<?
// wandelt ein XML-String in ein Objekt mit entsprechender Verschachtelungs-Tiefe
// Quelle: user-contribution von php.net (leicht modifiziert)
class xml2obj
{
   var $path;
 
   function xml2obj($data, $encoding = "ISO-8859-1") {
		$data = str_replace(chr(9), "", $data);
		$data = str_replace(chr(10), "", $data);
		$data = str_replace(chr(13), "", $data);
 
		$this->path = "\$this->result";
		$this->path = "\$this";
		$this->index = 0;
 
		$xml_parser = xml_parser_create($encoding);
		xml_set_object($xml_parser, $this);
		xml_set_element_handler($xml_parser, 'startElement', 'endElement');
		xml_set_character_data_handler($xml_parser, 'characterData');
 
		xml_parse($xml_parser, $data, true);
		xml_parser_free($xml_parser);
		$this->path = null;
		$this->_rawXML = $data;
   }
 
	   function startElement($parser, $tag, $attributeList) {
		   eval("\$vars = get_object_vars(".$this->path.");");
		   $this->path .= "->".$tag;
 
		   if ($vars and array_key_exists($tag, $vars)) 
		   {
				 eval("\$data = ".$this->path.";");
					 if (is_array($data)) 
					 {
						   $index = sizeof($data);
						   $this->path .= "[".$index."]";
					 } 
					 else if (is_object($data)) 
					 {
						   eval($this->path." = array(".$this->path.");");
						   $this->path .= "[1]";
					 }
		   }
		   eval($this->path." = null;");
 
		   foreach($attributeList as $name => $value)
		   {
			   eval($this->path."->".$name." = \$value;");
		   }
 
	   }
 
   function endElement($parser, $tag) {
	   $this->path = substr($this->path, 0, strrpos($this->path, "->"));
   }
 
   function characterData($parser, $data) {
	   eval($this->path." .= '".trim($data)."';");
   }
}
 
?>

<?
header('Content-type: text/xml');
 
require_once("class/class-snoopy.php");
require_once("class/xml2obj.class.php");
 
define("BLOG_RSS_URL", "");
define("BLOG_VIDEO_URL", "");
 
// mit Snoopy das Blog-RSS laden
$snoopy = new Snoopy;	
$submit_url = BLOG_RSS_URL;	
$snoopy->fetch($submit_url);
 
// Blog-RSS in Objekt umwandeln
$xmlObj = new xml2obj($snoopy->results, "UTF-8");
 
// Podcast-Feed erstellen
show_podcastfeed_xml($xmlObj);
 
 
// Podcast-Feed erstellen
function show_podcastfeed_xml($uXmlObj)
{
	$locDateArray = array();
	echo '<?xml version="1.0" encoding="UTF-8"?>'."\n";
	?>
	<rss<?=((isset($uXmlObj->RSS->VERSION))?' version="'.$uXmlObj->RSS->VERSION.'"':'')?>>
	<channel>
		<title><?=((isset($uXmlObj->RSS->CHANNEL->TITLE))?$uXmlObj->RSS->CHANNEL->TITLE:'')?></title>
		<link><?=((isset($uXmlObj->RSS->CHANNEL->LINK))?$uXmlObj->RSS->CHANNEL->LINK:'')?></link>
		<description><?=((isset($uXmlObj->RSS->CHANNEL->DESCRIPTION))?$uXmlObj->RSS->CHANNEL->DESCRIPTION:'')?></description>	
		<language><?=((isset($uXmlObj->RSS->CHANNEL->LANGUAGE))?$uXmlObj->RSS->CHANNEL->LANGUAGE:'')?></language>
		<?
		if (isset($uXmlObj->RSS->CHANNEL->ITEM))
		{
			foreach ($uXmlObj->RSS->CHANNEL->ITEM as $podcast)
			{
				$locText = $podcast->DESCRIPTION;
				$locLink = $podcast->LINK;
				$locLinkArray = explode("/", $locLink);
 
				// Datum des Postings für das Videodatum ermitteln
				$locDate = $locLinkArray[3]."-".$locLinkArray[4]."-".$locLinkArray[5];
				?>
				<item>
					<title><?=$podcast->TITLE?></title>
					<description><![CDATA[<?=html_entity_decode($locText, ENT_QUOTES, "UTF-8")?>]]></description>
					<link><?=$locLink?></link>
					<? 
					if (!in_array($locDate, $locDateArray)) { 						
						$locDateArray[] = $locDate;
						?>
						<enclosure url="<?=BLOG_VIDEO_URL.$locDate?>.mov" length="12" type="video/quicktime"/>
					<? } ?>
				</item>
				<?
			}
		}
		?>
	</channel>
	</rss>	
	<?
}
 
?>