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<?php
 
class IpGeoFilter extends sfFilter
{
  const COOKIE_NAME = 'ct';
 
  public function execute($filterChain)
  {
    if ($this->isFirstCall())
    {
      $ip = sfContext::getInstance()->getRequest()->getRemoteAddress();
 
      if (!sfContext::getInstance()->getRequest()->getCookie(self::COOKIE_NAME))
      {
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, sprintf('http://ipgeobase.ru:7020/geo?ip=%s', $ip));
        curl_setopt($ch, CURLOPT_HEADER, false);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_TIMEOUT, 3);
        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 3);
        curl_setopt($ch, CURLOPT_USERAGENT, 'my-site');
 
        $data = curl_exec($ch);
        $city = (!curl_errno($ch) && $xml = simplexml_load_string($data) ) ? $xml->ip->city : false;
 
        curl_close($ch);
 
        if ($city)
        {
          sfContext::getInstance()->getResponse()->setCookie(self::COOKIE_NAME, base64_encode($city), time() + 3600 * 24 * 7);
        }
      }
      else
      {
        $city = base64_decode(sfContext::getInstance()->getRequest()->getCookie(self::COOKIE_NAME));
      }
 
      if ($city)
      {
        sfContext::getInstance()->getUser()->setAttribute('city', $city);
      }
    }
 
    $filterChain->execute();
  }
}