<?	

include "./config.inc.php";
$start_time = microtime();	//get progs start time for calc run time for later.//
	
require "Fetcher.class.inc";
require "SBP.class.inc";
include_once "config.inc";

$fetcher = new Fetcher;		//new class for fetching//
$fetcher->init();

$sbp = new SBP;		//new class for manipulating input//
$sbp->init();


//Made obsolete by the onclick handler in javascript...keeping for ppl who don't want to have to use javascript.
@$form_url	=	$_POST['form_url'];
if(!empty($form_url))
{
	$url = $form_url;	//	get the url that the user had in input when they submitted the form	//
}
else
{
	@$url	=	$_GET['url'];
}
	if(empty($url))		$url = $default_url;

//Check the URL for protocol etc....
if(substr($url, 0, 7)	!= "http://")	//didn't start with 'http://'...we have a problem.//
{
	$url	=	"http://".$url;
}

if(substr($url, -6)==".cache")	//it's a cached image....don't fetch it...just open it!//
{
	//have to parse out the 'cache/' in the url!!
	//http://www.sufferingfools.net/dev-sbp/cache/ IS 44 long so parse that out!
	$url	=	substr($url, strlen($web_path_to_cache));
	
	$cached_source	=	@fopen($path_to_cache.$url, "r");
	$HTML		=	@fread($cached_source, filesize($path_to_cache.$url));
	
	$sbp->setHeaders($HTML, FALSE);	//pass the file's contents to the setHeader() func and inform it that it's a file//

	echo $HTML;
}
else	//url wasn't a cache file....
{
	//Check if there was a form redirected to SBP.//
	if(!empty($_POST['original_url']))
	{
		$form_submission	=	true;
	
	}
	else if(!empty($_GET['original_url']))
	{
		//have to strip off any unwanted stuff from original_url
		$url	=	explode(" ", $_GET['original_url']);
		$url	=	$url[0];
		
		$form_submission	=	false;
		$url	=	urldecode($url)."?".str_replace("original_url=".urlencode($_GET['original_url'])."&", "", $_SERVER['QUERY_STRING']);
		//$url	=	urldecode($url)."?".$_SERVER['QUERY_STRING'];
//		$fetcher->referer	=	$_GET['original_url'];
/*		echo "<!--
		QUERY STRING: ".$_SERVER['QUERY_STRING']."\n
		ORIGINAL_URL: ".urlencode($_GET['original_url'])."\n
		FORM GET URL: ".$url."\n
		REFERER: ".$fetcher->referer."-->\n";
		//$form_submission=true;
*/
	}
	if(!$form_submission)	//OK, no redirected form so go ahead and fetch a page.//
	{
		if($fetcher->fetch($url))
		{
			//get the page's source//
			$HTML = $fetcher->results;
		
			$HTML = $sbp->prependTitle($HTML, $title_tag);
			
			if($scrambleHTML)
			{
				//make the HTML source more difficult to match patterns to.//
				$HTML = $sbp->scrambleHTML($HTML);
			}
			
			if($scrambleURL)
			{
				//make the HTML source more difficult to match patterns to.//
				$HTML = $sbp->scrambleURL($HTML);
			}
		
			//complete local links so that they are fully qualified URIs//
			$HTML = $sbp->completeURLs($HTML, $url, $title_tag);
			
			if($domain2ip)
			{
				//replace all domain names with just their IP//
				$HTML = $sbp->domain2IP($HTML);
			}
			
			if($cacheFiles)
			{
				//fetch the images and cache them locally and replace the URLs to them with a URL to the local cache//
				$HTML = $sbp->cacheFiles($HTML);
			}
			
			//prepend the URL to this page so that all links go through the proxy//
			$HTML = $sbp->proxyURLs($HTML, $title_tag);
			
			if($isMenu)
			{
				//	embed my javascript menu	//
				$HTML = $sbp->embedMenu($HTML, $url);
			}
			
			//set any headers that need to be set.//
			$sbp->setHeaders($url, TRUE);
			
			//If set true, uses a javascript func that will hide the source from the user && the user's filters  :)//
			if($isHidden)
			{
				require 'Crypt.php';
				
				$c	=	new HTML_Crypt($HTML);
				
						$c->cryptText();
				$HTML	=	$c->getScript();
			}
			
			//ouput the page..so that frames atleast partially are written.	//
			print_r($HTML);
			flush();
			
			//make sure that the cache hasn't grown too large//
			if($check_size_cache)
			{
				$sbp->checkCache();
			}
				
			echo ("\n\n<!-- Version: ".$version." -->\n");
		
			//	Calculate execution time and add comment with that info	//
			$execution_time = $sbp->processTime($start_time, microtime());
			$execution_time = sprintf("%0.3f", $execution_time);
			echo ("<!-- Simple Browser Proxy took $execution_time seconds -->\n");
		}
		else
		{
			echo "Document failed to load: ".$fetcher->error."\n";
		}
	}
	if(!empty($sbp->debug) && $isDebug)
	{
		//Output any debugging information//
		echo "\n<!--\tBEGIN:\tSBP DEBUGGING INFORMATION\n================================================";
			echo "\t".$sbp->debug;
			echo "\tURL: ".$url."\n";
		echo "================================================\n\tEND:\tSBP DEBUGGING INFORMATION -->\n";
	}
	
	echo "<center>\n";
	echo "</center>";
}
?>