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772 lines
20 KiB
772 lines
20 KiB
5 years ago
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<?php
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/**
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* WPSEO plugin file.
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*
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* @package WPSEO\Frontend
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*/
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/**
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* This code adds the OpenGraph output.
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*/
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class WPSEO_OpenGraph {
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/**
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* The date helper.
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*
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* @var WPSEO_Date_Helper
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*/
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protected $date;
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/**
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* Class constructor.
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*/
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public function __construct() {
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$this->date = new WPSEO_Date_Helper();
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if ( isset( $GLOBALS['fb_ver'] ) || class_exists( 'Facebook_Loader', false ) ) {
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add_filter( 'fb_meta_tags', array( $this, 'facebook_filter' ), 10, 1 );
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}
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else {
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add_action( 'wpseo_opengraph', array( $this, 'locale' ), 1 );
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add_action( 'wpseo_opengraph', array( $this, 'type' ), 5 );
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add_action( 'wpseo_opengraph', array( $this, 'og_title' ), 10 );
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add_action( 'wpseo_opengraph', array( $this, 'app_id' ), 20 );
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add_action( 'wpseo_opengraph', array( $this, 'description' ), 11 );
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add_action( 'wpseo_opengraph', array( $this, 'url' ), 12 );
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add_action( 'wpseo_opengraph', array( $this, 'site_name' ), 13 );
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add_action( 'wpseo_opengraph', array( $this, 'website_facebook' ), 14 );
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if ( is_singular() && ! is_front_page() ) {
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add_action( 'wpseo_opengraph', array( $this, 'article_author_facebook' ), 15 );
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add_action( 'wpseo_opengraph', array( $this, 'tags' ), 16 );
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add_action( 'wpseo_opengraph', array( $this, 'category' ), 17 );
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add_action( 'wpseo_opengraph', array( $this, 'publish_date' ), 19 );
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}
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add_action( 'wpseo_opengraph', array( $this, 'image' ), 30 );
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}
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add_filter( 'jetpack_enable_open_graph', '__return_false' );
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add_action( 'wpseo_head', array( $this, 'opengraph' ), 30 );
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}
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/**
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* Main OpenGraph output.
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*/
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public function opengraph() {
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wp_reset_query();
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/**
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* Action: 'wpseo_opengraph' - Hook to add all Facebook OpenGraph output to so they're close together.
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*/
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do_action( 'wpseo_opengraph' );
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}
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/**
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* Internal function to output FB tags. This also adds an output filter to each bit of output based on the property.
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*
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* @param string $property Property attribute value.
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* @param string $content Content attribute value.
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*
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* @return boolean
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*/
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public function og_tag( $property, $content ) {
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$og_property = str_replace( ':', '_', $property );
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/**
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* Filter: 'wpseo_og_' . $og_property - Allow developers to change the content of specific OG meta tags.
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*
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* @api string $content The content of the property.
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*/
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$content = apply_filters( 'wpseo_og_' . $og_property, $content );
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if ( empty( $content ) ) {
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return false;
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}
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echo '<meta property="', esc_attr( $property ), '" content="', esc_attr( $content ), '" />', "\n";
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return true;
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}
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/**
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* Filter the Facebook plugins metadata.
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*
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* @param array $meta_tags The array to fix.
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*
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* @return array $meta_tags
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*/
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public function facebook_filter( $meta_tags ) {
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$meta_tags['http://ogp.me/ns#type'] = $this->type( false );
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$meta_tags['http://ogp.me/ns#title'] = $this->og_title( false );
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// Filter the locale too because the Facebook plugin locale code is not as good as ours.
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$meta_tags['http://ogp.me/ns#locale'] = $this->locale( false );
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$ogdesc = $this->description( false );
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if ( ! empty( $ogdesc ) ) {
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$meta_tags['http://ogp.me/ns#description'] = $ogdesc;
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}
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return $meta_tags;
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}
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/**
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* Outputs the authors FB page.
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*
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* @link https://developers.facebook.com/blog/post/2013/06/19/platform-updates--new-open-graph-tags-for-media-publishers-and-more/
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* @link https://developers.facebook.com/docs/reference/opengraph/object-type/article/
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*
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* @return boolean
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*/
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public function article_author_facebook() {
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if ( ! is_singular() ) {
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return false;
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}
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/**
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* Filter: 'wpseo_opengraph_author_facebook' - Allow developers to filter the Yoast SEO post authors facebook profile URL.
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*
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* @api bool|string $unsigned The Facebook author URL, return false to disable.
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*/
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$facebook = apply_filters( 'wpseo_opengraph_author_facebook', get_the_author_meta( 'facebook', $GLOBALS['post']->post_author ) );
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if ( $facebook && ( is_string( $facebook ) && $facebook !== '' ) ) {
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$this->og_tag( 'article:author', $facebook );
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return true;
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}
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return false;
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}
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/**
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* Outputs the websites FB page.
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*
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* @link https://developers.facebook.com/blog/post/2013/06/19/platform-updates--new-open-graph-tags-for-media-publishers-and-more/
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* @link https://developers.facebook.com/docs/reference/opengraph/object-type/article/
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*
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* @return boolean
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*/
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public function website_facebook() {
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if ( 'article' === $this->type( false ) && WPSEO_Options::get( 'facebook_site', '' ) !== '' ) {
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$this->og_tag( 'article:publisher', WPSEO_Options::get( 'facebook_site' ) );
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return true;
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}
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return false;
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}
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/**
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* Outputs the SEO title as OpenGraph title.
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*
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* @link https://developers.facebook.com/docs/reference/opengraph/object-type/article/
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*
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* @param bool $echo Whether or not to echo the output.
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*
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* @return string|boolean
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*/
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public function og_title( $echo = true ) {
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$frontend = WPSEO_Frontend::get_instance();
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if ( WPSEO_Frontend_Page_Type::is_simple_page() ) {
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$post_id = WPSEO_Frontend_Page_Type::get_simple_page_id();
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$post = get_post( $post_id );
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$title = WPSEO_Meta::get_value( 'opengraph-title', $post_id );
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if ( $title === '' ) {
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$title = $frontend->title( '' );
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}
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else {
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// Replace Yoast SEO Variables.
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$title = wpseo_replace_vars( $title, $post );
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}
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}
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elseif ( is_front_page() ) {
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$title = ( WPSEO_Options::get( 'og_frontpage_title', '' ) !== '' ) ? WPSEO_Options::get( 'og_frontpage_title' ) : $frontend->title( '' );
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}
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elseif ( is_category() || is_tax() || is_tag() ) {
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$title = WPSEO_Taxonomy_Meta::get_meta_without_term( 'opengraph-title' );
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if ( $title === '' ) {
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$title = $frontend->title( '' );
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}
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else {
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// Replace Yoast SEO Variables.
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$title = wpseo_replace_vars( $title, $GLOBALS['wp_query']->get_queried_object() );
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}
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}
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else {
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$title = $frontend->title( '' );
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}
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/**
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* Filter: 'wpseo_opengraph_title' - Allow changing the title specifically for OpenGraph.
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*
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* @api string $unsigned The title string.
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*/
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$title = trim( apply_filters( 'wpseo_opengraph_title', $title ) );
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if ( is_string( $title ) && $title !== '' ) {
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if ( $echo !== false ) {
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$this->og_tag( 'og:title', $title );
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return true;
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}
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}
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if ( $echo === false ) {
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return $title;
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}
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return false;
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}
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/**
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* Outputs the canonical URL as OpenGraph URL, which consolidates likes and shares.
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*
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* @link https://developers.facebook.com/docs/reference/opengraph/object-type/article/
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*
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* @return boolean
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*/
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public function url() {
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$url = WPSEO_Frontend::get_instance()->canonical( false, false );
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$unpaged_url = WPSEO_Frontend::get_instance()->canonical( false, true );
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/*
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* If the unpaged URL is the same as the normal URL but just with pagination added, use that.
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* This makes sure we always use the unpaged URL when we can, but doesn't break for overridden canonicals.
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*/
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if ( ! empty( $unpaged_url ) && is_string( $unpaged_url ) && strpos( $url, $unpaged_url ) === 0 ) {
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$url = $unpaged_url;
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}
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/**
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* Filter: 'wpseo_opengraph_url' - Allow changing the OpenGraph URL.
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*
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* @api string $unsigned Canonical URL.
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*/
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$url = apply_filters( 'wpseo_opengraph_url', $url );
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if ( is_string( $url ) && $url !== '' ) {
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$this->og_tag( 'og:url', esc_url( $url ) );
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return true;
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}
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return false;
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}
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/**
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* Output the locale, doing some conversions to make sure the proper Facebook locale is outputted.
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*
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* Last update/compare with FB list done on 2015-03-16 by Rarst.
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*
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* @link http://www.facebook.com/translations/FacebookLocales.xml for the list of supported locales.
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* @link https://developers.facebook.com/docs/reference/opengraph/object-type/article/
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*
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* @param bool $echo Whether to echo or return the locale.
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*
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* @return string $locale
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*/
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public function locale( $echo = true ) {
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/**
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* Filter: 'wpseo_locale' - Allow changing the locale output.
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*
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* @api string $unsigned Locale string.
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*/
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$locale = apply_filters( 'wpseo_locale', get_locale() );
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// Catch some weird locales served out by WP that are not easily doubled up.
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$fix_locales = array(
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'ca' => 'ca_ES',
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'en' => 'en_US',
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'el' => 'el_GR',
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'et' => 'et_EE',
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'ja' => 'ja_JP',
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'sq' => 'sq_AL',
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'uk' => 'uk_UA',
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'vi' => 'vi_VN',
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'zh' => 'zh_CN',
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);
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if ( isset( $fix_locales[ $locale ] ) ) {
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$locale = $fix_locales[ $locale ];
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}
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// Convert locales like "es" to "es_ES", in case that works for the given locale (sometimes it does).
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if ( strlen( $locale ) === 2 ) {
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$locale = strtolower( $locale ) . '_' . strtoupper( $locale );
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}
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// These are the locales FB supports.
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$fb_valid_fb_locales = array(
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'af_ZA', // Afrikaans.
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'ak_GH', // Akan.
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'am_ET', // Amharic.
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'ar_AR', // Arabic.
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'as_IN', // Assamese.
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'ay_BO', // Aymara.
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'az_AZ', // Azerbaijani.
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'be_BY', // Belarusian.
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'bg_BG', // Bulgarian.
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'bp_IN', // Bhojpuri.
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'bn_IN', // Bengali.
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'br_FR', // Breton.
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'bs_BA', // Bosnian.
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'ca_ES', // Catalan.
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'cb_IQ', // Sorani Kurdish.
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'ck_US', // Cherokee.
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'co_FR', // Corsican.
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'cs_CZ', // Czech.
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'cx_PH', // Cebuano.
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'cy_GB', // Welsh.
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'da_DK', // Danish.
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'de_DE', // German.
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'el_GR', // Greek.
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'en_GB', // English (UK).
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'en_PI', // English (Pirate).
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'en_UD', // English (Upside Down).
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'en_US', // English (US).
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'em_ZM',
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'eo_EO', // Esperanto.
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'es_ES', // Spanish (Spain).
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'es_LA', // Spanish.
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'es_MX', // Spanish (Mexico).
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'et_EE', // Estonian.
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'eu_ES', // Basque.
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'fa_IR', // Persian.
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'fb_LT', // Leet Speak.
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'ff_NG', // Fulah.
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'fi_FI', // Finnish.
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'fo_FO', // Faroese.
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'fr_CA', // French (Canada).
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'fr_FR', // French (France).
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'fy_NL', // Frisian.
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'ga_IE', // Irish.
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'gl_ES', // Galician.
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'gn_PY', // Guarani.
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'gu_IN', // Gujarati.
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'gx_GR', // Classical Greek.
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'ha_NG', // Hausa.
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'he_IL', // Hebrew.
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'hi_IN', // Hindi.
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'hr_HR', // Croatian.
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'hu_HU', // Hungarian.
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'ht_HT', // Haitian Creole.
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'hy_AM', // Armenian.
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'id_ID', // Indonesian.
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'ig_NG', // Igbo.
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'is_IS', // Icelandic.
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'it_IT', // Italian.
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'ik_US',
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'iu_CA',
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'ja_JP', // Japanese.
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'ja_KS', // Japanese (Kansai).
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'jv_ID', // Javanese.
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'ka_GE', // Georgian.
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'kk_KZ', // Kazakh.
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'km_KH', // Khmer.
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'kn_IN', // Kannada.
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'ko_KR', // Korean.
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'ks_IN', // Kashmiri.
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'ku_TR', // Kurdish (Kurmanji).
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'ky_KG', // Kyrgyz.
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'la_VA', // Latin.
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'lg_UG', // Ganda.
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'li_NL', // Limburgish.
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'ln_CD', // Lingala.
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'lo_LA', // Lao.
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'lt_LT', // Lithuanian.
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'lv_LV', // Latvian.
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'mg_MG', // Malagasy.
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'mi_NZ', // Maori.
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'mk_MK', // Macedonian.
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'ml_IN', // Malayalam.
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'mn_MN', // Mongolian.
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'mr_IN', // Marathi.
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'ms_MY', // Malay.
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'mt_MT', // Maltese.
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'my_MM', // Burmese.
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'nb_NO', // Norwegian (bokmal).
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'nd_ZW', // Ndebele.
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'ne_NP', // Nepali.
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'nl_BE', // Dutch (Belgie).
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'nl_NL', // Dutch.
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'nn_NO', // Norwegian (nynorsk).
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'nr_ZA', // Southern Ndebele.
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'ns_ZA', // Northern Sotho.
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'ny_MW', // Chewa.
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'om_ET', // Oromo.
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'or_IN', // Oriya.
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'pa_IN', // Punjabi.
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'pl_PL', // Polish.
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'ps_AF', // Pashto.
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'pt_BR', // Portuguese (Brazil).
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'pt_PT', // Portuguese (Portugal).
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'qc_GT', // Quiché.
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'qu_PE', // Quechua.
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'qr_GR',
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'qz_MM', // Burmese (Zawgyi).
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'rm_CH', // Romansh.
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'ro_RO', // Romanian.
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'ru_RU', // Russian.
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'rw_RW', // Kinyarwanda.
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||
|
'sa_IN', // Sanskrit.
|
||
|
'sc_IT', // Sardinian.
|
||
|
'se_NO', // Northern Sami.
|
||
|
'si_LK', // Sinhala.
|
||
|
'su_ID', // Sundanese.
|
||
|
'sk_SK', // Slovak.
|
||
|
'sl_SI', // Slovenian.
|
||
|
'sn_ZW', // Shona.
|
||
|
'so_SO', // Somali.
|
||
|
'sq_AL', // Albanian.
|
||
|
'sr_RS', // Serbian.
|
||
|
'ss_SZ', // Swazi.
|
||
|
'st_ZA', // Southern Sotho.
|
||
|
'sv_SE', // Swedish.
|
||
|
'sw_KE', // Swahili.
|
||
|
'sy_SY', // Syriac.
|
||
|
'sz_PL', // Silesian.
|
||
|
'ta_IN', // Tamil.
|
||
|
'te_IN', // Telugu.
|
||
|
'tg_TJ', // Tajik.
|
||
|
'th_TH', // Thai.
|
||
|
'tk_TM', // Turkmen.
|
||
|
'tl_PH', // Filipino.
|
||
|
'tl_ST', // Klingon.
|
||
|
'tn_BW', // Tswana.
|
||
|
'tr_TR', // Turkish.
|
||
|
'ts_ZA', // Tsonga.
|
||
|
'tt_RU', // Tatar.
|
||
|
'tz_MA', // Tamazight.
|
||
|
'uk_UA', // Ukrainian.
|
||
|
'ur_PK', // Urdu.
|
||
|
'uz_UZ', // Uzbek.
|
||
|
've_ZA', // Venda.
|
||
|
'vi_VN', // Vietnamese.
|
||
|
'wo_SN', // Wolof.
|
||
|
'xh_ZA', // Xhosa.
|
||
|
'yi_DE', // Yiddish.
|
||
|
'yo_NG', // Yoruba.
|
||
|
'zh_CN', // Simplified Chinese (China).
|
||
|
'zh_HK', // Traditional Chinese (Hong Kong).
|
||
|
'zh_TW', // Traditional Chinese (Taiwan).
|
||
|
'zu_ZA', // Zulu.
|
||
|
'zz_TR', // Zazaki.
|
||
|
);
|
||
|
|
||
|
// Check to see if the locale is a valid FB one, if not, use en_US as a fallback.
|
||
|
if ( ! in_array( $locale, $fb_valid_fb_locales, true ) ) {
|
||
|
$locale = strtolower( substr( $locale, 0, 2 ) ) . '_' . strtoupper( substr( $locale, 0, 2 ) );
|
||
|
if ( ! in_array( $locale, $fb_valid_fb_locales, true ) ) {
|
||
|
$locale = 'en_US';
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if ( $echo !== false ) {
|
||
|
$this->og_tag( 'og:locale', $locale );
|
||
|
}
|
||
|
|
||
|
return $locale;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Output the OpenGraph type.
|
||
|
*
|
||
|
* @param boolean $echo Whether to echo or return the type.
|
||
|
*
|
||
|
* @link https://developers.facebook.com/docs/reference/opengraph/object-type/object/
|
||
|
*
|
||
|
* @return string $type
|
||
|
*/
|
||
|
public function type( $echo = true ) {
|
||
|
|
||
|
if ( is_front_page() || is_home() ) {
|
||
|
$type = 'website';
|
||
|
}
|
||
|
elseif ( is_singular() ) {
|
||
|
|
||
|
// This'll usually only be changed by plugins right now.
|
||
|
$type = WPSEO_Meta::get_value( 'og_type' );
|
||
|
|
||
|
if ( $type === '' ) {
|
||
|
$type = 'article';
|
||
|
}
|
||
|
}
|
||
|
else {
|
||
|
// We use "object" for archives etc. as article doesn't apply there.
|
||
|
$type = 'object';
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Filter: 'wpseo_opengraph_type' - Allow changing the OpenGraph type of the page.
|
||
|
*
|
||
|
* @api string $type The OpenGraph type string.
|
||
|
*/
|
||
|
$type = apply_filters( 'wpseo_opengraph_type', $type );
|
||
|
|
||
|
if ( is_string( $type ) && $type !== '' ) {
|
||
|
if ( $echo !== false ) {
|
||
|
$this->og_tag( 'og:type', $type );
|
||
|
}
|
||
|
else {
|
||
|
return $type;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return '';
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Create new WPSEO_OpenGraph_Image class and get the images to set the og:image.
|
||
|
*
|
||
|
* @param string|bool $image Optional. Image URL.
|
||
|
*
|
||
|
* @return void
|
||
|
*/
|
||
|
public function image( $image = false ) {
|
||
|
$opengraph_image = new WPSEO_OpenGraph_Image( $image, $this );
|
||
|
$opengraph_image->show();
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Output the OpenGraph description, specific OG description first, if not, grab the meta description.
|
||
|
*
|
||
|
* @param bool $echo Whether to echo or return the description.
|
||
|
*
|
||
|
* @return string $ogdesc
|
||
|
*/
|
||
|
public function description( $echo = true ) {
|
||
|
$ogdesc = '';
|
||
|
$frontend = WPSEO_Frontend::get_instance();
|
||
|
|
||
|
if ( is_front_page() ) {
|
||
|
if ( WPSEO_Options::get( 'og_frontpage_desc', '' ) !== '' ) {
|
||
|
$ogdesc = wpseo_replace_vars( WPSEO_Options::get( 'og_frontpage_desc' ), null );
|
||
|
}
|
||
|
else {
|
||
|
$ogdesc = $frontend->metadesc( false );
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if ( WPSEO_Frontend_Page_Type::is_simple_page() ) {
|
||
|
$post_id = WPSEO_Frontend_Page_Type::get_simple_page_id();
|
||
|
$post = get_post( $post_id );
|
||
|
$ogdesc = WPSEO_Meta::get_value( 'opengraph-description', $post_id );
|
||
|
|
||
|
// Replace Yoast SEO Variables.
|
||
|
$ogdesc = wpseo_replace_vars( $ogdesc, $post );
|
||
|
|
||
|
// Use metadesc if $ogdesc is empty.
|
||
|
if ( $ogdesc === '' ) {
|
||
|
$ogdesc = $frontend->metadesc( false );
|
||
|
}
|
||
|
|
||
|
// Tag og:description is still blank so grab it from get_the_excerpt().
|
||
|
if ( ! is_string( $ogdesc ) || ( is_string( $ogdesc ) && $ogdesc === '' ) ) {
|
||
|
$ogdesc = str_replace( '[…]', '…', wp_strip_all_tags( get_the_excerpt() ) );
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if ( is_author() ) {
|
||
|
$ogdesc = $frontend->metadesc( false );
|
||
|
}
|
||
|
|
||
|
if ( is_category() || is_tag() || is_tax() ) {
|
||
|
$ogdesc = WPSEO_Taxonomy_Meta::get_meta_without_term( 'opengraph-description' );
|
||
|
if ( $ogdesc === '' ) {
|
||
|
$ogdesc = $frontend->metadesc( false );
|
||
|
}
|
||
|
|
||
|
if ( $ogdesc === '' ) {
|
||
|
$ogdesc = wp_strip_all_tags( term_description() );
|
||
|
}
|
||
|
|
||
|
if ( $ogdesc === '' ) {
|
||
|
$ogdesc = WPSEO_Taxonomy_Meta::get_meta_without_term( 'desc' );
|
||
|
}
|
||
|
$ogdesc = wpseo_replace_vars( $ogdesc, get_queried_object() );
|
||
|
}
|
||
|
|
||
|
// Strip shortcodes if any.
|
||
|
$ogdesc = strip_shortcodes( $ogdesc );
|
||
|
|
||
|
/**
|
||
|
* Filter: 'wpseo_opengraph_desc' - Allow changing the OpenGraph description.
|
||
|
*
|
||
|
* @api string $ogdesc The description string.
|
||
|
*/
|
||
|
$ogdesc = trim( apply_filters( 'wpseo_opengraph_desc', $ogdesc ) );
|
||
|
|
||
|
if ( is_string( $ogdesc ) && $ogdesc !== '' ) {
|
||
|
if ( $echo !== false ) {
|
||
|
$this->og_tag( 'og:description', $ogdesc );
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return $ogdesc;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Output the site name straight from the blog info.
|
||
|
*/
|
||
|
public function site_name() {
|
||
|
/**
|
||
|
* Filter: 'wpseo_opengraph_site_name' - Allow changing the OpenGraph site name.
|
||
|
*
|
||
|
* @api string $unsigned Blog name string.
|
||
|
*/
|
||
|
$name = apply_filters( 'wpseo_opengraph_site_name', get_bloginfo( 'name' ) );
|
||
|
if ( is_string( $name ) && $name !== '' ) {
|
||
|
$this->og_tag( 'og:site_name', $name );
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Output the article tags as article:tag tags.
|
||
|
*
|
||
|
* @link https://developers.facebook.com/docs/reference/opengraph/object-type/article/
|
||
|
*
|
||
|
* @return boolean
|
||
|
*/
|
||
|
public function tags() {
|
||
|
if ( ! is_singular() ) {
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
$tags = get_the_tags();
|
||
|
if ( ! is_wp_error( $tags ) && ( is_array( $tags ) && $tags !== array() ) ) {
|
||
|
|
||
|
foreach ( $tags as $tag ) {
|
||
|
$this->og_tag( 'article:tag', $tag->name );
|
||
|
}
|
||
|
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Output the article category as an article:section tag.
|
||
|
*
|
||
|
* @link https://developers.facebook.com/docs/reference/opengraph/object-type/article/
|
||
|
*
|
||
|
* @return boolean;
|
||
|
*/
|
||
|
public function category() {
|
||
|
|
||
|
if ( ! is_singular() ) {
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
$post = get_post();
|
||
|
if ( ! $post ) {
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
$primary_term = new WPSEO_Primary_Term( 'category', $post->ID );
|
||
|
$primary_category = $primary_term->get_primary_term();
|
||
|
|
||
|
if ( $primary_category ) {
|
||
|
// We can only show one section here, so we take the first one.
|
||
|
$this->og_tag( 'article:section', get_cat_name( $primary_category ) );
|
||
|
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
$terms = get_the_category();
|
||
|
|
||
|
if ( ! is_wp_error( $terms ) && is_array( $terms ) && ! empty( $terms ) ) {
|
||
|
// We can only show one section here, so we take the first one.
|
||
|
$term = reset( $terms );
|
||
|
$this->og_tag( 'article:section', $term->name );
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Output the article publish and last modification date.
|
||
|
*
|
||
|
* @link https://developers.facebook.com/docs/reference/opengraph/object-type/article/
|
||
|
*
|
||
|
* @return boolean;
|
||
|
*/
|
||
|
public function publish_date() {
|
||
|
|
||
|
if ( ! is_singular( 'post' ) ) {
|
||
|
/**
|
||
|
* Filter: 'wpseo_opengraph_show_publish_date' - Allow showing publication date for other post types.
|
||
|
*
|
||
|
* @api bool $unsigned Whether or not to show publish date.
|
||
|
*
|
||
|
* @param string $post_type The current URL's post type.
|
||
|
*/
|
||
|
if ( false === apply_filters( 'wpseo_opengraph_show_publish_date', false, get_post_type() ) ) {
|
||
|
return false;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
$post = get_post();
|
||
|
|
||
|
$pub = $this->date->format( $post->post_date_gmt );
|
||
|
$this->og_tag( 'article:published_time', $pub );
|
||
|
|
||
|
$mod = $this->date->format( $post->post_modified_gmt );
|
||
|
if ( $mod !== $pub ) {
|
||
|
$this->og_tag( 'article:modified_time', $mod );
|
||
|
$this->og_tag( 'og:updated_time', $mod );
|
||
|
}
|
||
|
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Outputs the Facebook app_id.
|
||
|
*
|
||
|
* @link https://developers.facebook.com/docs/reference/opengraph/object-type/article/
|
||
|
*
|
||
|
* @return void
|
||
|
*/
|
||
|
public function app_id() {
|
||
|
$app_id = WPSEO_Options::get( 'fbadminapp', '' );
|
||
|
if ( $app_id !== '' ) {
|
||
|
$this->og_tag( 'fb:app_id', $app_id );
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/* ********************* DEPRECATED METHODS ********************* */
|
||
|
|
||
|
/**
|
||
|
* Outputs the site owner.
|
||
|
*
|
||
|
* @link https://developers.facebook.com/docs/reference/opengraph/object-type/article/
|
||
|
*
|
||
|
* @return void
|
||
|
*
|
||
|
* @deprecated 7.1
|
||
|
* @codeCoverageIgnore
|
||
|
*/
|
||
|
public function site_owner() {
|
||
|
// As this is a frontend method, we want to make sure it is not displayed for non-logged in users.
|
||
|
if ( function_exists( 'wp_get_current_user' ) && current_user_can( 'manage_options' ) ) {
|
||
|
_deprecated_function( 'WPSEO_OpenGraph::site_owner', '7.1', null );
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Fallback method for plugins using image_output.
|
||
|
*
|
||
|
* @param string|bool $image Image URL.
|
||
|
*
|
||
|
* @deprecated 7.4
|
||
|
* @codeCoverageIgnore
|
||
|
*/
|
||
|
public function image_output( $image = false ) {
|
||
|
_deprecated_function( 'WPSEO_OpenGraph::image_output', '7.4', 'WPSEO_OpenGraph::image' );
|
||
|
|
||
|
$this->image( $image );
|
||
|
}
|
||
|
} /* End of class */
|