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<?php |
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namespace epiphyt\Embed_Privacy\thumbnail\provider; |
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|
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use epiphyt\Embed_Privacy\thumbnail\Thumbnail; |
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|
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/** |
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* YouTube thumbnail implementation. |
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* |
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* @author Epiphyt |
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* @license GPL2 |
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* @package epiphyt\Embed_Privacy |
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*/ |
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final class YouTube extends Thumbnail_Provider implements Thumbnail_Provider_Interface { |
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/** |
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* @var string[] List of valid domains for the thumbnail provider |
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*/ |
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public static $domains = [ |
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'youtu.be', |
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'youtube.com', |
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]; |
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|
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/** |
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* @var string Thumbnail provider name |
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*/ |
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public static $name = 'youtube'; |
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|
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/** |
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* {@inheritDoc} |
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*/ |
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public static function get( $data, $url ) { |
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if ( ! self::is_provider_embed( $url ) ) { |
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return; |
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} |
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|
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$id = self::get_id_by_thumbnail_url( $data->thumbnail_url ); |
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|
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if ( $id ) { |
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self::save( $id, $url ); |
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} |
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} |
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|
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/** |
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* {@inheritDoc} |
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*/ |
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public static function get_id( $content ) { |
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$id = \str_replace( |
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[ |
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'https://www.youtube.com/watch?v=', |
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'https://www.youtube.com/embed/', |
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'https://youtu.be/', |
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], |
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'', |
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$content |
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); |
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$id = \str_contains( $id, '?' ) ? \substr( $id, 0, \strpos( $id, '?' ) ) : $id; |
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|
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return $id; |
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} |
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|
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/** |
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* Get the thumbnail ID from a thumbnail URL. |
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* |
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* @param string $url Thumbnail URL to get the thumbnail ID from |
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* @return string Thumbnail ID |
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*/ |
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public static function get_id_by_thumbnail_url( $url ) { |
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// format: <id>/<thumbnail-name>.jpg |
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$extracted = \str_replace( 'https://i.ytimg.com/vi/', '', $url ); |
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// first part is the ID |
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$parts = \explode( '/', $extracted ); |
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|
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return isset( $parts[0] ) ? $parts[0] : ''; |
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} |
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|
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/** |
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* {@inheritDoc} |
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*/ |
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public static function get_title() { |
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return \_x( 'YouTube', 'embed provider', 'embed-privacy' ); |
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} |
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|
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/** |
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* {@inheritDoc} |
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*/ |
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public static function save( $id, $url, $thumbnail_url = '' ) { |
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$post = \get_post(); |
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|
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if ( ! $post ) { |
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return; |
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} |
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|
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require_once \ABSPATH . 'wp-admin/includes/file.php'; |
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|
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$directory = Thumbnail::get_directory(); |
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// list of images we try to retrieve |
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// see: https://stackoverflow.com/a/2068371 |
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$images = [ |
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'maxresdefault', |
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'hqdefault', |
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'0', |
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]; |
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$thumbnail_url = 'https://img.youtube.com/vi/%1$s/%2$s.jpg'; |
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|
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foreach ( $images as $image ) { |
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$thumbnail_path = $directory['base_dir'] . '/' . self::$name . '-' . $id . '-' . $image . '.jpg'; |
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|
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if ( ! \file_exists( $thumbnail_path ) ) { |
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$file = \download_url( \sprintf( $thumbnail_url, $id, $image ) ); |
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|
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if ( \is_wp_error( $file ) ) { |
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continue; |
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} |
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|
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/** @var \WP_Filesystem_Direct $wp_filesystem */ |
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global $wp_filesystem; |
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|
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// initialize the WP filesystem if not exists |
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if ( empty( $wp_filesystem ) ) { |
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\WP_Filesystem(); |
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} |
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|
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$wp_filesystem->move( $file, $thumbnail_path ); |
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} |
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|
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\update_post_meta( |
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$post->ID, |
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Thumbnail::METADATA_PREFIX . '_' . self::$name . '_' . $id, |
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self::$name . '-' . $id . '-' . $image . '.jpg' |
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); |
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\update_post_meta( $post->ID, Thumbnail::METADATA_PREFIX . '_' . self::$name . '_' . $id . '_url', $url ); |
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break; |
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} |
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} |
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} |
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|
