indexrssfilter.php

<?php

$url = "http://index.hu/tech/rss/default/";
if (array_key_exists("url", $_GET)) {
	if (strpos($_GET["url"], "http://") === 0) {
		$url = $_GET["url"];
	}
}

$file = file_get_contents($url);

header("Content-Type: application/rss+xml");

$separator = "\r\n";
$line = strtok($file, $separator);

$gather_item = false;
$item = "";
$creator = "";

while ($line !== false) {
	
	if (strpos($line,"<item>") !== false) {
		$gather_item = true;
	}
	
	if (strpos($line,"</item>") !== false) {
		$gather_item = false;
		
		if (strpos($creator, "Tóth Balázs") == false &&
		    strpos($creator, "lica") == false) {
			print $item . $line . "\n";
		}

		$item = "";
		$creator = "";

	} else {
		if ($gather_item) {
			$item = $item . $line . "\n";
			
			if (strpos($line, "<dc:creator>") !== false) {
				$parts = explode("<dc:creator>", $line);
				$parts = explode("</dc:creator>", $parts[1]);
				$creator = $parts[0];
			}
			
		} else {
			print $line . "\n";
		}
	}	
	
	$line = strtok($separator);
}

?>