X-Git-Url: https://scripts.mit.edu/gitweb/autoinstalls/wordpress.git/blobdiff_plain/11be8dc178e77d0b46189bbd8e33a216a9b90942..11be15bd505d66a91e2c80062190b13e315a04a9:/wp-includes/feed.php diff --git a/wp-includes/feed.php b/wp-includes/feed.php index ad730f38..e6b9ae0e 100644 --- a/wp-includes/feed.php +++ b/wp-includes/feed.php @@ -63,7 +63,8 @@ function bloginfo_rss($show = '') { * @return string Default feed, or for example 'rss2', 'atom', etc. */ function get_default_feed() { - return apply_filters('default_feed', 'rss2'); + $default_feed = apply_filters('default_feed', 'rss2'); + return 'rss' == $default_feed ? 'rss2' : $default_feed; } /** @@ -130,66 +131,39 @@ function 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. + * Retrieve the post content for feeds. * * @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. + * @since 2.9.0 + * @uses apply_filters() Calls 'the_content_feed' on the content before processing. + * @see get_the_content() + * + * @param string $feed_type The type of feed. rss2 | atom | rss | rdf + * @return string The filtered content. */ -function the_content_rss($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); - $use_dotdotdot = 0; - } +function get_the_content_feed($feed_type = null) { + if ( !$feed_type ) + $feed_type = get_default_feed(); - /** @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 = apply_filters('the_content', get_the_content()); $content = str_replace(']]>', ']]>', $content); - echo $content; + 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 $feed_type The type of feed. rss2 | atom | rss | rdf + */ +function the_content_feed($feed_type = null) { + echo get_the_content_feed($feed_type); } /** @@ -214,7 +188,17 @@ function the_excerpt_rss() { * @uses apply_filters() Call 'the_permalink_rss' on the post permalink */ function the_permalink_rss() { - echo apply_filters('the_permalink_rss', get_permalink()); + echo esc_url( apply_filters('the_permalink_rss', get_permalink() )); +} + +/** + * Outputs the link to the comments for the current post in an xml safe way + * + * @since 3.0.0 + * @return none + */ +function comments_link_feed() { + echo esc_url( apply_filters( 'comments_link_feed', get_comments_link() ) ); } /** @@ -222,12 +206,12 @@ function the_permalink_rss() { * * @package WordPress * @subpackage Feed - * @since unknown + * @since 2.5.0 * * @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($comment_id); + echo esc_url( get_comment_guid($comment_id) ); } /** @@ -235,7 +219,7 @@ function comment_guid($comment_id = null) { * * @package WordPress * @subpackage Feed - * @since unknown + * @since 2.5.0 * * @param int|object $comment_id Optional comment object or id. Defaults to global comment object. * @return bool|string false on failure or guid for comment on success. @@ -255,7 +239,7 @@ function get_comment_guid($comment_id = null) { * @since 1.5.0 */ function comment_link() { - echo clean_url( get_comment_link() ); + echo esc_url( apply_filters( 'comment_link', get_comment_link() ) ); } /** @@ -311,10 +295,12 @@ function comment_text_rss() { * @since 2.1.0 * @uses apply_filters() * - * @param string $type Optional, default is 'rss'. Either 'rss', 'atom', or 'rdf'. + * @param string $type Optional, default is the type returned by get_default_feed(). * @return string All of the post categories for displaying in the feed. */ -function get_the_category_rss($type = 'rss') { +function get_the_category_rss($type = null) { + if ( empty($type) ) + $type = get_default_feed(); $categories = get_the_category(); $tags = get_the_tags(); $the_list = ''; @@ -336,11 +322,11 @@ function get_the_category_rss($type = 'rss') { foreach ( $cat_names as $cat_name ) { if ( 'rdf' == $type ) - $the_list .= "\n\t\t\n"; + $the_list .= "\t\t\n"; elseif ( 'atom' == $type ) - $the_list .= sprintf( '', attribute_escape( apply_filters( 'get_bloginfo_rss', get_bloginfo( 'url' ) ) ), attribute_escape( $cat_name ) ); + $the_list .= sprintf( '', esc_attr( apply_filters( 'get_bloginfo_rss', get_bloginfo( 'url' ) ) ), esc_attr( $cat_name ) ); else - $the_list .= "\n\t\t\n"; + $the_list .= "\t\t\n"; } return apply_filters('the_category_rss', $the_list, $type); @@ -354,9 +340,9 @@ function get_the_category_rss($type = 'rss') { * @since 0.71 * @see get_the_category_rss() For better explanation. * - * @param string $type Optional, default is 'rss'. Either 'rss', 'atom', or 'rdf'. + * @param string $type Optional, default is the type returned by get_default_feed(). */ -function the_category_rss($type = 'rss') { +function the_category_rss($type = null) { echo get_the_category_rss($type); } @@ -403,10 +389,10 @@ function rss_enclosure() { foreach ( (array) get_post_custom() as $key => $val) { if ($key == 'enclosure') { foreach ( (array) $val as $enc ) { - $enclosure = split("\n", $enc); + $enclosure = explode("\n", $enc); - //only get the the first element eg, audio/mpeg from 'audio/mpeg mpga mp2 mp3' - $t = split('[ \t]', trim($enclosure[2]) ); + // 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"); @@ -439,7 +425,7 @@ function atom_enclosure() { foreach ( (array) get_post_custom() as $key => $val ) { if ($key == 'enclosure') { foreach ( (array) $val as $enc ) { - $enclosure = split("\n", $enc); + $enclosure = explode("\n", $enc); echo apply_filters('atom_enclosure', '' . "\n"); } } @@ -501,14 +487,66 @@ function prep_atom_text_construct($data) { * @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']) - ); + $host = @parse_url(home_url()); + 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( $type = '' ) { + if ( empty($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 ); +} + +/** + * Build SimplePie object based on RSS or Atom feed from URL. + * + * @since 2.8 + * + * @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} + * + * @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_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 ); + $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->handle_content_type(); + + if ( $feed->error() ) + return new WP_Error( 'simplepie-error', $feed->error() ); + + return $feed; +}