jetpack / enhanced-open-graph.php

enhanced-open-graph.php in Jetpack – WP Security, Backup, Speed, & Growth 16.2, at enhanced-open-graph.php

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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	}
213