wp-includes/class-feed.php

   1 <?php
   2
   3 if ( !class_exists('SimplePie') )
   4         require_once (ABSPATH . WPINC . '/class-simplepie.php');
   5
   6 class WP_Feed_Cache extends SimplePie_Cache {
   7         /**
   8          * Don't call the constructor. Please.
   9          *
  10          * @access private
  11          */
  12         function WP_Feed_Cache() {
  13                 trigger_error('Please call SimplePie_Cache::create() instead of the constructor', E_USER_ERROR);
  14         }
  15
  16         /**
  17          * Create a new SimplePie_Cache object
  18          *
  19          * @static
  20          * @access public
  21          */
  22         function create($location, $filename, $extension) {
  23                 return new WP_Feed_Cache_Transient($location, $filename, $extension);
  24         }
  25 }
  26
  27 class WP_Feed_Cache_Transient {
  28         var $name;
  29         var $mod_name;
  30         var $lifetime = 43200; //Default lifetime in cache of 12 hours
  31
  32         function WP_Feed_Cache_Transient($location, $filename, $extension) {
  33                 $this->name = 'feed_' . $filename;
  34                 $this->mod_name = 'feed_mod_' . $filename;
  35                 $this->lifetime = apply_filters('wp_feed_cache_transient_lifetime', $this->lifetime, $filename);
  36         }
  37
  38         function save($data) {
  39                 if ( is_a($data, 'SimplePie') )
  40                         $data = $data->data;
  41
  42                 set_transient($this->name, $data, $this->lifetime);
  43                 set_transient($this->mod_name, time(), $this->lifetime);
  44                 return true;
  45         }
  46
  47         function load() {
  48                 return get_transient($this->name);
  49         }
  50
  51         function mtime() {
  52                 return get_transient($this->mod_name);
  53         }
  54
  55         function touch() {
  56                 return set_transient($this->mod_name, time(), $this->lifetime);
  57         }
  58
  59         function unlink() {
  60                 delete_transient($this->name);
  61                 delete_transient($this->mod_name);
  62                 return true;
  63         }
  64 }
  65
  66 class WP_SimplePie_File extends SimplePie_File {
  67
  68         function WP_SimplePie_File($url, $timeout = 10, $redirects = 5, $headers = null, $useragent = null, $force_fsockopen = false) {
  69                 $this->url = $url;
  70                 $this->timeout = $timeout;
  71                 $this->redirects = $redirects;
  72                 $this->headers = $headers;
  73                 $this->useragent = $useragent;
  74
  75                 $this->method = SIMPLEPIE_FILE_SOURCE_REMOTE;
  76
  77                 if ( preg_match('/^http(s)?:\/\//i', $url) ) {
  78                         $args = array( 'timeout' => $this->timeout, 'redirection' => $this->redirects);
  79
  80                         if ( !empty($this->headers) )
  81                                 $args['headers'] = $this->headers;
  82
  83                         if ( SIMPLEPIE_USERAGENT != $this->useragent ) //Use default WP user agent unless custom has been specified
  84                                 $args['user-agent'] = $this->useragent;
  85
  86                         $res = wp_remote_request($url, $args);
  87
  88                         if ( is_wp_error($res) ) {
  89                                 $this->error = 'WP HTTP Error: ' . $res->get_error_message();
  90                                 $this->success = false;
  91                         } else {
  92                                 $this->headers = $res['headers'];
  93                                 $this->body = $res['body'];
  94                                 $this->status_code = $res['response']['code'];
  95                         }
  96                 } else {
  97                         if ( ! $this->body = file_get_contents($url) ) {
  98                                 $this->error = 'file_get_contents could not read the file';
  99                                 $this->success = false;
 100                         }
 101                 }
 102         }
 103 }