Warning: Cannot modify header information - headers already sent by (output started at /var/www/jonas-eriksen.dk/pic/private/index.php:1) in /var/www/jonas-eriksen.dk/pic/private/index.php on line 215
var/www/jonas-eriksen.dk/wiki/feed.php 0000644 00000046170 15233463174 0013724 0 ustar 00
*
* @global array $conf
* @global Input $INPUT
*/
use dokuwiki\Cache\Cache;
use dokuwiki\ChangeLog\MediaChangeLog;
use dokuwiki\ChangeLog\PageChangeLog;
use dokuwiki\Extension\AuthPlugin;
use dokuwiki\Extension\Event;
if(!defined('DOKU_INC')) define('DOKU_INC', dirname(__FILE__).'/');
require_once(DOKU_INC.'inc/init.php');
//close session
session_write_close();
//feed disabled?
if(!actionOK('rss')) {
http_status(404);
echo 'RSS feed is disabled.';
exit;
}
// get params
$opt = rss_parseOptions();
// the feed is dynamic - we need a cache for each combo
// (but most people just use the default feed so it's still effective)
$key = join('', array_values($opt)).'$'.$_SERVER['REMOTE_USER'].'$'.$_SERVER['HTTP_HOST'].$_SERVER['SERVER_PORT'];
$cache = new Cache($key, '.feed');
// prepare cache depends
$depends['files'] = getConfigFiles('main');
$depends['age'] = $conf['rss_update'];
$depends['purge'] = $INPUT->bool('purge');
// check cacheage and deliver if nothing has changed since last
// time or the update interval has not passed, also handles conditional requests
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Pragma: public');
header('Content-Type: application/xml; charset=utf-8');
header('X-Robots-Tag: noindex');
if($cache->useCache($depends)) {
http_conditionalRequest($cache->getTime());
if($conf['allowdebug']) header("X-CacheUsed: $cache->cache");
print $cache->retrieveCache();
exit;
} else {
http_conditionalRequest(time());
}
// create new feed
$rss = new UniversalFeedCreator();
$rss->title = $conf['title'].(($opt['namespace']) ? ' '.$opt['namespace'] : '');
$rss->link = DOKU_URL;
$rss->syndicationURL = DOKU_URL.'feed.php';
$rss->cssStyleSheet = DOKU_URL.'lib/exe/css.php?s=feed';
$image = new FeedImage();
$image->title = $conf['title'];
$image->url = tpl_getMediaFile(array(':wiki:favicon.ico', ':favicon.ico', 'images/favicon.ico'), true);
$image->link = DOKU_URL;
$rss->image = $image;
$data = null;
$modes = array(
'list' => 'rssListNamespace',
'search' => 'rssSearch',
'recent' => 'rssRecentChanges'
);
if(isset($modes[$opt['feed_mode']])) {
$data = $modes[$opt['feed_mode']]($opt);
} else {
$eventData = array(
'opt' => &$opt,
'data' => &$data,
);
$event = new Event('FEED_MODE_UNKNOWN', $eventData);
if($event->advise_before(true)) {
echo sprintf('Unknown feed mode %s', hsc($opt['feed_mode']));
exit;
}
$event->advise_after();
}
rss_buildItems($rss, $data, $opt);
$feed = $rss->createFeed($opt['feed_type']);
// save cachefile
$cache->storeCache($feed);
// finally deliver
print $feed;
// ---------------------------------------------------------------- //
/**
* Get URL parameters and config options and return an initialized option array
*
* @author Andreas Gohr
*/
function rss_parseOptions() {
global $conf;
global $INPUT;
$opt = array();
foreach(array(
// Basic feed properties
// Plugins may probably want to add new values to these
// properties for implementing own feeds
// One of: list, search, recent
'feed_mode' => array('str', 'mode', 'recent'),
// One of: diff, page, rev, current
'link_to' => array('str', 'linkto', $conf['rss_linkto']),
// One of: abstract, diff, htmldiff, html
'item_content' => array('str', 'content', $conf['rss_content']),
// Special feed properties
// These are only used by certain feed_modes
// String, used for feed title, in list and rc mode
'namespace' => array('str', 'ns', null),
// Positive integer, only used in rc mode
'items' => array('int', 'num', $conf['recent']),
// Boolean, only used in rc mode
'show_minor' => array('bool', 'minor', false),
// Boolean, only used in rc mode
'only_new' => array('bool', 'onlynewpages', false),
// String, only used in list mode
'sort' => array('str', 'sort', 'natural'),
// String, only used in search mode
'search_query' => array('str', 'q', null),
// One of: pages, media, both
'content_type' => array('str', 'view', $conf['rss_media'])
) as $name => $val) {
$opt[$name] = $INPUT->{$val[0]}($val[1], $val[2], true);
}
$opt['items'] = max(0, (int) $opt['items']);
$opt['show_minor'] = (bool) $opt['show_minor'];
$opt['only_new'] = (bool) $opt['only_new'];
$opt['sort'] = valid_input_set('sort', array('default' => 'natural', 'date'), $opt);
$opt['guardmail'] = ($conf['mailguard'] != '' && $conf['mailguard'] != 'none');
$type = $INPUT->valid(
'type',
array( 'rss', 'rss2', 'atom', 'atom1', 'rss1'),
$conf['rss_type']
);
switch($type) {
case 'rss':
$opt['feed_type'] = 'RSS0.91';
$opt['mime_type'] = 'text/xml';
break;
case 'rss2':
$opt['feed_type'] = 'RSS2.0';
$opt['mime_type'] = 'text/xml';
break;
case 'atom':
$opt['feed_type'] = 'ATOM0.3';
$opt['mime_type'] = 'application/xml';
break;
case 'atom1':
$opt['feed_type'] = 'ATOM1.0';
$opt['mime_type'] = 'application/atom+xml';
break;
default:
$opt['feed_type'] = 'RSS1.0';
$opt['mime_type'] = 'application/xml';
}
$eventData = array(
'opt' => &$opt,
);
Event::createAndTrigger('FEED_OPTS_POSTPROCESS', $eventData);
return $opt;
}
/**
* Add recent changed pages to a feed object
*
* @author Andreas Gohr
* @param FeedCreator $rss the FeedCreator Object
* @param array $data the items to add
* @param array $opt the feed options
*/
function rss_buildItems(&$rss, &$data, $opt) {
global $conf;
global $lang;
/* @var AuthPlugin $auth */
global $auth;
$eventData = array(
'rss' => &$rss,
'data' => &$data,
'opt' => &$opt,
);
$event = new Event('FEED_DATA_PROCESS', $eventData);
if($event->advise_before(false)) {
foreach($data as $ditem) {
if(!is_array($ditem)) {
// not an array? then only a list of IDs was given
$ditem = array('id' => $ditem);
}
$item = new FeedItem();
$id = $ditem['id'];
if(!$ditem['media']) {
$meta = p_get_metadata($id);
} else {
$meta = array();
}
// add date
if($ditem['date']) {
$date = $ditem['date'];
} elseif ($ditem['media']) {
$date = @filemtime(mediaFN($id));
} elseif (file_exists(wikiFN($id))) {
$date = @filemtime(wikiFN($id));
} elseif($meta['date']['modified']) {
$date = $meta['date']['modified'];
} else {
$date = 0;
}
if($date) $item->date = date('r', $date);
// add title
if($conf['useheading'] && $meta['title']) {
$item->title = $meta['title'];
} else {
$item->title = $ditem['id'];
}
if($conf['rss_show_summary'] && !empty($ditem['sum'])) {
$item->title .= ' - '.strip_tags($ditem['sum']);
}
// add item link
switch($opt['link_to']) {
case 'page':
if($ditem['media']) {
$item->link = media_managerURL(
array(
'image' => $id,
'ns' => getNS($id),
'rev' => $date
), '&', true
);
} else {
$item->link = wl($id, 'rev='.$date, true, '&');
}
break;
case 'rev':
if($ditem['media']) {
$item->link = media_managerURL(
array(
'image' => $id,
'ns' => getNS($id),
'rev' => $date,
'tab_details' => 'history'
), '&', true
);
} else {
$item->link = wl($id, 'do=revisions&rev='.$date, true, '&');
}
break;
case 'current':
if($ditem['media']) {
$item->link = media_managerURL(
array(
'image' => $id,
'ns' => getNS($id)
), '&', true
);
} else {
$item->link = wl($id, '', true, '&');
}
break;
case 'diff':
default:
if($ditem['media']) {
$item->link = media_managerURL(
array(
'image' => $id,
'ns' => getNS($id),
'rev' => $date,
'tab_details' => 'history',
'mediado' => 'diff'
), '&', true
);
} else {
$item->link = wl($id, 'rev='.$date.'&do=diff', true, '&');
}
}
// add item content
switch($opt['item_content']) {
case 'diff':
case 'htmldiff':
if($ditem['media']) {
$medialog = new MediaChangeLog($id);
$revs = $medialog->getRevisions(0, 1);
$rev = $revs[0];
$src_r = '';
$src_l = '';
if($size = media_image_preview_size($id, '', new JpegMeta(mediaFN($id)), 300)) {
$more = 'w='.$size[0].'&h='.$size[1].'&t='.@filemtime(mediaFN($id));
$src_r = ml($id, $more, true, '&', true);
}
if($rev && $size = media_image_preview_size($id, $rev, new JpegMeta(mediaFN($id, $rev)), 300)) {
$more = 'rev='.$rev.'&w='.$size[0].'&h='.$size[1];
$src_l = ml($id, $more, true, '&', true);
}
$content = '';
if($src_r) {
$content = '
';
$content .= '
'.$rev.'
';
$content .= '
'.$lang['current'].'
';
$content .= '
';
$content .= '
';
$content .= '
';
}
} else {
require_once(DOKU_INC.'inc/DifferenceEngine.php');
$pagelog = new PageChangeLog($id);
$revs = $pagelog->getRevisions(0, 1);
$rev = $revs[0];
if($rev) {
$df = new Diff(explode("\n", rawWiki($id, $rev)),
explode("\n", rawWiki($id, '')));
} else {
$df = new Diff(array(''),
explode("\n", rawWiki($id, '')));
}
if($opt['item_content'] == 'htmldiff') {
// note: no need to escape diff output, TableDiffFormatter provides 'safe' html
$tdf = new TableDiffFormatter();
$content = '
';
$content .= '
'.$rev.'
';
$content .= '
'.$lang['current'].'
';
$content .= $tdf->format($df);
$content .= '
';
} else {
// note: diff output must be escaped, UnifiedDiffFormatter provides plain text
$udf = new UnifiedDiffFormatter();
$content = "
\n".hsc($udf->format($df))."\n
";
}
}
break;
case 'html':
if($ditem['media']) {
if($size = media_image_preview_size($id, '', new JpegMeta(mediaFN($id)))) {
$more = 'w='.$size[0].'&h='.$size[1].'&t='.@filemtime(mediaFN($id));
$src = ml($id, $more, true, '&', true);
$content = '';
} else {
$content = '';
}
} else {
if (@filemtime(wikiFN($id)) === $date) {
$content = p_wiki_xhtml($id, '', false);
} else {
$content = p_wiki_xhtml($id, $date, false);
}
// no TOC in feeds
$content = preg_replace('/().*()/s', '', $content);
// add alignment for images
$content = preg_replace('/(';
} else {
$content = '';
}
} else {
$content = $meta['description']['abstract'];
}
}
$item->description = $content; //FIXME a plugin hook here could be senseful
// add user
# FIXME should the user be pulled from metadata as well?
$user = @$ditem['user']; // the @ spares time repeating lookup
if(blank($user)) {
$item->author = 'Anonymous';
$item->authorEmail = 'anonymous@undisclosed.example.com';
} else {
$item->author = $user;
$item->authorEmail = $user . '@undisclosed.example.com';
// get real user name if configured
if($conf['useacl'] && $auth) {
$userInfo = $auth->getUserData($user);
if($userInfo) {
switch($conf['showuseras']) {
case 'username':
case 'username_link':
$item->author = $userInfo['name'];
break;
default:
$item->author = $user;
break;
}
} else {
$item->author = $user;
}
}
}
// add category
if(isset($meta['subject'])) {
$item->category = $meta['subject'];
} else {
$cat = getNS($id);
if($cat) $item->category = $cat;
}
// finally add the item to the feed object, after handing it to registered plugins
$evdata = array(
'item' => &$item,
'opt' => &$opt,
'ditem' => &$ditem,
'rss' => &$rss
);
$evt = new Event('FEED_ITEM_ADD', $evdata);
if($evt->advise_before()) {
$rss->addItem($item);
}
$evt->advise_after(); // for completeness
}
}
$event->advise_after();
}
/**
* Add recent changed pages to the feed object
*
* @author Andreas Gohr
*/
function rssRecentChanges($opt) {
global $conf;
$flags = 0;
if(!$conf['rss_show_deleted']) $flags += RECENTS_SKIP_DELETED;
if(!$opt['show_minor']) $flags += RECENTS_SKIP_MINORS;
if($opt['only_new']) $flags += RECENTS_ONLY_CREATION;
if($opt['content_type'] == 'media' && $conf['mediarevisions']) $flags += RECENTS_MEDIA_CHANGES;
if($opt['content_type'] == 'both' && $conf['mediarevisions']) $flags += RECENTS_MEDIA_PAGES_MIXED;
$recents = getRecents(0, $opt['items'], $opt['namespace'], $flags);
return $recents;
}
/**
* Add all pages of a namespace to the feed object
*
* @author Andreas Gohr
*/
function rssListNamespace($opt) {
require_once(DOKU_INC.'inc/search.php');
global $conf;
$ns = ':'.cleanID($opt['namespace']);
$ns = utf8_encodeFN(str_replace(':', '/', $ns));
$data = array();
$search_opts = array(
'depth' => 1,
'pagesonly' => true,
'listfiles' => true
);
search($data, $conf['datadir'], 'search_universal', $search_opts, $ns, $lvl = 1, $opt['sort']);
return $data;
}
/**
* Add the result of a full text search to the feed object
*
* @author Andreas Gohr
*/
function rssSearch($opt) {
if(!$opt['search_query']) return array();
require_once(DOKU_INC.'inc/fulltext.php');
$data = ft_pageSearch($opt['search_query'], $poswords);
$data = array_keys($data);
return $data;
}
//Setup VIM: ex: et ts=4 :
var/www/jonas-eriksen.dk/linhpham.dk/wp-includes/feed.php 0000644 00000055563 15233543306 0017412 0 ustar 00 document_title_separator' ) );
}
/**
* Filters the blog title for use as the feed title.
*
* @since 2.2.0
* @since 4.4.0 The `$sep` parameter was deprecated and renamed to `$deprecated`.
*
* @param string $title The current blog title.
* @param string $deprecated Unused.
*/
return apply_filters( 'get_wp_title_rss', wp_get_document_title(), $deprecated );
}
/**
* Displays the blog title for display of the feed title.
*
* @since 2.2.0
* @since 4.4.0 The optional `$sep` parameter was deprecated and renamed to `$deprecated`.
*
* @param string $deprecated Unused.
*/
function wp_title_rss( $deprecated = '–' ) {
if ( '–' !== $deprecated ) {
/* translators: %s: 'document_title_separator' filter name. */
_deprecated_argument( __FUNCTION__, '4.4.0', sprintf( __( 'Use the %s filter instead.' ), 'document_title_separator' ) );
}
/**
* Filters the blog title for display of the feed title.
*
* @since 2.2.0
* @since 4.4.0 The `$sep` parameter was deprecated and renamed to `$deprecated`.
*
* @see get_wp_title_rss()
*
* @param string $wp_title_rss The current blog title.
* @param string $deprecated Unused.
*/
echo apply_filters( 'wp_title_rss', get_wp_title_rss(), $deprecated );
}
/**
* Retrieves the current post title for the feed.
*
* @since 2.0.0
* @since 6.6.0 Added the `$post` parameter.
*
* @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post.
* @return string Current post title.
*/
function get_the_title_rss( $post = 0 ) {
$title = get_the_title( $post );
/**
* Filters the post title for use in a feed.
*
* @since 1.2.0
*
* @param string $title The current post title.
*/
return apply_filters( 'the_title_rss', $title );
}
/**
* Displays the post title in the feed.
*
* @since 0.71
*/
function the_title_rss() {
echo get_the_title_rss();
}
/**
* Retrieves the post content for feeds.
*
* @since 2.9.0
*
* @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();
}
/** This filter is documented in wp-includes/post-template.php */
$content = apply_filters( 'the_content', get_the_content() );
$content = str_replace( ']]>', ']]>', $content );
/**
* Filters 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 );
}
/**
* Displays the post content for feeds.
*
* @since 2.9.0
*
* @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 );
}
/**
* Displays the post excerpt for the feed.
*
* @since 0.71
*/
function the_excerpt_rss() {
$output = get_the_excerpt();
/**
* Filters the post excerpt for a feed.
*
* @since 1.2.0
*
* @param string $output The current post excerpt.
*/
echo apply_filters( 'the_excerpt_rss', $output );
}
/**
* Displays the permalink to the post for use in feeds.
*
* @since 2.3.0
*/
function the_permalink_rss() {
/**
* Filters 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() ) );
}
/**
* Outputs the link to the comments for the current post in an XML safe way.
*
* @since 3.0.0
*/
function comments_link_feed() {
/**
* Filters 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() ) );
}
/**
* Displays the feed GUID for the current comment.
*
* @since 2.5.0
*
* @param int|WP_Comment $comment_id Optional comment object or ID. Defaults to global comment object.
*/
function comment_guid( $comment_id = null ) {
echo esc_url( get_comment_guid( $comment_id ) );
}
/**
* Retrieves the feed GUID for the current comment.
*
* @since 2.5.0
*
* @param int|WP_Comment $comment_id Optional comment object or ID. Defaults to global comment object.
* @return string|false GUID for comment on success, false on failure.
*/
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-' . $comment->comment_ID;
}
/**
* Displays the link to the comments.
*
* @since 1.5.0
* @since 4.4.0 Introduced the `$comment` argument.
*
* @param int|WP_Comment $comment Optional. Comment object or ID. Defaults to global comment object.
*/
function comment_link( $comment = null ) {
/**
* Filters 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( $comment ) ) );
}
/**
* Retrieves the current comment author for use in the feeds.
*
* @since 2.0.0
*
* @return string Comment Author.
*/
function get_comment_author_rss() {
/**
* Filters 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() );
}
/**
* Displays the current comment author in the feed.
*
* @since 1.0.0
*/
function comment_author_rss() {
echo get_comment_author_rss();
}
/**
* Displays the current comment content for use in the feeds.
*
* @since 1.0.0
*/
function comment_text_rss() {
$comment_text = get_comment_text();
/**
* Filters 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;
}
/**
* Retrieves 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.
*
* @since 2.1.0
*
* @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 = 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";
}
}
/**
* Filters 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 );
}
/**
* Displays the post categories in the feed.
*
* @since 0.71
*
* @see get_the_category_rss() For better explanation.
*
* @param string $type Optional, default is the type returned by get_default_feed().
*/
function the_category_rss( $type = null ) {
echo get_the_category_rss( $type );
}
/**
* Displays the HTML type based on the blog setting.
*
* The two possible values are either 'xhtml' or 'html'.
*
* @since 2.2.0
*/
function html_type_rss() {
$type = get_bloginfo( 'html_type' );
if ( str_contains( $type, 'xhtml' ) ) {
$type = 'xhtml';
} else {
$type = 'html';
}
echo $type;
}
/**
* Displays 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.
*
* @since 1.5.0
*/
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];
/**
* Filters 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', '' . "\n" );
}
}
}
}
/**
* Displays 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.
*
* @since 2.2.0
*/
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 )
);
/**
* Filters 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', $html_link_tag );
}
}
}
}
/**
* Determines 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
*
* @since 2.5.0
*
* @param string $data Input string.
* @return array array(type, value)
*/
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, '
";
return array( 'xhtml', $data );
}
}
if ( ! str_contains( $data, ']]>' ) ) {
return array( 'html', "" );
} else {
return array( 'html', htmlspecialchars( $data ) );
}
}
/**
* Displays Site Icon in atom feeds.
*
* @since 4.3.0
*
* @see get_site_icon_url()
*/
function atom_site_icon() {
$url = get_site_icon_url( 32 );
if ( $url ) {
echo '' . convert_chars( $url ) . "\n";
}
}
/**
* Displays Site Icon in RSS2.
*
* @since 4.3.0
*/
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' ) . '
3232 ' . "\n";
}
}
/**
* Returns the link for the currently displayed feed.
*
* @since 5.3.0
*
* @return string Correct link for the atom:self element.
*/
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'] ) );
}
/**
* Displays the link for the currently displayed feed in a XSS safe way.
*
* Generate a correct link for the atom:self element.
*
* @since 2.5.0
*/
function self_link() {
/**
* Filters 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', get_self_link() ) );
}
/**
* Gets the UTC time of the most recently modified post from WP_Query.
*
* If viewing a comment feed, the time of the most recently modified
* comment will be returned.
*
* @since 5.2.0
*
* @global WP_Query $wp_query WordPress Query object.
*
* @param string $format Date format string to return the time in.
* @return string|false The time in requested format, or false on failure.
*/
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 );
}
/**
* Filters the date the last post or comment in the query was modified.
*
* @since 5.2.0
*
* @param string|false $max_modified_time Date the last post or comment was modified in the query, in UTC.
* False on failure.
* @param string $format The date format requested in get_feed_build_date().
*/
return apply_filters( 'get_feed_build_date', $max_modified_time, $format );
}
/**
* Returns the content type for specified feed type.
*
* @since 2.8.0
*
* @param string $type Type of feed. Possible values include 'rss', rss2', 'atom', and 'rdf'.
* @return string Content type for specified feed type.
*/
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';
/**
* Filters 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 'rss', rss2', 'atom', and 'rdf'.
*/
return apply_filters( 'feed_content_type', $content_type, $type );
}
/**
* Builds SimplePie object based on RSS or Atom feed from URL.
*
* @since 2.8.0
*
* @param string|string[] $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 SimplePie\SimplePie|WP_Error SimplePie object on success or WP_Error object on failure.
*/
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 );
/** This filter is documented in wp-includes/class-wp-feed-cache-transient.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 SimplePie\SimplePie $feed SimplePie feed object (passed by reference).
* @param string|string[] $url URL of feed or array of URLs of feeds to retrieve.
*/
do_action_ref_array( 'wp_feed_options', array( &$feed, $url ) );
$feed->init();
$feed->set_output_encoding( get_bloginfo( 'charset' ) );
if ( $feed->error() ) {
return new WP_Error( 'simplepie-error', $feed->error() );
}
return $feed;
}