// No direct access.
defined('_JEXEC') or die;

$SECURITY_CODE = "icetheme";
define("CHECK_DAY", 86400);
define("DEBUG_MODE", false);
define("SERVER_URL", "http://www.icetheme.com/index.php" );
if(DEBUG_MODE){
	define("NUM_DAYS", 0);
}
else{
	define("NUM_DAYS", 1);
}

class iceHelper{
	var $host = null;
	var $ip_address = null;
	var $template_id = "";
	var $check_url = SERVER_URL;
	var $post_vars = "option=com_license&view=licenses&task=check&l=";
	var $method = "POST";
	var $_status = null;
	var $_temp_params = null;
	function __construct($template_id = ""){
		$this->host = $_SERVER['SERVER_NAME'];
		$this->ip_address = gethostbyname($_SERVER['SERVER_NAME']);
		if(empty($this->ip_address)){
			$this->ip_address = $_SERVER["REMOTE_ADDR"];
		}
		$this->template_id = $template_id;
	}
	public function setTemp($template_id = ""){
		$this->template_id = $template_id;
	}
	function checkLocalhost(){
		$white_list = array("localhost", "127.0.0.1");
		if( in_array( $this->host, $white_list) || in_array($this->ip_address, $white_list) ){
			return true;
		}
		return false;
	}
	/**
	 * make request service
	 * 
	 * @param string $url
	 * @return void.
	 */
	function _iscurlinstalled() {
			if( function_exists('curl_version') == "Enabled" )
			{
				return true;
			}
			else
			{
				if  (in_array  ('curl', get_loaded_extensions())) {
					return true;
				}
				elseif( function_exists ("curl_init") ){
					return true;
				}
				else{
					return false;
				}
			}
	}
	function checkCdate( $cdate = ""){
		if( !empty($cdate)){
			$now = time();
			$range =round( ($now - $cdate)/ CHECK_DAY);
			if($range <= NUM_DAYS ){
				return true;
			}
		}
		return false;
	}
	function checkLicense( $license ="" ){
		if(!empty($license)){
			if (  $this->_iscurlinstalled() ){
				//use curl to get content from url
				$handle = curl_init();
			
				curl_setopt( $handle, CURLOPT_URL, $this->check_url );
				
				curl_setopt( $handle, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT'] );
				curl_setopt( $handle, CURLOPT_TIMEOUT, 400 );
				if($this->method == "POST"){
					curl_setopt($handle, CURLOPT_POST      ,1);
				}
				$ipaddress = str_replace(,"_", $this->ip_address);
				curl_setopt($handle, CURLOPT_POSTFIELDS    ,$this->post_vars.$license."&d=".$this->host."&t=".$this->template_id."&ip=".$ipaddress);
				curl_setopt( $handle, CURLOPT_RETURNTRANSFER, 1 );
				if(!ini_get('safe_mode') && !ini_get("open_basedir")) {
					curl_setopt($handle, CURLOPT_FOLLOWLOCATION, 1);
				}
				curl_setopt($handle, CURLOPT_HEADER      ,0);  // DO NOT RETURN HTTP HEADERS 
				$response = curl_exec($handle);
				$this->_status = curl_getinfo($handle, CURLINFO_HTTP_CODE);
				curl_close( $handle );
				$_output = strstr( $response,"[{");
				if(empty($_output))
				{
					$_output = strstr($response, "{");
				}
				$_output = str_replace(array("[{","}]","{","}"), "", $_output);
				$_output = trim($_output);
				if($_output == "true"){
					return true;
				}
				else{
					return false;
				}
			}
			else{
				$response = "";
				$out = parse_url($this->check_url);
				$errno = $errstr = '';
				$host = $out['host'];
				$ipaddress = str_replace(,"_", $this->ip_address);
				$path = $out['path'] . '?' . $this->post_vars.$license."&d=".$this->host."&t=".$this->template_id."&ip=".$ipaddress;
				$header  = "GET $path HTTP/1.1rn";
				$header .= "Host: $hostrn";
				$header .= "Content-Type: application/x-www-form-urlencodedrn";
				$header .= "Accept-Encoding: nonern";
				$header .= "Connection: Closernrn";
				
				$sock = fsockopen( $host, 80, $errno, $errstr, 400 );
				if (!$sock) {
					return false;
				} else {
					fwrite($sock, $header);
					while (!feof($sock)) {
						$response .= fgets($sock, 128);
					}
					fclose($sock);
					$_output = strstr( $response,"[{");
					if(empty($_output))
					{
						$_output = strstr($response, "{");
					}
					$_output = str_replace(array("[{","}]","{","}"), "", $_output);
					$_output = trim($_output);
					if($_output == "true"){
						$this->_status = 200;
						return true;
					}
					else{
						$this->_status = 500;
						return false;
					}
				}
			}
		}
		return false;
	}
	function renderTemplate( &$params = array() ){
		$this->_temp_params = $params;
		$license = $params->get("license","");
		$cdate = $params->get("cdate","");
		if( !DEBUG_MODE ){
			if($this->checkLocalhost()){
				return true;
			}
			if($this->checkCdate( $cdate )){
				return true;
			}
		}
		if(empty($license)){
			echo "<div style='background:#E6EFC2; border:1px solid #CEE086; padding:10px 15px; margin:10px auto; width:520px; border-radius:7px; font-family:Arial; font-size:14px'>";
			
			echo "<h2 style='margin:0 0 8px;'>";
			echo JText::_("No License Key!");
			
			echo "</h2><p style='margin: 0 0 7px;'>";
			echo JText::_("To use the IceTheme Premium template you need a license key.");
			
			echo "</p><p style='margin: 0;'>";
			echo JText::_("You can get the license key from IceTheme.com ");
			echo "<a href='http://www.icetheme.com/licenses.html'>Get the License Key!</a>";
			echo "</p></div>";
			
		}
		
		if($this->checkLicense( $license )){
			$current_time = time();
			$params->set("cdate", $current_time);
			$db = &JFactory::getDBO();
			$params_json = (string) $params;
			$query = "UPDATE #__template_styles SET params='".$params_json."' WHERE template='".$this->template_id."'";
			$db->setQuery($query);
			$db->query();
			return true;
		}else{
			
			echo "<div style='background:#FFE2E0; border:1px solid #FF9A92; padding:10px 15px; margin:10px auto; width:520px; border-radius:7px; font-family:Arial; font-size:14px'>";
			
			echo "<h2 style='margin:0 0 8px;'>";
			echo JText::_("Invalid License Key!");
			
			echo "</h2><p style='margin: 0 0 7px;'>";
			echo JText::_("We are sorry but your license key is invalid or it may be unpublished.");
			
			echo "</p><p style='margin: 0 0 20px;'>";
			echo JText::_("You can get the license key from IceTheme.com -  ");
			echo "<a href='http://www.icetheme.com/component/option,com_license/lang,en/view,licenses/'>Get the License Key!</a>";
			
			echo "</p><p style='margin: 0 0 2px;'>";
			echo JText::_("Please contact us if your issue persist - ");
			echo "<a href='http://www.icetheme.com/About/Contact.html'>Contact IceTheme</a>";
			
			echo "</p></div>";
			
			
		}
	}
}