--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-includes/class-feed.php	Wed Nov 06 03:21:17 2013 +0000
@@ -0,0 +1,140 @@
+<?php
+
+if ( !class_exists('SimplePie') )
+	require_once( ABSPATH . WPINC . '/class-simplepie.php' );
+
+class WP_Feed_Cache extends SimplePie_Cache {
+	/**
+	 * Create a new SimplePie_Cache object
+	 *
+	 * @static
+	 * @access public
+	 */
+	function create($location, $filename, $extension) {
+		return new WP_Feed_Cache_Transient($location, $filename, $extension);
+	}
+}
+
+class WP_Feed_Cache_Transient {
+	var $name;
+	var $mod_name;
+	var $lifetime = 43200; //Default lifetime in cache of 12 hours
+
+	function __construct($location, $filename, $extension) {
+		$this->name = 'feed_' . $filename;
+		$this->mod_name = 'feed_mod_' . $filename;
+
+		$lifetime = $this->lifetime;
+		/**
+		 * Filter the transient lifetime of the feed cache.
+		 *
+		 * @since 2.8.0
+		 *
+		 * @param int    $lifetime Cache duration in seconds. Default is 43200 seconds (12 hours).
+		 * @param string $filename Unique identifier for the cache object.
+		 */
+		$this->lifetime = apply_filters( 'wp_feed_cache_transient_lifetime', $lifetime, $filename);
+	}
+
+	function save($data) {
+		if ( is_a($data, 'SimplePie') )
+			$data = $data->data;
+
+		set_transient($this->name, $data, $this->lifetime);
+		set_transient($this->mod_name, time(), $this->lifetime);
+		return true;
+	}
+
+	function load() {
+		return get_transient($this->name);
+	}
+
+	function mtime() {
+		return get_transient($this->mod_name);
+	}
+
+	function touch() {
+		return set_transient($this->mod_name, time(), $this->lifetime);
+	}
+
+	function unlink() {
+		delete_transient($this->name);
+		delete_transient($this->mod_name);
+		return true;
+	}
+}
+
+class WP_SimplePie_File extends SimplePie_File {
+
+	function __construct($url, $timeout = 10, $redirects = 5, $headers = null, $useragent = null, $force_fsockopen = false) {
+		$this->url = $url;
+		$this->timeout = $timeout;
+		$this->redirects = $redirects;
+		$this->headers = $headers;
+		$this->useragent = $useragent;
+
+		$this->method = SIMPLEPIE_FILE_SOURCE_REMOTE;
+
+		if ( preg_match('/^http(s)?:\/\//i', $url) ) {
+			$args = array(
+				'timeout' => $this->timeout,
+				'redirection' => $this->redirects,
+			);
+
+			if ( !empty($this->headers) )
+				$args['headers'] = $this->headers;
+
+			if ( SIMPLEPIE_USERAGENT != $this->useragent ) //Use default WP user agent unless custom has been specified
+				$args['user-agent'] = $this->useragent;
+
+			$res = wp_safe_remote_request($url, $args);
+
+			if ( is_wp_error($res) ) {
+				$this->error = 'WP HTTP Error: ' . $res->get_error_message();
+				$this->success = false;
+			} else {
+				$this->headers = wp_remote_retrieve_headers( $res );
+				$this->body = wp_remote_retrieve_body( $res );
+				$this->status_code = wp_remote_retrieve_response_code( $res );
+			}
+		} else {
+			$this->error = '';
+			$this->success = false;
+		}
+	}
+}
+
+/**
+ * WordPress SimplePie Sanitization Class
+ *
+ * Extension of the SimplePie_Sanitize class to use KSES, because
+ * we cannot universally count on DOMDocument being available
+ *
+ * @package WordPress
+ * @since 3.5.0
+ */
+class WP_SimplePie_Sanitize_KSES extends SimplePie_Sanitize {
+	public function sanitize( $data, $type, $base = '' ) {
+		$data = trim( $data );
+		if ( $type & SIMPLEPIE_CONSTRUCT_MAYBE_HTML ) {
+			if (preg_match('/(&(#(x[0-9a-fA-F]+|[0-9]+)|[a-zA-Z0-9]+)|<\/[A-Za-z][^\x09\x0A\x0B\x0C\x0D\x20\x2F\x3E]*' . SIMPLEPIE_PCRE_HTML_ATTRIBUTE . '>)/', $data)) {
+				$type |= SIMPLEPIE_CONSTRUCT_HTML;
+			}
+			else {
+				$type |= SIMPLEPIE_CONSTRUCT_TEXT;
+			}
+		}
+		if ( $type & SIMPLEPIE_CONSTRUCT_BASE64 ) {
+			$data = base64_decode( $data );
+		}
+		if ( $type & ( SIMPLEPIE_CONSTRUCT_HTML | SIMPLEPIE_CONSTRUCT_XHTML ) ) {
+			$data = wp_kses_post( $data );
+			if ( $this->output_encoding !== 'UTF-8' ) {
+				$data = $this->registry->call( 'Misc', 'change_encoding', array( $data, 'UTF-8', $this->output_encoding ) );
+			}
+			return $data;
+		} else {
+			return parent::sanitize( $data, $type, $base );
+		}
+	}
+}