Completed
Push — fix/gulp-env ( ec4107...cf0b47 )
by
unknown
133:51 queued 124:05
created

Jetpack_Sync_Sender::get_sync_wait_time()   A

Complexity

Conditions 1
Paths 1

Size

Total Lines 3
Code Lines 2

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
cc 1
eloc 2
nc 1
nop 0
dl 0
loc 3
rs 10
c 0
b 0
f 0
1
<?php
2
3
require_once dirname( __FILE__ ) . '/class.jetpack-sync-queue.php';
4
require_once dirname( __FILE__ ) . '/class.jetpack-sync-defaults.php';
5
require_once dirname( __FILE__ ) . '/class.jetpack-sync-json-deflate-codec.php';
6
require_once dirname( __FILE__ ) . '/class.jetpack-sync-modules.php';
7
require_once dirname( __FILE__ ) . '/class.jetpack-sync-settings.php';
8
9
/**
10
 * This class grabs pending actions from the queue and sends them
11
 */
12
class Jetpack_Sync_Sender {
13
14
	const SYNC_THROTTLE_OPTION_NAME = 'jetpack_sync_min_wait';
15
	const LAST_SYNC_TIME_OPTION_NAME = 'jetpack_last_sync_time';
16
17
	private $dequeue_max_bytes;
18
	private $upload_max_bytes;
19
	private $upload_max_rows;
20
	private $sync_wait_time;
21
	private $sync_queue;
22
	private $full_sync_client;
0 ignored issues
show
Unused Code introduced by
The property $full_sync_client is not used and could be removed.

This check marks private properties in classes that are never used. Those properties can be removed.

Loading history...
23
	private $codec;
24
25
	// singleton functions
26
	private static $instance;
27
28
	public static function getInstance() {
29
		if ( null === self::$instance ) {
30
			self::$instance = new self();
31
		}
32
33
		return self::$instance;
34
	}
35
36
	// this is necessary because you can't use "new" when you declare instance properties >:(
37
	protected function __construct() {
38
		$this->set_defaults();
39
		$this->init();
40
	}
41
42
	private function init() {
43
44
		foreach( Jetpack_Sync_Modules::get_modules() as $module ) {
45
			$module->init_before_send();
46
		}
47
48
		/**
49
		 * Sync all pending actions with server
50
		 */
51
		add_action( 'jetpack_sync_actions', array( $this, 'do_sync' ) );
52
	}
53
54
	public function do_sync() {
55
		// don't sync if importing
56
		if ( defined( 'WP_IMPORTING' ) && WP_IMPORTING ) {
57
			$this->schedule_sync( "+1 minute" );
58
59
			return false;
60
		}
61
62
		// don't sync if we are throttled
63
		$sync_wait = $this->get_sync_wait_time();
64
		$last_sync = $this->get_last_sync_time();
65
66
		if ( $last_sync && $sync_wait && $last_sync + $sync_wait > microtime( true ) ) {
67
			return false;
68
		}
69
70
		$this->set_last_sync_time();
71
72
		do_action( 'jetpack_sync_before_send' );
73
74
		if ( $this->sync_queue->size() === 0 ) {
75
			return false;
76
		}
77
78
		// now that we're sure we are about to sync, try to
79
		// ignore user abort so we can avoid getting into a
80
		// bad state
81
		if ( function_exists( 'ignore_user_abort' ) ) {
82
			ignore_user_abort( true );
83
		}
84
85
		$buffer = $this->sync_queue->checkout_with_memory_limit( $this->dequeue_max_bytes, $this->upload_max_rows );
86
87
		if ( ! $buffer ) {
88
			// buffer has no items
89
			return false;
90
		}
91
92
		if ( is_wp_error( $buffer ) ) {
93
			// another buffer is currently sending
94
			return false;
95
		}
96
97
		$upload_size   = 0;
98
		$items_to_send = array();
99
		$items = $buffer->get_items();
100
101
		// we estimate the total encoded size as we go by encoding each item individually
102
		// this is expensive, but the only way to really know :/
103
		foreach ( $items as $key => $item ) {
104
			/**
105
			 * Modify the data within an action before it is serialized and sent to the server
106
			 * For example, during full sync this expands Post ID's into full Post objects,
107
			 * so that we don't have to serialize the whole object into the queue.
108
			 *
109
			 * @since 4.2.0
110
			 *
111
			 * @param array The action parameters
112
			 */
113
			$item[1] = apply_filters( "jetpack_sync_before_send_" . $item[0], $item[1], $item[2] );
114
115
			$encoded_item = $this->codec->encode( $item );
116
117
			$upload_size += strlen( $encoded_item );
118
119
			if ( $upload_size > $this->upload_max_bytes && count( $items_to_send ) > 0 ) {
120
				break;
121
			}
122
123
			$items_to_send[ $key ] = $encoded_item;
124
		}
125
126
		/**
127
		 * Fires when data is ready to send to the server.
128
		 * Return false or WP_Error to abort the sync (e.g. if there's an error)
129
		 * The items will be automatically re-sent later
130
		 *
131
		 * @since 4.2.0
132
		 *
133
		 * @param array $data The action buffer
134
		 */
135
		$processed_item_ids = apply_filters( 'jetpack_sync_send_data', $items_to_send, $this->codec->name(), microtime( true ) );
136
137
		if ( ! $processed_item_ids || is_wp_error( $processed_item_ids ) ) {
138
			$processed_item_ids = $this->sync_queue->checkin( $buffer );
139
140
			if ( is_wp_error( $processed_item_ids ) ) {
141
				error_log( "Error checking in buffer: " . $processed_item_ids->get_error_message() );
142
				$this->sync_queue->force_checkin();
143
			}
144
			// try again in 1 minute
145
			$this->schedule_sync( "+1 minute" );
146
		} else {
147
			$processed_items = array_intersect_key( $items, array_flip( $processed_item_ids ) );
148
149
			/**
150
			 * Allows us to keep track of all the actions that have been sent.
151
			 * Allows us to calculate the progress of specific actions.
152
			 *
153
			 * @since 4.2.0
154
			 *
155
			 * @param array $processed_actions The actions that we send successfully.
156
			 */
157
			do_action( 'jetpack_sync_processed_actions', $processed_items );
158
159
			$this->sync_queue->close( $buffer, $processed_item_ids );
160
			// check if there are any more events in the buffer
161
			// if so, schedule a cron job to happen soon
162
			if ( $this->sync_queue->has_any_items() ) {
163
				$this->schedule_sync( "+1 minute" );
164
			}
165
		}
166
	}
167
168
	private function schedule_sync( $when ) {
169
		wp_schedule_single_event( strtotime( $when ), 'jetpack_sync_actions' );
170
	}
171
172
	function get_sync_queue() {
173
		return $this->sync_queue;
174
	}
175
176
	function get_codec() {
177
		return $this->codec;
178
	}
179
180
	function send_checksum() {
181
		require_once 'class.jetpack-sync-wp-replicastore.php';
182
		$store = new Jetpack_Sync_WP_Replicastore();
183
		do_action( 'jetpack_sync_checksum', $store->checksum_all() );
184
	}
185
186
	function reset_sync_queue() {
187
		Jetpack_Sync_Modules::get_module( 'full-sync' )->clear_status();
188
		$this->sync_queue->reset();
189
	}
190
191
	function set_dequeue_max_bytes( $size ) {
192
		$this->dequeue_max_bytes = $size;
193
	}
194
195
	// in bytes
196
	function set_upload_max_bytes( $max_bytes ) {
197
		$this->upload_max_bytes = $max_bytes;
198
	}
199
200
	// in rows
201
	function set_upload_max_rows( $max_rows ) {
202
		$this->upload_max_rows = $max_rows;
203
	}
204
205
	// in seconds
206
	function set_sync_wait_time( $seconds ) {
207
		$this->sync_wait_time = $seconds;
208
	}
209
210
	function get_sync_wait_time() {
211
		return $this->sync_wait_time;
212
	}
213
214
	private function get_last_sync_time() {
215
		return (double) get_option( self::LAST_SYNC_TIME_OPTION_NAME );
216
	}
217
218
	private function set_last_sync_time() {
219
		return update_option( self::LAST_SYNC_TIME_OPTION_NAME, microtime( true ), true );
220
	}
221
222
	function set_defaults() {
223
		$this->sync_queue = new Jetpack_Sync_Queue( 'sync' );
224
		$this->codec = new Jetpack_Sync_JSON_Deflate_Codec();
225
226
		// saved settings
227
		$settings = Jetpack_Sync_Settings::get_settings();
228
		$this->set_dequeue_max_bytes( $settings['dequeue_max_bytes'] );
229
		$this->set_upload_max_bytes( $settings['upload_max_bytes'] );
230
		$this->set_upload_max_rows( $settings['upload_max_rows'] );
231
		$this->set_sync_wait_time( $settings['sync_wait_time'] );
232
	}
233
234
	function reset_data() {
235
		$this->reset_sync_queue();
236
237
		foreach( Jetpack_Sync_Modules::get_modules() as $module ) {
238
			$module->reset_data();
239
		}
240
241
		delete_option( self::SYNC_THROTTLE_OPTION_NAME );
242
		delete_option( self::LAST_SYNC_TIME_OPTION_NAME );
243
244
		Jetpack_Sync_Settings::reset_data();
245
	}
246
247
	function uninstall() {
248
		// Lets delete all the other fun stuff like transient and option and the sync queue
249
		$this->reset_data();
250
251
		// delete the full sync status
252
		delete_option( 'jetpack_full_sync_status' );
253
254
		// clear the sync cron.
255
		wp_clear_scheduled_hook( 'jetpack_sync_actions' );
256
257
		// clear the checksum cron
258
		wp_clear_scheduled_hook( 'jetpack_send_db_checksum' );
259
	}
260
}
261