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<?php //phpcs:ignore WordPress.Files.FileName.InvalidClassFileName |
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|
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use Automattic\Jetpack\Assets; |
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use Automattic\Jetpack\Post_Media\Images; |
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use Automattic\Jetpack\Stats\Tracking_Pixel as Stats_Tracking_Pixel; |
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use Automattic\Jetpack\Sync\Functions; |
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|
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/** |
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* Manages compatibility with the amp-wp plugin |
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* |
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* @see https://github.com/Automattic/amp-wp |
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*/ |
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class Jetpack_AMP_Support { |
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|
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/** |
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* Apply custom AMP changes on the front-end. |
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*/ |
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public static function init() { |
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|
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// Add Stats tracking pixel on Jetpack sites when the Stats module is active. |
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if ( |
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Jetpack::is_module_active( 'stats' ) |
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&& ! ( defined( 'IS_WPCOM' ) && IS_WPCOM ) |
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) { |
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add_action( 'amp_post_template_footer', array( 'Jetpack_AMP_Support', 'add_stats_pixel' ) ); |
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} |
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|
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// Sharing. |
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add_filter( 'jetpack_sharing_display_markup', array( 'Jetpack_AMP_Support', 'render_sharing_html' ), 10, 2 ); |
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add_filter( 'sharing_enqueue_scripts', array( 'Jetpack_AMP_Support', 'amp_disable_sharedaddy_css' ) ); |
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add_action( 'wp_enqueue_scripts', array( 'Jetpack_AMP_Support', 'amp_enqueue_sharing_css' ) ); |
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|
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// Sharing for Reader mode. |
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if ( function_exists( 'jetpack_social_menu_include_svg_icons' ) ) { |
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add_action( 'amp_post_template_footer', 'jetpack_social_menu_include_svg_icons' ); |
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} |
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add_action( 'amp_post_template_css', array( 'Jetpack_AMP_Support', 'amp_reader_sharing_css' ), 10, 0 ); |
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|
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// enforce freedom mode for videopress. |
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add_filter( 'videopress_shortcode_options', array( 'Jetpack_AMP_Support', 'videopress_enable_freedom_mode' ) ); |
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|
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// include Jetpack og tags when rendering native AMP head. |
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add_action( 'amp_post_template_head', array( 'Jetpack_AMP_Support', 'amp_post_jetpack_og_tags' ) ); |
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|
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// Post rendering changes for legacy AMP. |
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add_action( 'pre_amp_render_post', array( 'Jetpack_AMP_Support', 'amp_disable_the_content_filters' ) ); |
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|
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// Disable Comment Likes. |
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add_filter( 'jetpack_comment_likes_enabled', array( 'Jetpack_AMP_Support', 'comment_likes_enabled' ) ); |
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|
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// Transitional mode AMP should not have comment likes. |
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add_filter( 'the_content', array( 'Jetpack_AMP_Support', 'disable_comment_likes_before_the_content' ) ); |
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|
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// Add post template metadata for legacy AMP. |
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add_filter( 'amp_post_template_metadata', array( 'Jetpack_AMP_Support', 'amp_post_template_metadata' ), 10, 2 ); |
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|
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// Filter photon image args for AMP Stories. |
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add_filter( 'jetpack_photon_post_image_args', array( 'Jetpack_AMP_Support', 'filter_photon_post_image_args_for_stories' ), 10, 2 ); |
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|
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// Sync the amp-options. |
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add_filter( 'jetpack_options_whitelist', array( 'Jetpack_AMP_Support', 'filter_jetpack_options_safelist' ) ); |
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} |
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|
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/** |
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* Disable the Comment Likes feature on AMP views. |
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* |
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* @param bool $enabled Should comment likes be enabled. |
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*/ |
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public static function comment_likes_enabled( $enabled ) { |
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return $enabled && ! self::is_amp_request(); |
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} |
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|
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/** |
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* Apply custom AMP changes in wp-admin. |
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*/ |
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public static function admin_init() { |
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// disable Likes metabox for post editor if AMP canonical disabled. |
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add_filter( 'post_flair_disable', array( 'Jetpack_AMP_Support', 'is_amp_canonical' ), 99 ); |
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} |
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|
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/** |
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* Is the page in AMP 'canonical mode'. |
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* Used when themes register support for AMP with `add_theme_support( 'amp' )`. |
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* |
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* @return bool is_amp_canonical |
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*/ |
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public static function is_amp_canonical() { |
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return function_exists( 'amp_is_canonical' ) && amp_is_canonical(); |
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} |
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|
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/** |
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* Is AMP available for this request |
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* This returns false for admin, CLI requests etc. |
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* |
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* @return bool is_amp_available |
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*/ |
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public static function is_amp_available() { |
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return ( function_exists( 'amp_is_available' ) && amp_is_available() ); |
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} |
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|
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/** |
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* Does the page return AMP content. |
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* |
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* @return bool $is_amp_request Are we on am AMP view. |
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*/ |
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public static function is_amp_request() { |
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$is_amp_request = ( function_exists( 'is_amp_endpoint' ) && is_amp_endpoint() ); |
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|
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/** |
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* Returns true if the current request should return valid AMP content. |
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* |
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* @since 6.2.0 |
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* |
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* @param boolean $is_amp_request Is this request supposed to return valid AMP content? |
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*/ |
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return apply_filters( 'jetpack_is_amp_request', $is_amp_request ); |
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} |
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|
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/** |
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* Determines whether the legacy AMP post templates are being used. |
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* |
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* @since 10.6.0 |
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* |
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* @return bool |
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*/ |
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public static function is_amp_legacy() { |
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return ( function_exists( 'amp_is_legacy' ) && amp_is_legacy() ); |
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} |
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|
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/** |
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* Remove content filters added by Jetpack. |
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*/ |
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public static function amp_disable_the_content_filters() { |
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if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) { |
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add_filter( 'protected_embeds_use_form_post', '__return_false' ); |
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remove_filter( 'the_title', 'widont' ); |
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} |
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|
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remove_filter( 'pre_kses', array( 'Filter_Embedded_HTML_Objects', 'filter' ), 11 ); |
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remove_filter( 'pre_kses', array( 'Filter_Embedded_HTML_Objects', 'maybe_create_links' ), 100 ); |
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} |
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|
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/** |
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* Do not add comment likes on AMP requests. |
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* |
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* @param string $content Post content. |
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*/ |
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public static function disable_comment_likes_before_the_content( $content ) { |
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if ( self::is_amp_request() ) { |
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remove_filter( 'comment_text', 'comment_like_button', 12 ); |
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} |
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return $content; |
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} |
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|
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/** |
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* Add Jetpack stats pixel. |
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* |
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* @since 6.2.1 |
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*/ |
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public static function add_stats_pixel() { |
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if ( ! has_action( 'wp_footer', array( Stats_Tracking_Pixel::class, 'add_amp_pixel' ) ) ) { |
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return; |
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} |
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|
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$stats_data = Stats_Tracking_Pixel::build_view_data(); |
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Stats_Tracking_Pixel::render_amp_footer( $stats_data ); |
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} |
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|
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/** |
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* Add publisher and image metadata to legacy AMP post. |
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* |
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* @since 6.2.0 |
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* |
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* @param array $metadata Metadata array. |
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* @param WP_Post $post Post. |
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* @return array Modified metadata array. |
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*/ |
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public static function amp_post_template_metadata( $metadata, $post ) { |
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if ( isset( $metadata['publisher'] ) && ! isset( $metadata['publisher']['logo'] ) ) { |
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$metadata = self::add_site_icon_to_metadata( $metadata ); |
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} |
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|
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if ( ! isset( $metadata['image'] ) && ! empty( $post ) ) { |
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$metadata = self::add_image_to_metadata( $metadata, $post ); |
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} |
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|
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return $metadata; |
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} |
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|
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/** |
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* Add blavatar to legacy AMP post metadata. |
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* |
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* @since 6.2.0 |
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* |
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* @param array $metadata Metadata. |
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* |
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* @return array Metadata. |
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*/ |
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private static function add_site_icon_to_metadata( $metadata ) { |
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$size = 60; |
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$site_icon_url = class_exists( 'Automattic\\Jetpack\\Sync\\Functions' ) ? Functions::site_icon_url( $size ) : ''; |
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|
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if ( function_exists( 'blavatar_domain' ) ) { |
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$metadata['publisher']['logo'] = array( |
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'@type' => 'ImageObject', |
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'url' => blavatar_url( blavatar_domain( site_url() ), 'img', $size, self::staticize_subdomain( 'https://wordpress.com/i/favicons/apple-touch-icon-60x60.png' ) ), |
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'width' => $size, |
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'height' => $size, |
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); |
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} elseif ( $site_icon_url ) { |
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$metadata['publisher']['logo'] = array( |
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'@type' => 'ImageObject', |
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'url' => $site_icon_url, |
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'width' => $size, |
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'height' => $size, |
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); |
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} |
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|
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return $metadata; |
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} |
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|
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/** |
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* Add image to legacy AMP post metadata. |
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* |
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* @since 6.2.0 |
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* |
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* @param array $metadata Metadata. |
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* @param WP_Post $post Post. |
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* @return array Metadata. |
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*/ |
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private static function add_image_to_metadata( $metadata, $post ) { |
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$image_args = array( |
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'fallback_to_avatars' => true, |
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'avatar_size' => 200, |
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// AMP already attempts these. |
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'from_thumbnail' => false, |
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'from_attachment' => false, |
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); |
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|
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// Every source left enabled above is parsed out of the body. |
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if ( \Automattic\Jetpack\SEO\Content_Gate::is_gated( $post ) ) { |
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$image_args += array( |
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'from_slideshow' => false, |
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'from_gallery' => false, |
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'from_blocks' => false, |
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'from_html' => false, |
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); |
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} |
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|
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$image = Images::get_image( $post->ID, $image_args ); |
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|
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if ( empty( $image ) ) { |
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return self::add_fallback_image_to_metadata( $metadata ); |
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} |
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|
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if ( ! isset( $image['src_width'] ) ) { |
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$dimensions = self::extract_image_dimensions_from_getimagesize( |
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array( |
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$image['src'] => false, |
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) |
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); |
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|
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if ( false !== $dimensions[ $image['src'] ] ) { |
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$image['src_width'] = $dimensions['width']; |
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$image['src_height'] = $dimensions['height']; |
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} |
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} |
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|
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$metadata['image'] = array( |
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'@type' => 'ImageObject', |
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'url' => $image['src'], |
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); |
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if ( isset( $image['src_width'] ) ) { |
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$metadata['image']['width'] = $image['src_width']; |
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} |
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if ( isset( $image['src_width'] ) ) { |
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$metadata['image']['height'] = $image['src_height']; |
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} |
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|
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return $metadata; |
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} |
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|
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/** |
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* Add fallback image to legacy AMP post metadata. |
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* |
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* @since 6.2.0 |
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* |
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* @param array $metadata Metadata. |
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* @return array Metadata. |
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*/ |
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private static function add_fallback_image_to_metadata( $metadata ) { |
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/** This filter is documented in functions.opengraph.php */ |
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$default_image = apply_filters( 'jetpack_open_graph_image_default', 'https://wordpress.com/i/blank.jpg' ); |
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|
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$metadata['image'] = array( |
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'@type' => 'ImageObject', |
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'url' => self::staticize_subdomain( $default_image ), |
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'width' => 200, |
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'height' => 200, |
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); |
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|
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return $metadata; |
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} |
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|
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/** |
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* Return static WordPress.com domain to use to load resources from WordPress.com. |
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* |
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* @param string $domain Asset URL. |
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*/ |
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private static function staticize_subdomain( $domain ) { |
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// deal with WPCOM vs Jetpack. |
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if ( function_exists( 'staticize_subdomain' ) ) { |
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return staticize_subdomain( $domain ); |
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} else { |
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return Assets::staticize_subdomain( $domain ); |
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} |
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} |
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|
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/** |
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* Extract image dimensions via wpcom/imagesize, only on WPCOM |
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* |
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* @since 6.2.0 |
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* |
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* @param array $dimensions Dimensions. |
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* @return array Dimensions. |
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*/ |
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private static function extract_image_dimensions_from_getimagesize( $dimensions ) { |
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if ( ! ( defined( 'IS_WPCOM' ) && IS_WPCOM && function_exists( 'require_lib' ) ) ) { |
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return $dimensions; |
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} |
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require_lib( 'wpcom/imagesize' ); |
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|
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foreach ( $dimensions as $url => $value ) { |
| 334 |
if ( is_array( $value ) ) { |
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continue; |
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} |
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$result = wpcom_getimagesize( $url ); |
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if ( is_array( $result ) ) { |
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$dimensions[ $url ] = array( |
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'width' => $result[0], |
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'height' => $result[1], |
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); |
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} |
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} |
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|
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return $dimensions; |
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} |
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|
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/** |
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* Display Open Graph Meta tags in AMP views. |
| 351 |
*/ |
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public static function amp_post_jetpack_og_tags() { |
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if ( ! ( defined( 'IS_WPCOM' ) && IS_WPCOM ) ) { |
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Jetpack::init()->check_open_graph(); |
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} |
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|
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if ( function_exists( 'jetpack_og_tags' ) ) { |
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jetpack_og_tags(); |
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} |
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} |
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|
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/** |
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* Force Freedom mode in VideoPress. |
| 364 |
* |
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* @param array $options Array of VideoPress shortcode options. |
| 366 |
*/ |
| 367 |
public static function videopress_enable_freedom_mode( $options ) { |
| 368 |
if ( self::is_amp_request() ) { |
| 369 |
$options['freedom'] = true; |
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} |
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return $options; |
| 372 |
} |
| 373 |
|
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/** |
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* Display custom markup for the sharing buttons when in an AMP view. |
| 376 |
* |
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* @param string $markup Content markup of the Jetpack sharing links. |
| 378 |
* @param array $sharing_enabled Array of Sharing Services currently enabled. |
| 379 |
*/ |
| 380 |
public static function render_sharing_html( $markup, $sharing_enabled ) { |
| 381 |
global $post; |
| 382 |
|
| 383 |
if ( empty( $post ) ) { |
| 384 |
return ''; |
| 385 |
} |
| 386 |
|
| 387 |
if ( ! self::is_amp_request() ) { |
| 388 |
return $markup; |
| 389 |
} |
| 390 |
|
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remove_action( 'wp_footer', 'sharing_add_footer' ); |
| 392 |
if ( empty( $sharing_enabled ) ) { |
| 393 |
return $markup; |
| 394 |
} |
| 395 |
|
| 396 |
$sharing_links = array(); |
| 397 |
foreach ( $sharing_enabled['visible'] as $service ) { |
| 398 |
$sharing_link = $service->get_amp_display( $post ); |
| 399 |
if ( ! empty( $sharing_link ) ) { |
| 400 |
$sharing_links[] = $sharing_link; |
| 401 |
} |
| 402 |
} |
| 403 |
|
| 404 |
// Replace the existing unordered list with AMP sharing buttons. |
| 405 |
$markup = preg_replace( '#<ul>(.+)</ul>#', implode( '', $sharing_links ), $markup ); |
| 406 |
|
| 407 |
// Remove any lingering share-end list items. |
| 408 |
$markup = str_replace( '<li class="share-end"></li>', '', $markup ); |
| 409 |
|
| 410 |
return $markup; |
| 411 |
} |
| 412 |
|
| 413 |
/** |
| 414 |
* Tells Jetpack not to enqueue CSS for share buttons. |
| 415 |
* |
| 416 |
* @param bool $enqueue Whether or not to enqueue. |
| 417 |
* @return bool Whether or not to enqueue. |
| 418 |
*/ |
| 419 |
public static function amp_disable_sharedaddy_css( $enqueue ) { |
| 420 |
if ( self::is_amp_request() ) { |
| 421 |
$enqueue = false; |
| 422 |
} |
| 423 |
|
| 424 |
return $enqueue; |
| 425 |
} |
| 426 |
|
| 427 |
/** |
| 428 |
* Enqueues the AMP specific sharing styles for the sharing icons. |
| 429 |
*/ |
| 430 |
public static function amp_enqueue_sharing_css() { |
| 431 |
if ( |
| 432 |
Jetpack::is_module_active( 'sharedaddy' ) |
| 433 |
&& self::is_amp_request() |
| 434 |
&& ! self::is_amp_legacy() |
| 435 |
) { |
| 436 |
wp_enqueue_style( 'sharedaddy-amp', plugin_dir_url( __DIR__ ) . 'modules/sharedaddy/amp-sharing.css', array( 'social-logos' ), JETPACK__VERSION ); |
| 437 |
} |
| 438 |
} |
| 439 |
|
| 440 |
/** |
| 441 |
* For the AMP Reader mode template, include styles that we need. |
| 442 |
*/ |
| 443 |
public static function amp_reader_sharing_css() { |
| 444 |
// If sharing is not enabled, we should not proceed to render the CSS. |
| 445 |
if ( ! defined( 'JETPACK_SOCIAL_LOGOS_DIR' ) || ! defined( 'JETPACK_SOCIAL_LOGOS_URL' ) || ! defined( 'WP_SHARING_PLUGIN_DIR' ) ) { |
| 446 |
return; |
| 447 |
} |
| 448 |
|
| 449 |
/* |
| 450 |
* We'll need to output the full contents of the 2 files |
| 451 |
* in the head on AMP views. We can't rely on regular enqueues here. |
| 452 |
* @todo As of AMP plugin v1.5, you can actually rely on regular enqueues thanks to https://github.com/ampproject/amp-wp/pull/4299. Once WPCOM upgrades AMP, then this method can be eliminated. |
| 453 |
* |
| 454 |
* phpcs:disable WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents |
| 455 |
* phpcs:disable WordPress.Security.EscapeOutput.OutputNotEscaped |
| 456 |
*/ |
| 457 |
$css = file_get_contents( JETPACK_SOCIAL_LOGOS_DIR . 'social-logos.css' ); |
| 458 |
$css = preg_replace( '#(?<=url\(")(?=social-logos\.)#', JETPACK_SOCIAL_LOGOS_URL, $css ); // Make sure font files get their absolute paths. |
| 459 |
echo $css; |
| 460 |
echo file_get_contents( WP_SHARING_PLUGIN_DIR . 'amp-sharing.css' ); |
| 461 |
|
| 462 |
/* |
| 463 |
* phpcs:enable WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents |
| 464 |
* phpcs:enable WordPress.Security.EscapeOutput.OutputNotEscaped |
| 465 |
*/ |
| 466 |
} |
| 467 |
|
| 468 |
/** |
| 469 |
* Ensure proper Photon image dimensions for AMP Stories. |
| 470 |
* |
| 471 |
* @param array $args Array of Photon Arguments. |
| 472 |
* @param array $details { |
| 473 |
* Array of image details. |
| 474 |
* |
| 475 |
* @type string $tag Image tag (Image HTML output). |
| 476 |
* @type string $src Image URL. |
| 477 |
* @type string $src_orig Original Image URL. |
| 478 |
* @type int|false $width Image width. |
| 479 |
* @type int|false $height Image height. |
| 480 |
* @type int|false $width_orig Original image width before constrained by content_width. |
| 481 |
* @type int|false $height_orig Original Image height before constrained by content_width. |
| 482 |
* @type string $transform_orig Original transform before constrained by content_width. |
| 483 |
* } |
| 484 |
* @return array Args. |
| 485 |
*/ |
| 486 |
public static function filter_photon_post_image_args_for_stories( $args, $details ) { |
| 487 |
if ( ! is_singular( 'amp_story' ) ) { |
| 488 |
return $args; |
| 489 |
} |
| 490 |
|
| 491 |
// Percentage-based dimensions are not allowed in AMP, so this shouldn't happen, but short-circuit just in case. |
| 492 |
if ( str_contains( $details['width_orig'], '%' ) || str_contains( $details['height_orig'], '%' ) ) { |
| 493 |
return $args; |
| 494 |
} |
| 495 |
|
| 496 |
$max_height = 1280; // See image size with the slug \AMP_Story_Post_Type::MAX_IMAGE_SIZE_SLUG. |
| 497 |
$transform = $details['transform_orig']; |
| 498 |
$width = $details['width_orig']; |
| 499 |
$height = $details['height_orig']; |
| 500 |
|
| 501 |
// If height is available, constrain to $max_height. |
| 502 |
if ( false !== $height ) { |
| 503 |
if ( $height > $max_height && false !== $height ) { |
| 504 |
$width = ( $max_height * $width ) / $height; |
| 505 |
$height = $max_height; |
| 506 |
} elseif ( $height > $max_height ) { |
| 507 |
$height = $max_height; |
| 508 |
} |
| 509 |
} |
| 510 |
|
| 511 |
/* |
| 512 |
* Set a height if none is found. |
| 513 |
* If height is set in this manner and height is available, use `fit` instead of `resize` to prevent skewing. |
| 514 |
*/ |
| 515 |
if ( false === $height ) { |
| 516 |
$height = $max_height; |
| 517 |
if ( false !== $width ) { |
| 518 |
$transform = 'fit'; |
| 519 |
} |
| 520 |
} |
| 521 |
|
| 522 |
// Build array of Photon args and expose to filter before passing to Photon URL function. |
| 523 |
$args = array(); |
| 524 |
|
| 525 |
if ( false !== $width && false !== $height ) { |
| 526 |
$args[ $transform ] = $width . ',' . $height; |
| 527 |
} elseif ( false !== $width ) { |
| 528 |
$args['w'] = $width; |
| 529 |
} elseif ( false !== $height ) { |
| 530 |
$args['h'] = $height; |
| 531 |
} |
| 532 |
|
| 533 |
return $args; |
| 534 |
} |
| 535 |
|
| 536 |
/** |
| 537 |
* Adds amp-options to the list of options to sync, if AMP is available |
| 538 |
* |
| 539 |
* @param array $options_safelist Safelist of options to sync. |
| 540 |
* |
| 541 |
* @return array Updated options safelist |
| 542 |
*/ |
| 543 |
public static function filter_jetpack_options_safelist( $options_safelist ) { |
| 544 |
if ( function_exists( 'is_amp_endpoint' ) ) { |
| 545 |
$options_safelist[] = 'amp-options'; |
| 546 |
} |
| 547 |
return $options_safelist; |
| 548 |
} |
| 549 |
} |
| 550 |
|
