<?php
/* 
   VCaptcha
   http://captcha.vstudija.lt
   version. 1.0.1
   
*/
class VCaptcha {
        private $hash;
        private $lang;

        function __construct () {
             $this->hash = md5(uniqid());
        }
        
        function set_lang ($lang){
            $this->lang = $lang;
            return;
        }
        
        function get_hash (){
            return $this->hash;
        }
        
        function get_url ($bgcolor=""){
           $hash = $this->hash;
           $rt = "http://captcha.vstudija.lt/captcha/captcha.php?id=$hash&bgcolor=$bgcolor";
           if ($this->lang) $rt .= "&lang=".$this->lang;
           return $rt;
        }

        function validate ($hash, $cp){
            $ip = $this->ip;

            $host = "http://captcha.vstudija.lt/captcha/validate.php?hash=$hash&cp=";
            $host .= urlencode($cp)."&ip=".getenv("REMOTE_ADDR");

            $x = @file_get_contents ($host);
            if ($x==1) return 1;

            return 0;

        }
}
?>