Completed
Push — master-stable ( a82972...9baba8 )
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27:19 queued 17:47
created

Jetpack_Sync_Module_Callables::get_all_callables()   A

Complexity

Conditions 1
Paths 1

Size

Total Lines 11
Code Lines 8

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
cc 1
eloc 8
nc 1
nop 0
dl 0
loc 11
rs 9.4285
c 0
b 0
f 0
1
<?php
2
3
require_once dirname( __FILE__ ) . '/class.jetpack-sync-functions.php';
4
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class Jetpack_Sync_Module_Callables extends Jetpack_Sync_Module {
6
	const CALLABLES_CHECKSUM_OPTION_NAME = 'jetpack_callables_sync_checksum';
7
	const CALLABLES_AWAIT_TRANSIENT_NAME = 'jetpack_sync_callables_await';
8
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	private $callable_whitelist;
10
11
	public function name() {
12
		return 'functions';
13
	}
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	public function set_defaults() {
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		if ( is_multisite() ) {
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			$this->callable_whitelist = array_merge( Jetpack_Sync_Defaults::get_callable_whitelist(), Jetpack_Sync_Defaults::get_multisite_callable_whitelist() );
18
		} else {
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			$this->callable_whitelist = Jetpack_Sync_Defaults::get_callable_whitelist();
20
		}
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	}
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	public function init_listeners( $callable ) {
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		add_action( 'jetpack_sync_callable', $callable, 10, 2 );
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		add_action( 'admin_init', array( $this, 'set_plugin_action_links' ), 9999 ); // Should happen very late
26
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		// For some options, we should always send the change right away!
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		$always_send_updates_to_these_options = array(
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			'jetpack_active_modules',
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			'home',
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			'siteurl',
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			'jetpack_sync_error_idc'
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		);
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		foreach( $always_send_updates_to_these_options as $option ) {
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			add_action( "update_option_{$option}", array( $this, 'unlock_sync_callable' ) );
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		}
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		// Provide a hook so that hosts can send changes to certain callables right away.
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		// Especially useful when a host uses constants to change home and siteurl.
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		add_action( 'jetpack_sync_unlock_sync_callable', array( $this, 'unlock_sync_callable' ) );
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		// get_plugins and wp_version
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		// gets fired when new code gets installed, updates etc.
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		add_action( 'upgrader_process_complete', array( $this, 'unlock_plugin_action_link_and_callables' ) );
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		add_action( 'update_option_active_plugins', array( $this, 'unlock_plugin_action_link_and_callables' ) );
46
	}
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	public function init_full_sync_listeners( $callable ) {
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		add_action( 'jetpack_full_sync_callables', $callable );
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	}
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	public function init_before_send() {
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		add_action( 'jetpack_sync_before_send_queue_sync', array( $this, 'maybe_sync_callables' ) );
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		// full sync
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		add_filter( 'jetpack_sync_before_send_jetpack_full_sync_callables', array( $this, 'expand_callables' ) );
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	}
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	public function reset_data() {
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		delete_option( self::CALLABLES_CHECKSUM_OPTION_NAME );
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		delete_transient( self::CALLABLES_AWAIT_TRANSIENT_NAME );
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		$url_callables = array( 'home_url', 'site_url', 'main_network_site_url' );
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		foreach( $url_callables as $callable ) {
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			delete_option( Jetpack_Sync_Functions::HTTPS_CHECK_OPTION_PREFIX . $callable );
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		}
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	}
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	function set_callable_whitelist( $callables ) {
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		$this->callable_whitelist = $callables;
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	}
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	function get_callable_whitelist() {
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		return $this->callable_whitelist;
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	}
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	public function get_all_callables() {
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		// get_all_callables should run as the master user always.
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		$current_user_id = get_current_user_id();
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		wp_set_current_user( Jetpack_Options::get_option( 'master_user' ) );
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		$callables = array_combine(
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			array_keys( $this->get_callable_whitelist() ),
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			array_map( array( $this, 'get_callable' ), array_values( $this->get_callable_whitelist() ) )
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		);
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		wp_set_current_user( $current_user_id );
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		return $callables;
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	}
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	private function get_callable( $callable ) {
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		return call_user_func( $callable );
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	}
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	public function enqueue_full_sync_actions( $config, $max_items_to_enqueue, $state ) {
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		/**
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		 * Tells the client to sync all callables to the server
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		 *
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		 * @since 4.2.0
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		 *
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		 * @param boolean Whether to expand callables (should always be true)
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		 */
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		do_action( 'jetpack_full_sync_callables', true );
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		// The number of actions enqueued, and next module state (true == done)
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		return array( 1, true );
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	}
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	public function estimate_full_sync_actions( $config ) {
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		return 1;
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	}
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	public function get_full_sync_actions() {
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		return array( 'jetpack_full_sync_callables' );
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	}
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	public function unlock_sync_callable() {
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		delete_transient( self::CALLABLES_AWAIT_TRANSIENT_NAME );
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	}
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	public function unlock_plugin_action_link_and_callables() {
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		delete_transient( self::CALLABLES_AWAIT_TRANSIENT_NAME );
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		delete_transient( 'jetpack_plugin_api_action_links_refresh' );
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	}
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	public function set_plugin_action_links() {
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		if (
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			! class_exists( 'DOMDocument' ) ||
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			! function_exists ( 'libxml_use_internal_errors' ) ||
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			! function_exists ( 'mb_convert_encoding' )
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		) {
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			return;
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		}
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		// Is the transient lock in place?
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		$plugins_lock = get_transient( 'jetpack_plugin_api_action_links_refresh', false );
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		if ( ! empty( $plugins_lock ) ) {
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			return;
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		}
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		$plugins = array_keys( Jetpack_Sync_Functions::get_plugins() );
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		foreach ( $plugins as $plugin_file ) {
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			/** This filter is documented in src/wp-admin/includes/class-wp-plugins-list-table.php */
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			$action_links = apply_filters( 'plugin_action_links', array(), $plugin_file, null, 'all' );
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			/** This filter is documented in src/wp-admin/includes/class-wp-plugins-list-table.php */
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			$action_links = apply_filters( "plugin_action_links_{$plugin_file}", $action_links, $plugin_file, null, 'all' );
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			$formatted_action_links = null;
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			if ( ! empty( $action_links ) && count( $action_links ) > 0 ) {
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				$dom_doc = new DOMDocument;
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				foreach ( $action_links as $action_link ) {
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					// The @ is not enough to suppress errors when dealing with libxml,
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					// we have to tell it directly how we want to handle errors.
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					libxml_use_internal_errors( true );
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					$dom_doc->loadHTML( mb_convert_encoding( $action_link, 'HTML-ENTITIES', 'UTF-8' ) );
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					libxml_use_internal_errors( false );
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					$link_elements = $dom_doc->getElementsByTagName( 'a' );
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					if ( $link_elements->length == 0 ) {
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						continue;
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					}
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					$link_element = $link_elements->item( 0 );
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					if ( $link_element->hasAttribute( 'href' ) && $link_element->nodeValue ) {
0 ignored issues
show
Bug introduced by
The method hasAttribute() does not exist on DOMNode. Did you maybe mean hasAttributes()?

This check marks calls to methods that do not seem to exist on an object.

This is most likely the result of a method being renamed without all references to it being renamed likewise.

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161
						$link_url = trim( $link_element->getAttribute( 'href' ) );
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						// Add the full admin path to the url if the plugin did not provide it
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						$link_url_scheme = wp_parse_url( $link_url, PHP_URL_SCHEME );
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						if ( empty( $link_url_scheme ) ) {
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							$link_url = admin_url( $link_url );
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						}
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						$formatted_action_links[ $link_element->nodeValue ] = $link_url;
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					}
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				}
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			}
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			if ( $formatted_action_links ) {
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				$plugins_action_links[ $plugin_file ] = $formatted_action_links;
0 ignored issues
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Coding Style Comprehensibility introduced by
$plugins_action_links was never initialized. Although not strictly required by PHP, it is generally a good practice to add $plugins_action_links = array(); before regardless.

Adding an explicit array definition is generally preferable to implicit array definition as it guarantees a stable state of the code.

Let’s take a look at an example:

foreach ($collection as $item) {
    $myArray['foo'] = $item->getFoo();

    if ($item->hasBar()) {
        $myArray['bar'] = $item->getBar();
    }

    // do something with $myArray
}

As you can see in this example, the array $myArray is initialized the first time when the foreach loop is entered. You can also see that the value of the bar key is only written conditionally; thus, its value might result from a previous iteration.

This might or might not be intended. To make your intention clear, your code more readible and to avoid accidental bugs, we recommend to add an explicit initialization $myArray = array() either outside or inside the foreach loop.

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175
			}
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		}
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		// Cache things for a long time
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		set_transient( 'jetpack_plugin_api_action_links_refresh', time(), DAY_IN_SECONDS );
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		update_option( 'jetpack_plugin_api_action_links', $plugins_action_links );
0 ignored issues
show
Bug introduced by
The variable $plugins_action_links does not seem to be defined for all execution paths leading up to this point.

If you define a variable conditionally, it can happen that it is not defined for all execution paths.

Let’s take a look at an example:

function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}

In the above example, the variable $x is defined if you pass “foo” or “bar” as argument for $a. However, since the switch statement has no default case statement, if you pass any other value, the variable $x would be undefined.

Available Fixes

  1. Check for existence of the variable explicitly:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        if (isset($x)) { // Make sure it's always set.
            echo $x;
        }
    }
    
  2. Define a default value for the variable:

    function myFunction($a) {
        $x = ''; // Set a default which gets overridden for certain paths.
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        echo $x;
    }
    
  3. Add a value for the missing path:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
    
            // We add support for the missing case.
            default:
                $x = '';
                break;
        }
    
        echo $x;
    }
    
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180
	}
181
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	public function should_send_callable( $callable_checksums, $name, $checksum ) {
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		$idc_override_callables = array(
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			'main_network_site',
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			'home_url',
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			'site_url',
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		);
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		if ( in_array( $name, $idc_override_callables ) && Jetpack_Options::get_option( 'migrate_for_idc' ) ) {
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			return true;
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		}
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		return ! $this->still_valid_checksum( $callable_checksums, $name, $checksum );
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	}
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	public function maybe_sync_callables() {
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		if ( ! is_admin() || Jetpack_Sync_Settings::is_doing_cron() ) {
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			return;
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		}
199
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		if ( get_transient( self::CALLABLES_AWAIT_TRANSIENT_NAME ) ) {
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			return;
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		}
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		set_transient( self::CALLABLES_AWAIT_TRANSIENT_NAME, microtime( true ), Jetpack_Sync_Defaults::$default_sync_callables_wait_time );
0 ignored issues
show
Bug introduced by
The property default_sync_callables_wait_time cannot be accessed from this context as it is declared private in class Jetpack_Sync_Defaults.

This check looks for access to properties that are not accessible from the current context.

If you need to make a property accessible to another context you can either raise its visibility level or provide an accessible getter in the defining class.

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205
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		$callables = $this->get_all_callables();
207
208
		if ( empty( $callables ) ) {
209
			return;
210
		}
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		$callable_checksums = (array) Jetpack_Options::get_raw_option( self::CALLABLES_CHECKSUM_OPTION_NAME, array() );
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		// only send the callables that have changed
215
		foreach ( $callables as $name => $value ) {
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			$checksum = $this->get_check_sum( $value );
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			// explicitly not using Identical comparison as get_option returns a string
218
			if ( ! is_null( $value ) && $this->should_send_callable( $callable_checksums, $name, $checksum ) ) {
219
				/**
220
				 * Tells the client to sync a callable (aka function) to the server
221
				 *
222
				 * @since 4.2.0
223
				 *
224
				 * @param string The name of the callable
225
				 * @param mixed The value of the callable
226
				 */
227
				do_action( 'jetpack_sync_callable', $name, $value );
228
				$callable_checksums[ $name ] = $checksum;
229
			} else {
230
				$callable_checksums[ $name ] = $checksum;
231
			}
232
		}
233
		Jetpack_Options::update_raw_option( self::CALLABLES_CHECKSUM_OPTION_NAME, $callable_checksums );
234
	}
235
236
	public function expand_callables( $args ) {
237
		if ( $args[0] ) {
238
			$callables = $this->get_all_callables();
239
			$callables_checksums = array();
240
			foreach ( $callables as $name => $value ) {
241
				$callables_checksums[ $name ] = $this->get_check_sum( $value );
242
			}
243
			Jetpack_Options::update_raw_option( self::CALLABLES_CHECKSUM_OPTION_NAME, $callables_checksums );
244
			return $callables;
245
		}
246
247
		return $args;
248
	}
249
}
250