Scrap Torrent PHP

[AlanPS]

i'm Doing scrap torrents and taking the seeds of them, I use the script that I found on
 the internet and it uses socket to connect the tracker and get the data, it typically 
run on my localhost with xampp server but when it does not send pro server works, it does not 
catch the seeds of the stream and the script generates an error message

the script:

<?php
	/* 	Torrent UDP Scraper
		v1.2
		
		2010 by Johannes Zinnau
		[email protected]
		
		Licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License
		http://creativecommons.org/licenses/by-sa/3.0/
		
		It would be very nice if you send me your changes on this class, so that i can include them if they are improve it.
		Thanks!
		
		Usage:
		try{
			$timeout = 2;
			
			$scraper = new udptscraper($timeout);
			$ret = $scraper->scrape('udp://tracker.tld:port',array('0000000000000000000000000000000000000000'));
			
			print_r($ret);
		}catch(ScraperException $e){
			echo('Error: ' . $e->getMessage() . "<br />\n");
			echo('Connection error: ' . ($e->isConnectionError() ? 'yes' : 'no') . "<br />\n");
		}
	*/

include "tscraper.php";

	class udptscraper extends tscraper{


		/* 	$url: Tracker url like: udp://tracker.tld:port or udp://tracker.tld:port/announce
			$infohash: Infohash string or array (max 74 items). 40 char long infohash. 
			*/
		public function scrape($url,$infohash){
			if(!is_array($infohash)){ $infohash = array($infohash); }
			foreach($infohash as $hash){
				if(!preg_match('#^[a-f0-9]{40}$#i',$hash)){ throw new ScraperException('Invalid infohash: ' . $hash . '.'); }
			}
			if(count($infohash) > 74){ throw new ScraperException('Too many infohashes provided.'); }
			if(!preg_match('%udp://([^:/]*)(?:[0-9]*))?(?:/)?%si', $url, $m)){ throw new ScraperException('Invalid tracker url.'); }
			$tracker = 'udp://' . $m[1];
			$port = isset($m[2]) ? $m[2] : 80;


			$transaction_id = mt_rand(0,65535);
			$fp = fsockopen($tracker, $port, $errno, $errstr);
			if(!$fp){ throw new ScraperException('Could not open UDP connection: ' . $errno . ' - ' . $errstr,0,true); }
			stream_set_timeout($fp, $this->timeout);


			$current_connid = "\x00\x00\x04\x17\x27\x10\x19\x80";


			//Connection request
			$packet = $current_connid . pack("N", 0) . pack("N", $transaction_id);
			fwrite($fp,$packet);


			//Connection response
			$ret = fread($fp, 16);
			if(strlen($ret) < 1){ throw new ScraperException('No connection response.',0,true); }
			if(strlen($ret) < 16){ throw new ScraperException('Too short connection response.'); }
			$retd = unpack("Naction/Ntransid",$ret);
			if($retd['action'] != 0 || $retd['transid'] != $transaction_id){
				throw new ScraperException('Invalid connection response.');
			}
			$current_connid = substr($ret,8,;


			//Scrape request
			$hashes = '';
			foreach($infohash as $hash){ $hashes .= pack('H*', $hash); }
			$packet = $current_connid . pack("N", 2) . pack("N", $transaction_id) . $hashes;
			fwrite($fp,$packet);


			//Scrape response
			$readlength = 8 + (12 * count($infohash));
			$ret = fread($fp, $readlength);
			if(strlen($ret) < 1){ throw new ScraperException('No scrape response.',0,true); }
			if(strlen($ret) < { throw new ScraperException('Too short scrape response.'); }
			$retd = unpack("Naction/Ntransid",$ret);
			// Todo check for error string if response = 3
			if($retd['action'] != 2 || $retd['transid'] != $transaction_id){
				throw new ScraperException('Invalid scrape response.');
			}
			if(strlen($ret) < $readlength){ throw new ScraperException('Too short scrape response.'); }
			$torrents = array();
			$index = 8;
			foreach($infohash as $hash){
				$retd = unpack("Nseeders/Ncompleted/Nleechers",substr($ret,$index,12));
				$retd['infohash'] = $hash;
				$torrents[$hash] = $retd;
				$index = $index + 12;
			}


			return($torrents);
		}
	}
?>

[QuickOldCar]

What's the error?

 

Did you ask Johannes Zinnau   [email protected] and see if he knows what issue could be?

[AlanPS]

the error:

 Error: Could not open HTTP connection. Connection error: yes 

in my localhost run, in hostgator, hostinger and others servers not run...

[AlanPS]

Code 2:

<?php
include "httptscraper.php";

$scrap1 = "$row[torrent]";
preg_match('#magnet:\?xt=urn:btih:(?<hash>.*?)&dn=(?<filename>.*?)&tr=(?<trackers>.*?)$#', $scrap1, $magnet_link);
$magnet_link['trackers'] = explode('&', urldecode(str_replace('tr=','', $magnet_link['trackers'])));
$resultados2 = $magnet_link['trackers'][0];
$resultados1 = $magnet_link['hash'];

try{
            $timeout = 2;

            $scraper = new udptscraper($timeout);
            $ret = $scraper->scrape($resultados2,array($resultados1));

            $array = $ret[$resultados1];
            $array2 = $array['seeders'];
            print_r($array2);
        }catch(ScraperException $e){
            echo "Sem Info";
            //echo('Error: ' . $e->getMessage() . "<br />\n");
            //echo('Connection error: ' . ($e->isConnectionError() ? 'yes' : 'no') . "<br />\n");
        }
?>

Code 3:

<?php
/*  Torrent Scraper Base Class
    v1.0

    2010 by Johannes Zinnau
    [email protected]

    Licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License
    http://creativecommons.org/licenses/by-sa/3.0/

    It would be very nice if you send me your changes on this class, so that i can include them if they are improve it.
    Thanks!

    Usage:
    See udptscraper.php or httptscraper.php
*/


class ScraperException extends Exception {
    private $connectionerror;


    public function __construct($message,$code=0,$connectionerror=false){
        $this->connectionerror = $connectionerror;
        parent::__construct($message, $code);
    }


    public function isConnectionError(){
        return($this->connectionerror);
    }
}


abstract class tscraper {
    protected $timeout;


    public function __construct($timeout=2){
        $this->timeout = $timeout;
    }
}


?>