<?php
/*
	Plugin Name: AdSense Control
	Plugin URI: http://opreh.com.br/
	Description: Controls how the post will show up ads and also releases for the visitors from Google
	Version: 1.1
	Author: Opreh
	Author URI: http://opreh.com.br/
*/


	define("AC_VERSION","1.0");
	require_once("meta-box-ac.php");	
	
	function ac_search_is_the_reference(){
		  $ref = $_SERVER['HTTP_REFERER'];
		  $SE = array('/search?','.google.', 'images.google.', 'web.info.com', 'search.', 'del.icio.us/search', 'soso.com', '/search/', '.yahoo.');
		  foreach ($SE as $source) {
			if (strpos($ref,$source)!==false) return true;
		  }
		  return false;
	}

	function ac_get_nivel(){
		global $post;
		return get_post_meta($post->ID, 'ac_meta_box_active', true);
	}
	
	function ac_check(){
		$nivel = ac_get_nivel();
		switch($nivel){
			case "0":
				return false;
			break;
			case "1":
				return true;
			break;
			case "2":
				if(ac_search_is_the_reference()){
					return true;
				}
				return false;
			break;
			case "3":
				if(!ac_search_is_the_reference()){
					return true;
				}
				return false;
			break;
		}
	
		
	}



?>