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class.media-summary.php
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class.media-summary.php
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<?php
/**
* Class Jetpack_Media_Summary
*
* embed [video] > gallery > image > text
*/
class Jetpack_Media_Summary {
static function get( $post_id, $blog_id = 0, $args = array() ) {
$defaults = array(
'max_words' => 16,
'max_chars' => 256,
);
$args = wp_parse_args( $args, $defaults );
$switched = false;
if ( !empty( $blog_id ) && $blog_id != get_current_blog_id() && function_exists( 'switch_to_blog' ) ) {
switch_to_blog( $blog_id );
$switched = true;
} else {
$blog_id = get_current_blog_id();
}
$post = get_post( $post_id );
$permalink = get_permalink( $post_id );
$return = array(
'type' => 'standard',
'permalink' => $permalink,
'image' => '',
'excerpt' => '',
'word_count' => 0,
'secure' => array(
'image' => '',
),
'count' => array(
'image' => 0,
'video' => 0,
'word' => 0,
'link' => 0,
),
);
if ( empty( $post->post_password ) ) {
$return['excerpt'] = self::get_excerpt( $post->post_content, $post->post_excerpt, $args['max_words'], $args['max_chars'] );
$return['count']['word'] = self::get_word_count( $post->post_content );
$return['count']['word_remaining'] = self::get_word_remaining_count( $post->post_content, $return['excerpt'] );
$return['count']['link'] = self::get_link_count( $post->post_content );
}
$extract = Jetpack_Media_Meta_Extractor::extract( $blog_id, $post_id, Jetpack_Media_Meta_Extractor::ALL );
if ( empty( $extract['has'] ) )
return $return;
// Prioritize [some] video embeds
if ( !empty( $extract['has']['shortcode'] ) ) {
foreach ( $extract['shortcode'] as $type => $data ) {
switch ( $type ) {
case 'wpvideo':
if ( 0 == $return['count']['video'] ) {
$return['type'] = 'video';
$return['video'] = esc_url_raw( 'http://s0.videopress.com/player.swf?guid=' . $extract['shortcode']['wpvideo']['id'][0] . '&isDynamicSeeking=true' );
$return['image'] = self::get_video_poster( 'videopress', $extract['shortcode']['wpvideo']['id'][0] );
$return['secure']['video'] = preg_replace( '@http://[^\.]+.videopress.com/@', 'https://v0.wordpress.com/', $return['video'] );
$return['secure']['image'] = str_replace( 'http://videos.videopress.com', 'https://videos.files.wordpress.com', $return['image'] );
}
$return['count']['video']++;
break;
case 'youtube':
if ( 0 == $return['count']['video'] ) {
$return['type'] = 'video';
$return['video'] = esc_url_raw( 'http://www.youtube.com/watch?feature=player_embedded&v=' . $extract['shortcode']['youtube']['id'][0] );
$return['image'] = self::get_video_poster( 'youtube', $extract['shortcode']['youtube']['id'][0] );
$return['secure']['video'] = self::https( $return['video'] );
$return['secure']['image'] = self::https( $return['image'] );
}
$return['count']['video']++;
break;
case 'vimeo':
if ( 0 == $return['count']['video'] ) {
$return['type'] = 'video';
$return['video'] = esc_url_raw( 'http://vimeo.com/' . $extract['shortcode']['vimeo']['id'][0] );
$return['secure']['video'] = self::https( $return['video'] );
$poster_image = get_post_meta( $post_id, 'vimeo_poster_image', true );
if ( !empty( $poster_image ) ) {
$return['image'] = $poster_image;
$poster_url_parts = parse_url( $poster_image );
$return['secure']['image'] = 'https://secure-a.vimeocdn.com' . $poster_url_parts['path'];
}
}
$return['count']['video']++;
break;
}
}
}
if ( !empty( $extract['has']['embed'] ) ) {
foreach( $extract['embed']['url'] as $embed ) {
if ( preg_match( '/((youtube|vimeo|dailymotion)\.com|youtu.be)/', $embed ) ) {
if ( 0 == $return['count']['video'] ) {
$return['type'] = 'video';
$return['video'] = 'http://' . $embed;
$return['secure']['video'] = self::https( $return['video'] );
if ( false !== strpos( $embed, 'youtube' ) ) {
$return['image'] = self::get_video_poster( 'youtube', jetpack_get_youtube_id( $return['video'] ) );
$return['secure']['image'] = self::https( $return['image'] );
} else if ( false !== strpos( $embed, 'youtu.be' ) ) {
$youtube_id = jetpack_get_youtube_id( $return['video'] );
$return['video'] = 'http://youtube.com/watch?v=' . $youtube_id . '&feature=youtu.be';
$return['secure']['video'] = self::https( $return['video'] );
$return['image'] = self::get_video_poster( 'youtube', jetpack_get_youtube_id( $return['video'] ) );
$return['secure']['image'] = self::https( $return['image'] );
} else if ( false !== strpos( $embed, 'vimeo' ) ) {
$poster_image = get_post_meta( $post_id, 'vimeo_poster_image', true );
if ( !empty( $poster_image ) ) {
$return['image'] = $poster_image;
$poster_url_parts = parse_url( $poster_image );
$return['secure']['image'] = 'https://secure-a.vimeocdn.com' . $poster_url_parts['path'];
}
} else if ( false !== strpos( $embed, 'dailymotion' ) ) {
$return['image'] = str_replace( 'dailymotion.com/video/','dailymotion.com/thumbnail/video/', $embed );
$return['image'] = parse_url( $return['image'], PHP_URL_SCHEME ) === null ? 'http://' . $return['image'] : $return['image'];
$return['secure']['image'] = self::https( $return['image'] );
}
}
$return['count']['video']++;
}
}
}
// Do we really want to make the video the primary focus of the post?
if ( 'video' == $return['type'] ) {
$content = wpautop( strip_tags( $post->post_content ) );
$paragraphs = explode( '</p>', $content );
$number_of_paragraphs = 0;
foreach ( $paragraphs as $i => $paragraph ) {
// Don't include blank lines as a paragraph
if ( '' == trim( $paragraph ) ) {
unset( $paragraphs[$i] );
continue;
}
$number_of_paragraphs++;
}
$number_of_paragraphs = $number_of_paragraphs - $return['count']['video']; // subtract amount for videos..
// More than 2 paragraph? The video is not the primary focus so we can do some more analysis
if ( $number_of_paragraphs > 2 )
$return['type'] = 'standard';
}
// If we don't have any prioritized embed...
if ( 'standard' == $return['type'] ) {
if ( ( ! empty( $extract['has']['gallery'] ) || ! empty( $extract['shortcode']['gallery']['count'] ) ) && ! empty( $extract['image'] ) ) {
//... Then we prioritize galleries first (multiple images returned)
$return['type'] = 'gallery';
$return['images'] = $extract['image'];
foreach ( $return['images'] as $image ) {
$return['secure']['images'][] = array( 'url' => self::ssl_img( $image['url'] ) );
$return['count']['image']++;
}
} else if ( ! empty( $extract['has']['image'] ) ) {
// ... Or we try and select a single image that would make sense
$content = wpautop( strip_tags( $post->post_content ) );
$paragraphs = explode( '</p>', $content );
$number_of_paragraphs = 0;
foreach ( $paragraphs as $i => $paragraph ) {
// Don't include 'actual' captions as a paragraph
if ( false !== strpos( $paragraph, '[caption' ) ) {
unset( $paragraphs[$i] );
continue;
}
// Don't include blank lines as a paragraph
if ( '' == trim( $paragraph ) ) {
unset( $paragraphs[$i] );
continue;
}
$number_of_paragraphs++;
}
$return['image'] = $extract['image'][0]['url'];
$return['secure']['image'] = self::ssl_img( $return['image'] );
$return['count']['image']++;
if ( $number_of_paragraphs <= 2 && 1 == count( $extract['image'] ) ) {
// If we have lots of text or images, let's not treat it as an image post, but return its first image
$return['type'] = 'image';
}
}
}
if ( $switched ) {
restore_current_blog();
}
return $return;
}
static function https( $str ) {
return str_replace( 'http://', 'https://', $str );
}
static function ssl_img( $url ) {
if ( false !== strpos( $url, 'files.wordpress.com' ) ) {
return self::https( $url );
} else {
return self::https( jetpack_photon_url( $url ) );
}
}
static function get_video_poster( $type, $id ) {
if ( 'videopress' == $type ) {
if ( function_exists( 'video_get_highest_resolution_image_url' ) ) {
return video_get_highest_resolution_image_url( $id );
} else if ( class_exists( 'VideoPress_Video' ) ) {
$video = new VideoPress_Video( $id );
return $video->poster_frame_uri;
}
} else if ( 'youtube' == $type ) {
return 'http://img.youtube.com/vi/'.$id.'/0.jpg';
}
}
static function clean_text( $text ) {
return trim(
preg_replace(
'/[\s]+/',
' ',
preg_replace(
'@https?://[\S]+@',
'',
strip_shortcodes(
strip_tags(
$text
)
)
)
)
);
}
static function get_excerpt( $post_content, $post_excerpt, $max_words = 16, $max_chars = 256 ) {
if ( function_exists( 'wpcom_enhanced_excerpt_extract_excerpt' ) ) {
return self::clean_text( wpcom_enhanced_excerpt_extract_excerpt( array(
'text' => $post_content,
'excerpt_only' => true,
'show_read_more' => false,
'max_words' => $max_words,
'max_chars' => $max_chars,
'read_more_threshold' => 25,
) ) );
} else {
/** This filter is documented in core/src/wp-includes/post-template.php */
$post_excerpt = apply_filters( 'get_the_excerpt', $post_excerpt );
return self::clean_text( $post_excerpt );
}
}
static function get_word_count( $post_content ) {
return str_word_count( self::clean_text( $post_content ) );
}
static function get_word_remaining_count( $post_content, $excerpt_content ) {
return str_word_count( self::clean_text( $post_content ) ) - str_word_count( self::clean_text( $excerpt_content ) );
}
static function get_link_count( $post_content ) {
return preg_match_all( '/\<a[\> ]/', $post_content, $matches );
}
}