<?php
/**
 * RSSCreator10 is a FeedCreator that implements RDF Site Summary (RSS) 1.0.
 *
 * @see http://www.purl.org/rss/1.0/
 * @since 1.3
 * @author Kai Blankenhorn <hide@address.com>
 */
class RSS10 extends FeedCreator {

	/**
	 * Builds the RSS feed's text. The feed will be compliant to RDF Site Summary (RSS) 1.0.
	 * The feed will contain all items previously added in the same order.
	 * @return	string	the feed's complete text
	 */
	function createFeed() {
		$feed = "<?xml version=\"1.0\" encoding=\"{$this->encoding}\"?>\n";
		$feed.= $this->_createGeneratorComment();
		if ($this->cssStyleSheet=="") {
			$cssStyleSheet = "http://www.w3.org/2000/08/w3c-synd/style.css";
		}
		$feed.= $this->_createStylesheetReferences();
		$feed.= "<rdf:RDF\n";
		$feed.= "	xmlns=\"http://purl.org/rss/1.0/\"\n";
		$feed.= "	xmlns:rdf=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\"\n";
		$feed.= "	xmlns:slash=\"http://purl.org/rss/1.0/modules/slash/\"\n";
		$feed.= "	xmlns:dc=\"http://purl.org/dc/elements/1.1/\">\n";
		$feed.= "	<channel rdf:about=\"{$this->syndicationURL}\">\n";
		$feed.= "		<title>".$this->htmlspecialchars($this->title)."</title>\n";
		$feed.= "		<description>".$this->htmlspecialchars($this->description)."</description>\n";
		$feed.= "		<link>{$this->link}</link>\n";
		if (!empty($this->image)) {
			$feed.= "		<image rdf:resource=\"{$this->image->url}\" />\n";
		}
		$now = new FeedDate();
		$feed.= "		<dc:date>".$this->htmlspecialchars($now->iso8601())."</dc:date>\n";
		$feed.= "		<items>\n";
		$feed.= "			<rdf:Seq>\n";
		for ($i=0;$i<count($this->items);$i++) {
			$feed.= "				<rdf:li rdf:resource=\"".$this->htmlspecialchars($this->items[$i]->link)."\"/>\n";
		}
		$feed.= "			</rdf:Seq>\n";
		$feed.= "		</items>\n";
		$feed.= "	</channel>\n";
		if (!empty($this->image)) {
			$feed.= "	<image rdf:about=\"{$this->image->url}\">\n";
			$feed.= "		<title>".$this->htmlspecialchars($this->image->title)."</title>\n";
			$feed.= "		<link>{$this->image->link}</link>\n";
			$feed.= "		<url>{$this->image->url}</url>\n";
			$feed.= "	</image>\n";
		}
		$feed.= $this->_createAdditionalElements($this->additionalElements, "	");

		for ($i=0;$i<count($this->items);$i++) {
			$feed.= "	<item rdf:about=\"".$this->htmlspecialchars($this->items[$i]->link)."\">\n";
			$feed.= "		<dc:format>text/html</dc:format>\n";
			if ($this->items[$i]->date!=null) {
				$itemDate = new FeedDate($this->items[$i]->date);
				$feed.= "		<dc:date>".$this->htmlspecialchars($itemDate->iso8601())."</dc:date>\n";
			}
			if ($this->items[$i]->source!="") {
				$feed.= "		<dc:source>".$this->htmlspecialchars($this->items[$i]->source)."</dc:source>\n";
			}
			if ($this->items[$i]->author!="") {
				$feed.= "		<dc:creator>".$this->htmlspecialchars($this->items[$i]->author)."</dc:creator>\n";
			}
			$feed.= "		<title>".$this->htmlspecialchars(strip_tags(strtr($this->items[$i]->title,"\n\r","  ")))."</title>\n";
			$feed.= "		<link>".$this->htmlspecialchars($this->items[$i]->link)."</link>\n";
			$feed.= "		<description>".$this->htmlspecialchars($this->items[$i]->description)."</description>\n";
			$feed.= $this->_createAdditionalElements($this->items[$i]->additionalElements, "		");

			// added by Joseph LeBlanc, hide@address.com

			if (count($this->items[$i]->enclosures)) {
				foreach($this->items[$i]->enclosures as $enc) {
					$feed.= "			<enclosure url=\"{$enc['url']}\" length=\"{$enc['length']}\" type=\"{$enc['type']}\" />";
				}
			}

			// end add, Joseph LeBlanc

			$feed.= "	</item>\n";
		}
		$feed.= "</rdf:RDF>\n";
		return $feed;
	}
}

?>