3 if ( !class_exists('SimplePie') )
4 require_once( ABSPATH . WPINC . '/class-simplepie.php' );
6 class WP_Feed_Cache extends SimplePie_Cache {
8 * Create a new SimplePie_Cache object
13 public function create($location, $filename, $extension) {
14 return new WP_Feed_Cache_Transient($location, $filename, $extension);
18 class WP_Feed_Cache_Transient {
21 public $lifetime = 43200; //Default lifetime in cache of 12 hours
23 public function __construct($location, $filename, $extension) {
24 $this->name = 'feed_' . $filename;
25 $this->mod_name = 'feed_mod_' . $filename;
27 $lifetime = $this->lifetime;
29 * Filter the transient lifetime of the feed cache.
33 * @param int $lifetime Cache duration in seconds. Default is 43200 seconds (12 hours).
34 * @param string $filename Unique identifier for the cache object.
36 $this->lifetime = apply_filters( 'wp_feed_cache_transient_lifetime', $lifetime, $filename);
39 public function save($data) {
40 if ( is_a($data, 'SimplePie') )
43 set_transient($this->name, $data, $this->lifetime);
44 set_transient($this->mod_name, time(), $this->lifetime);
48 public function load() {
49 return get_transient($this->name);
52 public function mtime() {
53 return get_transient($this->mod_name);
56 public function touch() {
57 return set_transient($this->mod_name, time(), $this->lifetime);
60 public function unlink() {
61 delete_transient($this->name);
62 delete_transient($this->mod_name);
67 class WP_SimplePie_File extends SimplePie_File {
69 public function __construct($url, $timeout = 10, $redirects = 5, $headers = null, $useragent = null, $force_fsockopen = false) {
71 $this->timeout = $timeout;
72 $this->redirects = $redirects;
73 $this->headers = $headers;
74 $this->useragent = $useragent;
76 $this->method = SIMPLEPIE_FILE_SOURCE_REMOTE;
78 if ( preg_match('/^http(s)?:\/\//i', $url) ) {
80 'timeout' => $this->timeout,
81 'redirection' => $this->redirects,
84 if ( !empty($this->headers) )
85 $args['headers'] = $this->headers;
87 if ( SIMPLEPIE_USERAGENT != $this->useragent ) //Use default WP user agent unless custom has been specified
88 $args['user-agent'] = $this->useragent;
90 $res = wp_safe_remote_request($url, $args);
92 if ( is_wp_error($res) ) {
93 $this->error = 'WP HTTP Error: ' . $res->get_error_message();
94 $this->success = false;
96 $this->headers = wp_remote_retrieve_headers( $res );
97 $this->body = wp_remote_retrieve_body( $res );
98 $this->status_code = wp_remote_retrieve_response_code( $res );
102 $this->success = false;
108 * WordPress SimplePie Sanitization Class
110 * Extension of the SimplePie_Sanitize class to use KSES, because
111 * we cannot universally count on DOMDocument being available
116 class WP_SimplePie_Sanitize_KSES extends SimplePie_Sanitize {
117 public function sanitize( $data, $type, $base = '' ) {
118 $data = trim( $data );
119 if ( $type & SIMPLEPIE_CONSTRUCT_MAYBE_HTML ) {
120 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)) {
121 $type |= SIMPLEPIE_CONSTRUCT_HTML;
124 $type |= SIMPLEPIE_CONSTRUCT_TEXT;
127 if ( $type & SIMPLEPIE_CONSTRUCT_BASE64 ) {
128 $data = base64_decode( $data );
130 if ( $type & ( SIMPLEPIE_CONSTRUCT_HTML | SIMPLEPIE_CONSTRUCT_XHTML ) ) {
131 $data = wp_kses_post( $data );
132 if ( $this->output_encoding !== 'UTF-8' ) {
133 $data = $this->registry->call( 'Misc', 'change_encoding', array( $data, 'UTF-8', $this->output_encoding ) );
137 return parent::sanitize( $data, $type, $base );