1 files changed, 116 insertions, 0 deletions
diff --git a/plugins/jetpack/sync/class.jetpack-sync-module-network-options.php b/plugins/jetpack/sync/class.jetpack-sync-module-network-options.php
new file mode 100644
index 00000000..011e9bba
--- /dev/null
+++ b/plugins/jetpack/sync/class.jetpack-sync-module-network-options.php
@@ -0,0 +1,116 @@
+<?php
+
+class Jetpack_Sync_Module_Network_Options extends Jetpack_Sync_Module {
+	private $network_options_whitelist;
+
+	public function name() {
+		return 'network_options';
+	}
+
+	public function init_listeners( $callable ) {
+		if ( ! is_multisite() ) {
+			return;
+		}
+
+		// multi site network options
+		add_action( 'add_site_option', $callable, 10, 2 );
+		add_action( 'update_site_option', $callable, 10, 3 );
+		add_action( 'delete_site_option', $callable, 10, 1 );
+
+		$whitelist_network_option_handler = array( $this, 'whitelist_network_options' );
+		add_filter( 'jetpack_sync_before_enqueue_delete_site_option', $whitelist_network_option_handler );
+		add_filter( 'jetpack_sync_before_enqueue_add_site_option', $whitelist_network_option_handler );
+		add_filter( 'jetpack_sync_before_enqueue_update_site_option', $whitelist_network_option_handler );
+	}
+
+	public function init_full_sync_listeners( $callable ) {
+		add_action( 'jetpack_full_sync_network_options', $callable );
+	}
+
+	public function init_before_send() {
+		if ( ! is_multisite() ) {
+			return;
+		}
+
+		// full sync
+		add_filter(
+			'jetpack_sync_before_send_jetpack_full_sync_network_options',
+			array(
+				$this,
+				'expand_network_options',
+			)
+		);
+	}
+
+	public function set_defaults() {
+		$this->network_options_whitelist = Jetpack_Sync_Defaults::$default_network_options_whitelist;
+	}
+
+	function enqueue_full_sync_actions( $config, $max_items_to_enqueue, $state ) {
+		if ( ! is_multisite() ) {
+			return array( 0, true );
+		}
+
+		/**
+		 * Tells the client to sync all options to the server
+		 *
+		 * @since 4.2.0
+		 *
+		 * @param boolean Whether to expand options (should always be true)
+		 */
+		do_action( 'jetpack_full_sync_network_options', true );
+
+		// The number of actions enqueued, and next module state (true == done)
+		return array( 1, true );
+	}
+
+	function estimate_full_sync_actions( $config ) {
+		if ( ! is_multisite() ) {
+			return 0;
+		}
+
+		return 1;
+	}
+
+	function get_full_sync_actions() {
+		return array( 'jetpack_full_sync_network_options' );
+	}
+
+	function get_all_network_options() {
+		$options = array();
+		foreach ( $this->network_options_whitelist as $option ) {
+			$options[ $option ] = get_site_option( $option );
+		}
+
+		return $options;
+	}
+
+	function set_network_options_whitelist( $options ) {
+		$this->network_options_whitelist = $options;
+	}
+
+	function get_network_options_whitelist() {
+		return $this->network_options_whitelist;
+	}
+
+	// reject non-whitelisted network options
+	function whitelist_network_options( $args ) {
+		if ( ! $this->is_whitelisted_network_option( $args[0] ) ) {
+			return false;
+		}
+
+		return $args;
+	}
+
+	function is_whitelisted_network_option( $option ) {
+		return is_multisite() && in_array( $option, $this->network_options_whitelist );
+	}
+
+	public function expand_network_options( $args ) {
+		if ( $args[0] ) {
+			return $this->get_all_network_options();
+		}
+
+		return $args;
+	}
+}