Apply RocketCDN CNAME change

inc/Engine/CDN/RocketCDN/DataManagerSubscriber.php

@@ -1,6 +1,8 @@
 <?php
 namespace WP_Rocket\Engine\CDN\RocketCDN;
 
+use WP_Rocket\Admin\Options;
+use WP_Rocket\Admin\Options_Data;
 use WP_Rocket\Event_Management\Subscriber_Interface;
 
 /**
@@ -25,15 +27,33 @@ class DataManagerSubscriber implements Subscriber_Interface {
 	 */
 	private $cdn_options;
 
+	/**
+	 * WP Options API instance
+	 *
+	 * @var Options
+	 */
+	private $options_api;
+
+	/**
+	 * WP Rocket Options instance
+	 *
+	 * @var Options_Data
+	 */
+	private $options;
+
 	/**
 	 * Constructor
 	 *
 	 * @param APIClient         $api_client  RocketCDN API Client instance.
 	 * @param CDNOptionsManager $cdn_options CDNOptionsManager instance.
+	 * @param Options_Data      $options Options instance.
+	 * @param Options           $options_api Options API instance.
 	 */
-	public function __construct( APIClient $api_client, CDNOptionsManager $cdn_options ) {
+	public function __construct( APIClient $api_client, CDNOptionsManager $cdn_options, Options_Data $options, Options $options_api ) {
 		$this->api_client  = $api_client;
 		$this->cdn_options = $cdn_options;
+		$this->options     = $options;
+		$this->options_api = $options_api;
 	}
 
 	/**
@@ -48,6 +68,7 @@ public static function get_subscribed_events() {
 			'wp_ajax_rocketcdn_process_status'       => 'get_process_status',
 			'wp_ajax_rocketcdn_validate_token_cname' => 'validate_token_cname',
 			self::CRON_EVENT                         => 'maybe_disable_cdn',
+			'wp_rocket_upgrade'                      => [ 'refresh_cdn_cname', 10, 2 ],
 		];
 	}
 
@@ -315,4 +336,35 @@ private function schedule_subscription_check( $subscription ) {
 			wp_schedule_single_event( $timestamp, self::CRON_EVENT );
 		}
 	}
+
+	/**
+	 * Upgrade callback.
+	 *
+	 * @param string $new_version Plugin new version.
+	 * @param string $old_version Plugin old version.
+	 * @return void
+	 */
+	public function refresh_cdn_cname( $new_version, $old_version ): void {
+		if ( version_compare( $old_version, '3.17.3', '>=' ) ) {
+			return;
+		}
+
+		delete_transient( 'rocketcdn_status' );
+
+		$new_subscription_data = $this->api_client->get_subscription_data();
+		if ( ! $new_subscription_data['is_active'] || empty( $new_subscription_data['cdn_url'] ) ) {
+			return;
+		}
+
+		$cdn_cnames = $this->options->get( 'cdn_cnames', [] );
+		if ( empty( $cdn_cnames[0] ) || $cdn_cnames[0] === $new_subscription_data['cdn_url'] ) {
+			return;
+		}
+
+		$this->options_api->set( 'rocketcdn_old_url', $cdn_cnames[0] );
+		$cdn_cnames[0] = $new_subscription_data['cdn_url'];
+		$this->options->set( 'cdn_cnames', $cdn_cnames );
+
+		$this->options_api->set( 'settings', $this->options->get_options() );
+	}
 }

inc/Engine/CDN/RocketCDN/NoticesSubscriber.php

@@ -47,6 +47,7 @@ public static function get_subscribed_events() {
 			'admin_notices'                    => [
 				[ 'promote_rocketcdn_notice' ],
 				[ 'purge_cache_notice' ],
+				[ 'change_cname_notice' ],
 			],
 			'rocket_before_cdn_sections'       => 'display_rocketcdn_cta',
 			'wp_ajax_toggle_rocketcdn_cta'     => 'toggle_cta',
@@ -353,4 +354,60 @@ public function purge_cache_notice() {
 	private function is_white_label_account() {
 		return (bool) rocket_get_constant( 'WP_ROCKET_WHITE_LABEL_ACCOUNT' );
 	}
+
+	/**
+	 * Change CName admin notice contents.
+	 *
+	 * @return void
+	 */
+	public function change_cname_notice() {
+		if ( ! current_user_can( 'rocket_manage_options' ) ) {
+			return;
+		}
+
+		if ( 'settings_page_wprocket' !== get_current_screen()->id ) {
+			return;
+		}
+
+		$boxes = get_user_meta( get_current_user_id(), 'rocket_boxes', true );
+
+		if ( in_array( 'rocketcdn_change_cname', (array) $boxes, true ) ) {
+			return;
+		}
+
+		$old_cname = get_option( 'wp_rocket_rocketcdn_old_url' );
+		if ( empty( $old_cname ) ) {
+			return;
+		}
+
+		$new_subscription = $this->api_client->get_subscription_data();
+		if ( empty( $new_subscription['cdn_url'] ) || $old_cname === $new_subscription['cdn_url'] ) {
+			return;
+		}
+
+		$support_url = rocket_get_external_url(
+			'support',
+			[
+				'utm_source' => 'wp_plugin',
+				'utm_medium' => 'wp_rocket',
+			]
+		);
+
+		$message_lines = [
+			// translators: %1$s = Old CName, %2$s = New CName.
+			sprintf( esc_html__( 'We\'ve updated your RocketCDN CNAME from %1$s to %2$s.', 'rocket' ), $old_cname, $new_subscription['cdn_url'] ),
+			// translators: %1$s = New CName.
+			sprintf( esc_html__( 'The change is already applied to the plugin settings. If you were using the CNAME in your code, make sure to update it to: %1$s.', 'rocket' ), $new_subscription['cdn_url'] ),
+		];
+
+		rocket_notice_html(
+			[
+				'status'         => 'info',
+				'message'        => implode( '<br>', $message_lines ),
+				'dismiss_button' => 'rocketcdn_change_cname',
+				'id'             => 'rocketcdn_change_cname_notice',
+				'action'         => sprintf( '<a href="%1$s" target="_blank" rel="noopener" class="wpr-button" id="rocketcdn-change-cname-button">%2$s</a>', $support_url, esc_html__( 'contact support', 'rocket' ) ),
+			]
+		);
+	}
 }

inc/Engine/CDN/RocketCDN/ServiceProvider.php

@@ -48,7 +48,9 @@ public function register(): void {
 		// RocketCDN Data manager subscriber.
 		$this->getContainer()->addShared( 'rocketcdn_data_manager_subscriber', DataManagerSubscriber::class )
 			->addArgument( $this->getContainer()->get( 'rocketcdn_api_client' ) )
-			->addArgument( $this->getContainer()->get( 'rocketcdn_options_manager' ) );
+			->addArgument( $this->getContainer()->get( 'rocketcdn_options_manager' ) )
+			->addArgument( $this->getContainer()->get( 'options' ) )
+			->addArgument( $this->getContainer()->get( 'options_api' ) );
 		// RocketCDN REST API Subscriber.
 		$this->getContainer()->addShared( 'rocketcdn_rest_subscriber', RESTSubscriber::class )
 			->addArgument( $this->getContainer()->get( 'rocketcdn_options_manager' ) )

inc/Engine/WPRocketUninstall.php

@@ -40,6 +40,7 @@ class WPRocketUninstall {
 		'wp_rocket_no_licence',
 		'wp_rocket_last_option_hash',
 		'wp_rocket_debug',
+		'wp_rocket_rocketcdn_old_url',
 	];
 
 	/**