Update jetpack 6.2

1 files changed, 334 insertions, 0 deletions

diff --git a/plugins/jetpack/3rd-party/class.jetpack-amp-support.php b/plugins/jetpack/3rd-party/class.jetpack-amp-support.php
new file mode 100644
index 00000000..4a5b7bd3
--- /dev/null
+++ b/plugins/jetpack/3rd-party/class.jetpack-amp-support.php
@@ -0,0 +1,334 @@
+<?php
+
+/**
+ * Manages compatibility with the amp-wp plugin
+ *
+ * @see https://github.com/Automattic/amp-wp
+ */
+class Jetpack_AMP_Support {
+
+	static function init() {
+		if ( ! self::is_amp_request() ) {
+			return;
+		}
+
+		// carousel
+		add_filter( 'jp_carousel_maybe_disable', '__return_true' );
+
+		// sharing
+		add_filter( 'sharing_enqueue_scripts', '__return_false' );
+		add_filter( 'jetpack_sharing_counts', '__return_false' );
+		add_filter( 'sharing_js', '__return_false' );
+		add_filter( 'jetpack_sharing_display_markup', array( 'Jetpack_AMP_Support', 'render_sharing_html' ), 10, 2 );
+
+		// disable lazy images
+		add_filter( 'lazyload_is_enabled', '__return_false' );
+
+		// disable imploding CSS
+		add_filter( 'jetpack_implode_frontend_css', '__return_false' );
+
+		// enforce freedom mode for videopress
+		add_filter( 'videopress_shortcode_options', array( 'Jetpack_AMP_Support', 'videopress_enable_freedom_mode' ) );
+
+		// include Jetpack og tags when rendering native AMP head
+		add_action( 'amp_post_template_head', array( 'Jetpack_AMP_Support', 'amp_post_jetpack_og_tags' ) );
+
+		// Post rendering changes for legacy AMP
+		add_action( 'pre_amp_render_post', array( 'Jetpack_AMP_Support', 'amp_disable_the_content_filters' ) );
+
+		// Add post template metadata for legacy AMP
+		add_filter( 'amp_post_template_metadata', array( 'Jetpack_AMP_Support', 'amp_post_template_metadata' ), 10, 2 );
+	}
+
+	static function admin_init() {
+		// disable Likes metabox for post editor if AMP canonical disabled
+		add_filter( 'post_flair_disable',  array( 'Jetpack_AMP_Support', 'is_amp_canonical' ), 99 );
+	}
+
+	static function init_filter_jetpack_widgets() {
+		if ( ! self::is_amp_request() ) {
+			return;
+		}
+
+		// widgets
+		add_filter( 'jetpack_widgets_to_include', array( 'Jetpack_AMP_Support', 'filter_available_widgets' ) );
+	}
+
+	static function is_amp_canonical() {
+		return function_exists( 'amp_is_canonical' ) && amp_is_canonical();
+	}
+
+	static function is_amp_request() {
+		// can't use is_amp_endpoint() since it's not ready early enough in init.
+		// is_amp_endpoint() implementation calls is_feed, which bails with a notice if plugins_loaded isn't finished
+		// "Conditional query tags do not work before the query is run"
+		$is_amp_request =
+				defined( 'AMP__VERSION' )
+			&&
+				! is_admin() // this is necessary so that modules can still be enabled/disabled/configured as per normal via Jetpack admin
+			&&
+				function_exists( 'amp_is_canonical' ) // this is really just testing if the plugin exists
+			&&
+				(
+					amp_is_canonical()
+				||
+					isset( $_GET[ amp_get_slug() ] )
+				||
+					( version_compare( AMP__VERSION, '1.0', '<' ) && self::has_amp_suffix() ) // after AMP 1.0, the amp suffix will no longer be supported
+				);
+
+		/**
+		 * Returns true if the current request should return valid AMP content.
+		 *
+		 * @since 6.2.0
+		 *
+		 * @param boolean $is_amp_request Is this request supposed to return valid AMP content?
+		 */
+		return apply_filters( 'jetpack_is_amp_request', $is_amp_request );
+	}
+
+	static function has_amp_suffix() {
+		$request_path = wp_parse_url( $_SERVER['REQUEST_URI'], PHP_URL_PATH );
+		return $request_path && preg_match( '#/amp/?$#i', $request_path );
+	}
+
+	static function filter_available_widgets( $widgets ) {
+		if ( self::is_amp_request() ) {
+			$widgets = array_filter( $widgets, array( 'Jetpack_AMP_Support', 'is_supported_widget' ) );
+		}
+
+		return $widgets;
+	}
+
+	static function is_supported_widget( $widget_path ) {
+		return substr( $widget_path, -14 ) !== '/milestone.php';
+	}
+
+	static function amp_disable_the_content_filters() {
+		if ( defined( 'WPCOM') && WPCOM ) {
+			add_filter( 'videopress_show_2015_player', '__return_true' );
+			add_filter( 'protected_embeds_use_form_post', '__return_false' );
+			remove_filter( 'the_title', 'widont' );
+		}
+
+		remove_filter( 'pre_kses', array( 'Filter_Embedded_HTML_Objects', 'filter' ), 11 );
+		remove_filter( 'pre_kses', array( 'Filter_Embedded_HTML_Objects', 'maybe_create_links' ), 100 );
+	}
+
+	/**
+	 * Add publisher and image metadata to legacy AMP post.
+	 *
+	 * @since 6.2.0
+	 *
+	 * @param array   $metadata Metadata array.
+	 * @param WP_Post $post     Post.
+	 * @return array Modified metadata array.
+	 */
+	static function amp_post_template_metadata( $metadata, $post ) {
+		if ( isset( $metadata['publisher'] ) && ! isset( $metadata['publisher']['logo'] ) ) {
+			$metadata = self::add_site_icon_to_metadata( $metadata );
+		}
+
+		if ( ! isset( $metadata['image'] ) ) {
+			$metadata = self::add_image_to_metadata( $metadata, $post );
+		}
+
+		return $metadata;
+	}
+
+	/**
+	 * Add blavatar to legacy AMP post metadata.
+	 *
+	 * @since 6.2.0
+	 *
+	 * @param array $metadata Metadata.
+	 * @return array Metadata.
+	 */
+	static function add_site_icon_to_metadata( $metadata ) {
+		$size = 60;
+
+		if ( function_exists( 'blavatar_domain' ) ) {
+			$metadata['publisher']['logo'] = array(
+				'@type'  => 'ImageObject',
+				'url'    => blavatar_url( blavatar_domain( site_url() ), 'img', $size, self::staticize_subdomain( 'https://wordpress.com/i/favicons/apple-touch-icon-60x60.png' ) ),
+				'width'  => $size,
+				'height' => $size,
+			);
+		} else if ( $site_icon_url = Jetpack_Sync_Functions::site_icon_url( $size ) ) {
+			$metadata['publisher']['logo'] = array(
+				'@type'  => 'ImageObject',
+				'url'    => $site_icon_url,
+				'width'  => $size,
+				'height' => $size,
+			);
+		}
+
+		return $metadata;
+	}
+
+	/**
+	 * Add image to legacy AMP post metadata.
+	 *
+	 * @since 6.2.0
+	 *
+	 * @param array   $metadata Metadata.
+	 * @param WP_Post $post     Post.
+	 * @return array Metadata.
+	 */
+	static function add_image_to_metadata( $metadata, $post ) {
+		$image = Jetpack_PostImages::get_image( $post->ID, array(
+			'fallback_to_avatars' => true,
+			'avatar_size'         => 200,
+			// AMP already attempts these.
+			'from_thumbnail'      => false,
+			'from_attachment'     => false,
+		) );
+
+		if ( empty( $image ) ) {
+			return self::add_fallback_image_to_metadata( $metadata );
+		}
+
+		if ( ! isset( $image['src_width'] ) ) {
+			$dimensions = self::extract_image_dimensions_from_getimagesize( array(
+				$image['src'] => false,
+			) );
+
+			if ( false !== $dimensions[ $image['src'] ] ) {
+				$image['src_width']  = $dimensions['width'];
+				$image['src_height'] = $dimensions['height'];
+			}
+		}
+
+		$metadata['image'] = array(
+			'@type'  => 'ImageObject',
+			'url'    => $image['src'],
+			'width'  => $image['src_width'],
+			'height' => $image['src_height'],
+		);
+
+		return $metadata;
+	}
+
+	/**
+	 * Add fallback image to legacy AMP post metadata.
+	 *
+	 * @since 6.2.0
+	 *
+	 * @param array $metadata Metadata.
+	 * @return array Metadata.
+	 */
+	static function add_fallback_image_to_metadata( $metadata ) {
+		/** This filter is documented in functions.opengraph.php */
+		$default_image = apply_filters( 'jetpack_open_graph_image_default', 'https://wordpress.com/i/blank.jpg' );
+
+		$metadata['image'] = array(
+			'@type'  => 'ImageObject',
+			'url'    => self::staticize_subdomain( $default_image ),
+			'width'  => 200,
+			'height' => 200,
+		);
+
+		return $metadata;
+	}
+
+	static function staticize_subdomain( $domain ) {
+		// deal with WPCOM vs Jetpack
+		if ( function_exists( 'staticize_subdomain' ) ) {
+			return staticize_subdomain( $domain );
+		} else {
+			return Jetpack::staticize_subdomain( $domain );
+		}
+	}
+
+	/**
+	 * Extract image dimensions via wpcom/imagesize, only on WPCOM
+	 *
+	 * @since 6.2.0
+	 *
+	 * @param array $dimensions Dimensions.
+	 * @return array Dimensions.
+	 */
+	static function extract_image_dimensions_from_getimagesize( $dimensions ) {
+		if ( ! ( defined('WPCOM') && WPCOM && function_exists( 'require_lib' ) ) ) {
+			return $dimensions;
+		}
+		require_lib( 'wpcom/imagesize' );
+
+		foreach ( $dimensions as $url => $value ) {
+			if ( is_array( $value ) ) {
+				continue;
+			}
+			$result = wpcom_getimagesize( $url );
+			if ( is_array( $result ) ) {
+				$dimensions[ $url ] = array(
+					'width'  => $result[0],
+					'height' => $result[1],
+				);
+			}
+		}
+
+		return $dimensions;
+	}
+
+	static function amp_post_jetpack_og_tags() {
+		Jetpack::init()->check_open_graph();
+		if ( function_exists( 'jetpack_og_tags' ) ) {
+			jetpack_og_tags();
+		}
+	}
+
+	static function videopress_enable_freedom_mode( $options ) {
+		$options['freedom'] = true;
+		return $options;
+	}
+
+	static function render_sharing_html( $markup, $sharing_enabled ) {
+		remove_action( 'wp_footer', 'sharing_add_footer' );
+		if ( empty( $sharing_enabled ) ) {
+			return $markup;
+		}
+		$supported_services = array(
+			'facebook'      => array(
+				/** This filter is documented in modules/sharedaddy/sharing-sources.php */
+				'data-param-app_id' => apply_filters( 'jetpack_sharing_facebook_app_id', '249643311490' ),
+			),
+			'twitter'       => array(),
+			'pinterest'     => array(),
+			'whatsapp'      => array(),
+			'google-plus-1' => array(
+				'type' => 'gplus',
+			),
+			'tumblr'        => array(),
+			'linkedin'      => array(),
+		);
+		$sharing_links = array();
+		foreach ( $sharing_enabled['visible'] as $id => $service ) {
+			if ( ! isset( $supported_services[ $id ] ) ) {
+				$sharing_links[] = "<!-- not supported: $id -->";
+				continue;
+			}
+			$args = array_merge(
+				array(
+					'type' => $id,
+				),
+				$supported_services[ $id ]
+			);
+			$sharing_link = '<amp-social-share';
+			foreach ( $args as $key => $value ) {
+				$sharing_link .= sprintf( ' %s="%s"', sanitize_key( $key ), esc_attr( $value ) );
+			}
+			$sharing_link .= '></amp-social-share>';
+			$sharing_links[] = $sharing_link;
+		}
+		return preg_replace( '#(?<=<div class="sd-content">).+?(?=</div>)#s', implode( '', $sharing_links ), $markup );
+	}
+}
+
+add_action( 'init', array( 'Jetpack_AMP_Support', 'init' ), 1 );
+
+add_action( 'admin_init', array( 'Jetpack_AMP_Support', 'admin_init' ), 1 );
+
+// this is necessary since for better or worse Jetpack modules and widget files are loaded during plugins_loaded, which means we must
+// take the opportunity to intercept initialisation before that point, either by adding explicit detection into the module,
+// or preventing it from loading in the first place (better for performance)
+add_action( 'plugins_loaded', array( 'Jetpack_AMP_Support', 'init_filter_jetpack_widgets' ), 1 );