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<?php
require_once dirname( __FILE__ ) . '/class.jetpack-sync-functions.php';
class Jetpack_Sync_Module_Callables extends Jetpack_Sync_Module {
const CALLABLES_CHECKSUM_OPTION_NAME = 'jetpack_callables_sync_checksum';
const CALLABLES_AWAIT_TRANSIENT_NAME = 'jetpack_sync_callables_await';
private $callable_whitelist;
public function name() {
return 'functions';
}
public function set_defaults() {
if ( is_multisite() ) {
$this->callable_whitelist = array_merge( Jetpack_Sync_Defaults::get_callable_whitelist(), Jetpack_Sync_Defaults::get_multisite_callable_whitelist() );
} else {
$this->callable_whitelist = Jetpack_Sync_Defaults::get_callable_whitelist();
}
}
public function init_listeners( $callable ) {
add_action( 'jetpack_sync_callable', $callable, 10, 2 );
add_action( 'admin_init', array( $this, 'set_plugin_action_links' ), 9999 ); // Should happen very late
// For some options, we should always send the change right away!
$always_send_updates_to_these_options = array(
'jetpack_active_modules',
'home',
'siteurl',
'jetpack_sync_error_idc',
);
foreach( $always_send_updates_to_these_options as $option ) {
add_action( "update_option_{$option}", array( $this, 'unlock_sync_callable' ) );
}
// Provide a hook so that hosts can send changes to certain callables right away.
// Especially useful when a host uses constants to change home and siteurl.
add_action( 'jetpack_sync_unlock_sync_callable', array( $this, 'unlock_sync_callable' ) );
// get_plugins and wp_version
// gets fired when new code gets installed, updates etc.
add_action( 'upgrader_process_complete', array( $this, 'unlock_plugin_action_link_and_callables' ) );
add_action( 'update_option_active_plugins', array( $this, 'unlock_plugin_action_link_and_callables' ) );
}
public function init_full_sync_listeners( $callable ) {
add_action( 'jetpack_full_sync_callables', $callable );
}
public function init_before_send() {
add_action( 'jetpack_sync_before_send_queue_sync', array( $this, 'maybe_sync_callables' ) );
// full sync
add_filter( 'jetpack_sync_before_send_jetpack_full_sync_callables', array( $this, 'expand_callables' ) );
}
public function reset_data() {
delete_option( self::CALLABLES_CHECKSUM_OPTION_NAME );
delete_transient( self::CALLABLES_AWAIT_TRANSIENT_NAME );
$url_callables = array( 'home_url', 'site_url', 'main_network_site_url' );
foreach( $url_callables as $callable ) {
delete_option( Jetpack_Sync_Functions::HTTPS_CHECK_OPTION_PREFIX . $callable );
}
}
function set_callable_whitelist( $callables ) {
$this->callable_whitelist = $callables;
}
function get_callable_whitelist() {
return $this->callable_whitelist;
}
public function get_all_callables() {
// get_all_callables should run as the master user always.
$current_user_id = get_current_user_id();
wp_set_current_user( Jetpack_Options::get_option( 'master_user' ) );
$callables = array_combine(
array_keys( $this->get_callable_whitelist() ),
array_map( array( $this, 'get_callable' ), array_values( $this->get_callable_whitelist() ) )
);
wp_set_current_user( $current_user_id );
return $callables;
}
private function get_callable( $callable ) {
return call_user_func( $callable );
}
public function enqueue_full_sync_actions( $config, $max_items_to_enqueue, $state ) {
/**
* Tells the client to sync all callables to the server
*
* @since 4.2.0
*
* @param boolean Whether to expand callables (should always be true)
*/
do_action( 'jetpack_full_sync_callables', true );
// The number of actions enqueued, and next module state (true == done)
return array( 1, true );
}
public function estimate_full_sync_actions( $config ) {
return 1;
}
public function get_full_sync_actions() {
return array( 'jetpack_full_sync_callables' );
}
public function unlock_sync_callable() {
delete_transient( self::CALLABLES_AWAIT_TRANSIENT_NAME );
}
public function unlock_plugin_action_link_and_callables() {
delete_transient( self::CALLABLES_AWAIT_TRANSIENT_NAME );
delete_transient( 'jetpack_plugin_api_action_links_refresh' );
add_filter( 'jetpack_check_and_send_callables', '__return_true' );
}
public function set_plugin_action_links() {
if (
! class_exists( 'DOMDocument' ) ||
! function_exists ( 'libxml_use_internal_errors' ) ||
! function_exists ( 'mb_convert_encoding' )
) {
return;
}
$plugins_action_links = array();
// Is the transient lock in place?
$plugins_lock = get_transient( 'jetpack_plugin_api_action_links_refresh', false );
if ( ! empty( $plugins_lock ) ) {
return;
}
$plugins = array_keys( Jetpack_Sync_Functions::get_plugins() );
foreach ( $plugins as $plugin_file ) {
/**
* Plugins often like to unset things but things break if they are not able to.
*/
$action_links = array(
'deactivate' => '',
'activate' => '',
'details' => '',
'delete' => '',
'edit' => ''
);
/** This filter is documented in src/wp-admin/includes/class-wp-plugins-list-table.php */
$action_links = apply_filters( 'plugin_action_links', $action_links, $plugin_file, null, 'all' );
/** This filter is documented in src/wp-admin/includes/class-wp-plugins-list-table.php */
$action_links = apply_filters( "plugin_action_links_{$plugin_file}", $action_links, $plugin_file, null, 'all' );
$action_links = array_filter( $action_links );
$formatted_action_links = null;
if ( ! empty( $action_links ) && count( $action_links ) > 0 ) {
$dom_doc = new DOMDocument;
foreach ( $action_links as $action_link ) {
// The @ is not enough to suppress errors when dealing with libxml,
// we have to tell it directly how we want to handle errors.
libxml_use_internal_errors( true );
$dom_doc->loadHTML( mb_convert_encoding( $action_link, 'HTML-ENTITIES', 'UTF-8' ) );
libxml_use_internal_errors( false );
$link_elements = $dom_doc->getElementsByTagName( 'a' );
if ( $link_elements->length == 0 ) {
continue;
}
$link_element = $link_elements->item( 0 );
if ( $link_element->hasAttribute( 'href' ) && $link_element->nodeValue ) {
$link_url = trim( $link_element->getAttribute( 'href' ) );
// Add the full admin path to the url if the plugin did not provide it
$link_url_scheme = wp_parse_url( $link_url, PHP_URL_SCHEME );
if ( empty( $link_url_scheme ) ) {
$link_url = admin_url( $link_url );
}
$formatted_action_links[ $link_element->nodeValue ] = $link_url;
}
}
}
if ( $formatted_action_links ) {
$plugins_action_links[ $plugin_file ] = $formatted_action_links;
}
}
// Cache things for a long time
set_transient( 'jetpack_plugin_api_action_links_refresh', time(), DAY_IN_SECONDS );
update_option( 'jetpack_plugin_api_action_links', $plugins_action_links );
}
public function should_send_callable( $callable_checksums, $name, $checksum ) {
$idc_override_callables = array(
'main_network_site',
'home_url',
'site_url',
);
if ( in_array( $name, $idc_override_callables ) && Jetpack_Options::get_option( 'migrate_for_idc' ) ) {
return true;
}
return ! $this->still_valid_checksum( $callable_checksums, $name, $checksum );
}
public function maybe_sync_callables() {
if ( ! apply_filters( 'jetpack_check_and_send_callables', false ) ) {
if ( ! is_admin() || Jetpack_Sync_Settings::is_doing_cron() ) {
return;
}
if ( get_transient( self::CALLABLES_AWAIT_TRANSIENT_NAME ) ) {
return;
}
}
set_transient( self::CALLABLES_AWAIT_TRANSIENT_NAME, microtime( true ), Jetpack_Sync_Defaults::$default_sync_callables_wait_time );
$callables = $this->get_all_callables();
if ( empty( $callables ) ) {
return;
}
$callable_checksums = (array) Jetpack_Options::get_raw_option( self::CALLABLES_CHECKSUM_OPTION_NAME, array() );
// only send the callables that have changed
foreach ( $callables as $name => $value ) {
$checksum = $this->get_check_sum( $value );
// explicitly not using Identical comparison as get_option returns a string
if ( ! is_null( $value ) && $this->should_send_callable( $callable_checksums, $name, $checksum ) ) {
/**
* Tells the client to sync a callable (aka function) to the server
*
* @since 4.2.0
*
* @param string The name of the callable
* @param mixed The value of the callable
*/
do_action( 'jetpack_sync_callable', $name, $value );
$callable_checksums[ $name ] = $checksum;
} else {
$callable_checksums[ $name ] = $checksum;
}
}
Jetpack_Options::update_raw_option( self::CALLABLES_CHECKSUM_OPTION_NAME, $callable_checksums );
}
public function expand_callables( $args ) {
if ( $args[0] ) {
$callables = $this->get_all_callables();
$callables_checksums = array();
foreach ( $callables as $name => $value ) {
$callables_checksums[ $name ] = $this->get_check_sum( $value );
}
Jetpack_Options::update_raw_option( self::CALLABLES_CHECKSUM_OPTION_NAME, $callables_checksums );
return $callables;
}
return $args;
}
}
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