document_title_separator' ) );
}
return apply_filters( 'get_wp_title_rss', wp_get_document_title(), $deprecated );
}
function wp_title_rss( $deprecated = '–' ) {
if ( '–' !== $deprecated ) {
/* translators: %s: 'document_title_separator' filter name. */
_deprecated_argument( __FUNCTION__, '4.4.0', sprintf( __( 'Use the %s filter instead.' ), 'document_title_separator' ) );
}
echo apply_filters( 'wp_title_rss', get_wp_title_rss(), $deprecated );
}
function get_the_title_rss( $post = 0 ) {
$title = get_the_title( $post );
return apply_filters( 'the_title_rss', $title );
}
function the_title_rss() {
echo get_the_title_rss();
}
function get_the_content_feed( $feed_type = null ) {
if ( ! $feed_type ) {
$feed_type = get_default_feed();
}
$content = apply_filters( 'the_content', get_the_content() );
$content = str_replace( ']]>', ']]>', $content );
return apply_filters( 'the_content_feed', $content, $feed_type );
}
function the_content_feed( $feed_type = null ) {
echo get_the_content_feed( $feed_type );
}
function the_excerpt_rss() {
$output = get_the_excerpt();
echo apply_filters( 'the_excerpt_rss', $output );
}
function the_permalink_rss() {
echo esc_url( apply_filters( 'the_permalink_rss', get_permalink() ) );
}
function comments_link_feed() {
echo esc_url( apply_filters( 'comments_link_feed', get_comments_link() ) );
}
function comment_guid( $comment_id = null ) {
echo esc_url( get_comment_guid( $comment_id ) );
}
function get_comment_guid( $comment_id = null ) {
$comment = get_comment( $comment_id );
if ( ! is_object( $comment ) ) {
return false;
}
return get_the_guid( $comment->comment_post_ID ) . '#comment-' . $comment->comment_ID;
}
function comment_link( $comment = null ) {
echo esc_url( apply_filters( 'comment_link', get_comment_link( $comment ) ) );
}
function get_comment_author_rss() {
return apply_filters( 'comment_author_rss', get_comment_author() );
}
function comment_author_rss() {
echo get_comment_author_rss();
}
function comment_text_rss() {
$comment_text = get_comment_text();
$comment_text = apply_filters( 'comment_text_rss', $comment_text );
echo $comment_text;
}
function get_the_category_rss( $type = null ) {
if ( empty( $type ) ) {
$type = get_default_feed();
}
$categories = get_the_category();
$tags = get_the_tags();
$the_list = '';
$cat_names = array();
$filter = 'rss';
if ( 'atom' === $type ) {
$filter = 'raw';
}
if ( ! empty( $categories ) ) {
foreach ( (array) $categories as $category ) {
$cat_names[] = sanitize_term_field( 'name', $category->name, $category->term_id, 'category', $filter );
}
}
if ( ! empty( $tags ) ) {
foreach ( (array) $tags as $tag ) {
$cat_names[] = sanitize_term_field( 'name', $tag->name, $tag->term_id, 'post_tag', $filter );
}
}
$cat_names = array_unique( $cat_names );
foreach ( $cat_names as $cat_name ) {
if ( 'rdf' === $type ) {
$the_list .= "\t\t\n";
} elseif ( 'atom' === $type ) {
$the_list .= sprintf( '', esc_attr( get_bloginfo_rss( 'url' ) ), esc_attr( $cat_name ) );
} else {
$the_list .= "\t\t\n";
}
}
return apply_filters( 'the_category_rss', $the_list, $type );
}
function the_category_rss( $type = null ) {
echo get_the_category_rss( $type );
}
function html_type_rss() {
$type = get_bloginfo( 'html_type' );
if ( str_contains( $type, 'xhtml' ) ) {
$type = 'xhtml';
} else {
$type = 'html';
}
echo $type;
}
function rss_enclosure() {
if ( post_password_required() ) {
return;
}
foreach ( (array) get_post_custom() as $key => $val ) {
if ( 'enclosure' === $key ) {
foreach ( (array) $val as $enc ) {
$enclosure = explode( "\n", $enc );
if ( count( $enclosure ) < 3 ) {
continue;
}
// 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', '' . "\n" );
}
}
}
}
function atom_enclosure() {
if ( post_password_required() ) {
return;
}
foreach ( (array) get_post_custom() as $key => $val ) {
if ( 'enclosure' === $key ) {
foreach ( (array) $val as $enc ) {
$enclosure = explode( "\n", $enc );
$url = '';
$type = '';
$length = 0;
$mimes = get_allowed_mime_types();
// Parse URL.
if ( isset( $enclosure[0] ) && is_string( $enclosure[0] ) ) {
$url = trim( $enclosure[0] );
}
// Parse length and type.
for ( $i = 1; $i <= 2; $i++ ) {
if ( isset( $enclosure[ $i ] ) ) {
if ( is_numeric( $enclosure[ $i ] ) ) {
$length = trim( $enclosure[ $i ] );
} elseif ( in_array( $enclosure[ $i ], $mimes, true ) ) {
$type = trim( $enclosure[ $i ] );
}
}
}
$html_link_tag = sprintf(
"\n",
esc_url( $url ),
esc_attr( $length ),
esc_attr( $type )
);
echo apply_filters( 'atom_enclosure', $html_link_tag );
}
}
}
}
function prep_atom_text_construct( $data ) {
if ( ! str_contains( $data, '<' ) && ! str_contains( $data, '&' ) ) {
return array( 'text', $data );
}
if ( ! function_exists( 'xml_parser_create' ) ) {
wp_trigger_error( '', __( "PHP's XML extension is not available. Please contact your hosting provider to enable PHP's XML extension." ) );
return array( 'html', "" );
}
$parser = xml_parser_create();
xml_parse( $parser, '' . $data . '
', true );
$code = xml_get_error_code( $parser );
xml_parser_free( $parser );
unset( $parser );
if ( ! $code ) {
if ( ! str_contains( $data, '<' ) ) {
return array( 'text', $data );
} else {
$data = "$data
";
return array( 'xhtml', $data );
}
}
if ( ! str_contains( $data, ']]>' ) ) {
return array( 'html', "" );
} else {
return array( 'html', htmlspecialchars( $data ) );
}
}
function atom_site_icon() {
$url = get_site_icon_url( 32 );
if ( $url ) {
echo '' . convert_chars( $url ) . "\n";
}
}
function rss2_site_icon() {
$rss_title = get_wp_title_rss();
if ( empty( $rss_title ) ) {
$rss_title = get_bloginfo_rss( 'name' );
}
$url = get_site_icon_url( 32 );
if ( $url ) {
echo '
' . convert_chars( $url ) . '
' . $rss_title . '
' . get_bloginfo_rss( 'url' ) . '
32
32
' . "\n";
}
}
function get_self_link() {
$parsed = parse_url( home_url() );
$domain = $parsed['host'];
if ( isset( $parsed['port'] ) ) {
$domain .= ':' . $parsed['port'];
}
return set_url_scheme( 'http://' . $domain . wp_unslash( $_SERVER['REQUEST_URI'] ) );
}
function self_link() {
echo esc_url( apply_filters( 'self_link', get_self_link() ) );
}
function get_feed_build_date( $format ) {
global $wp_query;
$datetime = false;
$max_modified_time = false;
$utc = new DateTimeZone( 'UTC' );
if ( ! empty( $wp_query ) && $wp_query->have_posts() ) {
// Extract the post modified times from the posts.
$modified_times = wp_list_pluck( $wp_query->posts, 'post_modified_gmt' );
// If this is a comment feed, check those objects too.
if ( $wp_query->is_comment_feed() && $wp_query->comment_count ) {
// Extract the comment modified times from the comments.
$comment_times = wp_list_pluck( $wp_query->comments, 'comment_date_gmt' );
// Add the comment times to the post times for comparison.
$modified_times = array_merge( $modified_times, $comment_times );
}
// Determine the maximum modified time.
$datetime = date_create_immutable_from_format( 'Y-m-d H:i:s', max( $modified_times ), $utc );
}
if ( false === $datetime ) {
// Fall back to last time any post was modified or published.
$datetime = date_create_immutable_from_format( 'Y-m-d H:i:s', get_lastpostmodified( 'GMT' ), $utc );
}
if ( false !== $datetime ) {
$max_modified_time = $datetime->format( $format );
}
return apply_filters( 'get_feed_build_date', $max_modified_time, $format );
}
function feed_content_type( $type = '' ) {
if ( empty( $type ) ) {
$type = get_default_feed();
}
$types = array(
'rss' => 'application/rss+xml',
'rss2' => 'application/rss+xml',
'rss-http' => 'text/xml',
'atom' => 'application/atom+xml',
'rdf' => 'application/rdf+xml',
);
$content_type = ( ! empty( $types[ $type ] ) ) ? $types[ $type ] : 'application/octet-stream';
return apply_filters( 'feed_content_type', $content_type, $type );
}
function fetch_feed( $url ) {
if ( ! class_exists( 'SimplePie\SimplePie', false ) ) {
require_once ABSPATH . WPINC . '/class-simplepie.php';
}
require_once ABSPATH . WPINC . '/class-wp-feed-cache-transient.php';
require_once ABSPATH . WPINC . '/class-wp-simplepie-file.php';
require_once ABSPATH . WPINC . '/class-wp-simplepie-sanitize-kses.php';
$feed = new SimplePie\SimplePie();
$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();
// Register the cache handler using the recommended method for SimplePie 1.3 or later.
if ( method_exists( 'SimplePie_Cache', 'register' ) ) {
SimplePie_Cache::register( 'wp_transient', 'WP_Feed_Cache_Transient' );
$feed->set_cache_location( 'wp_transient' );
} else {
// Back-compat for SimplePie 1.2.x.
require_once ABSPATH . WPINC . '/class-wp-feed-cache.php';
$feed->set_cache_class( 'WP_Feed_Cache' );
}
$feed->set_file_class( 'WP_SimplePie_File' );
$feed->set_feed_url( $url );
$feed->set_cache_duration( apply_filters( 'wp_feed_cache_transient_lifetime', 12 * HOUR_IN_SECONDS, $url ) );
do_action_ref_array( 'wp_feed_options', array( &$feed, $url ) );
$feed->init();
$feed->set_output_encoding( get_bloginfo( 'charset' ) );
if ( $feed->error() ) {
return new WP_Error( 'simplepie-error', $feed->error() );
}
return $feed;
}