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