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- <?php
- namespace Kitsune\ClubPenguin\Plugins\AntiCensor;
- use Kitsune\Logging\Logger;
- use Kitsune\ClubPenguin\Packets\Packet;
- use Kitsune\ClubPenguin\Plugins\Base\Plugin;
- final class AntiCensor extends Plugin {
- public $worldHandlers = array(
- "s" => array(
- "m#sm" => array("handleSendMessage", self::Before),
- "m#spm" => array("handleSendPrivateMessage", self::Before),
- "s#upm" => array("handleSendUpdatePlayerMood", self::Before)
- )
- );
- public $xmlHandlers = array(null);
- public $urls;
- public $excludables = array("cpps"); #~ list of phrases to exclude from the filter
- public $cache;
- const FileName = "censor.json";
- public function __construct($server) {
- $this->server = $server;
- }
- public function onReady() {
- parent::__construct(__CLASS__);
- if(file_exists(self::FileName)) {
- $jsonData = file_get_contents(self::FileName);
- } else {
- Logger::Error("Couldn't locate '" . self::FileName . "'");
- return;
- }
- $this->urls = json_decode($jsonData, true);
- $this->cache = $this->urls; #~ cache the original urls so we can update the data store
- Logger::Info("Building table of banned URLs");
- #~ generate a table of cheeky versions!
- foreach($this->urls as $url) {
- $url = explode(".", $url);
- $this->urls[] = implode("", $url);
- if(!in_array($url[0], $this->excludables)) {
- $this->urls[] = $url[0];
- }
- }
- Logger::Info("Table of " . count($this->urls) . " bad URLs built");
- }
- public function handleSendMessage($penguin) {
- $message = Packet::$Data[3];
- if(!$this->check($message)) {
- Packet::$Extension = null;
- Logger::Warn("{$penguin->username} sent bad URL '$message'");
- }
- }
- public function handleSendPrivateMessage($penguin) {
- $message = Packet::$Data[3];
- if(!$this->check($message)) {
- Packet::$Extension = null;
- Logger::Warn("{$penguin->username} sent bad URL '$message'");
- }
- }
- public function handleSendUpdatePlayerMood($penguin) {
- $mood = Packet::$Data[2];
- if(!$this->check($mood)) {
- Packet::$Extension = null;
- Logger::Warn("{$penguin->username} used a bad URL in their mood '$mood'");
- }
- }
- private function check($string) {
- #~ reverse any dumb shit the user did to fool the system
- $normalizeChars = array(
- 'Š'=>'S', 'š'=>'s', '?'=>'Dj','Ž'=>'Z', 'ž'=>'z', 'A'=>'A', 'Á'=>'A', 'Â'=>'A', 'A'=>'A', 'Ä'=>'A',
- 'A'=>'A', 'A'=>'A', 'Ç'=>'C', 'E'=>'E', 'É'=>'E', 'E'=>'E', 'Ë'=>'E', 'I'=>'I', 'Í'=>'I', 'Î'=>'I',
- 'I'=>'I', 'N'=>'N', 'Ń'=>'N', 'O'=>'O', 'Ó'=>'O', 'Ô'=>'O', 'O'=>'O', 'Ö'=>'O', 'O'=>'O', 'U'=>'U', 'Ú'=>'U',
- 'U'=>'U', 'Ü'=>'U', 'Ý'=>'Y', '?'=>'B', 'ß'=>'Ss','a'=>'a', 'á'=>'a', 'â'=>'a', 'a'=>'a', 'ä'=>'a',
- 'a'=>'a', 'a'=>'a', 'ç'=>'c', 'e'=>'e', 'é'=>'e', 'e'=>'e', 'ë'=>'e', 'i'=>'i', 'í'=>'i', 'î'=>'i',
- 'i'=>'i', '?'=>'o', 'n'=>'n', 'ń'=>'n', 'o'=>'o', 'ó'=>'o', 'ô'=>'o', 'o'=>'o', 'ö'=>'o', 'o'=>'o', 'u'=>'u',
- 'ú'=>'u', 'u'=>'u', 'ü'=>'u', 'ý'=>'y', 'ý'=>'y', '?'=>'b', 'y'=>'y', 'f'=>'f',
- 'ă'=>'a', 'î'=>'i', 'â'=>'a', '?'=>'s', '?'=>'t', 'Ă'=>'A', 'Î'=>'I', 'Â'=>'A', '?'=>'S', '?'=>'T',
- );
- $string = strtr($string, $normalizeChars);
- $string = strtolower($string);
- $old = $string;
- $string .= preg_replace("/(.)\\1+/", "$1", $old);
- $string = preg_replace("/[^A-Za-z0-9]/", "", $string);
- $english = array("a", "e", "s", "a", "o", "t", "l", "H", "W", "M", "D", "V", "x", ".");
- $leet = array("4", "3", "z", "4", "0", "+", "1", "|-|", "\\/\\/", "|\\/|", "|)", "\\/", "><", "dot");
- $string = str_replace($leet, $english, $string);
- #~ check if their message contains a banned URL
- foreach($this->urls as $url) {
- if(strpos($string, $url) !== false){
- return false;
- }
- $url = preg_replace("/(.)\\1+/", "$1", $url);
- if(strpos($string, $url) !== false && $url != $old) {
- return false;
- }
- }
- return true;
- }
- }
- ?>
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