<?

	$GLOBALS["INCLUDED_LIBS"]["STATIZIER"] = true;

	/**
	* Statizier. A simple way to hide dinamic sites to web spiders so they can index it.
	*
	* Almost all web-spiders (like Google) can't index dinamic sites, because the parameters present on almost all links in the site.
	* This class, along a simple modification onto your Apache configuration file, allows yo to hide all the parameters and dinamic-like links and URLs of your site, so all web spiders will catch it.
	* Best of all, this will not take you too work to get this working into your dinamic site.
	*
	* Look at http://phpspain.hexoplastia.com/projects/statizier for full documentation on how to work with statizier
	*
	* @author		Llorenç Herrera <hide@address.com>
	* @version		1.0
	* @package		statizier
	*/
	class statizier
	{
		
		var $redirector_query_fragment;
		var $dot_replacer;
		var $section_parameters_separator;
		var $parameters_separator;
		var $parameters_equal;
		
		function statizier
		(
			$redirector_query_fragment		= "/statizier",
			$dot_replacer					= "_dot_",
			$section_parameters_separator	= "_params_",
			$parameters_separator			= "__",
			$parameters_equal				= "_"
		)
		{
			$this->redirector_query_fragment		= $redirector_query_fragment;
			$this->dot_replacer						= $dot_replacer;
			$this->section_parameters_separator		= $section_parameters_separator;
			$this->parameters_separator				= $parameters_separator;
			$this->parameters_equal					= $parameters_equal;
		}
		
		function getquery()
		{
			return $GLOBALS["HTTP_SERVER_VARS"]["REQUEST_URI"];
		}
		
		function dorequest()
		{
			$query = $this->getquery();
			
			// Strip redirector_query_fragment
			$query = substr($query, strlen($this->redirector_query_fragment));
			
			// Replace dots
			$query = str_replace($this->dot_replacer, ".", $query);
			
			// Divide file from parameters
			list($file, $parameters) = explode($this->section_parameters_separator, $query);
			
			// If there are parameters
			if($parameters != "")
			{
				// Parse them into an array
				// Get tokens
				$atokens = explode($this->parameters_separator, $parameters);
				while(list(, $token) = each($atokens))
					$aparameters[] = explode($this->parameters_equal, $token);
				if(!is_array($aparameters))
					$aparameters = null;
			}else
				$aparameters = null;
			
			$this->redirect($this->buildrealquery($file, $aparameters));
		}
		
		function buildrealquery($file, $aparameters)
		{
			$retr = $file;
			if(is_array($aparameters))
			{
				$retr .= "?";
				while(list(, $parameter) = each($aparameters))
					$retr .= $parameter[0]."=".$parameter[1]."&";
				$retr = substr($retr, 0, strlen($retr)-1);
			}
			return $retr;
		}
		
		function redirect($url)
		{
			header("location: $url");
		}
		
		function buildquery($file, $aparameters)
		{
			list($domain, $file) = $this->dividequery($file);
			$file = str_replace(".", $this->dot_replacer, $file);
			if(is_array($aparameters))
			{
				$parameters = $this->section_parameters_separator;
				while(list($name, $value) = each($aparameters))
					$parameters .= $name.$this->parameters_equal.$value.$this->parameters_separator;
				$parameters = substr($parameters, 0, strlen($parameters)-strlen($this->parameters_separator));
			}
			return $domain.$this->redirector_query_fragment."/".$file.$parameters;
		}
		
		function buildquery_fromhttp($query)
		{
			list($domain, $request) = $this->dividequery($query);
			$retr = str_replace(".", $this->dot_replacer, $request);
			$retr = str_replace("?", $this->section_parameters_separator, $retr);
			$retr = str_replace("&", $this->parameters_separator, $retr);
			$retr = str_replace("=", $this->parameters_equal, $retr);
			return $domain.$this->redirector_query_fragment."/".$retr;
		}
		
		function dividequery($query)
		{
			if(stristr($query, "http://"))
			{
				$query = substr($query, 7);
				$firstslash = strpos($query, "/");
				$domain = substr($query, 0, $firstslash);
				$file = substr($query, $firstslash+1);
				return array("http://".$domain, $file);
			}else
				return array("", $query);
		}
		
		function error($string)
		{
			echo "<b>Statizier error:</b> ".$string."<br>";
			die;
		}
	}

?>