get_error_message(); $title = apply_filters('get_wp_title_rss', $title); 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)); } /** * 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); 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(); } /** * Display the post content for the feed. * * For encoding the html or the $encode_html parameter, there are three possible * values. '0' will make urls footnotes and use make_url_footnote(). '1' will * encode special characters and automatically display all of the content. The * value of '2' will strip all HTML tags from the content. * * Also note that you cannot set the amount of words and not set the html * encoding. If that is the case, then the html encoding will default to 2, * which will strip all HTML tags. * * To restrict the amount of words of the content, you can use the cut * parameter. If the content is less than the amount, then there won't be any * dots added to the end. If there is content left over, then dots will be added * and the rest of the content will be removed. * * @package WordPress * @subpackage Feed * @since 0.71 * @uses apply_filters() Calls 'the_content_rss' on the content before processing. * @see get_the_content() For the $more_link_text, $stripteaser, and $more_file * parameters. * * @param string $more_link_text Optional. Text to display when more content is available but not displayed. * @param int|bool $stripteaser Optional. Default is 0. * @param string $more_file Optional. * @param int $cut Optional. Amount of words to keep for the content. * @param int $encode_html Optional. How to encode the content. */ function the_content_rss($more_link_text='(more...)', $stripteaser=0, $more_file='', $cut = 0, $encode_html = 0) { $content = get_the_content($more_link_text, $stripteaser, $more_file); $content = apply_filters('the_content_rss', $content); if ( $cut && !$encode_html ) $encode_html = 2; if ( 1== $encode_html ) { $content = wp_specialchars($content); $cut = 0; } elseif ( 0 == $encode_html ) { $content = make_url_footnote($content); } elseif ( 2 == $encode_html ) { $content = strip_tags($content); } if ( $cut ) { $blah = explode(' ', $content); if ( count($blah) > $cut ) { $k = $cut; $use_dotdotdot = 1; } else { $k = count($blah); $use_dotdotdot = 0; } /** @todo Check performance, might be faster to use array slice instead. */ for ( $i=0; $i<$k; $i++ ) $excerpt .= $blah[$i].' '; $excerpt .= ($use_dotdotdot) ? '...' : ''; $content = $excerpt; } $content = str_replace(']]>', ']]>', $content); echo $content; } /** * 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); } /** * 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 apply_filters('the_permalink_rss', get_permalink()); } /** * Display the feed GUID for the current comment. * * @package WordPress * @subpackage Feed * @since unknown * * @param int|object $comment_id Optional comment object or id. Defaults to global comment object. */ function comment_guid($comment_id = null) { echo get_comment_guid($comment_id); } /** * Retrieve the feed GUID for the current comment. * * @package WordPress * @subpackage Feed * @since unknown * * @param int|object $comment_id Optional comment object or id. Defaults to global comment object. * @return bool|string false on failure or guid for comment on success. */ function get_comment_guid($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; } /** * Display the link to the comments. * * @since 1.5.0 */ function comment_link() { echo clean_url( 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() ); } /** * Display the current comment author in the feed. * * @package WordPress * @subpackage Feed * @since 1.0.0 */ function comment_author_rss() { echo get_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); echo $comment_text; } /** * Retrieve all of the post categories, formatted for use in feeds. * * All of the categories for the current post in the feed loop, will be * 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 $type Optional, default is 'rss'. Either 'rss', 'atom', or 'rdf'. * @return string All of the post categories for displaying in the feed. */ function get_the_category_rss($type = 'rss') { $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 .= "\n\t\t\n"; elseif ( 'atom' == $type ) $the_list .= sprintf( '', attribute_escape( apply_filters( 'get_bloginfo_rss', get_bloginfo( 'url' ) ) ), attribute_escape( $cat_name ) ); else $the_list .= "\n\t\t\n"; } 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. * * @param string $type Optional, default is 'rss'. Either 'rss', 'atom', or 'rdf'. */ function the_category_rss($type = 'rss') { echo get_the_category_rss($type); } /** * Display the HTML type based on the blog setting. * * The two possible values are either 'xhtml' or 'html'. * * @package WordPress * @subpackage Feed * @since 2.2.0 */ function html_type_rss() { $type = get_bloginfo('html_type'); if (strpos($type, 'xhtml') !== false) $type = 'xhtml'; else $type = 'html'; echo $type; } /** * Display the rss enclosure for the current post. * * Uses the global $post to check whether the post requires a password and if * the user has the password for the post. If not then it will return before * displaying. * * Also uses the function get_post_custom() to get the post's 'enclosure' * metadata field and parses the value to display the enclosure(s). The * 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() ) return; foreach ( (array) get_post_custom() as $key => $val) { if ($key == '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' $t = preg_split('/[ \t]/', trim($enclosure[2]) ); $type = $t[0]; echo apply_filters('rss_enclosure', '' . "\n"); } } } } /** * Display the atom enclosure for the current post. * * Uses the global $post to check whether the post requires a password and if * the user has the password for the post. If not then it will return before * displaying. * * Also uses the function get_post_custom() to get the post's '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() ) return; 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', '' . "\n"); } } } } /** * Determine the type of a string of data with the data formatted. * * Tell whether the type is text, html, or xhtml, per RFC 4287 section 3.1. * * In the case of WordPress, text is defined as containing no markup, * xhtml is defined as "well formed", and html as tag soup (i.e., the rest). * * Container div tags are added to xhtml values, per section 3.1.1.3. * * @link http://www.atomenabled.org/developers/syndication/atom-format-spec.php#rfc.section.3.1 * * @package WordPress * @subpackage Feed * @since 2.5 * * @param string $data Input string * @return array array(type, value) */ function prep_atom_text_construct($data) { if (strpos($data, '<') === false && strpos($data, '&') === false) { return array('text', $data); } $parser = xml_parser_create(); xml_parse($parser, '
' . $data . '
', true); $code = xml_get_error_code($parser); xml_parser_free($parser); if (!$code) { if (strpos($data, '<') === false) { return array('text', $data); } else { $data = "
$data
"; return array('xhtml', $data); } } if (strpos($data, ']]>') == false) { return array('html', ""); } else { return array('html', htmlspecialchars($data)); } } /** * Display the link for the currently displayed feed in a XSS safe way. * * Generate a correct link for the atom:self element. * * @package WordPress * @subpackage Feed * @since 2.5 */ function self_link() { $host = @parse_url(get_option('home')); $host = $host['host']; echo clean_url( 'http' . ( (isset($_SERVER['https']) && $_SERVER['https'] == 'on') ? 's' : '' ) . '://' . $host . stripslashes($_SERVER['REQUEST_URI']) ); } /** * Return the content type for specified feed type. * * @package WordPress * @subpackage Feed * @since 2.8.0 */ function feed_content_type( $type = '' ) { if ( empty($type) ) $type = get_default_feed(); $types = array( 'rss' => 'application/rss+xml', 'rss2' => 'application/rss+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 ); } /** * Build SimplePie object based on RSS or Atom feed from URL. * * @since 2.8 * * @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'); $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(43200); $feed->init(); $feed->handle_content_type(); if ( $feed->error() ) return new WP_Error('simplepie-error', $feed->error()); return $feed; }