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wp-content/plugins/jetpack/extensions/blocks/blog-stats/blog-stats.php

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+<?php
+/**
+ * Blog Stats Block.
+ *
+ * @since 13.0
+ *
+ * @package automattic/jetpack
+ */
+
+namespace Automattic\Jetpack\Extensions\Blog_Stats;
+
+use Automattic\Jetpack\Blocks;
+use Automattic\Jetpack\Connection\Manager as Connection_Manager;
+use Automattic\Jetpack\Modules;
+use Automattic\Jetpack\Status;
+use Automattic\Jetpack\Status\Host;
+
+if ( ! defined( 'ABSPATH' ) ) {
+	exit( 0 );
+}
+
+/**
+ * Registers the block for use in Gutenberg.
+ * This is done via an action so that we can disable
+ * registration if we need to.
+ */
+function register_block() {
+	/*
+	 * The block is available even when the module is not active,
+	 * so we can display a nudge to activate the module instead of the block.
+	 * However, since non-admins cannot activate modules, we do not display the empty block for them.
+	 */
+	if ( ! ( new Modules() )->is_active( 'stats' ) && ! current_user_can( 'jetpack_activate_modules' ) ) {
+		return;
+	}
+
+	if (
+		( new Host() )->is_wpcom_simple()
+		|| (
+			( new Connection_Manager( 'jetpack' ) )->has_connected_owner()
+			&& ! ( new Status() )->is_offline_mode()
+		)
+	) {
+		Blocks::jetpack_register_block(
+			__DIR__,
+			array( 'render_callback' => __NAMESPACE__ . '\load_assets' )
+		);
+	}
+}
+add_action( 'init', __NAMESPACE__ . '\register_block' );
+
+/**
+ * Blog Stats block registration/dependency declaration.
+ *
+ * The render implementation lives in render.php and is only loaded when the
+ * block is actually rendered, keeping it out of the eager front-end path.
+ *
+ * @param array $attributes Array containing the Blog Stats block attributes.
+ *
+ * @return string
+ */
+function load_assets( $attributes ) {
+	require_once __DIR__ . '/render.php';
+	return render_implementation( $attributes );
+}

wp-content/plugins/jetpack/extensions/blocks/blog-stats/render.php

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+<?php
+/**
+ * Blog Stats block render implementation.
+ *
+ * Loaded lazily from blog-stats.php only when the block is rendered, to keep
+ * the render body out of the eager front-end PHP/opcache footprint.
+ *
+ * @package automattic/jetpack
+ */
+
+namespace Automattic\Jetpack\Extensions\Blog_Stats;
+
+use Automattic\Jetpack\Modules;
+use Automattic\Jetpack\Status\Request;
+use Jetpack_Blog_Stats_Helper;
+use Jetpack_Gutenberg;
+
+if ( ! defined( 'ABSPATH' ) ) {
+	exit( 0 );
+}
+
+if ( ! class_exists( 'Jetpack_Blog_Stats_Helper' ) ) {
+	require_once JETPACK__PLUGIN_DIR . '/_inc/lib/class-jetpack-blog-stats-helper.php';
+}
+
+/**
+ * Dynamic rendering of the block.
+ *
+ * @param array $attributes Array containing the Blog Stats block attributes.
+ *
+ * @return string
+ */
+function render_implementation( $attributes ) {
+	Jetpack_Gutenberg::load_assets_as_required( __DIR__ );
+
+	// For outside the front-end, such as within emails or the API.
+	if ( ! Request::is_frontend() ) {
+		return;
+	}
+
+	// For when Stats has been disabled subsequent to inserting the block.
+	if ( ! ( new Modules() )->is_active( 'stats' ) ) {
+		if ( current_user_can( 'edit_theme_options' ) ) {
+			return sprintf(
+				'<p>%s</p>',
+				wp_kses(
+					sprintf(
+						/* translators: placeholder %s is a link to enable Jetpack Stats.. */
+						__( 'Please <a href="%s">enable Jetpack Stats</a> to use this block.', 'jetpack' ),
+						esc_url( admin_url( 'admin.php?page=jetpack_modules&module_tag=Jetpack%20Stats' ) )
+					),
+					array( 'a' => array( 'href' => array() ) )
+				)
+			);
+		}
+
+		return;
+	}
+
+	// For when there's no post ID - eg. search pages.
+	if ( $attributes['statsOption'] === 'post' && ! get_the_ID() ) {
+		if ( current_user_can( 'edit_theme_options' ) ) {
+			return sprintf(
+				'<p>%s</p>',
+				esc_html( __( 'There are no stats to display for this post.', 'jetpack' ) )
+			);
+		}
+
+		return;
+	}
+
+	$stats = Jetpack_Blog_Stats_Helper::get_stats( $attributes );
+
+	$fallback_label = $attributes['statsData'] === 'visitors' ? esc_html(
+		/* Translators: Number of visitors */
+		_n( 'visitor', 'visitors', $stats, 'jetpack' )
+	) : esc_html(
+		/* Translators: Number of views */
+		_n( 'hit', 'hits', $stats, 'jetpack' )
+	);
+
+	$label = empty( $attributes['label'] ) ? $fallback_label : $attributes['label'];
+
+	$wrapper_attributes = \WP_Block_Supports::get_instance()->apply_block_supports();
+
+	return sprintf(
+		'<div class="jetpack-blog-stats%s%s"%s><p>%s %s</p></div>',
+		! empty( $attributes['className'] ) ? ' ' . esc_attr( $attributes['className'] ) : '',
+		! empty( $wrapper_attributes['class'] ) ? ' ' . esc_attr( $wrapper_attributes['class'] ) : '',
+		! empty( $wrapper_attributes['style'] ) ? ' style="' . esc_attr( $wrapper_attributes['style'] ) . '"' : '',
+		esc_html( number_format_i18n( $stats ) ),
+		wp_kses_post( $label )
+	);
+}