][$k], '<!-- tag (' . $e_tag . ') not allowed -->', $str);
}
}
}
}
}
return $str;
}
protected function clean()
{
$method = isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] == 'POST' ? $_POST : $_GET;
$this->original = new stdClass();
$this->clean = new stdClass();
$this->db_clean = new stdClass();
$this->html_clean = new stdClass();
if (!empty($method)) {
foreach ($method as $k => $v) {
$this->original->{$k} = $v;
$v = trim(decodeValue($v));
$this->clean->{$k} = strip_tags($v);
$this->db_clean->{$k} = $this->db->escape_str($this->clean->{$k});
$this->html_clean->{$k} = $this->db->escape_str(purifyHTML($v));
}
}
}