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nikolark committed 2015-08-12 20:17:58 +02:00
1 parent b3ac616fe8
commit 6e249f4820
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wp-includes/feed.php
+219 -115
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@@ -16,10 +16,7 @@
* Everything will be stripped of tags and characters converted, when the values
* are retrieved for use in the feeds.
*
* @package WordPress
* @subpackage Feed
* @since 1.5.1
* @uses apply_filters() Calls 'get_bloginfo_rss' hook with two parameters.
* @see get_bloginfo() For the list of possible values to display.
*
* @param string $show See get_bloginfo() for possible values.
@@ -27,7 +24,18 @@
*/
function get_bloginfo_rss($show = '') {
$info = strip_tags(get_bloginfo($show));
return apply_filters('get_bloginfo_rss', convert_chars($info), $show);
/**
* Filter the bloginfo for use in RSS feeds.
*
* @since 2.2.0
*
* @see convert_chars()
* @see get_bloginfo()
*
* @param string $info Converted string value of the blog information.
* @param string $show The type of blog information to retrieve.
*/
return apply_filters( 'get_bloginfo_rss', convert_chars( $info ), $show );
}
/**
@@ -37,16 +45,23 @@ function get_bloginfo_rss($show = '') {
* Everything will be stripped of tags and characters converted, when the values
* are retrieved for use in the feeds.
*
* @package WordPress
* @subpackage Feed
* @since 0.71
* @uses apply_filters() Calls 'bloginfo_rss' hook with two parameters.
* @see get_bloginfo() For the list of possible values to display.
*
* @param string $show See get_bloginfo() for possible values.
*/
function bloginfo_rss($show = '') {
echo apply_filters('bloginfo_rss', get_bloginfo_rss($show), $show);
/**
* Filter the bloginfo for display in RSS feeds.
*
* @since 2.1.0
*
* @see get_bloginfo()
*
* @param string $rss_container RSS container for the blog information.
* @param string $show The type of blog information to retrieve.
*/
echo apply_filters( 'bloginfo_rss', get_bloginfo_rss( $show ), $show );
}
/**
@@ -55,76 +70,100 @@ function bloginfo_rss($show = '') {
* The default feed is 'rss2', unless a plugin changes it through the
* 'default_feed' filter.
*
* @package WordPress
* @subpackage Feed
* @since 2.5
* @uses apply_filters() Calls 'default_feed' hook on the default feed string.
* @since 2.5.0
*
* @return string Default feed, or for example 'rss2', 'atom', etc.
*/
function get_default_feed() {
$default_feed = apply_filters('default_feed', 'rss2');
/**
* Filter the default feed type.
*
* @since 2.5.0
*
* @param string $feed_type Type of default feed. Possible values include 'rss2', 'atom'.
* Default 'rss2'.
*/
$default_feed = apply_filters( 'default_feed', 'rss2' );
return 'rss' == $default_feed ? 'rss2' : $default_feed;
}
/**
* Retrieve the blog title for the feed title.
*
* @package WordPress
* @subpackage Feed
* @since 2.2.0
* @uses apply_filters() Calls 'get_wp_title_rss' hook on title.
* @uses wp_title() See function for $sep parameter usage.
*
* @param string $sep Optional.How to separate the title. See wp_title() for more info.
* @param string $sep Optional. How to separate the title. See wp_title() for more info.
* @return string Error message on failure or blog title on success.
*/
function get_wp_title_rss($sep = '»') {
$title = wp_title($sep, false);
if ( is_wp_error( $title ) )
function get_wp_title_rss( $sep = '»' ) {
$title = wp_title( $sep, false );
if ( is_wp_error( $title ) ) {
return $title->get_error_message();
$title = apply_filters('get_wp_title_rss', $title);
}
if ( $title && $sep && ' ' !== substr( $title, 0, 1 ) ) {
$title = " $sep " . $title;
}
/**
* Filter the blog title for use as the feed title.
*
* @since 2.2.0
*
* @param string $title The current blog title.
* @param string $sep Separator used by wp_title().
*/
$title = apply_filters( 'get_wp_title_rss', $title, $sep );
return $title;
}
/**
* Display the blog title for display of the feed title.
*
* @package WordPress
* @subpackage Feed
* @since 2.2.0
* @uses apply_filters() Calls 'wp_title_rss' on the blog title.
* @see wp_title() $sep parameter usage.
*
* @param string $sep Optional.
*/
function wp_title_rss($sep = '»') {
echo apply_filters('wp_title_rss', get_wp_title_rss($sep));
function wp_title_rss( $sep = '»' ) {
/**
* Filter the blog title for display of the feed title.
*
* @since 2.2.0
*
* @see get_wp_title_rss()
*
* @param string $wp_title The current blog title.
* @param string $sep Separator used by wp_title().
*/
echo apply_filters( 'wp_title_rss', get_wp_title_rss( $sep ), $sep );
}
/**
* Retrieve the current post title for the feed.
*
* @package WordPress
* @subpackage Feed
* @since 2.0.0
* @uses apply_filters() Calls 'the_title_rss' on the post title.
*
* @return string Current post title.
*/
function get_the_title_rss() {
$title = get_the_title();
$title = apply_filters('the_title_rss', $title);
/**
* Filter the post title for use in a feed.
*
* @since 1.2.0
*
* @param string $title The current post title.
*/
$title = apply_filters( 'the_title_rss', $title );
return $title;
}
/**
* Display the post title in the feed.
*
* @package WordPress
* @subpackage Feed
* @since 0.71
* @uses get_the_title_rss() Used to retrieve current post title.
*/
function the_title_rss() {
echo get_the_title_rss();
@@ -133,31 +172,35 @@ function the_title_rss() {
/**
* Retrieve the post content for feeds.
*
* @package WordPress
* @subpackage Feed
* @since 2.9.0
* @uses apply_filters() Calls 'the_content_feed' on the content before processing.
* @see get_the_content()
*
* @param string $feed_type The type of feed. rss2 | atom | rss | rdf
* @return string The filtered content.
*/
function get_the_content_feed($feed_type = null) {
if ( !$feed_type )
$feed_type = get_default_feed();
$content = apply_filters('the_content', get_the_content());
/** This filter is documented in wp-includes/post-template.php */
$content = apply_filters( 'the_content', get_the_content() );
$content = str_replace(']]>', ']]>', $content);
return apply_filters('the_content_feed', $content, $feed_type);
/**
* Filter the post content for use in feeds.
*
* @since 2.9.0
*
* @param string $content The current post content.
* @param string $feed_type Type of feed. Possible values include 'rss2', 'atom'.
* Default 'rss2'.
*/
return apply_filters( 'the_content_feed', $content, $feed_type );
}
/**
* Display the post content for feeds.
*
* @package WordPress
* @subpackage Feed
* @since 2.9.0
* @uses apply_filters() Calls 'the_content_feed' on the content before processing.
* @see get_the_content()
*
* @param string $feed_type The type of feed. rss2 | atom | rss | rdf
*/
@@ -168,26 +211,34 @@ function the_content_feed($feed_type = null) {
/**
* Display the post excerpt for the feed.
*
* @package WordPress
* @subpackage Feed
* @since 0.71
* @uses apply_filters() Calls 'the_excerpt_rss' hook on the excerpt.
*/
function the_excerpt_rss() {
$output = get_the_excerpt();
echo apply_filters('the_excerpt_rss', $output);
/**
* Filter the post excerpt for a feed.
*
* @since 1.2.0
*
* @param string $output The current post excerpt.
*/
echo apply_filters( 'the_excerpt_rss', $output );
}
/**
* Display the permalink to the post for use in feeds.
*
* @package WordPress
* @subpackage Feed
* @since 2.3.0
* @uses apply_filters() Call 'the_permalink_rss' on the post permalink
*/
function the_permalink_rss() {
echo esc_url( apply_filters('the_permalink_rss', get_permalink() ));
/**
* Filter the permalink to the post for use in feeds.
*
* @since 2.3.0
*
* @param string $post_permalink The current post permalink.
*/
echo esc_url( apply_filters( 'the_permalink_rss', get_permalink() ) );
}
/**
@@ -197,14 +248,20 @@ function the_permalink_rss() {
* @return none
*/
function comments_link_feed() {
echo esc_url( get_comments_link() );
/**
* Filter the comments permalink for the current post.
*
* @since 3.6.0
*
* @param string $comment_permalink The current comment permalink with
* '#comments' appended.
*/
echo esc_url( apply_filters( 'comments_link_feed', get_comments_link() ) );
}
/**
* Display the feed GUID for the current comment.
*
* @package WordPress
* @subpackage Feed
* @since 2.5.0
*
* @param int|object $comment_id Optional comment object or id. Defaults to global comment object.
@@ -216,12 +273,10 @@ function comment_guid($comment_id = null) {
/**
* Retrieve the feed GUID for the current comment.
*
* @package WordPress
* @subpackage Feed
* @since 2.5.0
*
* @param int|object $comment_id Optional comment object or id. Defaults to global comment object.
* @return bool|string false on failure or guid for comment on success.
* @return false|string false on failure or guid for comment on success.
*/
function get_comment_guid($comment_id = null) {
$comment = get_comment($comment_id);
@@ -238,29 +293,41 @@ function get_comment_guid($comment_id = null) {
* @since 1.5.0
*/
function comment_link() {
echo esc_url( get_comment_link() );
/**
* Filter the current comment's permalink.
*
* @since 3.6.0
*
* @see get_comment_link()
*
* @param string $comment_permalink The current comment permalink.
*/
echo esc_url( apply_filters( 'comment_link', get_comment_link() ) );
}
/**
* Retrieve the current comment author for use in the feeds.
*
* @package WordPress
* @subpackage Feed
* @since 2.0.0
* @uses apply_filters() Calls 'comment_author_rss' hook on comment author.
* @uses get_comment_author()
*
* @return string Comment Author
*/
function get_comment_author_rss() {
return apply_filters('comment_author_rss', get_comment_author() );
/**
* Filter the current comment author for use in a feed.
*
* @since 1.5.0
*
* @see get_comment_author()
*
* @param string $comment_author The current comment author.
*/
return apply_filters( 'comment_author_rss', get_comment_author() );
}
/**
* Display the current comment author in the feed.
*
* @package WordPress
* @subpackage Feed
* @since 1.0.0
*/
function comment_author_rss() {
@@ -270,15 +337,18 @@ function comment_author_rss() {
/**
* Display the current comment content for use in the feeds.
*
* @package WordPress
* @subpackage Feed
* @since 1.0.0
* @uses apply_filters() Calls 'comment_text_rss' filter on comment content.
* @uses get_comment_text()
*/
function comment_text_rss() {
$comment_text = get_comment_text();
$comment_text = apply_filters('comment_text_rss', $comment_text);
/**
* Filter the current comment content for use in a feed.
*
* @since 1.5.0
*
* @param string $comment_text The content of the current comment.
*/
$comment_text = apply_filters( 'comment_text_rss', $comment_text );
echo $comment_text;
}
@@ -289,10 +359,7 @@ function comment_text_rss() {
* retrieved and have feed markup added, so that they can easily be added to the
* RSS2, Atom, or RSS1 and RSS0.91 RDF feeds.
*
* @package WordPress
* @subpackage Feed
* @since 2.1.0
* @uses apply_filters()
*
* @param string $type Optional, default is the type returned by get_default_feed().
* @return string All of the post categories for displaying in the feed.
@@ -323,19 +390,26 @@ function get_the_category_rss($type = null) {
if ( 'rdf' == $type )
$the_list .= "\t\t<dc:subject><![CDATA[$cat_name]]></dc:subject>\n";
elseif ( 'atom' == $type )
$the_list .= sprintf( '<category scheme="%1$s" term="%2$s" />', esc_attr( apply_filters( 'get_bloginfo_rss', get_bloginfo( 'url' ) ) ), esc_attr( $cat_name ) );
$the_list .= sprintf( '<category scheme="%1$s" term="%2$s" />', esc_attr( get_bloginfo_rss( 'url' ) ), esc_attr( $cat_name ) );
else
$the_list .= "\t\t<category><![CDATA[" . @html_entity_decode( $cat_name, ENT_COMPAT, get_option('blog_charset') ) . "]]></category>\n";
}
return apply_filters('the_category_rss', $the_list, $type);
/**
* Filter all of the post categories for display in a feed.
*
* @since 1.2.0
*
* @param string $the_list All of the RSS post categories.
* @param string $type Type of feed. Possible values include 'rss2', 'atom'.
* Default 'rss2'.
*/
return apply_filters( 'the_category_rss', $the_list, $type );
}
/**
* Display the post categories in the feed.
*
* @package WordPress
* @subpackage Feed
* @since 0.71
* @see get_the_category_rss() For better explanation.
*
@@ -350,8 +424,6 @@ function the_category_rss($type = null) {
*
* The two possible values are either 'xhtml' or 'html'.
*
* @package WordPress
* @subpackage Feed
* @since 2.2.0
*/
function html_type_rss() {
@@ -375,11 +447,7 @@ function html_type_rss() {
* enclosure(s) consist of enclosure HTML tag(s) with a URI and other
* attributes.
*
* @package WordPress
* @subpackage Template
* @since 1.5.0
* @uses apply_filters() Calls 'rss_enclosure' hook on rss enclosure.
* @uses get_post_custom() To get the current post enclosure metadata.
*/
function rss_enclosure() {
if ( post_password_required() )
@@ -390,11 +458,18 @@ function rss_enclosure() {
foreach ( (array) $val as $enc ) {
$enclosure = explode("\n", $enc);
//only get the the first element eg, audio/mpeg from 'audio/mpeg mpga mp2 mp3'
// only get the first element, e.g. audio/mpeg from 'audio/mpeg mpga mp2 mp3'
$t = preg_split('/[ \t]/', trim($enclosure[2]) );
$type = $t[0];
echo apply_filters('rss_enclosure', '<enclosure url="' . trim(htmlspecialchars($enclosure[0])) . '" length="' . trim($enclosure[1]) . '" type="' . $type . '" />' . "\n");
/**
* Filter the RSS enclosure HTML link tag for the current post.
*
* @since 2.2.0
*
* @param string $html_link_tag The HTML link tag with a URI and other attributes.
*/
echo apply_filters( 'rss_enclosure', '<enclosure url="' . trim( htmlspecialchars( $enclosure[0] ) ) . '" length="' . trim( $enclosure[1] ) . '" type="' . $type . '" />' . "\n" );
}
}
}
@@ -411,11 +486,7 @@ function rss_enclosure() {
* metadata field and parses the value to display the enclosure(s). The
* enclosure(s) consist of link HTML tag(s) with a URI and other attributes.
*
* @package WordPress
* @subpackage Template
* @since 2.2.0
* @uses apply_filters() Calls 'atom_enclosure' hook on atom enclosure.
* @uses get_post_custom() To get the current post enclosure metadata.
*/
function atom_enclosure() {
if ( post_password_required() )
@@ -424,8 +495,15 @@ function atom_enclosure() {
foreach ( (array) get_post_custom() as $key => $val ) {
if ($key == 'enclosure') {
foreach ( (array) $val as $enc ) {
$enclosure = split("\n", $enc);
echo apply_filters('atom_enclosure', '<link href="' . trim(htmlspecialchars($enclosure[0])) . '" rel="enclosure" length="' . trim($enclosure[1]) . '" type="' . trim($enclosure[2]) . '" />' . "\n");
$enclosure = explode("\n", $enc);
/**
* Filter the atom enclosure HTML link tag for the current post.
*
* @since 2.2.0
*
* @param string $html_link_tag The HTML link tag with a URI and other attributes.
*/
echo apply_filters( 'atom_enclosure', '<link href="' . trim( htmlspecialchars( $enclosure[0] ) ) . '" rel="enclosure" length="' . trim( $enclosure[1] ) . '" type="' . trim( $enclosure[2] ) . '" />' . "\n" );
}
}
}
@@ -443,9 +521,7 @@ function atom_enclosure() {
*
* @link http://www.atomenabled.org/developers/syndication/atom-format-spec.php#rfc.section.3.1
*
* @package WordPress
* @subpackage Feed
* @since 2.5
* @since 2.5.0
*
* @param string $data Input string
* @return array array(type, value)
@@ -481,26 +557,26 @@ function prep_atom_text_construct($data) {
*
* Generate a correct link for the atom:self element.
*
* @package WordPress
* @subpackage Feed
* @since 2.5
* @since 2.5.0
*/
function self_link() {
$host = @parse_url(home_url());
$host = $host['host'];
echo esc_url(
'http'
. ( (isset($_SERVER['https']) && $_SERVER['https'] == 'on') ? 's' : '' ) . '://'
. $host
. stripslashes($_SERVER['REQUEST_URI'])
);
/**
* Filter the current feed URL.
*
* @since 3.6.0
*
* @see set_url_scheme()
* @see wp_unslash()
*
* @param string $feed_link The link for the feed with set URL scheme.
*/
echo esc_url( apply_filters( 'self_link', set_url_scheme( 'http://' . $host['host'] . wp_unslash( $_SERVER['REQUEST_URI'] ) ) ) );
}
/**
* Return the content type for specified feed type.
*
* @package WordPress
* @subpackage Feed
* @since 2.8.0
*/
function feed_content_type( $type = '' ) {
@@ -517,31 +593,59 @@ function feed_content_type( $type = '' ) {
$content_type = ( !empty($types[$type]) ) ? $types[$type] : 'application/octet-stream';
/**
* Filter the content type for a specific feed type.
*
* @since 2.8.0
*
* @param string $content_type Content type indicating the type of data that a feed contains.
* @param string $type Type of feed. Possible values include 'rss2', 'atom'.
* Default 'rss2'.
*/
return apply_filters( 'feed_content_type', $content_type, $type );
}
/**
* Build SimplePie object based on RSS or Atom feed from URL.
*
* @since 2.8
* @since 2.8.0
*
* @param mixed $url URL of feed to retrieve. If an array of URLs, the feeds are merged
* using SimplePie's multifeed feature.
* See also {@link ​http://simplepie.org/wiki/faq/typical_multifeed_gotchas}
*
* @param string $url URL to retrieve feed
* @return WP_Error|SimplePie WP_Error object on failure or SimplePie object on success
*/
function fetch_feed($url) {
require_once (ABSPATH . WPINC . '/class-feed.php');
function fetch_feed( $url ) {
require_once( ABSPATH . WPINC . '/class-feed.php' );
$feed = new SimplePie();
$feed->set_feed_url($url);
$feed->set_cache_class('WP_Feed_Cache');
$feed->set_file_class('WP_SimplePie_File');
$feed->set_cache_duration(apply_filters('wp_feed_cache_transient_lifetime', 43200, $url));
$feed->set_sanitize_class( 'WP_SimplePie_Sanitize_KSES' );
// We must manually overwrite $feed->sanitize because SimplePie's
// constructor sets it before we have a chance to set the sanitization class
$feed->sanitize = new WP_SimplePie_Sanitize_KSES();
$feed->set_cache_class( 'WP_Feed_Cache' );
$feed->set_file_class( 'WP_SimplePie_File' );
$feed->set_feed_url( $url );
/** This filter is documented in wp-includes/class-feed.php */
$feed->set_cache_duration( apply_filters( 'wp_feed_cache_transient_lifetime', 12 * HOUR_IN_SECONDS, $url ) );
/**
* Fires just before processing the SimplePie feed object.
*
* @since 3.0.0
*
* @param object &$feed SimplePie feed object, passed by reference.
* @param mixed $url URL of feed to retrieve. If an array of URLs, the feeds are merged.
*/
do_action_ref_array( 'wp_feed_options', array( &$feed, $url ) );
$feed->init();
$feed->handle_content_type();
if ( $feed->error() )
return new WP_Error('simplepie-error', $feed->error());
return new WP_Error( 'simplepie-error', $feed->error() );
return $feed;
}