Jetpack_Sync_Actions::init_sync_cron_jobs() - Code Metrics - Inspection of "Shorter send timeout when sending in shutdown hook" - Automattic/jetpack - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — add/shorter-sync-request-timeo... ( 00cecc )

unknown

created 2016-11-17 22:18 UTC

Jetpack_Sync_Actions::init_sync_cron_jobs() B

↳ Parent: Jetpack_Sync_Actions

Complexity

Conditions	1
Paths	1

Size

Total Lines	30
Code Lines	9

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	1
eloc	9
nc	1
nop	0
dl	0
loc	30
rs	8.8571
c	0
b	0
f	0

<?php

/**
 * The role of this class is to hook the Sync subsystem into WordPress - when to listen for actions,
 * when to send, when to perform a full sync, etc.
 *
 * It also binds the action to send data to WPCOM to Jetpack's XMLRPC client object.
 */
class Jetpack_Sync_Actions {
	static $sender = null;
class A {
    var $property;
}
	static $listener = null;
class A {
    var $property;
}
	const DEFAULT_SYNC_CRON_INTERVAL = '1min';

	static function init() {

		// everything below this point should only happen if we're a valid sync site
		if ( ! self::sync_allowed() ) {
			return;
		}

		if ( self::sync_via_cron_allowed() ) {
			self::init_sync_cron_jobs();
		}

		// On jetpack authorization, schedule a full sync
		add_action( 'jetpack_client_authorized', array( __CLASS__, 'do_full_sync' ), 10, 0 );

		// When importing via cron, do not sync
		add_action( 'wp_cron_importer_hook', array( __CLASS__, 'set_is_importing_true' ), 1 );

		// Sync connected user role changes to .com
		require_once dirname( __FILE__ ) . '/class.jetpack-sync-users.php';

		// publicize filter to prevent publicizing blacklisted post types
		add_filter( 'publicize_should_publicize_published_post', array( __CLASS__, 'prevent_publicize_blacklisted_posts' ), 10, 2 );

		/**
		 * Fires on every request before default loading sync listener code.
		 * Return false to not load sync listener code that monitors common
		 * WP actions to be serialized.
		 *
		 * By default this returns true for cron jobs, non-GET-requests, or requests where the
		 * user is logged-in.
		 *
		 * @since 4.2.0
		 *
		 * @param bool should we load sync listener code for this request
		 */
		if ( apply_filters( 'jetpack_sync_listener_should_load', true ) ) {
			self::initialize_listener();
		}

		/**
		 * Fires on every request before default loading sync sender code.
		 * Return false to not load sync sender code that serializes pending
		 * data and sends it to WPCOM for processing.
		 *
		 * By default this returns true for cron jobs, POST requests, admin requests, or requests
		 * by users who can manage_options.
		 *
		 * @since 4.2.0
		 *
		 * @param bool should we load sync sender code for this request
		 */
		if ( apply_filters( 'jetpack_sync_sender_should_load',
			(
				( isset( $_SERVER["REQUEST_METHOD"] ) && 'POST' === $_SERVER['REQUEST_METHOD'] )
				||
				current_user_can( 'manage_options' )
				||
				is_admin()
				||
				defined( 'PHPUNIT_JETPACK_TESTSUITE' )
			)
		) ) {
			self::initialize_sender();
			add_action( 'shutdown', array( self::$sender, 'do_sync' ) );
			add_action( 'shutdown', array( self::$sender, 'do_full_sync' ) );
		}

	}

	static function sync_allowed() {
		require_once dirname( __FILE__ ) . '/class.jetpack-sync-settings.php';
		return ( ! Jetpack_Sync_Settings::get_setting( 'disable' ) && Jetpack::is_active() && ! ( Jetpack::is_development_mode() || Jetpack::is_staging_site() ) )
			   || defined( 'PHPUNIT_JETPACK_TESTSUITE' );
	}

	static function sync_via_cron_allowed() {
		require_once dirname( __FILE__ ) . '/class.jetpack-sync-settings.php';
		return ( Jetpack_Sync_Settings::get_setting( 'sync_via_cron' ) );
	}

	static function prevent_publicize_blacklisted_posts( $should_publicize, $post ) {
		require_once dirname( __FILE__ ) . '/class.jetpack-sync-settings.php';
		if ( in_array( $post->post_type, Jetpack_Sync_Settings::get_setting( 'post_types_blacklist' ) ) ) {
			return false;
		}

		return $should_publicize;
	}

	static function set_is_importing_true() {
		require_once dirname( __FILE__ ) . '/class.jetpack-sync-settings.php';
		Jetpack_Sync_Settings::set_importing( true );
	}

	static function send_data( $data, $codec_name, $sent_timestamp, $queue_id ) {
		Jetpack::load_xml_rpc_client();

		$query_args = array(
			'sync'      => '1',             // add an extra parameter to the URL so we can tell it's a sync action
			'codec'     => $codec_name,     // send the name of the codec used to encode the data
			'timestamp' => $sent_timestamp, // send current server time so we can compensate for clock differences
			'queue'     => $queue_id,       // sync or full_sync
			'home'      => get_home_url(),  // Send home url option to check for Identity Crisis server-side
			'siteurl'   => get_site_url(),  // Send siteurl option to check for Identity Crisis server-side
		);

		// Has the site opted in to IDC mitigation?
		if ( Jetpack::sync_idc_optin() ) {
			$query_args['idc'] = true;
		}

		if ( Jetpack_Options::get_option( 'migrate_for_idc', false ) ) {
			$query_args['migrate_for_idc'] = true;
		}

		$query_args['timeout'] = Jetpack_Sync_Settings::is_doing_cron() ? 30 : 15;

		$url = add_query_arg( $query_args, Jetpack::xmlrpc_api_url() );

		$rpc = new Jetpack_IXR_Client( array(
			'url'     => $url,
			'user_id' => JETPACK_MASTER_USER,
			'timeout' => $query_args['timeout'],
		) );

		$result = $rpc->query( 'jetpack.syncActions', $data );

		if ( ! $result ) {
			return $rpc->get_jetpack_error();
		}

		$response = $rpc->getResponse();

		// Check if WordPress.com IDC mitigation blocked the sync request
		if ( is_array( $response ) && isset( $response['error_code'] ) ) {
			$error_code = $response['error_code'];
			$allowed_idc_error_codes = array(
				'jetpack_url_mismatch',
				'jetpack_home_url_mismatch',
				'jetpack_site_url_mismatch'
			);

			if ( in_array( $error_code, $allowed_idc_error_codes ) ) {
				Jetpack_Options::update_option(
					'sync_error_idc',
					Jetpack::get_sync_error_idc_option( $response )
				);
			}

			return new WP_Error(
				'sync_error_idc',
				esc_html__( 'Sync has been blocked from WordPress.com because it would cause an identity crisis', 'jetpack' )
			);
		}

		return $response;
	}

	static function do_initial_sync( $new_version = null, $old_version = null ) {
		$initial_sync_config = array(
			'options' => true,
			'network_options' => true,
			'functions' => true,
			'constants' => true,
		);

		if ( $old_version && ( version_compare( $old_version, '4.2', '<' ) ) ) {
			$initial_sync_config['users'] = 'initial';
		}

		self::do_full_sync( $initial_sync_config );
	}

	static function do_full_sync( $modules = null ) {
		if ( ! self::sync_allowed() ) {
			return false;
		}

		self::initialize_listener();
		Jetpack_Sync_Modules::get_module( 'full-sync' )->start( $modules );

		return true;
	}

	static function minute_cron_schedule( $schedules ) {
		if( ! isset( $schedules['1min'] ) ) {
			$schedules['1min'] = array(
				'interval' => 60,
				'display' => esc_html__( 'Every minute', 'jetpack' )
			);
		}
		return $schedules;
	}

	// try to send actions until we run out of things to send,
	// or have to wait more than 15s before sending again,
	// or we hit a lock or some other sending issue
	static function do_cron_sync() {
		if ( ! self::sync_allowed() ) {
			return;
		}

		self::initialize_sender();

		do {
			$next_sync_time = self::$sender->get_next_sync_time( 'sync' );

			if ( $next_sync_time ) {
				$delay = $next_sync_time - time() + 1;
				if ( $delay > 15 ) {
					break;
				} elseif ( $delay > 0 ) {
					sleep( $delay );
				}
			}

			$result = self::$sender->do_sync();
		} while ( $result );
	}

	static function do_cron_full_sync() {
		if ( ! self::sync_allowed() ) {
			return;
		}

		self::initialize_sender();

		do {
			$next_sync_time = self::$sender->get_next_sync_time( 'full_sync' );

			if ( $next_sync_time ) {
				$delay = $next_sync_time - time() + 1;
				if ( $delay > 15 ) {
					break;
				} elseif ( $delay > 0 ) {
					sleep( $delay );
				}
			}

			$result = self::$sender->do_full_sync();
		} while ( $result );
	}

	static function initialize_listener() {
		require_once dirname( __FILE__ ) . '/class.jetpack-sync-listener.php';
		self::$listener = Jetpack_Sync_Listener::get_instance();
	}

	static function initialize_sender() {
		require_once dirname( __FILE__ ) . '/class.jetpack-sync-sender.php';
		self::$sender = Jetpack_Sync_Sender::get_instance();

		// bind the sending process
		add_filter( 'jetpack_sync_send_data', array( __CLASS__, 'send_data' ), 10, 4 );
	}

	static function sanitize_filtered_sync_cron_schedule( $schedule ) {
		$schedule = sanitize_key( $schedule );
		$schedules = wp_get_schedules();

		// Make sure that the schedule has actually been registered using the `cron_intervals` filter.
		if ( isset( $schedules[ $schedule ] ) ) {
			return $schedule;
		}

		return self::DEFAULT_SYNC_CRON_INTERVAL;
	}

	static function maybe_schedule_sync_cron( $schedule, $hook ) {
		if ( ! $hook ) {
			return;
		}
		$schedule = self::sanitize_filtered_sync_cron_schedule( $schedule );

		if ( ! wp_next_scheduled( $hook ) ) {
			// Schedule a job to send pending queue items once a minute
			wp_schedule_event( time(), $schedule, $hook );
		} else if ( $schedule != wp_get_schedule( $hook ) ) {
			// If the schedule has changed, update the schedule
			wp_clear_scheduled_hook( $hook );
			wp_schedule_event( time(), $schedule, $hook );
		}
	}

	static function init_sync_cron_jobs() {
		// Add a custom "every minute" cron schedule
		add_filter( 'cron_schedules', array( __CLASS__, 'minute_cron_schedule' ) );

		// cron hooks
		add_action( 'jetpack_sync_full', array( __CLASS__, 'do_full_sync' ), 10, 1 );

		add_action( 'jetpack_sync_cron', array( __CLASS__, 'do_cron_sync' ) );
		add_action( 'jetpack_sync_full_cron', array( __CLASS__, 'do_cron_full_sync' ) );

		/**
		 * Allows overriding of the default incremental sync cron schedule which defaults to once per minute.
		 *
		 * @since 4.3.2
		 *
		 * @param string self::DEFAULT_SYNC_CRON_INTERVAL
		 */
		$incremental_sync_cron_schedule = apply_filters( 'jetpack_sync_incremental_sync_interval', self::DEFAULT_SYNC_CRON_INTERVAL );
		self::maybe_schedule_sync_cron( $incremental_sync_cron_schedule, 'jetpack_sync_cron' );

		/**
		 * Allows overriding of the full sync cron schedule which defaults to once per minute.
		 *
		 * @since 4.3.2
		 *
		 * @param string self::DEFAULT_SYNC_CRON_INTERVAL
		 */
		$full_sync_cron_schedule = apply_filters( 'jetpack_sync_full_sync_interval', self::DEFAULT_SYNC_CRON_INTERVAL );
		self::maybe_schedule_sync_cron( $full_sync_cron_schedule, 'jetpack_sync_full_cron' );
	}
}

/**
 * If the site is using alternate cron, we need to init the listener and sender before cron
 * runs. So, we init at a priority of 9.
 * 
 * If the site is using a regular cron job, we init at a priority of 90 which gives plugins a chance
 * to add filters before we initialize.
 */
if ( defined( 'ALTERNATE_WP_CRON' ) && ALTERNATE_WP_CRON ) {
	add_action( 'init', array( 'Jetpack_Sync_Actions', 'init' ), 9 );
} else {
	add_action( 'init', array( 'Jetpack_Sync_Actions', 'init' ), 90 );
}

// We need to define this here so that it's hooked before `updating_jetpack_version` is called
add_action( 'updating_jetpack_version', array( 'Jetpack_Sync_Actions', 'do_initial_sync' ), 10, 2 );


1		<?php
2
3		/**
4		* The role of this class is to hook the Sync subsystem into WordPress - when to listen for actions,
5		* when to send, when to perform a full sync, etc.
6		*
7		* It also binds the action to send data to WPCOM to Jetpack's XMLRPC client object.
8		*/
9		class Jetpack_Sync_Actions {
10		static $sender = null;
		0 ignored issues – show Coding Style introduced 2016-06-29 22:35 UTC by Report Bug Copy Issue Report The visibility should be declared for property `$sender`. The PSR-2 coding standard requires that all properties in a class have their visibility explicitly declared. If you declare a property using class A { var $property; } the property is implicitly global. To learn more about the PSR-2, please see the PHP-FIG site on the PSR-2. Loading history...
11		static $listener = null;
		0 ignored issues – show Coding Style introduced 2016-06-30 03:18 UTC by Report Bug Copy Issue Report The visibility should be declared for property `$listener`. The PSR-2 coding standard requires that all properties in a class have their visibility explicitly declared. If you declare a property using class A { var $property; } the property is implicitly global. To learn more about the PSR-2, please see the PHP-FIG site on the PSR-2. Loading history...
12		const DEFAULT_SYNC_CRON_INTERVAL = '1min';
13
14		static function init() {
15
16		// everything below this point should only happen if we're a valid sync site
17		if ( ! self::sync_allowed() ) {
18		return;
19		}
20
21		if ( self::sync_via_cron_allowed() ) {
22		self::init_sync_cron_jobs();
23		}
24
25		// On jetpack authorization, schedule a full sync
26		add_action( 'jetpack_client_authorized', array( __CLASS__, 'do_full_sync' ), 10, 0 );
27
28		// When importing via cron, do not sync
29		add_action( 'wp_cron_importer_hook', array( __CLASS__, 'set_is_importing_true' ), 1 );
30
31		// Sync connected user role changes to .com
32		require_once dirname( __FILE__ ) . '/class.jetpack-sync-users.php';
33
34		// publicize filter to prevent publicizing blacklisted post types
35		add_filter( 'publicize_should_publicize_published_post', array( __CLASS__, 'prevent_publicize_blacklisted_posts' ), 10, 2 );
36
37		/**
38		* Fires on every request before default loading sync listener code.
39		* Return false to not load sync listener code that monitors common
40		* WP actions to be serialized.
41		*
42		* By default this returns true for cron jobs, non-GET-requests, or requests where the
43		* user is logged-in.
44		*
45		* @since 4.2.0
46		*
47		* @param bool should we load sync listener code for this request
48		*/
49		if ( apply_filters( 'jetpack_sync_listener_should_load', true ) ) {
50		self::initialize_listener();
51		}
52
53		/**
54		* Fires on every request before default loading sync sender code.
55		* Return false to not load sync sender code that serializes pending
56		* data and sends it to WPCOM for processing.
57		*
58		* By default this returns true for cron jobs, POST requests, admin requests, or requests
59		* by users who can manage_options.
60		*
61		* @since 4.2.0
62		*
63		* @param bool should we load sync sender code for this request
64		*/
65		if ( apply_filters( 'jetpack_sync_sender_should_load',
66		(
67		( isset( $_SERVER["REQUEST_METHOD"] ) && 'POST' === $_SERVER['REQUEST_METHOD'] )
68		\|\|
69		current_user_can( 'manage_options' )
70		\|\|
71		is_admin()
72		\|\|
73		defined( 'PHPUNIT_JETPACK_TESTSUITE' )
74		)
75		) ) {
76		self::initialize_sender();
77		add_action( 'shutdown', array( self::$sender, 'do_sync' ) );
78		add_action( 'shutdown', array( self::$sender, 'do_full_sync' ) );
79		}
80
81		}
82
83		static function sync_allowed() {
84		require_once dirname( __FILE__ ) . '/class.jetpack-sync-settings.php';
85		return ( ! Jetpack_Sync_Settings::get_setting( 'disable' ) && Jetpack::is_active() && ! ( Jetpack::is_development_mode() \|\| Jetpack::is_staging_site() ) )
86		\|\| defined( 'PHPUNIT_JETPACK_TESTSUITE' );
87		}
88
89		static function sync_via_cron_allowed() {
90		require_once dirname( __FILE__ ) . '/class.jetpack-sync-settings.php';
91		return ( Jetpack_Sync_Settings::get_setting( 'sync_via_cron' ) );
92		}
93
94		static function prevent_publicize_blacklisted_posts( $should_publicize, $post ) {
95		require_once dirname( __FILE__ ) . '/class.jetpack-sync-settings.php';
96		if ( in_array( $post->post_type, Jetpack_Sync_Settings::get_setting( 'post_types_blacklist' ) ) ) {
97		return false;
98		}
99
100		return $should_publicize;
101		}
102
103		static function set_is_importing_true() {
104		require_once dirname( __FILE__ ) . '/class.jetpack-sync-settings.php';
105		Jetpack_Sync_Settings::set_importing( true );
106		}
107
108		static function send_data( $data, $codec_name, $sent_timestamp, $queue_id ) {
109		Jetpack::load_xml_rpc_client();
110
111		$query_args = array(
112		'sync' => '1', // add an extra parameter to the URL so we can tell it's a sync action
113		'codec' => $codec_name, // send the name of the codec used to encode the data
114		'timestamp' => $sent_timestamp, // send current server time so we can compensate for clock differences
115		'queue' => $queue_id, // sync or full_sync
116		'home' => get_home_url(), // Send home url option to check for Identity Crisis server-side
117		'siteurl' => get_site_url(), // Send siteurl option to check for Identity Crisis server-side
118		);
119
120		// Has the site opted in to IDC mitigation?
121		if ( Jetpack::sync_idc_optin() ) {
122		$query_args['idc'] = true;
123		}
124
125		if ( Jetpack_Options::get_option( 'migrate_for_idc', false ) ) {
126		$query_args['migrate_for_idc'] = true;
127		}
128
129		$query_args['timeout'] = Jetpack_Sync_Settings::is_doing_cron() ? 30 : 15;
130
131		$url = add_query_arg( $query_args, Jetpack::xmlrpc_api_url() );
132
133		$rpc = new Jetpack_IXR_Client( array(
134		'url' => $url,
135		'user_id' => JETPACK_MASTER_USER,
136		'timeout' => $query_args['timeout'],
137		) );
138
139		$result = $rpc->query( 'jetpack.syncActions', $data );
140
141		if ( ! $result ) {
142		return $rpc->get_jetpack_error();
143		}
144
145		$response = $rpc->getResponse();
146
147		// Check if WordPress.com IDC mitigation blocked the sync request
148		if ( is_array( $response ) && isset( $response['error_code'] ) ) {
149		$error_code = $response['error_code'];
150		$allowed_idc_error_codes = array(
151		'jetpack_url_mismatch',
152		'jetpack_home_url_mismatch',
153		'jetpack_site_url_mismatch'
154		);
155
156		if ( in_array( $error_code, $allowed_idc_error_codes ) ) {
157		Jetpack_Options::update_option(
158		'sync_error_idc',
159		Jetpack::get_sync_error_idc_option( $response )
160		);
161		}
162
163		return new WP_Error(
164		'sync_error_idc',
165		esc_html__( 'Sync has been blocked from WordPress.com because it would cause an identity crisis', 'jetpack' )
166		);
167		}
168
169		return $response;
170		}
171
172		static function do_initial_sync( $new_version = null, $old_version = null ) {
173		$initial_sync_config = array(
174		'options' => true,
175		'network_options' => true,
176		'functions' => true,
177		'constants' => true,
178		);
179
180		if ( $old_version && ( version_compare( $old_version, '4.2', '<' ) ) ) {
181		$initial_sync_config['users'] = 'initial';
182		}
183
184		self::do_full_sync( $initial_sync_config );
185		}
186
187		static function do_full_sync( $modules = null ) {
188		if ( ! self::sync_allowed() ) {
189		return false;
190		}
191
192		self::initialize_listener();
193		Jetpack_Sync_Modules::get_module( 'full-sync' )->start( $modules );
194
195		return true;
196		}
197
198	View Code Duplication	static function minute_cron_schedule( $schedules ) {
199		if( ! isset( $schedules['1min'] ) ) {
200		$schedules['1min'] = array(
201		'interval' => 60,
202		'display' => esc_html__( 'Every minute', 'jetpack' )
203		);
204		}
205		return $schedules;
206		}
207
208		// try to send actions until we run out of things to send,
209		// or have to wait more than 15s before sending again,
210		// or we hit a lock or some other sending issue
211	View Code Duplication	static function do_cron_sync() {
212		if ( ! self::sync_allowed() ) {
213		return;
214		}
215
216		self::initialize_sender();
217
218		do {
219		$next_sync_time = self::$sender->get_next_sync_time( 'sync' );
220
221		if ( $next_sync_time ) {
222		$delay = $next_sync_time - time() + 1;
223		if ( $delay > 15 ) {
224		break;
225		} elseif ( $delay > 0 ) {
226		sleep( $delay );
227		}
228		}
229
230		$result = self::$sender->do_sync();
231		} while ( $result );
232		}
233
234	View Code Duplication	static function do_cron_full_sync() {
235		if ( ! self::sync_allowed() ) {
236		return;
237		}
238
239		self::initialize_sender();
240
241		do {
242		$next_sync_time = self::$sender->get_next_sync_time( 'full_sync' );
243
244		if ( $next_sync_time ) {
245		$delay = $next_sync_time - time() + 1;
246		if ( $delay > 15 ) {
247		break;
248		} elseif ( $delay > 0 ) {
249		sleep( $delay );
250		}
251		}
252
253		$result = self::$sender->do_full_sync();
254		} while ( $result );
255		}
256
257		static function initialize_listener() {
258		require_once dirname( __FILE__ ) . '/class.jetpack-sync-listener.php';
259		self::$listener = Jetpack_Sync_Listener::get_instance();
260		}
261
262		static function initialize_sender() {
263		require_once dirname( __FILE__ ) . '/class.jetpack-sync-sender.php';
264		self::$sender = Jetpack_Sync_Sender::get_instance();
265
266		// bind the sending process
267		add_filter( 'jetpack_sync_send_data', array( __CLASS__, 'send_data' ), 10, 4 );
268		}
269
270		static function sanitize_filtered_sync_cron_schedule( $schedule ) {
271		$schedule = sanitize_key( $schedule );
272		$schedules = wp_get_schedules();
273
274		// Make sure that the schedule has actually been registered using the `cron_intervals` filter.
275		if ( isset( $schedules[ $schedule ] ) ) {
276		return $schedule;
277		}
278
279		return self::DEFAULT_SYNC_CRON_INTERVAL;
280		}
281
282		static function maybe_schedule_sync_cron( $schedule, $hook ) {
283		if ( ! $hook ) {
284		return;
285		}
286		$schedule = self::sanitize_filtered_sync_cron_schedule( $schedule );
287
288		if ( ! wp_next_scheduled( $hook ) ) {
289		// Schedule a job to send pending queue items once a minute
290		wp_schedule_event( time(), $schedule, $hook );
291		} else if ( $schedule != wp_get_schedule( $hook ) ) {
292		// If the schedule has changed, update the schedule
293		wp_clear_scheduled_hook( $hook );
294		wp_schedule_event( time(), $schedule, $hook );
295		}
296		}
297
298		static function init_sync_cron_jobs() {
299		// Add a custom "every minute" cron schedule
300		add_filter( 'cron_schedules', array( __CLASS__, 'minute_cron_schedule' ) );
301
302		// cron hooks
303		add_action( 'jetpack_sync_full', array( __CLASS__, 'do_full_sync' ), 10, 1 );
304
305		add_action( 'jetpack_sync_cron', array( __CLASS__, 'do_cron_sync' ) );
306		add_action( 'jetpack_sync_full_cron', array( __CLASS__, 'do_cron_full_sync' ) );
307
308		/**
309		* Allows overriding of the default incremental sync cron schedule which defaults to once per minute.
310		*
311		* @since 4.3.2
312		*
313		* @param string self::DEFAULT_SYNC_CRON_INTERVAL
314		*/
315		$incremental_sync_cron_schedule = apply_filters( 'jetpack_sync_incremental_sync_interval', self::DEFAULT_SYNC_CRON_INTERVAL );
316		self::maybe_schedule_sync_cron( $incremental_sync_cron_schedule, 'jetpack_sync_cron' );
317
318		/**
319		* Allows overriding of the full sync cron schedule which defaults to once per minute.
320		*
321		* @since 4.3.2
322		*
323		* @param string self::DEFAULT_SYNC_CRON_INTERVAL
324		*/
325		$full_sync_cron_schedule = apply_filters( 'jetpack_sync_full_sync_interval', self::DEFAULT_SYNC_CRON_INTERVAL );
326		self::maybe_schedule_sync_cron( $full_sync_cron_schedule, 'jetpack_sync_full_cron' );
327		}
328		}
329
330		/**
331		* If the site is using alternate cron, we need to init the listener and sender before cron
332		* runs. So, we init at a priority of 9.
333		*
334		* If the site is using a regular cron job, we init at a priority of 90 which gives plugins a chance
335		* to add filters before we initialize.
336		*/
337		if ( defined( 'ALTERNATE_WP_CRON' ) && ALTERNATE_WP_CRON ) {
338		add_action( 'init', array( 'Jetpack_Sync_Actions', 'init' ), 9 );
339		} else {
340		add_action( 'init', array( 'Jetpack_Sync_Actions', 'init' ), 90 );
341		}
342
343		// We need to define this here so that it's hooked before `updating_jetpack_version` is called
344		add_action( 'updating_jetpack_version', array( 'Jetpack_Sync_Actions', 'do_initial_sync' ), 10, 2 );
345

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