-2
I’m doing torrent Scrap, and the script works on the localhost, with xampp server, and on the hostgator server it doesn’t work, someone knows why ?
Scrap.php
<?php
include "httptscraper.php";
try{
$timeout = 2;
$scraper = new udptscraper($timeout);
$ret = $scraper->scrape('udp://tracker.openbittorrent.com:80',array('7C90CFEE93DE8C4FA04526DAA5CE530ADFB8DF6E'));
print_r($ret);
}catch(ScraperException $e){
echo('Error: ' . $e->getMessage() . "<br />\n");
echo('Connection error: ' . ($e->isConnectionError() ? 'yes' : 'no') . "<br />\n");
}
?>
httptscraper.php
<?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,8,8);
//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) < 8){ 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);
}
}
?>
tscraper.php
<?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;
}
}
?>
system generates any error message? appears something in the logs of your application?
– Marcelo Bezerra bovino
nothing appears in the logs, the script generates a message that is Error: Could not open HTTP Connection. Connection error: yes
– user3517672