1 <?php |
1 <?php |
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2 /** |
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3 * Feed API |
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4 * |
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5 * @package WordPress |
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6 * @subpackage Feed |
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7 */ |
2 |
8 |
3 if ( !class_exists('SimplePie') ) |
9 _deprecated_file( basename( __FILE__ ), '4.7.0', 'fetch_feed()' ); |
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10 |
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11 if ( ! class_exists( 'SimplePie', false ) ) { |
4 require_once( ABSPATH . WPINC . '/class-simplepie.php' ); |
12 require_once( ABSPATH . WPINC . '/class-simplepie.php' ); |
5 |
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6 class WP_Feed_Cache extends SimplePie_Cache { |
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7 /** |
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8 * Create a new SimplePie_Cache object |
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9 * |
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10 * @static |
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11 * @access public |
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12 */ |
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13 public function create($location, $filename, $extension) { |
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14 return new WP_Feed_Cache_Transient($location, $filename, $extension); |
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15 } |
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16 } |
13 } |
17 |
14 |
18 class WP_Feed_Cache_Transient { |
15 require_once( ABSPATH . WPINC . '/class-wp-feed-cache.php' ); |
19 public $name; |
16 require_once( ABSPATH . WPINC . '/class-wp-feed-cache-transient.php' ); |
20 public $mod_name; |
17 require_once( ABSPATH . WPINC . '/class-wp-simplepie-file.php' ); |
21 public $lifetime = 43200; //Default lifetime in cache of 12 hours |
18 require_once( ABSPATH . WPINC . '/class-wp-simplepie-sanitize-kses.php' ); |
22 |
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23 public function __construct($location, $filename, $extension) { |
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24 $this->name = 'feed_' . $filename; |
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25 $this->mod_name = 'feed_mod_' . $filename; |
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26 |
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27 $lifetime = $this->lifetime; |
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28 /** |
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29 * Filter the transient lifetime of the feed cache. |
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30 * |
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31 * @since 2.8.0 |
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32 * |
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33 * @param int $lifetime Cache duration in seconds. Default is 43200 seconds (12 hours). |
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34 * @param string $filename Unique identifier for the cache object. |
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35 */ |
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36 $this->lifetime = apply_filters( 'wp_feed_cache_transient_lifetime', $lifetime, $filename); |
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37 } |
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38 |
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39 public function save($data) { |
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40 if ( $data instanceof SimplePie ) { |
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41 $data = $data->data; |
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42 } |
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43 |
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44 set_transient($this->name, $data, $this->lifetime); |
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45 set_transient($this->mod_name, time(), $this->lifetime); |
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46 return true; |
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47 } |
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48 |
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49 public function load() { |
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50 return get_transient($this->name); |
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51 } |
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52 |
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53 public function mtime() { |
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54 return get_transient($this->mod_name); |
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55 } |
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56 |
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57 public function touch() { |
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58 return set_transient($this->mod_name, time(), $this->lifetime); |
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59 } |
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60 |
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61 public function unlink() { |
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62 delete_transient($this->name); |
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63 delete_transient($this->mod_name); |
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64 return true; |
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65 } |
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66 } |
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67 |
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68 class WP_SimplePie_File extends SimplePie_File { |
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69 |
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70 public function __construct($url, $timeout = 10, $redirects = 5, $headers = null, $useragent = null, $force_fsockopen = false) { |
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71 $this->url = $url; |
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72 $this->timeout = $timeout; |
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73 $this->redirects = $redirects; |
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74 $this->headers = $headers; |
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75 $this->useragent = $useragent; |
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76 |
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77 $this->method = SIMPLEPIE_FILE_SOURCE_REMOTE; |
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78 |
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79 if ( preg_match('/^http(s)?:\/\//i', $url) ) { |
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80 $args = array( |
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81 'timeout' => $this->timeout, |
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82 'redirection' => $this->redirects, |
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83 ); |
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84 |
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85 if ( !empty($this->headers) ) |
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86 $args['headers'] = $this->headers; |
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87 |
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88 if ( SIMPLEPIE_USERAGENT != $this->useragent ) //Use default WP user agent unless custom has been specified |
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89 $args['user-agent'] = $this->useragent; |
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90 |
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91 $res = wp_safe_remote_request($url, $args); |
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92 |
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93 if ( is_wp_error($res) ) { |
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94 $this->error = 'WP HTTP Error: ' . $res->get_error_message(); |
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95 $this->success = false; |
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96 } else { |
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97 $this->headers = wp_remote_retrieve_headers( $res ); |
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98 $this->body = wp_remote_retrieve_body( $res ); |
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99 $this->status_code = wp_remote_retrieve_response_code( $res ); |
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100 } |
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101 } else { |
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102 $this->error = ''; |
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103 $this->success = false; |
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104 } |
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105 } |
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106 } |
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107 |
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108 /** |
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109 * WordPress SimplePie Sanitization Class |
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110 * |
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111 * Extension of the SimplePie_Sanitize class to use KSES, because |
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112 * we cannot universally count on DOMDocument being available |
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113 * |
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114 * @package WordPress |
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115 * @since 3.5.0 |
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116 */ |
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117 class WP_SimplePie_Sanitize_KSES extends SimplePie_Sanitize { |
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118 public function sanitize( $data, $type, $base = '' ) { |
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119 $data = trim( $data ); |
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120 if ( $type & SIMPLEPIE_CONSTRUCT_MAYBE_HTML ) { |
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121 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)) { |
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122 $type |= SIMPLEPIE_CONSTRUCT_HTML; |
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123 } |
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124 else { |
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125 $type |= SIMPLEPIE_CONSTRUCT_TEXT; |
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126 } |
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127 } |
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128 if ( $type & SIMPLEPIE_CONSTRUCT_BASE64 ) { |
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129 $data = base64_decode( $data ); |
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130 } |
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131 if ( $type & ( SIMPLEPIE_CONSTRUCT_HTML | SIMPLEPIE_CONSTRUCT_XHTML ) ) { |
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132 $data = wp_kses_post( $data ); |
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133 if ( $this->output_encoding !== 'UTF-8' ) { |
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134 $data = $this->registry->call( 'Misc', 'change_encoding', array( $data, 'UTF-8', $this->output_encoding ) ); |
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135 } |
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136 return $data; |
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137 } else { |
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138 return parent::sanitize( $data, $type, $base ); |
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139 } |
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140 } |
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141 } |
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