mirror of
https://git.sindominio.net/estibadores/wordpress.git
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456 lines
16 KiB
PHP
456 lines
16 KiB
PHP
<?php
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/**
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* Open Graph Tags
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*
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* Add Open Graph tags so that Facebook (and any other service that supports them)
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* can crawl the site better and we provide a better sharing experience.
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*
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* @link https://ogp.me/
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* @link https://developers.facebook.com/docs/opengraph/
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*
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* @package Jetpack
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*/
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add_action( 'wp_head', 'jetpack_og_tags' );
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add_action( 'amp_story_head', 'jetpack_og_tags' );
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/**
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* Outputs Open Graph tags generated by Jetpack.
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*/
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function jetpack_og_tags() {
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/**
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* Allow Jetpack to output Open Graph Meta Tags.
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*
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* @module sharedaddy, publicize
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*
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* @since 2.0.0
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* @deprecated 2.0.3 Duplicative filter. Use `jetpack_enable_open_graph`.
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*
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* @param bool true Should Jetpack's Open Graph Meta Tags be enabled. Default to true.
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*/
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if ( false === apply_filters( 'jetpack_enable_opengraph', true ) ) {
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_deprecated_function( 'jetpack_enable_opengraph', '2.0.3', 'jetpack_enable_open_graph' );
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return;
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}
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$is_amp_response = ( class_exists( 'Jetpack_AMP_Support' ) && Jetpack_AMP_Support::is_amp_request() );
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// Disable the widont filter on WP.com to avoid stray  s.
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$disable_widont = remove_filter( 'the_title', 'widont' );
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$og_output = "\n";
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if ( ! $is_amp_response ) { // Because AMP optimizes the order or the nodes in the head.
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$og_output .= "<!-- Jetpack Open Graph Tags -->\n";
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}
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$tags = array();
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/**
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* Filter the minimum width of the images used in Jetpack Open Graph Meta Tags.
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*
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* @module sharedaddy, publicize
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*
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* @since 2.0.0
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*
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* @param int 200 Minimum image width used in Jetpack Open Graph Meta Tags.
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*/
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$image_width = absint( apply_filters( 'jetpack_open_graph_image_width', 200 ) );
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/**
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* Filter the minimum height of the images used in Jetpack Open Graph Meta Tags.
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*
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* @module sharedaddy, publicize
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*
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* @since 2.0.0
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*
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* @param int 200 Minimum image height used in Jetpack Open Graph Meta Tags.
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*/
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$image_height = absint( apply_filters( 'jetpack_open_graph_image_height', 200 ) );
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$description_length = 197;
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if ( is_home() || is_front_page() ) {
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$site_type = Jetpack_Options::get_option_and_ensure_autoload( 'open_graph_protocol_site_type', '' );
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$tags['og:type'] = ! empty( $site_type ) ? $site_type : 'website';
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$tags['og:title'] = get_bloginfo( 'name' );
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$tags['og:description'] = get_bloginfo( 'description' );
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$front_page_id = get_option( 'page_for_posts' );
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if ( 'page' === get_option( 'show_on_front' ) && $front_page_id && is_home() ) {
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$tags['og:url'] = get_permalink( $front_page_id );
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} else {
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$tags['og:url'] = home_url( '/' );
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}
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// Associate a blog's root path with one or more Facebook accounts.
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$facebook_admins = Jetpack_Options::get_option_and_ensure_autoload( 'facebook_admins', array() );
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if ( ! empty( $facebook_admins ) ) {
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$tags['fb:admins'] = $facebook_admins;
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}
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} elseif ( is_author() ) {
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$tags['og:type'] = 'profile';
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$author = get_queried_object();
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if ( is_a( $author, 'WP_User' ) ) {
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$tags['og:title'] = $author->display_name;
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if ( ! empty( $author->user_url ) ) {
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$tags['og:url'] = $author->user_url;
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} else {
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$tags['og:url'] = get_author_posts_url( $author->ID );
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}
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$tags['og:description'] = $author->description;
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$tags['profile:first_name'] = get_the_author_meta( 'first_name', $author->ID );
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$tags['profile:last_name'] = get_the_author_meta( 'last_name', $author->ID );
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}
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} elseif ( is_archive() ) {
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$tags['og:type'] = 'website';
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$tags['og:title'] = wp_get_document_title();
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$archive = get_queried_object();
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if ( ! empty( $archive ) ) {
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if ( is_category() || is_tag() || is_tax() ) {
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$tags['og:url'] = get_term_link( $archive->term_id, $archive->taxonomy );
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$tags['og:description'] = $archive->description;
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} elseif ( is_post_type_archive() ) {
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$tags['og:url'] = get_post_type_archive_link( $archive->name );
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$tags['og:description'] = $archive->description;
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}
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}
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} elseif ( is_singular() ) {
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global $post;
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$data = $post; // so that we don't accidentally explode the global.
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$tags['og:type'] = 'article';
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if ( empty( $data->post_title ) ) {
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$tags['og:title'] = ' ';
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} else {
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/** This filter is documented in core/src/wp-includes/post-template.php */
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$tags['og:title'] = wp_kses( apply_filters( 'the_title', $data->post_title, $data->ID ), array() );
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}
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$tags['og:url'] = get_permalink( $data->ID );
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if ( ! post_password_required() ) {
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if ( ! empty( $data->post_excerpt ) ) {
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$tags['og:description'] = preg_replace( '@https?://[\S]+@', '', strip_shortcodes( wp_kses( $data->post_excerpt, array() ) ) );
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} else {
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$exploded_content_on_more_tag = explode( '<!--more-->', $data->post_content );
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$tags['og:description'] = wp_trim_words( preg_replace( '@https?://[\S]+@', '', strip_shortcodes( wp_kses( $exploded_content_on_more_tag[0], array() ) ) ) );
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}
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}
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if ( empty( $tags['og:description'] ) ) {
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/**
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* Filter the fallback `og:description` used when no excerpt information is provided.
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*
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* @module sharedaddy, publicize
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*
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* @since 3.9.0
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*
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* @param string $var Fallback og:description. Default is translated `Visit the post for more'.
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* @param object $data Post object for the current post.
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*/
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$tags['og:description'] = apply_filters( 'jetpack_open_graph_fallback_description', __( 'Visit the post for more.', 'jetpack' ), $data );
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} else {
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// Intentionally not using a filter to prevent pollution. @see https://github.com/Automattic/jetpack/pull/2899#issuecomment-151957382 .
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$tags['og:description'] = wp_kses( trim( convert_chars( wptexturize( $tags['og:description'] ) ) ), array() );
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}
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$tags['article:published_time'] = gmdate( 'c', strtotime( $data->post_date_gmt ) );
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$tags['article:modified_time'] = gmdate( 'c', strtotime( $data->post_modified_gmt ) );
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if ( post_type_supports( get_post_type( $data ), 'author' ) && isset( $data->post_author ) ) {
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$publicize_facebook_user = get_post_meta( $data->ID, '_publicize_facebook_user', true );
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if ( ! empty( $publicize_facebook_user ) ) {
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$tags['article:author'] = esc_url( $publicize_facebook_user );
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}
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}
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} elseif ( is_search() ) {
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if ( '' !== get_query_var( 's', '' ) ) {
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$tags['og:title'] = wp_get_document_title();
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}
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}
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/**
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* Allow plugins to inject additional template-specific Open Graph tags.
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*
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* @module sharedaddy, publicize
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*
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* @since 3.0.0
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*
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* @param array $tags Array of Open Graph Meta tags.
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* @param array $args Array of image size parameters.
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*/
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$tags = apply_filters( 'jetpack_open_graph_base_tags', $tags, compact( 'image_width', 'image_height' ) );
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// Re-enable widont if we had disabled it.
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if ( $disable_widont ) {
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add_filter( 'the_title', 'widont' );
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}
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/**
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* Do not return any Open Graph Meta tags if we don't have any info about a post.
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*
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* @module sharedaddy, publicize
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*
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* @since 3.0.0
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*
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* @param bool true Do not return any Open Graph Meta tags if we don't have any info about a post.
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*/
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if ( empty( $tags ) && apply_filters( 'jetpack_open_graph_return_if_empty', true ) ) {
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return;
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}
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$tags['og:site_name'] = get_bloginfo( 'name' );
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// Get image info and build tags.
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if ( ! post_password_required() ) {
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$image_info = jetpack_og_get_image( $image_width, $image_height );
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$tags['og:image'] = $image_info['src'];
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if ( ! empty( $image_info['width'] ) ) {
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$tags['og:image:width'] = (int) $image_info['width'];
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}
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if ( ! empty( $image_info['height'] ) ) {
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$tags['og:image:height'] = (int) $image_info['height'];
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}
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if ( ! empty( $image_info['alt_text'] ) ) {
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$tags['og:image:alt'] = esc_attr( $image_info['alt_text'] );
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}
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}
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// Facebook whines if you give it an empty title.
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if ( empty( $tags['og:title'] ) ) {
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$tags['og:title'] = __( '(no title)', 'jetpack' );
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}
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// Shorten the description if it's too long.
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if ( isset( $tags['og:description'] ) ) {
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$tags['og:description'] = strlen( $tags['og:description'] ) > $description_length ? mb_substr( $tags['og:description'], 0, $description_length ) . '…' : $tags['og:description'];
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}
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// Try to add OG locale tag if the WP->FB data mapping exists.
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if ( defined( 'JETPACK__GLOTPRESS_LOCALES_PATH' ) && file_exists( JETPACK__GLOTPRESS_LOCALES_PATH ) ) {
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require_once JETPACK__GLOTPRESS_LOCALES_PATH;
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$_locale = get_locale();
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// We have to account for w.org vs WP.com locale divergence.
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if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
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$gp_locale = GP_Locales::by_field( 'slug', $_locale );
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} else {
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$gp_locale = GP_Locales::by_field( 'wp_locale', $_locale );
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}
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}
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if ( isset( $gp_locale->facebook_locale ) && ! empty( $gp_locale->facebook_locale ) ) {
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$tags['og:locale'] = $gp_locale->facebook_locale;
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}
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/**
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* Allow the addition of additional Open Graph Meta tags, or modify the existing tags.
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*
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* @module sharedaddy, publicize
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*
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* @since 2.0.0
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*
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* @param array $tags Array of Open Graph Meta tags.
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* @param array $args Array of image size parameters.
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*/
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$tags = apply_filters( 'jetpack_open_graph_tags', $tags, compact( 'image_width', 'image_height' ) );
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// secure_urls need to go right after each og:image to work properly so we will abstract them here.
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$tags['og:image:secure_url'] = ( empty( $tags['og:image:secure_url'] ) ) ? '' : $tags['og:image:secure_url'];
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$secure = $tags['og:image:secure_url'];
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unset( $tags['og:image:secure_url'] );
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$secure_image_num = 0;
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foreach ( (array) $tags as $tag_property => $tag_content ) {
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// to accommodate multiple images.
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$tag_content = (array) $tag_content;
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$tag_content = array_unique( $tag_content );
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foreach ( $tag_content as $tag_content_single ) {
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if ( empty( $tag_content_single ) ) {
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continue; // Don't ever output empty tags.
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}
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$og_tag = sprintf( '<meta property="%s" content="%s" />', esc_attr( $tag_property ), esc_attr( $tag_content_single ) );
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/**
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* Filter the HTML Output of each Open Graph Meta tag.
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*
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* @module sharedaddy, publicize
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*
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* @since 2.0.0
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*
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* @param string $og_tag HTML HTML Output of each Open Graph Meta tag.
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*/
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$og_output .= apply_filters( 'jetpack_open_graph_output', $og_tag );
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$og_output .= "\n";
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if ( 'og:image' === $tag_property ) {
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if ( is_array( $secure ) && ! empty( $secure[ $secure_image_num ] ) ) {
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$og_tag = sprintf( '<meta property="og:image:secure_url" content="%s" />', esc_url( $secure[ $secure_image_num ] ) );
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/** This filter is documented in functions.opengraph.php */
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$og_output .= apply_filters( 'jetpack_open_graph_output', $og_tag );
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$og_output .= "\n";
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} elseif ( ! is_array( $secure ) && ! empty( $secure ) ) {
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$og_tag = sprintf( '<meta property="og:image:secure_url" content="%s" />', esc_url( $secure ) );
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/** This filter is documented in functions.opengraph.php */
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$og_output .= apply_filters( 'jetpack_open_graph_output', $og_tag );
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$og_output .= "\n";
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}
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$secure_image_num++;
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}
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}
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}
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if ( ! $is_amp_response ) { // Because AMP optimizes the order or the nodes in the head.
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$og_output .= "\n<!-- End Jetpack Open Graph Tags -->";
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}
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$og_output .= "\n";
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// This is trusted output or added by a filter.
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echo $og_output; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
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}
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/**
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* Returns an image used in social shares.
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*
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* @since 2.0.0
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*
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* @param int $width Minimum width for the image. Default is 200 based on Facebook's requirement.
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* @param int $height Minimum height for the image. Default is 200 based on Facebook's requirement.
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* @param null $deprecated Deprecated.
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*
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* @return array The source ('src'), 'width', and 'height' of the image.
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*/
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function jetpack_og_get_image( $width = 200, $height = 200, $deprecated = null ) {
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if ( ! empty( $deprecated ) ) {
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_deprecated_argument( __FUNCTION__, '6.6.0' );
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}
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$image = array();
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if ( is_singular() && ! is_home() ) {
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// Grab obvious image if post is an attachment page for an image.
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if ( is_attachment( get_the_ID() ) && 'image' === substr( get_post_mime_type(), 0, 5 ) ) {
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$image['src'] = wp_get_attachment_url( get_the_ID() );
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}
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// Attempt to find something good for this post using our generalized PostImages code.
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if ( empty( $image ) && class_exists( 'Jetpack_PostImages' ) ) {
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$post_images = Jetpack_PostImages::get_images(
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get_the_ID(),
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array(
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'width' => $width,
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'height' => $height,
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)
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);
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if ( $post_images && ! is_wp_error( $post_images ) ) {
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foreach ( (array) $post_images as $post_image ) {
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$image['src'] = $post_image['src'];
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if ( isset( $post_image['src_width'], $post_image['src_height'] ) ) {
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$image['width'] = $post_image['src_width'];
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$image['height'] = $post_image['src_height'];
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}
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if ( ! empty( $post_image['alt_text'] ) ) {
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$image['alt_text'] = $post_image['alt_text'];
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}
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}
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}
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}
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} elseif ( is_author() ) {
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$author = get_queried_object();
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if ( is_a( $author, 'WP_User' ) ) {
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$image['src'] = get_avatar_url(
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$author->user_email,
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array(
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'size' => $width,
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)
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);
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}
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}
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// First fall back, blavatar.
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if ( empty( $image ) && function_exists( 'blavatar_domain' ) ) {
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$blavatar_domain = blavatar_domain( site_url() );
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if ( blavatar_exists( $blavatar_domain ) ) {
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$image['src'] = blavatar_url( $blavatar_domain, 'img', $width, false, true );
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$image['width'] = $width;
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$image['height'] = $height;
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}
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}
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// Second fall back, Site Logo.
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if ( empty( $image ) && ( function_exists( 'jetpack_has_site_logo' ) && jetpack_has_site_logo() ) ) {
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$image_id = jetpack_get_site_logo( 'id' );
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$logo = wp_get_attachment_image_src( $image_id, 'full' );
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if (
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isset( $logo[0], $logo[1], $logo[2] )
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&& ( _jetpack_og_get_image_validate_size( $logo[1], $logo[2], $width, $height ) )
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) {
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$image['src'] = $logo[0];
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$image['width'] = $logo[1];
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$image['height'] = $logo[2];
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}
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}
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// Third fall back, Core Site Icon, if valid in size.
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if ( empty( $image ) && has_site_icon() ) {
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$image_id = get_option( 'site_icon' );
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$icon = wp_get_attachment_image_src( $image_id, 'full' );
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if (
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isset( $icon[0], $icon[1], $icon[2] )
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&& ( _jetpack_og_get_image_validate_size( $icon[1], $icon[2], $width, $height ) )
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) {
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$image['src'] = $icon[0];
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$image['width'] = $icon[1];
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$image['height'] = $icon[2];
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}
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}
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// Final fall back, blank image.
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if ( empty( $image ) ) {
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/**
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* Filter the default Open Graph Image tag, used when no Image can be found in a post.
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*
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* @since 3.0.0
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*
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* @param string $str Default Image URL.
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*/
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$image['src'] = apply_filters( 'jetpack_open_graph_image_default', 'https://s0.wp.com/i/blank.jpg' );
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}
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return $image;
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}
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/**
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* Validate the width and height against required width and height
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*
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* @param int $width Width of the image.
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* @param int $height Height of the image.
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* @param int $req_width Required width to pass validation.
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* @param int $req_height Required height to pass validation.
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*
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* @return bool - True if the image passed the required size validation
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*/
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function _jetpack_og_get_image_validate_size( $width, $height, $req_width, $req_height ) {
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if ( ! $width || ! $height ) {
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return false;
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}
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$valid_width = ( $width >= $req_width );
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$valid_height = ( $height >= $req_height );
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$is_image_acceptable = $valid_width && $valid_height;
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return $is_image_acceptable;
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}
|
|
|
|
/**
|
|
* Gets a gravatar URL of the specified size.
|
|
*
|
|
* @param string $email E-mail address to get gravatar for.
|
|
* @param int $width Size of returned gravatar.
|
|
* @return array|bool|mixed|string
|
|
*/
|
|
function jetpack_og_get_image_gravatar( $email, $width ) {
|
|
return get_avatar_url(
|
|
$email,
|
|
array(
|
|
'size' => $width,
|
|
)
|
|
);
|
|
}
|