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wp-content/plugins/jetpack-boost/app/lib/class-site-health.php

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+<?php
+
+namespace Automattic\Jetpack_Boost\Lib;
+
+/**
+ * Site_Health.
+ *
+ * Displays performance issues in WordPress site health page.
+ */
+class Site_Health {
+
+	/**
+	 * Initialize hooks
+	 *
+	 * @access public
+	 * @return void
+	 */
+	public static function init() {
+		if ( ! has_filter( 'site_status_tests', array( __CLASS__, 'add_check' ) ) ) {
+			add_filter( 'site_status_tests', array( __CLASS__, 'add_check' ), 99 );
+		}
+	}
+
+	/**
+	 * Add site-health page tests.
+	 *
+	 * @param array $checks Core checks.
+	 *
+	 * @access public
+	 * @return array
+	 */
+	public static function add_check( $checks ) {
+		$checks['direct']['jetpack_boost_checks'] = array(
+			'label' => __( 'Jetpack Boost checks', 'jetpack-boost' ),
+			'test'  => array( __CLASS__, 'do_checks' ),
+		);
+
+		return $checks;
+	}
+
+	/**
+	 * Do site-health page checks
+	 *
+	 * @access public
+	 * @return array
+	 */
+	public static function do_checks() {
+		$health       = new Boost_Health();
+		$total_issues = $health->get_total_issues();
+		$issues       = $health->get_all_issues();
+
+		/**
+		 * Default, no issues found
+		 */
+		$result = array(
+			'label'       => __( 'No issues found', 'jetpack-boost' ),
+			'status'      => 'good',
+			'badge'       => array(
+				'label' => __( 'Performance', 'jetpack-boost' ),
+				'color' => 'gray',
+			),
+			'description' => sprintf(
+				'<p>%s</p>',
+				__( 'Jetpack Boost did not find any known performance issues with your site.', 'jetpack-boost' )
+			),
+			'actions'     => '',
+			'test'        => 'jetpack_boost_checks',
+		);
+
+		/**
+		 * If issues found.
+		 */
+		if ( $total_issues ) {
+			$result['status'] = 'critical';
+			/* translators: $d is the number of performance issues found. */
+			$result['label']       = sprintf( _n( 'Your site is affected by %d performance issue', 'Your site is affected by %d performance issues', $total_issues, 'jetpack-boost' ), $total_issues );
+			$result['description'] = __( 'Jetpack Boost detected the following performance issues with your site:', 'jetpack-boost' );
+
+			foreach ( $issues as $issue ) {
+				$result['description'] .= '<p>';
+				$result['description'] .= "<span class='dashicons dashicons-warning' style='color: crimson;'></span> &nbsp";
+				$result['description'] .= wp_kses( $issue, array( 'a' => array( 'href' => array() ) ) ); // Only allow a href HTML tags.
+				$result['description'] .= '</p>';
+			}
+			$result['description'] .= '<p>';
+			$result['description'] .= sprintf(
+				wp_kses(
+					/* translators: Link to Jetpack Boost. */
+					__( 'Visit <a href="%s">Boost settings page</a> for more information.', 'jetpack-boost' ),
+					array(
+						'a' => array( 'href' => array() ),
+					)
+				),
+				esc_url( admin_url( 'admin.php?page=jetpack-boost' ) )
+			);
+			$result['description'] .= '</p>';
+		}
+
+		return $result;
+	}
+}