<?php
-
+/**
+ * WordPress Feed API
+ *
+ * Many of the functions used in here belong in The Loop, or The Loop for the
+ * Feeds.
+ *
+ * @package WordPress
+ * @subpackage Feed
+ */
+
+/**
+ * RSS container for the bloginfo function.
+ *
+ * You can retrieve anything that you can using the get_bloginfo() function.
+ * 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 $show See get_bloginfo() for possible values.
+ * @return string
+ */
function get_bloginfo_rss($show = '') {
$info = strip_tags(get_bloginfo($show));
- return apply_filters('get_bloginfo_rss', convert_chars($info));
+ return apply_filters('get_bloginfo_rss', convert_chars($info), $show);
}
-
+/**
+ * Display RSS container for the bloginfo function.
+ *
+ * You can retrieve anything that you can using the get_bloginfo() function.
+ * 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($show));
+ echo apply_filters('bloginfo_rss', get_bloginfo_rss($show), $show);
}
+/**
+ * Retrieve the default feed.
+ *
+ * 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.
+ *
+ * @return string Default feed, or for example 'rss2', 'atom', etc.
+ */
+function get_default_feed() {
+ return apply_filters('default_feed', 'rss2');
+}
+
+/**
+ * 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 $sep Optional.How to separate the title. See wp_title() for more info.
+ * @return string Error message on failure or blog title on success.
+ */
function get_wp_title_rss($sep = '»') {
$title = wp_title($sep, false);
if ( is_wp_error( $title ) )
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);
$k = count($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) ? '...' : '';
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
+ */
+function comment_guid() {
+ echo get_comment_guid();
}
+/**
+ * Retrieve the feed GUID for the current comment.
+ *
+ * @package WordPress
+ * @subpackage Feed
+ * @since unknown
+ *
+ * @return bool|string false on failure or guid for comment on success.
+ */
+function get_comment_guid() {
+ global $comment;
+
+ if ( !is_object($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 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 $comment_text;
}
-
-function comments_rss_link($link_text = 'Comments RSS', $commentsrssfilename = 'nolongerused') {
- $url = get_post_comments_feed_link();
- echo "<a href='$url'>$link_text</a>";
-}
-
-
-function comments_rss($commentsrssfilename = 'nolongerused') {
- return get_post_comments_feed_link();
-}
-
-
-function get_author_rss_link($echo = false, $author_id, $author_nicename) {
- $auth_ID = (int) $author_id;
- $permalink_structure = get_option('permalink_structure');
-
- if ( '' == $permalink_structure ) {
- $link = get_option('home') . '?feed=rss2&author=' . $author_id;
- } else {
- $link = get_author_posts_url($author_id, $author_nicename);
- $link = trailingslashit($link) . user_trailingslashit('feed', 'feed');
- }
-
- $link = apply_filters('author_feed_link', $link);
-
- if ( $echo )
- echo $link;
- return $link;
-}
-
-
-function get_category_rss_link($echo = false, $cat_ID, $category_nicename) {
- $permalink_structure = get_option('permalink_structure');
-
- if ( '' == $permalink_structure ) {
- $link = get_option('home') . '?feed=rss2&cat=' . $cat_ID;
- } else {
- $link = get_category_link($cat_ID);
- $link = trailingslashit($link) . user_trailingslashit('feed', 'feed');
- }
-
- $link = apply_filters('category_feed_link', $link);
-
- if ( $echo )
- echo $link;
- return $link;
-}
-
-
+/**
+ * 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();
- $home = get_bloginfo_rss('home');
$the_list = '';
$cat_names = array();
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($type);
}
-function get_tag_feed_link($tag_id, $feed = 'rss2') {
- $tag_id = (int) $tag_id;
-
- $tag = get_tag($tag_id);
-
- if ( empty($tag) || is_wp_error($tag) )
- return false;
-
- $permalink_structure = get_option('permalink_structure');
-
- if ( '' == $permalink_structure ) {
- $link = get_option('home') . "?feed=$feed&tag=" . $tag->slug;
- } else {
- $link = get_tag_link($tag->term_id);
- if ( 'rss2' == $feed )
- $feed_link = 'feed';
- else
- $feed_link = "feed/$feed";
- $link = $link . user_trailingslashit($feed_link, 'feed');
- }
-
- $link = apply_filters('tag_feed_link', $link, $feed);
-
- return $link;
-}
-
+/**
+ * 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)
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() {
- global $id, $post;
- if ( !empty($post->post_password) && ($_COOKIE['wp-postpass_'.COOKIEHASH] != $post->post_password) )
+ global $post;
+ if ( !empty($post->post_password) && (!isset($_COOKIE['wp-postpass_'.COOKIEHASH]) || $_COOKIE['wp-postpass_'.COOKIEHASH] != $post->post_password) )
return;
foreach (get_post_custom() as $key => $val) {
}
}
+/**
+ * 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() {
- global $id, $post;
+ global $post;
if ( !empty($post->post_password) && ($_COOKIE['wp-postpass_'.COOKIEHASH] != $post->post_password) )
return;
}
}
-?>
+/**
+ * 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, '<div>' . $data . '</div>', true);
+ $code = xml_get_error_code($parser);
+ xml_parser_free($parser);
+
+ if (!$code) {
+ if (strpos($data, '<') === false) {
+ return array('text', $data);
+ } else {
+ $data = "<div xmlns='http://www.w3.org/1999/xhtml'>$data</div>";
+ return array('xhtml', $data);
+ }
+ }
+
+ if (strpos($data, ']]>') == false) {
+ return array('html', "<![CDATA[$data]]>");
+ } else {
+ return array('html', htmlspecialchars($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() {
+ echo 'http'
+ . ( $_SERVER['https'] == 'on' ? 's' : '' ) . '://'
+ . $_SERVER['HTTP_HOST']
+ . wp_specialchars(stripslashes($_SERVER['REQUEST_URI']), 1);
+}
+
+?>
\ No newline at end of file
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