<?
error_reporting(E_ALL);
 /* 
	tvkontakte 0.1
	vkontakte.ru status updater from twitter
	made by Vladimir Smirnoff
	http://orl.sumy.ua
	mail@smirnoff.sumy.ia
 */

# SETTINGS, EDIT ME
define ('TWITTER_USERNAME','billgates');
define ('VKONTAKTE_LOGIN','mail@mail.ru');
define ('VKONTAKTE_PASSWORD','isuckcocks');
define ('PREPEND_WORD','Twitter: '); // max lenght - 20 = 160 in vkontakte - 140 in twitter 
#

class vkuserapi {
	private $curlh = null;
	public $uid = null; 	// vkontakte userid
	private $sid = null; 	// vkontakte session id
	
	public function __construct ($login,$password) {
		$this->curlh = curl_init();
		$request = 'http://login.userapi.com/auth?site=2&login=force&pass='.urlencode($password).'&email='.urlencode($login);
		curl_setopt($this->curlh, CURLOPT_URL,$request);
		curl_setopt($this->curlh, CURLOPT_FAILONERROR, true);
		curl_setopt($this->curlh, CURLOPT_FOLLOWLOCATION, false); // no redirects
		curl_setopt($this->curlh, CURLOPT_RETURNTRANSFER, true);
		curl_setopt($this->curlh, CURLOPT_POST, false); 
		curl_setopt($this->curlh, CURLOPT_HEADER, true);
		$auth_result = curl_exec($this->curlh);
		if (preg_match("/remixmid=(\d+)/", $auth_result, $matches)) $this->uid = $matches[1]; 	// get user id from http headers
		if (preg_match("/.*;sid=(\w*)/", $auth_result, $matches)) $this->sid = $matches[1]; 	// get session id from http headers
	}
	
	public function call ($func,$params) {
		curl_setopt($this->curlh, CURLOPT_HEADER, false);
		$request = 'http://userapi.com/data?act='.$func.'&'.http_build_query ($params).'&sid='.$this->sid;
		curl_setopt($this->curlh, CURLOPT_URL,$request);
		$result = curl_exec($this->curlh);
		return json_decode($result);
	}
	
	public function __destruct () {
		$request = 'http://login.userapi.com/auth?​login=logout&site=2&​sid='.$this->sid;
		curl_setopt($this->curlh, CURLOPT_URL,$request);
		curl_exec($this->curlh);
		curl_close ($this->curlh);
	}
}

// get twitter last status
$rss = simplexml_load_file('http://twitter.com/statuses/user_timeline/'.TWITTER_USERNAME.'.rss');
foreach ($rss->channel->item as $status) {
	if (strpos($status->title,'@')) continue; // filter twitter @username replies
	$last_status_twitter = str_replace (TWITTER_USERNAME.': ','',$status->title); break;
}

// get vkontakte last status
$vkontakte = new vkuserapi (VKONTAKTE_LOGIN,VKONTAKTE_PASSWORD);
$status = $vkontakte->call ('activity',array('id'=>$vkontakte->uid,'from'=>0,'to'=>1));
$last_status_vkontakte = str_replace (PREPEND_WORD,'',$status->d[0][5]);

// if last twitt != last vkontakte status - update vkontakte
if ($last_status_vkontakte != $last_status_twitter.'.') $vkontakte->call ('set_activity',array('ts'=>time(),'text'=>PREPEND_WORD.$last_status_twitter));
else echo ('no update needed');

unset ($vkontakte); //logout