class.media-summary.php — Jetpack – WP Security, Backup, Speed, & Growth 2.9.6

jetpack / class.media-summary.php

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class.media-summary.php

263 lines

1	<?php
2	/**
3	* Class Jetpack_Media_Summary
4	*
5	* embed [video] > gallery > image > text
6	*/
7	class Jetpack_Media_Summary {
8
9	static function get( $post_id, $blog_id = 0, $args = array() ) {
10	$defaults = array(
11	'trigger_mshot' => false
12	);
13	$args = wp_parse_args( $args, $defaults );
14
15	$switched = false;
16	if ( !empty( $blog_id ) && $blog_id != get_current_blog_id() && function_exists( 'switch_to_blog' ) ) {
17	switch_to_blog( $blog_id );
18	$switched = true;
19	} else {
20	$blog_id = get_current_blog_id();
21	}
22
23	$post = get_post( $post_id );
24	$permalink = get_permalink( $post_id );
25
26	$return = array(
27	'type' => 'standard',
28	'permalink' => $permalink,
29	'image' => '',
30	'excerpt' => '',
31	'word_count' => 0,
32	'secure' => array(
33	'image' => '',
34	),
35	'count' => array(
36	'image' => 0,
37	'video' => 0,
38	'word' => 0,
39	'link' => 0,
40	),
41	);
42
43	$extract = Jetpack_Media_Meta_Extractor::extract( $blog_id, $post_id, Jetpack_Media_Meta_Extractor::ALL );
44
45	if ( empty( $extract['has'] ) )
46	return $return;
47
48	// Prioritize [some] video embeds
49	if ( !empty( $extract['has']['shortcode'] ) ) {
50	foreach ( $extract['shortcode'] as $type => $data ) {
51	switch ( $type ) {
52	case 'wpvideo':
53	if ( 0 == $return['count']['video'] ) {
54	$return['type'] = 'video';
55	$return['video'] = esc_url_raw( 'http://s0.videopress.com/player.swf?guid=' . $extract['shortcode']['wpvideo']['id'][0] . '&isDynamicSeeking=true' );
56	$return['image'] = self::get_video_poster( 'videopress', $extract['shortcode']['wpvideo']['id'][0] );
57	$return['secure']['video'] = preg_replace( '@http://[^\.]+.videopress.com/@', 'https://v0.wordpress.com/', $return['video'] );
58	$return['secure']['image'] = str_replace( 'http://videos.videopress.com', 'https://videos.files.wordpress.com', $return['image'] );
59	}
60	$return['count']['video']++;
61	break;
62	case 'youtube':
63	if ( 0 == $return['count']['video'] ) {
64	$return['type'] = 'video';
65	$return['video'] = esc_url_raw( 'http://www.youtube.com/watch?feature=player_embedded&v=' . $extract['shortcode']['youtube']['id'][0] );
66	$return['image'] = self::get_video_poster( 'youtube', $extract['shortcode']['youtube']['id'][0] );
67	$return['secure']['video'] = self::https( $return['video'] );
68	$return['secure']['image'] = self::https( $return['image'] );
69	}
70	$return['count']['video']++;
71	break;
72	case 'vimeo':
73	if ( 0 == $return['count']['video'] ) {
74	$return['type'] = 'video';
75	$return['video'] = esc_url_raw( 'http://vimeo.com/' . $extract['shortcode']['vimeo']['id'][0] );
76	$return['secure']['video'] = self::https( $return['video'] );
77
78	$poster_image = get_post_meta( $post_id, 'vimeo_poster_image', true );
79	if ( !empty( $poster_image ) ) {
80	$return['image'] = $poster_image;
81	$poster_url_parts = parse_url( $poster_image );
82	$return['secure']['image'] = 'https://secure-a.vimeocdn.com' . $poster_url_parts['path'];
83	}
84	}
85	$return['count']['video']++;
86	break;
87	}
88	}
89
90	}
91
92	if ( !empty( $extract['has']['embed'] ) ) {
93	foreach( $extract['embed']['url'] as $embed ) {
94	if ( preg_match( '/((youtube\|vimeo)\.com\|youtu.be)/', $embed ) ) {
95	if ( 0 == $return['count']['video'] ) {
96	$return['type'] = 'video';
97	$return['video'] = 'http://' . $embed;
98	$return['secure']['video'] = self::https( $return['video'] );
99	if ( strstr( $embed, 'youtube' ) ) {
100	$return['image'] = self::get_video_poster( 'youtube', get_youtube_id( $return['video'] ) );
101	$return['secure']['image'] = self::https( $return['image'] );
102	} else if ( strstr( $embed, 'vimeo' ) ) {
103	$poster_image = get_post_meta( $post_id, 'vimeo_poster_image', true );
104	if ( !empty( $poster_image ) ) {
105	$return['image'] = $poster_image;
106	$poster_url_parts = parse_url( $poster_image );
107	$return['secure']['image'] = 'https://secure-a.vimeocdn.com' . $poster_url_parts['path'];
108	}
109	}
110
111	}
112	$return['count']['video']++;
113	}
114	}
115	}
116
117	// Do we really want to make the video the primary focus of the post?
118	if ( 'video' == $return['type'] ) {
119	$content = wpautop( strip_tags( $post->post_content ) );
120	$paragraphs = explode( '</p>', $content );
121	$number_of_paragraphs = 0;
122
123	foreach ( $paragraphs as $i => $paragraph ) {
124	// Don't include blank lines as a paragraph
125	if ( '' == trim( $paragraph ) ) {
126	unset( $paragraphs[$i] );
127	continue;
128	}
129	$number_of_paragraphs++;
130	}
131
132	$number_of_paragraphs = $number_of_paragraphs - $return['count']['video']; // subtract amount for videos..
133
134	// More than 2 paragraph? The video is not the primary focus so we can do some more analysis
135	if ( $number_of_paragraphs > 2 )
136	$return['type'] = 'standard';
137	}
138
139	// If we don't have any prioritized embed...
140	if ( 'standard' == $return['type'] ) {
141	if ( !empty( $extract['has']['gallery'] ) ) {
142	//... Then we prioritize galleries first (multiple images returned)
143	$return['type'] = 'gallery';
144	$return['images'] = $extract['image'];
145	foreach ( $return['images'] as $image ) {
146	$return['secure']['images'][] = array( 'url' => self::ssl_img( $image['url'] ) );
147	$return['count']['image']++;
148	}
149	} else if ( !empty( $extract['has']['image'] ) ) {
150	// ... Or we try and select a single image that would make sense
151	$content = wpautop( strip_tags( $post->post_content ) );
152	$paragraphs = explode( '</p>', $content );
153	$number_of_paragraphs = 0;
154
155	foreach ( $paragraphs as $i => $paragraph ) {
156	// Don't include 'actual' captions as a paragraph
157	if ( false !== strpos( $paragraph, '[caption' ) ) {
158	unset( $paragraphs[$i] );
159	continue;
160	}
161	// Don't include blank lines as a paragraph
162	if ( '' == trim( $paragraph ) ) {
163	unset( $paragraphs[$i] );
164	continue;
165	}
166	$number_of_paragraphs++;
167	}
168
169	$return['image'] = $extract['image'][0]['url'];
170	$return['secure']['image'] = self::ssl_img( $return['image'] );
171	$return['count']['image']++;
172
173	if ( $number_of_paragraphs <= 2 ) {
174	// If we have lots of text, let's not treat it as an image post, but return its first image
175	$return['type'] = 'image';
176	}
177	}
178	}
179
180	if ( empty( $post->post_password ) ) {
181	$return['excerpt'] = self::get_excerpt( $post->post_content, $post->post_excerpt );
182	$return['count']['word'] = self::get_word_count( $post->post_content );
183	$return['count']['word_remaining'] = self::get_word_remaining_count( $post->post_content, self::get_excerpt( $post->post_content, $post->post_excerpt ) );
184	$return['count']['link'] = self::get_link_count( $post->post_content );
185	}
186
187	if ( $switched ) {
188	restore_current_blog();
189	}
190
191	return $return;
192	}
193
194	static function https( $str ) {
195	return str_replace( 'http://', 'https://', $str );
196	}
197
198	static function ssl_img( $url ) {
199	if ( strstr( $url, 'files.wordpress.com' ) ) {
200	return self::https( $url );
201	} else {
202	return self::https( jetpack_photon_url( $url ) );
203	}
204	}
205
206	static function get_video_poster( $type, $id ) {
207	if ( 'videopress' == $type ) {
208	if ( function_exists( 'video_get_highest_resolution_image_url' ) ) {
209	return video_get_highest_resolution_image_url( $id );
210	} else if ( class_exists( 'VideoPress_Video' ) ) {
211	$video = new VideoPress_Video( $id );
212	return $video->poster_frame_uri;
213	}
214	} else if ( 'youtube' == $type ) {
215	return 'http://img.youtube.com/vi/'.$id.'/0.jpg';
216	}
217	}
218
219	static function clean_text( $text ) {
220	return trim(
221	preg_replace(
222	'/[\s]+/',
223	' ',
224	preg_replace(
225	'@https?://[\S]+@',
226	'',
227	strip_shortcodes(
228	strip_tags(
229	$text
230	)
231	)
232	)
233	)
234	);
235	}
236
237	static function get_excerpt( $post_content, $post_excerpt ) {
238	if ( function_exists( 'wpcom_enhanced_excerpt_extract_excerpt' ) ) {
239	return self::clean_text( wpcom_enhanced_excerpt_extract_excerpt( array(
240	'text' => $post_content,
241	'excerpt_only' => true,
242	'show_read_more' => false,
243	'max_words' => 16,
244	'max_chars' => 100,
245	) ) );
246	} else {
247	$post_excerpt = apply_filters( 'get_the_excerpt', $post_excerpt );
248	return self::clean_text( $post_excerpt );
249	}
250	}
251
252	static function get_word_count( $post_content ) {
253	return str_word_count( self::clean_text( $post_content ) );
254	}
255
256	static function get_word_remaining_count( $post_content, $excerpt_content ) {
257	return str_word_count( self::clean_text( $post_content ) ) - str_word_count( self::clean_text( $excerpt_content ) );
258	}
259
260	static function get_link_count( $post_content ) {
261	return substr_count( $post_content, '<a' );
262	}
263	}