← All changes | enhanced-open-graph.php +212 -0 16.2-beta → 16.3 View file →

		@@ -1,0 +1,212 @@
	1	+<?php
	2	+/**
	3	+ * Enhanced Open Graph for Jetpack.
	4	+ *
	5	+ * @package automattic/jetpack
	6	+ */
	7	+
	8	+use Automattic\Jetpack\Post_Media\Images;
	9	+
	10	+if ( ! defined( 'ABSPATH' ) ) {
	11	+ exit( 0 );
	12	+}
	13	+
	14	+if ( ! class_exists( 'Jetpack_Media_Summary' ) ) {
	15	+ require_once JETPACK__PLUGIN_DIR . '_inc/lib/class.media-summary.php';
	16	+}
	17	+
	18	+/**
	19	+ * Better OG Image Tags for Image Post Formats
	20	+ *
	21	+ * @param array $tags Array of Open Graph tags.
	22	+ */
	23	+function enhanced_og_image( $tags ) {
	24	+ if ( ! is_singular() || post_password_required() ) {
	25	+ return $tags;
	26	+ }
	27	+
	28	+ global $post;
	29	+
	30	+ // Bail if we do not have info about the post.
	31	+ if ( ! $post instanceof WP_Post ) {
	32	+ return $tags;
	33	+ }
	34	+
	35	+ // A gated body's embedded media is withheld along with the body.
	36	+ if ( \Automattic\Jetpack\SEO\Content_Gate::is_gated( $post ) ) {
	37	+ return $tags;
	38	+ }
	39	+
	40	+ // Always favor featured images.
	41	+ if ( enhanced_og_has_featured_image( $post->ID ) ) {
	42	+ return $tags;
	43	+ }
	44	+
	45	+ $summary = Jetpack_Media_Summary::get(
	46	+ $post->ID,
	47	+ 0,
	48	+ array(
	49	+ 'include_excerpt' => false,
	50	+ 'include_count' => false,
	51	+ )
	52	+ );
	53	+
	54	+ if ( 'image' !== $summary['type'] ) {
	55	+ return $tags;
	56	+ }
	57	+
	58	+ $tags['og:image'] = $summary['image'];
	59	+ $tags['og:image:secure_url'] = $summary['secure']['image'];
	60	+
	61	+ return $tags;
	62	+}
	63	+add_filter( 'jetpack_open_graph_tags', 'enhanced_og_image' );
	64	+
	65	+/**
	66	+ * Better OG Image Tags for Gallery Post Formats
	67	+ *
	68	+ * @param array $tags Array of Open Graph tags.
	69	+ */
	70	+function enhanced_og_gallery( $tags ) {
	71	+ if ( ! is_singular() || post_password_required() ) {
	72	+ return $tags;
	73	+ }
	74	+
	75	+ global $post;
	76	+
	77	+ // Bail if we do not have info about the post.
	78	+ if ( ! $post instanceof WP_Post ) {
	79	+ return $tags;
	80	+ }
	81	+
	82	+ // A gated body's embedded media is withheld along with the body.
	83	+ if ( \Automattic\Jetpack\SEO\Content_Gate::is_gated( $post ) ) {
	84	+ return $tags;
	85	+ }
	86	+
	87	+ // Always favor featured images.
	88	+ if ( enhanced_og_has_featured_image( $post->ID ) ) {
	89	+ return $tags;
	90	+ }
	91	+
	92	+ $summary = Jetpack_Media_Summary::get(
	93	+ $post->ID,
	94	+ 0,
	95	+ array(
	96	+ 'include_excerpt' => false,
	97	+ 'include_count' => false,
	98	+ )
	99	+ );
	100	+
	101	+ if ( 'gallery' !== $summary['type'] ) {
	102	+ return $tags;
	103	+ }
	104	+
	105	+ if ( ! isset( $summary['images'] ) || ! is_array( $summary['images'] ) || empty( $summary['images'] ) ) {
	106	+ return $tags;
	107	+ }
	108	+
	109	+ $images = array();
	110	+ $secures = array();
	111	+
	112	+ foreach ( $summary['images'] as $i => $image ) {
	113	+ $images[] = $image['url'];
	114	+ $secures[] = $summary['secure']['images'][ $i ]['url'];
	115	+ }
	116	+
	117	+ $tags['og:image'] = $images;
	118	+ $tags['og:image:secure_url'] = $secures;
	119	+
	120	+ return $tags;
	121	+}
	122	+add_filter( 'jetpack_open_graph_tags', 'enhanced_og_gallery' );
	123	+
	124	+/**
	125	+ * Allows VideoPress, YouTube, and Vimeo videos to play inline on Facebook
	126	+ *
	127	+ * @param array $tags Array of Open Graph tags.
	128	+ */
	129	+function enhanced_og_video( $tags ) {
	130	+ if ( ! is_singular() || post_password_required() ) {
	131	+ return $tags;
	132	+ }
	133	+
	134	+ global $post;
	135	+
	136	+ // Bail if we do not have info about the post.
	137	+ if ( ! $post instanceof WP_Post ) {
	138	+ return $tags;
	139	+ }
	140	+
	141	+ // A gated body's embedded media is withheld along with the body.
	142	+ if ( \Automattic\Jetpack\SEO\Content_Gate::is_gated( $post ) ) {
	143	+ return $tags;
	144	+ }
	145	+
	146	+ // Always favor featured images.
	147	+ if ( enhanced_og_has_featured_image( $post->ID ) ) {
	148	+ return $tags;
	149	+ }
	150	+
	151	+ $summary = Jetpack_Media_Summary::get(
	152	+ $post->ID,
	153	+ 0,
	154	+ array(
	155	+ 'include_excerpt' => false,
	156	+ 'include_count' => false,
	157	+ )
	158	+ );
	159	+
	160	+ if ( 'video' !== $summary['type'] ) {
	161	+ if ( $summary['count']['video'] > 0 && $summary['count']['image'] < 1 ) {
	162	+ $tags['og:image'] = $summary['image'];
	163	+ $tags['og:image:secure_url'] = $summary['secure']['image'];
	164	+ }
	165	+ return $tags;
	166	+ }
	167	+
	168	+ $tags['og:image'] = $summary['image'];
	169	+ $tags['og:image:secure_url'] = $summary['secure']['image'];
	170	+
	171	+ // This should be html by default for youtube/vimeo, since we're linking to HTML pages.
	172	+ $tags['og:video:type'] = $summary['video_type'] ?? 'text/html';
	173	+
	174	+ $video_url = $summary['video'];
	175	+ $secure_video_url = $summary['secure']['video'];
	176	+
	177	+ if ( preg_match( '/((youtube|vimeo)\.com|youtu.be)/', $video_url ) ) {
	178	+ if ( strstr( $video_url, 'youtube' ) ) {
	179	+ $id = jetpack_get_youtube_id( $video_url );
	180	+ $video_url = 'http://www.youtube.com/embed/' . $id;
	181	+ $secure_video_url = 'https://www.youtube.com/embed/' . $id;
	182	+ } elseif ( strstr( $video_url, 'vimeo' ) ) {
	183	+ preg_match( '|vimeo\.com/(\d+)/?$|i', $video_url, $match );
	184	+ if ( isset( $match[1] ) ) {
	185	+ $id = (int) $match[1];
	186	+ $video_url = 'http://vimeo.com/moogaloop.swf?clip_id=' . $id;
	187	+ $secure_video_url = 'https://vimeo.com/moogaloop.swf?clip_id=' . $id;
	188	+ }
	189	+ }
	190	+ }
	191	+
	192	+ $tags['og:video'] = $video_url;
	193	+ $tags['og:video:secure_url'] = $secure_video_url;
	194	+
	195	+ if ( empty( $post->post_title ) ) {
	196	+ /* translators: %s is the name of the site */
	197	+ $tags['og:title'] = sprintf( __( 'Video on %s', 'jetpack' ), get_option( 'blogname' ) );
	198	+ }
	199	+
	200	+ return $tags;
	201	+}
	202	+add_filter( 'jetpack_open_graph_tags', 'enhanced_og_video' );
	203	+
	204	+/**
	205	+ * Check if a post has a suitable featured image.
	206	+ *
	207	+ * @param int $post_id The post ID to check.
	208	+ * @return bool True if the post has a suitable featured image, false otherwise.
	209	+ */
	210	+function enhanced_og_has_featured_image( $post_id ) {
	211	+ return ! empty( Images::from_thumbnail( $post_id ) );
	212	+}