1841 lines
56 KiB
PHP
1841 lines
56 KiB
PHP
<?php
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use Automattic\Jetpack\Assets;
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use Automattic\Jetpack\Sync\Settings;
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class Jetpack_RelatedPosts {
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const VERSION = '20190204';
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const SHORTCODE = 'jetpack-related-posts';
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private static $instance = null;
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private static $instance_raw = null;
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/**
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* Creates and returns a static instance of Jetpack_RelatedPosts.
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*
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* @return Jetpack_RelatedPosts
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*/
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public static function init() {
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if ( ! self::$instance ) {
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if ( class_exists('WPCOM_RelatedPosts') && method_exists( 'WPCOM_RelatedPosts', 'init' ) ) {
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self::$instance = WPCOM_RelatedPosts::init();
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} else {
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self::$instance = new Jetpack_RelatedPosts();
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}
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}
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return self::$instance;
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}
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/**
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* Creates and returns a static instance of Jetpack_RelatedPosts_Raw.
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*
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* @return Jetpack_RelatedPosts
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*/
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public static function init_raw() {
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if ( ! self::$instance_raw ) {
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if ( class_exists('WPCOM_RelatedPosts') && method_exists( 'WPCOM_RelatedPosts', 'init_raw' ) ) {
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self::$instance_raw = WPCOM_RelatedPosts::init_raw();
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} else {
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self::$instance_raw = new Jetpack_RelatedPosts_Raw();
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}
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}
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return self::$instance_raw;
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}
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protected $_options;
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protected $_allow_feature_toggle;
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protected $_blog_charset;
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protected $_convert_charset;
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protected $_previous_post_id;
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protected $_found_shortcode = false;
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/**
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* Constructor for Jetpack_RelatedPosts.
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*
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* @uses get_option, add_action, apply_filters
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*
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* @return null
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*/
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public function __construct() {
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$this->_blog_charset = get_option( 'blog_charset' );
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$this->_convert_charset = ( function_exists( 'iconv' ) && ! preg_match( '/^utf\-?8$/i', $this->_blog_charset ) );
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add_action( 'admin_init', array( $this, 'action_admin_init' ) );
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add_action( 'wp', array( $this, 'action_frontend_init' ) );
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if ( ! class_exists( 'Jetpack_Media_Summary' ) ) {
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jetpack_require_lib( 'class.media-summary' );
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}
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// Add Related Posts to the REST API Post response.
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add_action( 'rest_api_init', array( $this, 'rest_register_related_posts' ) );
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jetpack_register_block(
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'jetpack/related-posts',
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array(
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'render_callback' => array( $this, 'render_block' ),
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)
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);
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}
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protected function get_blog_id() {
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return Jetpack_Options::get_option( 'id' );
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}
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/**
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* =================
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* ACTIONS & FILTERS
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* =================
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*/
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/**
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* Add a checkbox field to Settings > Reading for enabling related posts.
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*
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* @action admin_init
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* @uses add_settings_field, __, register_setting, add_action
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* @return null
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*/
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public function action_admin_init() {
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// Add the setting field [jetpack_relatedposts] and place it in Settings > Reading
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add_settings_field( 'jetpack_relatedposts', '<span id="jetpack_relatedposts">' . __( 'Related posts', 'jetpack' ) . '</span>', array( $this, 'print_setting_html' ), 'reading' );
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register_setting( 'reading', 'jetpack_relatedposts', array( $this, 'parse_options' ) );
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add_action('admin_head', array( $this, 'print_setting_head' ) );
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if( 'options-reading.php' == $GLOBALS['pagenow'] ) {
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// Enqueue style for live preview on the reading settings page
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$this->_enqueue_assets( false, true );
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}
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}
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/**
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* Load related posts assets if it's a elegiable front end page or execute search and return JSON if it's an endpoint request.
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*
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* @global $_GET
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* @action wp
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* @uses add_shortcode, get_the_ID
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* @returns null
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*/
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public function action_frontend_init() {
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// Add a shortcode handler that outputs nothing, this gets overridden later if we can display related content
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add_shortcode( self::SHORTCODE, array( $this, 'get_client_rendered_html_unsupported' ) );
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if ( ! $this->_enabled_for_request() )
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return;
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if ( isset( $_GET['relatedposts'] ) ) {
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$excludes = $this->parse_numeric_get_arg( 'relatedposts_exclude' );
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$this->_action_frontend_init_ajax( $excludes );
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} else {
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if ( isset( $_GET['relatedposts_hit'], $_GET['relatedposts_origin'], $_GET['relatedposts_position'] ) ) {
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$this->_log_click( $_GET['relatedposts_origin'], get_the_ID(), $_GET['relatedposts_position'] );
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$this->_previous_post_id = (int) $_GET['relatedposts_origin'];
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}
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$this->_action_frontend_init_page();
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}
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}
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/**
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* Render insertion point.
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*
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* @since 4.2.0
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*
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* @return string
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*/
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public function get_headline() {
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$options = $this->get_options();
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if ( $options['show_headline'] ) {
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$headline = sprintf(
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/** This filter is already documented in modules/sharedaddy/sharing-service.php */
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apply_filters( 'jetpack_sharing_headline_html', '<h3 class="jp-relatedposts-headline"><em>%s</em></h3>', esc_html( $options['headline'] ), 'related-posts' ),
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esc_html( $options['headline'] )
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);
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} else {
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$headline = '';
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}
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return $headline;
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}
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/**
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* Adds a target to the post content to load related posts into if a shortcode for it did not already exist.
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* Will skip adding the target if the post content contains a Related Posts block.
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*
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* @filter the_content
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*
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* @param string $content Post content.
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*
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* @returns string
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*/
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public function filter_add_target_to_dom( $content ) {
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if ( has_block( 'jetpack/related-posts', $content ) ) {
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return $content;
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}
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if ( ! $this->_found_shortcode ) {
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if ( class_exists( 'Jetpack_AMP_Support' ) && Jetpack_AMP_Support::is_amp_request() ) {
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$content .= "\n" . $this->get_server_rendered_html();
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} else {
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$content .= "\n" . $this->get_client_rendered_html();
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}
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}
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return $content;
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}
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/**
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* Render static markup based on the Gutenberg block code
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*
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* @return string Rendered related posts HTML.
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*/
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public function get_server_rendered_html() {
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$rp_settings = Jetpack_Options::get_option( 'relatedposts', array() );
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$block_rp_settings = array(
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'displayThumbnails' => $rp_settings['show_thumbnails'],
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'showHeadline' => $rp_settings['show_headline'],
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'displayDate' => isset( $rp_settings['show_date'] ) ? (bool) $rp_settings['show_date'] : true,
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'displayContext' => isset( $rp_settings['show_context'] ) && $rp_settings['show_context'],
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'postLayout' => isset( $rp_settings['layout'] ) ? $rp_settings['layout'] : 'grid',
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'postsToShow' => isset( $rp_settings['size'] ) ? $rp_settings['size'] : 3,
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/** This filter is already documented in modules/related-posts/jetpack-related-posts.php */
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'headline' => apply_filters( 'jetpack_relatedposts_filter_headline', $this->get_headline() ),
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);
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return $this->render_block( $block_rp_settings );
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}
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/**
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* Looks for our shortcode on the unfiltered content, this has to execute early.
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*
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* @filter the_content
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* @param string $content
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* @uses has_shortcode
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* @returns string
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*/
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public function test_for_shortcode( $content ) {
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$this->_found_shortcode = has_shortcode( $content, self::SHORTCODE );
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return $content;
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}
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/**
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* Returns the HTML for the related posts section.
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*
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* @uses esc_html__, apply_filters
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* @returns string
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*/
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public function get_client_rendered_html() {
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if ( Settings::is_syncing() ) {
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return '';
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}
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/**
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* Filter the Related Posts headline.
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*
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* @module related-posts
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*
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* @since 3.0.0
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*
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* @param string $headline Related Posts heading.
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*/
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$headline = apply_filters( 'jetpack_relatedposts_filter_headline', $this->get_headline() );
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if ( $this->_previous_post_id ) {
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$exclude = "data-exclude='{$this->_previous_post_id}'";
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} else {
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$exclude = "";
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}
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return <<<EOT
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<div id='jp-relatedposts' class='jp-relatedposts' $exclude>
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$headline
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</div>
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EOT;
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}
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/**
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* Returns the HTML for the related posts section if it's running in the loop or other instances where we don't support related posts.
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*
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* @returns string
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*/
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public function get_client_rendered_html_unsupported() {
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if ( Settings::is_syncing() ) {
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return '';
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}
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return "\n\n<!-- Jetpack Related Posts is not supported in this context. -->\n\n";
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}
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/**
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* ===============
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* GUTENBERG BLOCK
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* ===============
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*/
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/**
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* Echoes out items for the Gutenberg block
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*
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* @param array $related_post The post oject.
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* @param array $block_attributes The block attributes.
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*/
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public function render_block_item( $related_post, $block_attributes ) {
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$instance_id = 'related-posts-item-' . uniqid();
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$label_id = $instance_id . '-label';
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$item_markup = sprintf(
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'<ul id="%1$s" aria-labelledby="%2$s" class="jp-related-posts-i2__post" role="menuitem">',
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esc_attr( $instance_id ),
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esc_attr( $label_id )
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);
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$item_markup .= sprintf(
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'<li class="jp-related-posts-i2__post-link"><a id="%1$s" href="%2$s" rel="%4$s">%3$s</a></li>',
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esc_attr( $label_id ),
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esc_url( $related_post['url'] ),
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esc_attr( $related_post['title'] ),
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esc_attr( $related_post['rel'] )
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);
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if ( ! empty( $block_attributes['show_thumbnails'] ) && ! empty( $related_post['img']['src'] ) ) {
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$img_link = sprintf(
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'<li class="jp-related-posts-i2__post-img-link"><a href="%1$s" rel="%2$s"><img src="%3$s" width="%4$s" alt="%5$s" /></a></li>',
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esc_url( $related_post['url'] ),
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esc_attr( $related_post['rel'] ),
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esc_url( $related_post['img']['src'] ),
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esc_attr( $related_post['img']['width'] ),
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esc_attr( $related_post['img']['alt_text'] )
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);
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$item_markup .= $img_link;
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}
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if ( $block_attributes['show_date'] ) {
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$date_tag = sprintf(
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'<li class="jp-related-posts-i2__post-date">%1$s</li>',
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esc_html( $related_post['date'] )
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);
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$item_markup .= $date_tag;
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}
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if ( ( $block_attributes['show_context'] ) && ! empty( $related_post['context'] ) ) {
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$context_tag = sprintf(
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'<li class="jp-related-posts-i2__post-context">%1$s</li>',
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esc_html( $related_post['context'] )
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);
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$item_markup .= $context_tag;
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}
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$item_markup .= '</ul>';
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return $item_markup;
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}
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/**
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* Render a related posts row.
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*
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* @param array $posts The posts to render into the row.
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* @param array $block_attributes Block attributes.
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*/
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public function render_block_row( $posts, $block_attributes ) {
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$rows_markup = '';
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foreach ( $posts as $post ) {
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$rows_markup .= $this->render_block_item( $post, $block_attributes );
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}
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return sprintf(
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'<div class="jp-related-posts-i2__row" data-post-count="%1$s">%2$s</div>',
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count( $posts ),
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$rows_markup
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);
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}
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/**
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* Render the related posts markup.
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*
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* @param array $attributes Block attributes.
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* @return string
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*/
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public function render_block( $attributes ) {
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$block_attributes = array(
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'headline' => isset( $attributes['headline'] ) ? $attributes['headline'] : null,
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'show_thumbnails' => isset( $attributes['displayThumbnails'] ) && $attributes['displayThumbnails'],
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'show_date' => isset( $attributes['displayDate'] ) ? (bool) $attributes['displayDate'] : true,
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'show_context' => isset( $attributes['displayContext'] ) && $attributes['displayContext'],
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'layout' => isset( $attributes['postLayout'] ) && 'list' === $attributes['postLayout'] ? $attributes['postLayout'] : 'grid',
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'size' => ! empty( $attributes['postsToShow'] ) ? absint( $attributes['postsToShow'] ) : 3,
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);
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$excludes = $this->parse_numeric_get_arg( 'relatedposts_origin' );
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$target_to_dom_priority = has_filter(
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'the_content',
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array( $this, 'filter_add_target_to_dom' )
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);
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remove_filter(
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'the_content',
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array( $this, 'filter_add_target_to_dom' ),
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$target_to_dom_priority
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);
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$related_posts = $this->get_for_post_id(
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get_the_ID(),
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array(
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'size' => $block_attributes['size'],
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'exclude_post_ids' => $excludes,
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)
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);
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$display_lower_row = $block_attributes['size'] > 3;
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if ( empty( $related_posts ) ) {
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return '';
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}
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switch ( count( $related_posts ) ) {
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case 2:
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case 4:
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case 5:
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$top_row_end = 2;
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break;
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default:
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$top_row_end = 3;
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break;
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}
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$upper_row_posts = array_slice( $related_posts, 0, $top_row_end );
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$lower_row_posts = array_slice( $related_posts, $top_row_end );
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$rows_markup = $this->render_block_row( $upper_row_posts, $block_attributes );
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if ( $display_lower_row ) {
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$rows_markup .= $this->render_block_row( $lower_row_posts, $block_attributes );
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}
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/*
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* Below is a hack to get the block content to render correctly.
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*
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* This functionality should be covered in /inc/blocks.php but due to an error,
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* this has not been fixed as of this writing.
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*
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* Alda has submitted a patch to Core in order to have this issue fixed at
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* https://core.trac.wordpress.org/ticket/45495 and
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* made it into WordPress 5.2.
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*
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* @todo update when WP 5.2 is the minimum support version.
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*/
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$priority = has_filter( 'the_content', 'wpautop' );
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remove_filter( 'the_content', 'wpautop', $priority );
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add_filter( 'the_content', '_restore_wpautop_hook', $priority + 1 );
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return sprintf(
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'<nav class="jp-relatedposts-i2" data-layout="%1$s">%2$s%3$s</nav>',
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esc_attr( $block_attributes['layout'] ),
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$block_attributes['headline'],
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$rows_markup
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);
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}
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|
|
/**
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* ========================
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* PUBLIC UTILITY FUNCTIONS
|
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* ========================
|
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*/
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|
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/**
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* Parse a numeric GET variable to an array of values.
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*
|
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* @since 6.9.0
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*
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* @uses absint
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*
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* @param string $arg Name of the GET variable
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* @return array $result Parsed value(s)
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*/
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public function parse_numeric_get_arg( $arg ) {
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$result = array();
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if ( isset( $_GET[ $arg ] ) ) {
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if ( is_string( $_GET[ $arg ] ) ) {
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$result = explode( ',', $_GET[ $arg ] );
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} elseif ( is_array( $_GET[ $arg ] ) ) {
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$result = array_values( $_GET[ $arg ] );
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}
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$result = array_unique( array_filter( array_map( 'absint', $result ) ) );
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}
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return $result;
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}
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|
|
/**
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|
* Gets options set for Jetpack_RelatedPosts and merge with defaults.
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|
*
|
|
* @uses Jetpack_Options::get_option, apply_filters
|
|
* @return array
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*/
|
|
public function get_options() {
|
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if ( null === $this->_options ) {
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$this->_options = Jetpack_Options::get_option( 'relatedposts', array() );
|
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if ( ! is_array( $this->_options ) )
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$this->_options = array();
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if ( ! isset( $this->_options['enabled'] ) )
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$this->_options['enabled'] = true;
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if ( ! isset( $this->_options['show_headline'] ) )
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$this->_options['show_headline'] = true;
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if ( ! isset( $this->_options['show_thumbnails'] ) )
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$this->_options['show_thumbnails'] = false;
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if ( ! isset( $this->_options['show_date'] ) ) {
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$this->_options['show_date'] = true;
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}
|
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if ( ! isset( $this->_options['show_context'] ) ) {
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$this->_options['show_context'] = true;
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}
|
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if ( ! isset( $this->_options['layout'] ) ) {
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$this->_options['layout'] = 'grid';
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}
|
|
if ( ! isset( $this->_options['headline'] ) ) {
|
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$this->_options['headline'] = esc_html__( 'Related', 'jetpack' );
|
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}
|
|
if ( empty( $this->_options['size'] ) || (int)$this->_options['size'] < 1 )
|
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$this->_options['size'] = 3;
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/**
|
|
* Filter Related Posts basic options.
|
|
*
|
|
* @module related-posts
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @param array $this->_options Array of basic Related Posts options.
|
|
*/
|
|
$this->_options = apply_filters( 'jetpack_relatedposts_filter_options', $this->_options );
|
|
}
|
|
|
|
return $this->_options;
|
|
}
|
|
|
|
public function get_option( $option_name ) {
|
|
$options = $this->get_options();
|
|
|
|
if ( isset( $options[ $option_name ] ) ) {
|
|
return $options[ $option_name ];
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Parses input and returns normalized options array.
|
|
*
|
|
* @param array $input
|
|
* @uses self::get_options
|
|
* @return array
|
|
*/
|
|
public function parse_options( $input ) {
|
|
$current = $this->get_options();
|
|
|
|
if ( !is_array( $input ) )
|
|
$input = array();
|
|
|
|
if (
|
|
! isset( $input['enabled'] )
|
|
|| isset( $input['show_date'] )
|
|
|| isset( $input['show_context'] )
|
|
|| isset( $input['layout'] )
|
|
|| isset( $input['headline'] )
|
|
) {
|
|
$input['enabled'] = '1';
|
|
}
|
|
|
|
if ( '1' == $input['enabled'] ) {
|
|
$current['enabled'] = true;
|
|
$current['show_headline'] = ( isset( $input['show_headline'] ) && '1' == $input['show_headline'] );
|
|
$current['show_thumbnails'] = ( isset( $input['show_thumbnails'] ) && '1' == $input['show_thumbnails'] );
|
|
$current['show_date'] = ( isset( $input['show_date'] ) && '1' == $input['show_date'] );
|
|
$current['show_context'] = ( isset( $input['show_context'] ) && '1' == $input['show_context'] );
|
|
$current['layout'] = isset( $input['layout'] ) && in_array( $input['layout'], array( 'grid', 'list' ), true ) ? $input['layout'] : 'grid';
|
|
$current['headline'] = isset( $input['headline'] ) ? $input['headline'] : esc_html__( 'Related', 'jetpack' );
|
|
} else {
|
|
$current['enabled'] = false;
|
|
}
|
|
|
|
if ( isset( $input['size'] ) && (int)$input['size'] > 0 )
|
|
$current['size'] = (int)$input['size'];
|
|
else
|
|
$current['size'] = null;
|
|
|
|
return $current;
|
|
}
|
|
|
|
/**
|
|
* HTML for admin settings page.
|
|
*
|
|
* @uses self::get_options, checked, esc_html__
|
|
* @returns null
|
|
*/
|
|
public function print_setting_html() {
|
|
$options = $this->get_options();
|
|
|
|
$ui_settings_template = <<<EOT
|
|
<p class="description">%s</p>
|
|
<ul id="settings-reading-relatedposts-customize">
|
|
<li>
|
|
<label><input name="jetpack_relatedposts[show_headline]" type="checkbox" value="1" %s /> %s</label>
|
|
</li>
|
|
<li>
|
|
<label><input name="jetpack_relatedposts[show_thumbnails]" type="checkbox" value="1" %s /> %s</label>
|
|
</li>
|
|
<li>
|
|
<label><input name="jetpack_relatedposts[show_date]" type="checkbox" value="1" %s /> %s</label>
|
|
</li>
|
|
<li>
|
|
<label><input name="jetpack_relatedposts[show_context]" type="checkbox" value="1" %s /> %s</label>
|
|
</li>
|
|
</ul>
|
|
<div id='settings-reading-relatedposts-preview'>
|
|
%s
|
|
<div id="jp-relatedposts" class="jp-relatedposts"></div>
|
|
</div>
|
|
EOT;
|
|
$ui_settings = sprintf(
|
|
$ui_settings_template,
|
|
esc_html__( 'The following settings will impact all related posts on your site, except for those you created via the block editor:', 'jetpack' ),
|
|
checked( $options['show_headline'], true, false ),
|
|
esc_html__( 'Highlight related content with a heading', 'jetpack' ),
|
|
checked( $options['show_thumbnails'], true, false ),
|
|
esc_html__( 'Show a thumbnail image where available', 'jetpack' ),
|
|
checked( $options['show_date'], true, false ),
|
|
esc_html__( 'Show entry date', 'jetpack' ),
|
|
checked( $options['show_context'], true, false ),
|
|
esc_html__( 'Show context (category or tag)', 'jetpack' ),
|
|
esc_html__( 'Preview:', 'jetpack' )
|
|
);
|
|
|
|
if ( !$this->_allow_feature_toggle() ) {
|
|
$template = <<<EOT
|
|
<input type="hidden" name="jetpack_relatedposts[enabled]" value="1" />
|
|
%s
|
|
EOT;
|
|
printf(
|
|
$template,
|
|
$ui_settings
|
|
);
|
|
} else {
|
|
$template = <<<EOT
|
|
<ul id="settings-reading-relatedposts">
|
|
<li>
|
|
<label><input type="radio" name="jetpack_relatedposts[enabled]" value="0" class="tog" %s /> %s</label>
|
|
</li>
|
|
<li>
|
|
<label><input type="radio" name="jetpack_relatedposts[enabled]" value="1" class="tog" %s /> %s</label>
|
|
%s
|
|
</li>
|
|
</ul>
|
|
EOT;
|
|
printf(
|
|
$template,
|
|
checked( $options['enabled'], false, false ),
|
|
esc_html__( 'Hide related content after posts', 'jetpack' ),
|
|
checked( $options['enabled'], true, false ),
|
|
esc_html__( 'Show related content after posts', 'jetpack' ),
|
|
$ui_settings
|
|
);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Head JS/CSS for admin settings page.
|
|
*
|
|
* @uses esc_html__
|
|
* @returns null
|
|
*/
|
|
public function print_setting_head() {
|
|
|
|
// only dislay the Related Posts JavaScript on the Reading Settings Admin Page
|
|
$current_screen = get_current_screen();
|
|
|
|
if ( is_null( $current_screen ) ) {
|
|
return;
|
|
}
|
|
|
|
if( 'options-reading' != $current_screen->id )
|
|
return;
|
|
|
|
$related_headline = sprintf(
|
|
'<h3 class="jp-relatedposts-headline"><em>%s</em></h3>',
|
|
esc_html__( 'Related', 'jetpack' )
|
|
);
|
|
|
|
$href_params = 'class="jp-relatedposts-post-a" href="#jetpack_relatedposts" rel="nofollow" data-origin="0" data-position="0"';
|
|
$related_with_images = <<<EOT
|
|
<div class="jp-relatedposts-items jp-relatedposts-items-visual">
|
|
<div class="jp-relatedposts-post jp-relatedposts-post0 jp-relatedposts-post-thumbs" data-post-id="0" data-post-format="image">
|
|
<a $href_params>
|
|
<img class="jp-relatedposts-post-img" src="https://jetpackme.files.wordpress.com/2019/03/cat-blog.png" width="350" alt="Big iPhone/iPad Update Now Available" scale="0">
|
|
</a>
|
|
<h4 class="jp-relatedposts-post-title">
|
|
<a $href_params>Big iPhone/iPad Update Now Available</a>
|
|
</h4>
|
|
<p class="jp-relatedposts-post-excerpt">Big iPhone/iPad Update Now Available</p>
|
|
<p class="jp-relatedposts-post-context">In "Mobile"</p>
|
|
</div>
|
|
<div class="jp-relatedposts-post jp-relatedposts-post1 jp-relatedposts-post-thumbs" data-post-id="0" data-post-format="image">
|
|
<a $href_params>
|
|
<img class="jp-relatedposts-post-img" src="https://jetpackme.files.wordpress.com/2019/03/devices.jpg" width="350" alt="The WordPress for Android App Gets a Big Facelift" scale="0">
|
|
</a>
|
|
<h4 class="jp-relatedposts-post-title">
|
|
<a $href_params>The WordPress for Android App Gets a Big Facelift</a>
|
|
</h4>
|
|
<p class="jp-relatedposts-post-excerpt">The WordPress for Android App Gets a Big Facelift</p>
|
|
<p class="jp-relatedposts-post-context">In "Mobile"</p>
|
|
</div>
|
|
<div class="jp-relatedposts-post jp-relatedposts-post2 jp-relatedposts-post-thumbs" data-post-id="0" data-post-format="image">
|
|
<a $href_params>
|
|
<img class="jp-relatedposts-post-img" src="https://jetpackme.files.wordpress.com/2019/03/mobile-wedding.jpg" width="350" alt="Upgrade Focus: VideoPress For Weddings" scale="0">
|
|
</a>
|
|
<h4 class="jp-relatedposts-post-title">
|
|
<a $href_params>Upgrade Focus: VideoPress For Weddings</a>
|
|
</h4>
|
|
<p class="jp-relatedposts-post-excerpt">Upgrade Focus: VideoPress For Weddings</p>
|
|
<p class="jp-relatedposts-post-context">In "Upgrade"</p>
|
|
</div>
|
|
</div>
|
|
EOT;
|
|
$related_with_images = str_replace( "\n", '', $related_with_images );
|
|
$related_without_images = <<<EOT
|
|
<div class="jp-relatedposts-items jp-relatedposts-items-minimal">
|
|
<p class="jp-relatedposts-post jp-relatedposts-post0" data-post-id="0" data-post-format="image">
|
|
<span class="jp-relatedposts-post-title"><a $href_params>Big iPhone/iPad Update Now Available</a></span>
|
|
<span class="jp-relatedposts-post-context">In "Mobile"</span>
|
|
</p>
|
|
<p class="jp-relatedposts-post jp-relatedposts-post1" data-post-id="0" data-post-format="image">
|
|
<span class="jp-relatedposts-post-title"><a $href_params>The WordPress for Android App Gets a Big Facelift</a></span>
|
|
<span class="jp-relatedposts-post-context">In "Mobile"</span>
|
|
</p>
|
|
<p class="jp-relatedposts-post jp-relatedposts-post2" data-post-id="0" data-post-format="image">
|
|
<span class="jp-relatedposts-post-title"><a $href_params>Upgrade Focus: VideoPress For Weddings</a></span>
|
|
<span class="jp-relatedposts-post-context">In "Upgrade"</span>
|
|
</p>
|
|
</div>
|
|
EOT;
|
|
$related_without_images = str_replace( "\n", '', $related_without_images );
|
|
|
|
if ( $this->_allow_feature_toggle() ) {
|
|
$extra_css = '#settings-reading-relatedposts-customize { padding-left:2em; margin-top:.5em; }';
|
|
} else {
|
|
$extra_css = '';
|
|
}
|
|
|
|
echo <<<EOT
|
|
<style type="text/css">
|
|
#settings-reading-relatedposts .disabled { opacity:.5; filter:Alpha(opacity=50); }
|
|
#settings-reading-relatedposts-preview .jp-relatedposts { background:#fff; padding:.5em; width:75%; }
|
|
$extra_css
|
|
</style>
|
|
<script type="text/javascript">
|
|
jQuery( document ).ready( function($) {
|
|
var update_ui = function() {
|
|
var is_enabled = true;
|
|
if ( 'radio' == $( 'input[name="jetpack_relatedposts[enabled]"]' ).attr('type') ) {
|
|
if ( '0' == $( 'input[name="jetpack_relatedposts[enabled]"]:checked' ).val() ) {
|
|
is_enabled = false;
|
|
}
|
|
}
|
|
if ( is_enabled ) {
|
|
$( '#settings-reading-relatedposts-customize' )
|
|
.removeClass( 'disabled' )
|
|
.find( 'input' )
|
|
.attr( 'disabled', false );
|
|
$( '#settings-reading-relatedposts-preview' )
|
|
.removeClass( 'disabled' );
|
|
} else {
|
|
$( '#settings-reading-relatedposts-customize' )
|
|
.addClass( 'disabled' )
|
|
.find( 'input' )
|
|
.attr( 'disabled', true );
|
|
$( '#settings-reading-relatedposts-preview' )
|
|
.addClass( 'disabled' );
|
|
}
|
|
};
|
|
|
|
var update_preview = function() {
|
|
var html = '';
|
|
if ( $( 'input[name="jetpack_relatedposts[show_headline]"]:checked' ).length ) {
|
|
html += '$related_headline';
|
|
}
|
|
if ( $( 'input[name="jetpack_relatedposts[show_thumbnails]"]:checked' ).length ) {
|
|
html += '$related_with_images';
|
|
} else {
|
|
html += '$related_without_images';
|
|
}
|
|
$( '#settings-reading-relatedposts-preview .jp-relatedposts' ).html( html );
|
|
if ( $( 'input[name="jetpack_relatedposts[show_date]"]:checked' ).length ) {
|
|
$( '.jp-relatedposts-post-title' ).each( function() {
|
|
$( this ).after( $( '<span>August 8, 2005</span>' ) );
|
|
} );
|
|
}
|
|
if ( $( 'input[name="jetpack_relatedposts[show_context]"]:checked' ).length ) {
|
|
$( '.jp-relatedposts-post-context' ).show();
|
|
} else {
|
|
$( '.jp-relatedposts-post-context' ).hide();
|
|
}
|
|
$( '#settings-reading-relatedposts-preview .jp-relatedposts' ).show();
|
|
};
|
|
|
|
// Update on load
|
|
update_preview();
|
|
update_ui();
|
|
|
|
// Update on change
|
|
$( '#settings-reading-relatedposts-customize input' )
|
|
.change( update_preview );
|
|
$( '#settings-reading-relatedposts' )
|
|
.find( 'input.tog' )
|
|
.change( update_ui );
|
|
});
|
|
</script>
|
|
EOT;
|
|
}
|
|
|
|
/**
|
|
* Gets an array of related posts that match the given post_id.
|
|
*
|
|
* @param int $post_id Post which we want to find related posts for.
|
|
* @param array $args - params to use when building Elasticsearch filters to narrow down the search domain.
|
|
* @uses self::get_options, get_post_type, wp_parse_args, apply_filters
|
|
* @return array
|
|
*/
|
|
public function get_for_post_id( $post_id, array $args ) {
|
|
$options = $this->get_options();
|
|
|
|
if ( ! empty( $args['size'] ) ) {
|
|
$options['size'] = $args['size'];
|
|
}
|
|
|
|
if (
|
|
! $options['enabled']
|
|
|| 0 === (int) $post_id
|
|
|| empty( $options['size'] )
|
|
) {
|
|
return array();
|
|
}
|
|
|
|
$defaults = array(
|
|
'size' => (int) $options['size'],
|
|
'post_type' => get_post_type( $post_id ),
|
|
'post_formats' => array(),
|
|
'has_terms' => array(),
|
|
'date_range' => array(),
|
|
'exclude_post_ids' => array(),
|
|
);
|
|
$args = wp_parse_args( $args, $defaults );
|
|
/**
|
|
* Filter the arguments used to retrieve a list of Related Posts.
|
|
*
|
|
* @module related-posts
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @param array $args Array of options to retrieve Related Posts.
|
|
* @param string $post_id Post ID of the post for which we are retrieving Related Posts.
|
|
*/
|
|
$args = apply_filters( 'jetpack_relatedposts_filter_args', $args, $post_id );
|
|
|
|
$filters = $this->_get_es_filters_from_args( $post_id, $args );
|
|
/**
|
|
* Filter Elasticsearch options used to calculate Related Posts.
|
|
*
|
|
* @module related-posts
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @param array $filters Array of Elasticsearch filters based on the post_id and args.
|
|
* @param string $post_id Post ID of the post for which we are retrieving Related Posts.
|
|
*/
|
|
$filters = apply_filters( 'jetpack_relatedposts_filter_filters', $filters, $post_id );
|
|
|
|
$results = $this->_get_related_posts( $post_id, $args['size'], $filters );
|
|
/**
|
|
* Filter the array of related posts matched by Elasticsearch.
|
|
*
|
|
* @module related-posts
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @param array $results Array of related posts matched by Elasticsearch.
|
|
* @param string $post_id Post ID of the post for which we are retrieving Related Posts.
|
|
*/
|
|
return apply_filters( 'jetpack_relatedposts_returned_results', $results, $post_id );
|
|
}
|
|
|
|
/**
|
|
* =========================
|
|
* PRIVATE UTILITY FUNCTIONS
|
|
* =========================
|
|
*/
|
|
|
|
/**
|
|
* Creates an array of Elasticsearch filters based on the post_id and args.
|
|
*
|
|
* @param int $post_id
|
|
* @param array $args
|
|
* @uses apply_filters, get_post_types, get_post_format_strings
|
|
* @return array
|
|
*/
|
|
protected function _get_es_filters_from_args( $post_id, array $args ) {
|
|
$filters = array();
|
|
|
|
/**
|
|
* Filter the terms used to search for Related Posts.
|
|
*
|
|
* @module related-posts
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @param array $args['has_terms'] Array of terms associated to the Related Posts.
|
|
* @param string $post_id Post ID of the post for which we are retrieving Related Posts.
|
|
*/
|
|
$args['has_terms'] = apply_filters( 'jetpack_relatedposts_filter_has_terms', $args['has_terms'], $post_id );
|
|
if ( ! empty( $args['has_terms'] ) ) {
|
|
foreach( (array)$args['has_terms'] as $term ) {
|
|
if ( mb_strlen( $term->taxonomy ) ) {
|
|
switch ( $term->taxonomy ) {
|
|
case 'post_tag':
|
|
$tax_fld = 'tag.slug';
|
|
break;
|
|
case 'category':
|
|
$tax_fld = 'category.slug';
|
|
break;
|
|
default:
|
|
$tax_fld = 'taxonomy.' . $term->taxonomy . '.slug';
|
|
break;
|
|
}
|
|
$filters[] = array( 'term' => array( $tax_fld => $term->slug ) );
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Filter the Post Types where we search Related Posts.
|
|
*
|
|
* @module related-posts
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @param array $args['post_type'] Array of Post Types.
|
|
* @param string $post_id Post ID of the post for which we are retrieving Related Posts.
|
|
*/
|
|
$args['post_type'] = apply_filters( 'jetpack_relatedposts_filter_post_type', $args['post_type'], $post_id );
|
|
$valid_post_types = get_post_types();
|
|
if ( is_array( $args['post_type'] ) ) {
|
|
$sanitized_post_types = array();
|
|
foreach ( $args['post_type'] as $pt ) {
|
|
if ( in_array( $pt, $valid_post_types ) )
|
|
$sanitized_post_types[] = $pt;
|
|
}
|
|
if ( ! empty( $sanitized_post_types ) )
|
|
$filters[] = array( 'terms' => array( 'post_type' => $sanitized_post_types ) );
|
|
} else if ( in_array( $args['post_type'], $valid_post_types ) && 'all' != $args['post_type'] ) {
|
|
$filters[] = array( 'term' => array( 'post_type' => $args['post_type'] ) );
|
|
}
|
|
|
|
/**
|
|
* Filter the Post Formats where we search Related Posts.
|
|
*
|
|
* @module related-posts
|
|
*
|
|
* @since 3.3.0
|
|
*
|
|
* @param array $args['post_formats'] Array of Post Formats.
|
|
* @param string $post_id Post ID of the post for which we are retrieving Related Posts.
|
|
*/
|
|
$args['post_formats'] = apply_filters( 'jetpack_relatedposts_filter_post_formats', $args['post_formats'], $post_id );
|
|
$valid_post_formats = get_post_format_strings();
|
|
$sanitized_post_formats = array();
|
|
foreach ( $args['post_formats'] as $pf ) {
|
|
if ( array_key_exists( $pf, $valid_post_formats ) ) {
|
|
$sanitized_post_formats[] = $pf;
|
|
}
|
|
}
|
|
if ( ! empty( $sanitized_post_formats ) ) {
|
|
$filters[] = array( 'terms' => array( 'post_format' => $sanitized_post_formats ) );
|
|
}
|
|
|
|
/**
|
|
* Filter the date range used to search Related Posts.
|
|
*
|
|
* @module related-posts
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @param array $args['date_range'] Array of a month interval where we search Related Posts.
|
|
* @param string $post_id Post ID of the post for which we are retrieving Related Posts.
|
|
*/
|
|
$args['date_range'] = apply_filters( 'jetpack_relatedposts_filter_date_range', $args['date_range'], $post_id );
|
|
if ( is_array( $args['date_range'] ) && ! empty( $args['date_range'] ) ) {
|
|
$args['date_range'] = array_map( 'intval', $args['date_range'] );
|
|
if ( !empty( $args['date_range']['from'] ) && !empty( $args['date_range']['to'] ) ) {
|
|
$filters[] = array(
|
|
'range' => array(
|
|
'date_gmt' => $this->_get_coalesced_range( $args['date_range'] ),
|
|
)
|
|
);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Filter the Post IDs excluded from appearing in Related Posts.
|
|
*
|
|
* @module related-posts
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @param array $args['exclude_post_ids'] Array of Post IDs.
|
|
* @param string $post_id Post ID of the post for which we are retrieving Related Posts.
|
|
*/
|
|
$args['exclude_post_ids'] = apply_filters( 'jetpack_relatedposts_filter_exclude_post_ids', $args['exclude_post_ids'], $post_id );
|
|
if ( !empty( $args['exclude_post_ids'] ) && is_array( $args['exclude_post_ids'] ) ) {
|
|
$excluded_post_ids = array();
|
|
foreach ( $args['exclude_post_ids'] as $exclude_post_id) {
|
|
$exclude_post_id = (int)$exclude_post_id;
|
|
if ( $exclude_post_id > 0 )
|
|
$excluded_post_ids[] = $exclude_post_id;
|
|
}
|
|
$filters[] = array( 'not' => array( 'terms' => array( 'post_id' => $excluded_post_ids ) ) );
|
|
}
|
|
|
|
return $filters;
|
|
}
|
|
|
|
/**
|
|
* Takes a range and coalesces it into a month interval bracketed by a time as determined by the blog_id to enhance caching.
|
|
*
|
|
* @param array $date_range
|
|
* @return array
|
|
*/
|
|
protected function _get_coalesced_range( array $date_range ) {
|
|
$now = time();
|
|
$coalesce_time = $this->get_blog_id() % 86400;
|
|
$current_time = $now - strtotime( 'today', $now );
|
|
|
|
if ( $current_time < $coalesce_time && '01' == date( 'd', $now ) ) {
|
|
// Move back 1 period
|
|
return array(
|
|
'from' => date( 'Y-m-01', strtotime( '-1 month', $date_range['from'] ) ) . ' ' . date( 'H:i:s', $coalesce_time ),
|
|
'to' => date( 'Y-m-01', $date_range['to'] ) . ' ' . date( 'H:i:s', $coalesce_time ),
|
|
);
|
|
} else {
|
|
// Use current period
|
|
return array(
|
|
'from' => date( 'Y-m-01', $date_range['from'] ) . ' ' . date( 'H:i:s', $coalesce_time ),
|
|
'to' => date( 'Y-m-01', strtotime( '+1 month', $date_range['to'] ) ) . ' ' . date( 'H:i:s', $coalesce_time ),
|
|
);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Generate and output ajax response for related posts API call.
|
|
* NOTE: Calls exit() to end all further processing after payload has been outputed.
|
|
*
|
|
* @param array $excludes array of post_ids to exclude
|
|
* @uses send_nosniff_header, self::get_for_post_id, get_the_ID
|
|
* @return null
|
|
*/
|
|
protected function _action_frontend_init_ajax( array $excludes ) {
|
|
define( 'DOING_AJAX', true );
|
|
|
|
header( 'Content-type: application/json; charset=utf-8' ); // JSON can only be UTF-8
|
|
send_nosniff_header();
|
|
|
|
$options = $this->get_options();
|
|
|
|
if ( isset( $_GET['jetpackrpcustomize'] ) ) {
|
|
|
|
// If we're in the customizer, add dummy content.
|
|
$date_now = current_time( get_option( 'date_format' ) );
|
|
$related_posts = array(
|
|
array(
|
|
'id' => - 1,
|
|
'url' => 'https://jetpackme.files.wordpress.com/2019/03/cat-blog.png',
|
|
'url_meta' => array(
|
|
'origin' => 0,
|
|
'position' => 0
|
|
),
|
|
'title' => esc_html__( 'Big iPhone/iPad Update Now Available', 'jetpack' ),
|
|
'date' => $date_now,
|
|
'format' => false,
|
|
'excerpt' => esc_html__( 'It is that time of the year when devices are shiny again.', 'jetpack' ),
|
|
'rel' => 'nofollow',
|
|
'context' => esc_html__( 'In "Mobile"', 'jetpack' ),
|
|
'img' => array(
|
|
'src' => 'https://jetpackme.files.wordpress.com/2019/03/cat-blog.png',
|
|
'width' => 350,
|
|
'height' => 200
|
|
),
|
|
'classes' => array()
|
|
),
|
|
array(
|
|
'id' => - 1,
|
|
'url' => 'https://jetpackme.files.wordpress.com/2019/03/devices.jpg',
|
|
'url_meta' => array(
|
|
'origin' => 0,
|
|
'position' => 0
|
|
),
|
|
'title' => esc_html__( 'The WordPress for Android App Gets a Big Facelift', 'jetpack' ),
|
|
'date' => $date_now,
|
|
'format' => false,
|
|
'excerpt' => esc_html__( 'Writing is new again in Android with the new WordPress app.', 'jetpack' ),
|
|
'rel' => 'nofollow',
|
|
'context' => esc_html__( 'In "Mobile"', 'jetpack' ),
|
|
'img' => array(
|
|
'src' => 'https://jetpackme.files.wordpress.com/2019/03/devices.jpg',
|
|
'width' => 350,
|
|
'height' => 200
|
|
),
|
|
'classes' => array()
|
|
),
|
|
array(
|
|
'id' => - 1,
|
|
'url' => 'https://jetpackme.files.wordpress.com/2019/03/mobile-wedding.jpg',
|
|
'url_meta' => array(
|
|
'origin' => 0,
|
|
'position' => 0
|
|
),
|
|
'title' => esc_html__( 'Upgrade Focus, VideoPress for weddings', 'jetpack' ),
|
|
'date' => $date_now,
|
|
'format' => false,
|
|
'excerpt' => esc_html__( 'Weddings are in the spotlight now with VideoPress for weddings.', 'jetpack' ),
|
|
'rel' => 'nofollow',
|
|
'context' => esc_html__( 'In "Mobile"', 'jetpack' ),
|
|
'img' => array(
|
|
'src' => 'https://jetpackme.files.wordpress.com/2019/03/mobile-wedding.jpg',
|
|
'width' => 350,
|
|
'height' => 200
|
|
),
|
|
'classes' => array()
|
|
),
|
|
);
|
|
|
|
for ( $total = 0; $total < $options['size'] - 3; $total++ ) {
|
|
$related_posts[] = $related_posts[ $total ];
|
|
}
|
|
|
|
$current_post = get_post();
|
|
|
|
// Exclude current post after filtering to make sure it's excluded and not lost during filtering.
|
|
$excluded_posts = array_merge(
|
|
/** This filter is already documented in modules/related-posts/jetpack-related-posts.php */
|
|
apply_filters( 'jetpack_relatedposts_filter_exclude_post_ids', array() ),
|
|
array( $current_post->ID )
|
|
);
|
|
|
|
// Fetch posts with featured image.
|
|
$with_post_thumbnails = get_posts( array(
|
|
'posts_per_page' => $options['size'],
|
|
'post__not_in' => $excluded_posts,
|
|
'post_type' => $current_post->post_type,
|
|
'meta_key' => '_thumbnail_id',
|
|
'suppress_filters' => false,
|
|
) );
|
|
|
|
// If we don't have enough, fetch posts without featured image.
|
|
if ( 0 < ( $more = $options['size'] - count( $with_post_thumbnails ) ) ) {
|
|
$no_post_thumbnails = get_posts( array(
|
|
'posts_per_page' => $more,
|
|
'post__not_in' => $excluded_posts,
|
|
'post_type' => $current_post->post_type,
|
|
'meta_query' => array(
|
|
array(
|
|
'key' => '_thumbnail_id',
|
|
'compare' => 'NOT EXISTS',
|
|
),
|
|
),
|
|
'suppress_filters' => false,
|
|
) );
|
|
} else {
|
|
$no_post_thumbnails = array();
|
|
}
|
|
|
|
foreach ( array_merge( $with_post_thumbnails, $no_post_thumbnails ) as $index => $real_post ) {
|
|
$related_posts[ $index ]['id'] = $real_post->ID;
|
|
$related_posts[ $index ]['url'] = esc_url( get_permalink( $real_post ) );
|
|
$related_posts[ $index ]['title'] = $this->_to_utf8( $this->_get_title( $real_post->post_title, $real_post->post_content ) );
|
|
$related_posts[ $index ]['date'] = get_the_date( '', $real_post );
|
|
$related_posts[ $index ]['excerpt'] = html_entity_decode( $this->_to_utf8( $this->_get_excerpt( $real_post->post_excerpt, $real_post->post_content ) ), ENT_QUOTES, 'UTF-8' );
|
|
$related_posts[ $index ]['img'] = $this->_generate_related_post_image_params( $real_post->ID );
|
|
$related_posts[ $index ]['context'] = $this->_generate_related_post_context( $real_post->ID );
|
|
}
|
|
} else {
|
|
$related_posts = $this->get_for_post_id(
|
|
get_the_ID(),
|
|
array(
|
|
'exclude_post_ids' => $excludes,
|
|
)
|
|
);
|
|
}
|
|
|
|
$response = array(
|
|
'version' => self::VERSION,
|
|
'show_thumbnails' => (bool) $options['show_thumbnails'],
|
|
'show_date' => (bool) $options['show_date'],
|
|
'show_context' => (bool) $options['show_context'],
|
|
'layout' => (string) $options['layout'],
|
|
'headline' => (string) $options['headline'],
|
|
'items' => array(),
|
|
);
|
|
|
|
if ( count( $related_posts ) == $options['size'] )
|
|
$response['items'] = $related_posts;
|
|
|
|
echo json_encode( $response );
|
|
|
|
exit();
|
|
}
|
|
|
|
/**
|
|
* Returns a UTF-8 encoded array of post information for the given post_id
|
|
*
|
|
* @param int $post_id
|
|
* @param int $position
|
|
* @param int $origin The post id that this is related to
|
|
* @uses get_post, get_permalink, remove_query_arg, get_post_format, apply_filters
|
|
* @return array
|
|
*/
|
|
public function get_related_post_data_for_post( $post_id, $position, $origin ) {
|
|
$post = get_post( $post_id );
|
|
|
|
return array(
|
|
'id' => $post->ID,
|
|
'url' => get_permalink( $post->ID ),
|
|
'url_meta' => array( 'origin' => $origin, 'position' => $position ),
|
|
'title' => $this->_to_utf8( $this->_get_title( $post->post_title, $post->post_content ) ),
|
|
'date' => get_the_date( '', $post->ID ),
|
|
'format' => get_post_format( $post->ID ),
|
|
'excerpt' => html_entity_decode( $this->_to_utf8( $this->_get_excerpt( $post->post_excerpt, $post->post_content ) ), ENT_QUOTES, 'UTF-8' ),
|
|
/**
|
|
* Filters the rel attribute for the Related Posts' links.
|
|
*
|
|
* @module related-posts
|
|
*
|
|
* @since 3.7.0
|
|
*
|
|
* @param string nofollow Link rel attribute for Related Posts' link. Default is nofollow.
|
|
* @param int $post->ID Post ID.
|
|
*/
|
|
'rel' => apply_filters( 'jetpack_relatedposts_filter_post_link_rel', 'nofollow', $post->ID ),
|
|
/**
|
|
* Filter the context displayed below each Related Post.
|
|
*
|
|
* @module related-posts
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @param string $this->_to_utf8( $this->_generate_related_post_context( $post->ID ) ) Context displayed below each related post.
|
|
* @param string $post_id Post ID of the post for which we are retrieving Related Posts.
|
|
*/
|
|
'context' => apply_filters(
|
|
'jetpack_relatedposts_filter_post_context',
|
|
$this->_to_utf8( $this->_generate_related_post_context( $post->ID ) ),
|
|
$post->ID
|
|
),
|
|
'img' => $this->_generate_related_post_image_params( $post->ID ),
|
|
/**
|
|
* Filter the post css classes added on HTML markup.
|
|
*
|
|
* @module related-posts
|
|
*
|
|
* @since 3.8.0
|
|
*
|
|
* @param array array() CSS classes added on post HTML markup.
|
|
* @param string $post_id Post ID.
|
|
*/
|
|
'classes' => apply_filters(
|
|
'jetpack_relatedposts_filter_post_css_classes',
|
|
array(),
|
|
$post->ID
|
|
),
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Returns either the title or a small excerpt to use as title for post.
|
|
*
|
|
* @param string $post_title
|
|
* @param string $post_content
|
|
* @uses strip_shortcodes, wp_trim_words, __
|
|
* @return string
|
|
*/
|
|
protected function _get_title( $post_title, $post_content ) {
|
|
if ( ! empty( $post_title ) ) {
|
|
return wp_strip_all_tags( $post_title );
|
|
}
|
|
|
|
$post_title = wp_trim_words( wp_strip_all_tags( strip_shortcodes( $post_content ) ), 5, '…' );
|
|
if ( ! empty( $post_title ) ) {
|
|
return $post_title;
|
|
}
|
|
|
|
return __( 'Untitled Post', 'jetpack' );
|
|
}
|
|
|
|
/**
|
|
* Returns a plain text post excerpt for title attribute of links.
|
|
*
|
|
* @param string $post_excerpt
|
|
* @param string $post_content
|
|
* @uses strip_shortcodes, wp_strip_all_tags, wp_trim_words
|
|
* @return string
|
|
*/
|
|
protected function _get_excerpt( $post_excerpt, $post_content ) {
|
|
if ( empty( $post_excerpt ) )
|
|
$excerpt = $post_content;
|
|
else
|
|
$excerpt = $post_excerpt;
|
|
|
|
return wp_trim_words( wp_strip_all_tags( strip_shortcodes( $excerpt ) ), 50, '…' );
|
|
}
|
|
|
|
/**
|
|
* Generates the thumbnail image to be used for the post. Uses the
|
|
* image as returned by Jetpack_PostImages::get_image()
|
|
*
|
|
* @param int $post_id
|
|
* @uses self::get_options, apply_filters, Jetpack_PostImages::get_image, Jetpack_PostImages::fit_image_url
|
|
* @return string
|
|
*/
|
|
protected function _generate_related_post_image_params( $post_id ) {
|
|
$options = $this->get_options();
|
|
$image_params = array(
|
|
'alt_text' => '',
|
|
'src' => '',
|
|
'width' => 0,
|
|
'height' => 0,
|
|
);
|
|
|
|
/**
|
|
* Filter the size of the Related Posts images.
|
|
*
|
|
* @module related-posts
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @param array array( 'width' => 350, 'height' => 200 ) Size of the images displayed below each Related Post.
|
|
*/
|
|
$thumbnail_size = apply_filters(
|
|
'jetpack_relatedposts_filter_thumbnail_size',
|
|
array( 'width' => 350, 'height' => 200 )
|
|
);
|
|
if ( !is_array( $thumbnail_size ) ) {
|
|
$thumbnail_size = array(
|
|
'width' => (int)$thumbnail_size,
|
|
'height' => (int)$thumbnail_size
|
|
);
|
|
}
|
|
|
|
// Try to get post image
|
|
if ( class_exists( 'Jetpack_PostImages' ) ) {
|
|
$img_url = '';
|
|
$post_image = Jetpack_PostImages::get_image(
|
|
$post_id,
|
|
$thumbnail_size
|
|
);
|
|
|
|
if ( is_array($post_image) ) {
|
|
$img_url = $post_image['src'];
|
|
} elseif ( class_exists( 'Jetpack_Media_Summary' ) ) {
|
|
$media = Jetpack_Media_Summary::get( $post_id );
|
|
|
|
if ( is_array($media) && !empty( $media['image'] ) ) {
|
|
$img_url = $media['image'];
|
|
}
|
|
}
|
|
|
|
if ( ! empty( $img_url ) ) {
|
|
if ( ! empty( $post_image['alt_text'] ) ) {
|
|
$image_params['alt_text'] = $post_image['alt_text'];
|
|
} else {
|
|
$image_params['alt_text'] = '';
|
|
}
|
|
$image_params['width'] = $thumbnail_size['width'];
|
|
$image_params['height'] = $thumbnail_size['height'];
|
|
$image_params['src'] = Jetpack_PostImages::fit_image_url(
|
|
$img_url,
|
|
$thumbnail_size['width'],
|
|
$thumbnail_size['height']
|
|
);
|
|
}
|
|
}
|
|
|
|
return $image_params;
|
|
}
|
|
|
|
/**
|
|
* Returns the string UTF-8 encoded
|
|
*
|
|
* @param string $text
|
|
* @return string
|
|
*/
|
|
protected function _to_utf8( $text ) {
|
|
if ( $this->_convert_charset ) {
|
|
return iconv( $this->_blog_charset, 'UTF-8', $text );
|
|
} else {
|
|
return $text;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* =============================================
|
|
* PROTECTED UTILITY FUNCTIONS EXTENDED BY WPCOM
|
|
* =============================================
|
|
*/
|
|
|
|
/**
|
|
* Workhorse method to return array of related posts matched by Elasticsearch.
|
|
*
|
|
* @param int $post_id
|
|
* @param int $size
|
|
* @param array $filters
|
|
* @uses wp_remote_post, is_wp_error, get_option, wp_remote_retrieve_body, get_post, add_query_arg, remove_query_arg, get_permalink, get_post_format, apply_filters
|
|
* @return array
|
|
*/
|
|
protected function _get_related_posts( $post_id, $size, array $filters ) {
|
|
$hits = $this->_filter_non_public_posts(
|
|
$this->_get_related_post_ids(
|
|
$post_id,
|
|
$size,
|
|
$filters
|
|
)
|
|
);
|
|
|
|
/**
|
|
* Filter the Related Posts matched by Elasticsearch.
|
|
*
|
|
* @module related-posts
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @param array $hits Array of Post IDs matched by Elasticsearch.
|
|
* @param string $post_id Post ID of the post for which we are retrieving Related Posts.
|
|
*/
|
|
$hits = apply_filters( 'jetpack_relatedposts_filter_hits', $hits, $post_id );
|
|
|
|
$related_posts = array();
|
|
foreach ( $hits as $i => $hit ) {
|
|
$related_posts[] = $this->get_related_post_data_for_post( $hit['id'], $i, $post_id );
|
|
}
|
|
return $related_posts;
|
|
}
|
|
|
|
/**
|
|
* Get array of related posts matched by Elasticsearch.
|
|
*
|
|
* @param int $post_id
|
|
* @param int $size
|
|
* @param array $filters
|
|
* @uses wp_remote_post, is_wp_error, wp_remote_retrieve_body, get_post_meta, update_post_meta
|
|
* @return array
|
|
*/
|
|
protected function _get_related_post_ids( $post_id, $size, array $filters ) {
|
|
$now_ts = time();
|
|
$cache_meta_key = '_jetpack_related_posts_cache';
|
|
|
|
$body = array(
|
|
'size' => (int) $size,
|
|
);
|
|
|
|
if ( !empty( $filters ) )
|
|
$body['filter'] = array( 'and' => $filters );
|
|
|
|
// Build cache key
|
|
$cache_key = md5( serialize( $body ) );
|
|
|
|
// Load all cached values
|
|
if ( wp_using_ext_object_cache() ) {
|
|
$transient_name = "{$cache_meta_key}_{$cache_key}_{$post_id}";
|
|
$cache = get_transient( $transient_name );
|
|
if ( false !== $cache ) {
|
|
return $cache;
|
|
}
|
|
} else {
|
|
$cache = get_post_meta( $post_id, $cache_meta_key, true );
|
|
|
|
if ( empty( $cache ) )
|
|
$cache = array();
|
|
|
|
|
|
// Cache is valid! Return cached value.
|
|
if ( isset( $cache[ $cache_key ] ) && is_array( $cache[ $cache_key ] ) && $cache[ $cache_key ][ 'expires' ] > $now_ts ) {
|
|
return $cache[ $cache_key ][ 'payload' ];
|
|
}
|
|
}
|
|
|
|
$response = wp_remote_post(
|
|
"https://public-api.wordpress.com/rest/v1/sites/{$this->get_blog_id()}/posts/$post_id/related/",
|
|
array(
|
|
'timeout' => 10,
|
|
'user-agent' => 'jetpack_related_posts',
|
|
'sslverify' => true,
|
|
'body' => $body,
|
|
)
|
|
);
|
|
|
|
// Oh no... return nothing don't cache errors.
|
|
if ( is_wp_error( $response ) ) {
|
|
if ( isset( $cache[ $cache_key ] ) && is_array( $cache[ $cache_key ] ) )
|
|
return $cache[ $cache_key ][ 'payload' ]; // return stale
|
|
else
|
|
return array();
|
|
}
|
|
|
|
$results = json_decode( wp_remote_retrieve_body( $response ), true );
|
|
$related_posts = array();
|
|
if ( is_array( $results ) && !empty( $results['hits'] ) ) {
|
|
foreach( $results['hits'] as $hit ) {
|
|
$related_posts[] = array(
|
|
'id' => $hit['fields']['post_id'],
|
|
);
|
|
}
|
|
}
|
|
|
|
// An empty array might indicate no related posts or that posts
|
|
// are not yet synced to WordPress.com, so we cache for only 1
|
|
// minute in this case
|
|
if ( empty( $related_posts ) ) {
|
|
$cache_ttl = 60;
|
|
} else {
|
|
$cache_ttl = 12 * HOUR_IN_SECONDS;
|
|
}
|
|
|
|
// Update cache
|
|
if ( wp_using_ext_object_cache() ) {
|
|
set_transient( $transient_name, $related_posts, $cache_ttl );
|
|
} else {
|
|
// Copy all valid cache values
|
|
$new_cache = array();
|
|
foreach ( $cache as $k => $v ) {
|
|
if ( is_array( $v ) && $v[ 'expires' ] > $now_ts ) {
|
|
$new_cache[ $k ] = $v;
|
|
}
|
|
}
|
|
|
|
// Set new cache value
|
|
$cache_expires = $cache_ttl + $now_ts;
|
|
$new_cache[ $cache_key ] = array(
|
|
'expires' => $cache_expires,
|
|
'payload' => $related_posts,
|
|
);
|
|
update_post_meta( $post_id, $cache_meta_key, $new_cache );
|
|
}
|
|
|
|
return $related_posts;
|
|
}
|
|
|
|
/**
|
|
* Filter out any hits that are not public anymore.
|
|
*
|
|
* @param array $related_posts
|
|
* @uses get_post_stati, get_post_status
|
|
* @return array
|
|
*/
|
|
protected function _filter_non_public_posts( array $related_posts ) {
|
|
$public_stati = get_post_stati( array( 'public' => true ) );
|
|
|
|
$filtered = array();
|
|
foreach ( $related_posts as $hit ) {
|
|
if ( in_array( get_post_status( $hit['id'] ), $public_stati ) ) {
|
|
$filtered[] = $hit;
|
|
}
|
|
}
|
|
return $filtered;
|
|
}
|
|
|
|
/**
|
|
* Generates a context for the related content (second line in related post output).
|
|
* Order of importance:
|
|
* - First category (Not 'Uncategorized')
|
|
* - First post tag
|
|
* - Number of comments
|
|
*
|
|
* @param int $post_id
|
|
* @uses get_the_category, get_the_terms, get_comments_number, number_format_i18n, __, _n
|
|
* @return string
|
|
*/
|
|
protected function _generate_related_post_context( $post_id ) {
|
|
$categories = get_the_category( $post_id );
|
|
if ( is_array( $categories ) ) {
|
|
foreach ( $categories as $category ) {
|
|
if ( 'uncategorized' != $category->slug && '' != trim( $category->name ) ) {
|
|
$post_cat_context = sprintf(
|
|
esc_html_x( 'In "%s"', 'in {category/tag name}', 'jetpack' ),
|
|
$category->name
|
|
);
|
|
/**
|
|
* Filter the "In Category" line displayed in the post context below each Related Post.
|
|
*
|
|
* @module related-posts
|
|
*
|
|
* @since 3.2.0
|
|
*
|
|
* @param string $post_cat_context "In Category" line displayed in the post context below each Related Post.
|
|
* @param array $category Array containing information about the category.
|
|
*/
|
|
return apply_filters( 'jetpack_relatedposts_post_category_context', $post_cat_context, $category );
|
|
}
|
|
}
|
|
}
|
|
|
|
$tags = get_the_terms( $post_id, 'post_tag' );
|
|
if ( is_array( $tags ) ) {
|
|
foreach ( $tags as $tag ) {
|
|
if ( '' != trim( $tag->name ) ) {
|
|
$post_tag_context = sprintf(
|
|
_x( 'In "%s"', 'in {category/tag name}', 'jetpack' ),
|
|
$tag->name
|
|
);
|
|
/**
|
|
* Filter the "In Tag" line displayed in the post context below each Related Post.
|
|
*
|
|
* @module related-posts
|
|
*
|
|
* @since 3.2.0
|
|
*
|
|
* @param string $post_tag_context "In Tag" line displayed in the post context below each Related Post.
|
|
* @param array $tag Array containing information about the tag.
|
|
*/
|
|
return apply_filters( 'jetpack_relatedposts_post_tag_context', $post_tag_context, $tag );
|
|
}
|
|
}
|
|
}
|
|
|
|
$comment_count = get_comments_number( $post_id );
|
|
if ( $comment_count > 0 ) {
|
|
return sprintf(
|
|
_n( 'With 1 comment', 'With %s comments', $comment_count, 'jetpack' ),
|
|
number_format_i18n( $comment_count )
|
|
);
|
|
}
|
|
|
|
return __( 'Similar post', 'jetpack' );
|
|
}
|
|
|
|
/**
|
|
* Logs clicks for clickthrough analysis and related result tuning.
|
|
*
|
|
* @return null
|
|
*/
|
|
protected function _log_click( $post_id, $to_post_id, $link_position ) {
|
|
|
|
}
|
|
|
|
/**
|
|
* Determines if the current post is able to use related posts.
|
|
*
|
|
* @uses self::get_options, is_admin, is_single, apply_filters
|
|
* @return bool
|
|
*/
|
|
protected function _enabled_for_request() {
|
|
$enabled = is_single()
|
|
&& ! is_attachment()
|
|
&& ! is_admin()
|
|
&& ( ! $this->_allow_feature_toggle() || $this->get_option( 'enabled' ) );
|
|
|
|
/**
|
|
* Filter the Enabled value to allow related posts to be shown on pages as well.
|
|
*
|
|
* @module related-posts
|
|
*
|
|
* @since 3.3.0
|
|
*
|
|
* @param bool $enabled Should Related Posts be enabled on the current page.
|
|
*/
|
|
return apply_filters( 'jetpack_relatedposts_filter_enabled_for_request', $enabled );
|
|
}
|
|
|
|
/**
|
|
* Adds filters and enqueues assets.
|
|
*
|
|
* @uses self::_enqueue_assets, self::_setup_shortcode, add_filter
|
|
* @return null
|
|
*/
|
|
protected function _action_frontend_init_page() {
|
|
|
|
$enqueue_script = ! ( class_exists( 'Jetpack_AMP_Support' ) && Jetpack_AMP_Support::is_amp_request() );
|
|
$this->_enqueue_assets( $enqueue_script, true );
|
|
$this->_setup_shortcode();
|
|
|
|
add_filter( 'the_content', array( $this, 'filter_add_target_to_dom' ), 40 );
|
|
}
|
|
|
|
/**
|
|
* Enqueues assets needed to do async loading of related posts.
|
|
*
|
|
* @uses wp_enqueue_script, wp_enqueue_style, plugins_url
|
|
* @return null
|
|
*/
|
|
protected function _enqueue_assets( $script, $style ) {
|
|
$dependencies = is_customize_preview() ? array( 'customize-base' ) : array( 'jquery' );
|
|
if ( $script ) {
|
|
wp_enqueue_script(
|
|
'jetpack_related-posts',
|
|
Assets::get_file_url_for_environment(
|
|
'_inc/build/related-posts/related-posts.min.js',
|
|
'modules/related-posts/related-posts.js'
|
|
),
|
|
$dependencies,
|
|
self::VERSION
|
|
);
|
|
$related_posts_js_options = array(
|
|
/**
|
|
* Filter each Related Post Heading structure.
|
|
*
|
|
* @since 4.0.0
|
|
*
|
|
* @param string $str Related Post Heading structure. Default to h4.
|
|
*/
|
|
'post_heading' => apply_filters( 'jetpack_relatedposts_filter_post_heading', esc_attr( 'h4' ) ),
|
|
);
|
|
wp_localize_script( 'jetpack_related-posts', 'related_posts_js_options', $related_posts_js_options );
|
|
}
|
|
if ( $style ){
|
|
wp_enqueue_style( 'jetpack_related-posts', plugins_url( 'related-posts.css', __FILE__ ), array(), self::VERSION );
|
|
wp_style_add_data( 'jetpack_related-posts', 'rtl', 'replace' );
|
|
add_action( 'amp_post_template_css', array( $this, 'render_amp_reader_mode_css' ) );
|
|
}
|
|
}
|
|
|
|
public function render_amp_reader_mode_css() {
|
|
echo file_get_contents( plugin_dir_path( __FILE__ ) . 'related-posts.css' );
|
|
}
|
|
|
|
/**
|
|
* Sets up the shortcode processing.
|
|
*
|
|
* @uses add_filter, add_shortcode
|
|
* @return null
|
|
*/
|
|
protected function _setup_shortcode() {
|
|
add_filter( 'the_content', array( $this, 'test_for_shortcode' ), 0 );
|
|
|
|
add_shortcode( self::SHORTCODE, array( $this, 'get_client_rendered_html' ) );
|
|
}
|
|
|
|
protected function _allow_feature_toggle() {
|
|
if ( null === $this->_allow_feature_toggle ) {
|
|
/**
|
|
* Filter the display of the Related Posts toggle in Settings > Reading.
|
|
*
|
|
* @module related-posts
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @param bool false Display a feature toggle. Default to false.
|
|
*/
|
|
$this->_allow_feature_toggle = apply_filters( 'jetpack_relatedposts_filter_allow_feature_toggle', false );
|
|
}
|
|
return $this->_allow_feature_toggle;
|
|
}
|
|
|
|
/**
|
|
* ===================================================
|
|
* FUNCTIONS EXPOSING RELATED POSTS IN THE WP REST API
|
|
* ===================================================
|
|
*/
|
|
|
|
/**
|
|
* Add Related Posts to the REST API Post response.
|
|
*
|
|
* @since 4.4.0
|
|
*
|
|
* @action rest_api_init
|
|
* @uses register_rest_field, self::rest_get_related_posts
|
|
* @return null
|
|
*/
|
|
public function rest_register_related_posts() {
|
|
register_rest_field( 'post',
|
|
'jetpack-related-posts',
|
|
array(
|
|
'get_callback' => array( $this, 'rest_get_related_posts' ),
|
|
'update_callback' => null,
|
|
'schema' => null,
|
|
)
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Build an array of Related Posts.
|
|
* By default returns cached results that are stored for up to 12 hours.
|
|
*
|
|
* @since 4.4.0
|
|
*
|
|
* @param array $object Details of current post.
|
|
* @param string $field_name Name of field.
|
|
* @param WP_REST_Request $request Current request
|
|
*
|
|
* @uses self::get_for_post_id
|
|
*
|
|
* @return array
|
|
*/
|
|
public function rest_get_related_posts( $object, $field_name, $request ) {
|
|
return $this->get_for_post_id( $object['id'], array( 'size' => 6 ) );
|
|
}
|
|
}
|
|
|
|
class Jetpack_RelatedPosts_Raw extends Jetpack_RelatedPosts {
|
|
protected $_query_name;
|
|
|
|
/**
|
|
* Allows callers of this class to tag each query with a unique name for tracking purposes.
|
|
*
|
|
* @param string $name
|
|
* @return Jetpack_RelatedPosts_Raw
|
|
*/
|
|
public function set_query_name( $name ) {
|
|
$this->_query_name = (string) $name;
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* The raw related posts class can be used by other plugins or themes
|
|
* to get related content. This class wraps the existing RelatedPosts
|
|
* logic thus we never want to add anything to the DOM or do anything
|
|
* for event hooks. We will also not present any settings for this
|
|
* class and keep it enabled as calls to this class is done
|
|
* programmatically.
|
|
*/
|
|
public function action_admin_init() {}
|
|
public function action_frontend_init() {}
|
|
public function get_options() {
|
|
return array(
|
|
'enabled' => true,
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Workhorse method to return array of related posts ids matched by Elasticsearch.
|
|
*
|
|
* @param int $post_id
|
|
* @param int $size
|
|
* @param array $filters
|
|
* @uses wp_remote_post, is_wp_error, wp_remote_retrieve_body
|
|
* @return array
|
|
*/
|
|
protected function _get_related_posts( $post_id, $size, array $filters ) {
|
|
$hits = $this->_filter_non_public_posts(
|
|
$this->_get_related_post_ids(
|
|
$post_id,
|
|
$size,
|
|
$filters
|
|
)
|
|
);
|
|
|
|
/** This filter is already documented in modules/related-posts/related-posts.php */
|
|
$hits = apply_filters( 'jetpack_relatedposts_filter_hits', $hits, $post_id );
|
|
|
|
return $hits;
|
|
}
|
|
}
|