SA-MP Shoutcast API R2

<?php

/**
 * --------------- ShoutCast Radio Stations Search API ---------------
 *
 * @author Pedro P. L. Papadópolis (a.k.a Mandrakke).
 * @copyright There is no copyright, you can use it as you want, you can also show it to you mother to her see how much you are smart.
 *
 * If you speak Portuguese, try out our server;
 * http://brazucas-server.com
 *
 * If you dont, try out our translated-to-english tool (SA-MP Online Objects Viewer);
 * http://brazucas-server.com/$objetos
 *
 *
 * This script is also hosted on http://api.brazucas-dev.com/ShoutCastAPI.php but it can be turned offline at any time if the number of requests increase too much.
 *
 * More information about how to integrate this script with a SA-MP server can be find at the oficial topic on SA-MP forums;
 * http://forum.sa-mp.com/showthread.php?t=347016
 *
 *
 *
 * Version: R2 (released in 04/08/2014)
 *
 * -------------------------------------------------------------------
 */

if(!function_exists("curl_init")) die("cURL library is required.");

//Disable error messages, if you have issues with this script, comment this line below to see which error occurs.
error_reporting("E_ALL");

final class ShoutCastAPI {
    private $forbidden = array('-','!','"','#','$','%','&','\'','(',')','*','+',',','.','/',':',';','<','=','>','?','@','[','\\',']','_','`','{','|','}','~');
    private $shoutcastUrlPrefix = 'http://www.shoutcast.com/';

    function __construct() {
        $RequestValues = array(
            "genre"     => ($_GET['genre'])?(int)$_GET['genre']:null,
            "station"   => ($_GET['station'])?(int)$_GET['station']:null,
            "type"      => ($_GET['type'])?(int)$_GET['type']:null,
            "artist"    => ($_GET['artist'])?(int)$_GET['artist']:null,
            "song"      => ($_GET['song'])?(int)$_GET['song']:null
        );

        $validParams = false;
        foreach($_GET as $ind => $val)
            foreach($RequestValues as $searchInd => $searchVal)
                if($searchInd == $ind) {
                    $validParams = true;
                    break;
                }

        if(isset($_GET['getStreamUrl'])) {
            $url = $this->shoutcastUrlPrefix. 'Player/GetStreamUrl';
        } else if(count($_GET) > 0 && $validParams) {
            $url = $this->shoutcastUrlPrefix. 'Search/UpdateAdvancedSearch';
        } else {
            $url = $this->shoutcastUrlPrefix. 'Home/Top';
        }

        $count  = ($_GET['count'])?(int)$_GET['count']:10;
        $start  = ($_GET['start'])?(int)$_GET['start']:0;
        $show   = ($_GET['show'])?explode('|', $_GET['show']):false;

        $params = null;
        foreach($RequestValues as $ind => $val) {
            if($_GET[$ind] !== null)
                $RequestValues[$ind] = $_GET[$ind];

            $params .= $ind. "=". $RequestValues[$ind]. "&";
        }

        $stations = array();

        $req = $this->Request($url, 1, null, $params, $this->shoutcastUrlPrefix);

        if(isset($_GET['getStreamUrl'])) die($req['data'][1]);

        $i = 0;

        $response = json_decode($req['data'][1]);

        foreach($response as $station) {
            if(isset($_GET['streamUrl'])) {
                $stationUrlRequest = $this->Request($this->shoutcastUrlPrefix. 'Player/GetStreamUrl', 1, null, array('station' => $station->ID), $this->shoutcastUrlPrefix);
                preg_match('/"(.*?)"/', $stationUrlRequest['data'][2], $stationUrl);

                $stations['stations']['s'. $i]['streamUrl'] = $stationUrl[1];
            }

            foreach($station as $ind => $val)
                if($i >= $start && (in_array($ind, $show) || !$show))
                    $stations['stations']['s'. $i][$ind] = $val;

            if($i > $count) break;
            ++$i;
        }

        $stations["stations"]["count"] = $i;

        if(@$vars = $_GET["show"]) {
            $showOnly = explode("|", $vars);

            foreach($stations["stations"] as $stationId => $stationData)
                foreach($stationData as $ind => $val)
                    if(!in_array($ind, $showOnly))
                        unset($stations["stations"][$stationId][$ind]);
        }

        switch(strtolower($_GET["format"])) {
            case "json":
                $output = json_encode($stations);
                break;
            case "dini":
            default:
                $output = null;
                foreach($stations["stations"] as $stationId => $stationData)
                    if(is_array($stationData))
                        foreach($stationData as $ind => $val)
                            $output .= $stationId. $ind. "=". $val. "\r\n";
                    else
                        $output .= $stationId. "=". $stationData. "\r\n";
        }

        die($output);
    }

    private function Request($a, $b, $c, $d, $e) {
        $ch = curl_init();

        $exec = curl_setopt_array($ch, array(
                CURLOPT_URL => $a,
                CURLOPT_RETURNTRANSFER => $b,
                CURLOPT_HEADER => 1,
                CURLOPT_NOBODY => 0,
                CURLOPT_COOKIE => $c,
                CURLOPT_CUSTOMREQUEST => ($d)?"POST":"GET",
                CURLOPT_POSTFIELDS => $d,
                CURLOPT_FOLLOWLOCATION => 1,
                CURLOPT_TIMEOUT => 6,
                CURLOPT_REFERER => $e
            )
        );

        return array(
            "data"      => explode("\r\n\r\n", curl_exec($ch), 3),
            "httpcode"  => (int)curl_getinfo($ch, CURLINFO_HTTP_CODE)
        );
    }
} new ShoutCastAPI();
?>