* License: GPLv2
 * Description: Adds sitemap.xml on request.
 * Documentation:
 */
class XMLSitemap extends Extension {
	public function onPageRequest(PageRequestEvent $event) {
		if($event->page_matches("sitemap.xml")) {
			$images = Image::find_images(0, 50, array());
			$this->do_xml($images);
		}
	}
	
	private function do_xml(/*array(Image)*/ $images) {
		global $page;
		$page->set_mode("data");
		$page->set_type("application/xml");
		$data = "";
		foreach($images as $image) {
			$link = make_http(make_link("post/view/{$image->id}"));
			$posted = date("Y-m-d", $image->posted_timestamp);
			
			$data .= "
			
			$link
			$posted
			monthly
			0.8
			
			";
		}
		$base_href = make_http(make_link("post/list"));
		$xml = "<"."?xml version=\"1.0\" encoding=\"utf-8\"?".">
				
				
				$base_href
				2009-01-01
				monthly
				1
				
				$data
				
				";
		$page->set_data($xml);
	}
}
?>