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| Current File : /home1/savoy/sportsmeet.net/wp-content/plugins/woocommerce/includes/class-wc-background-emailer.php |
<?php
/**
* Background Emailer
*
* @version 3.0.1
* @package WooCommerce/Classes
*/
use Automattic\Jetpack\Constants;
defined( 'ABSPATH' ) || exit;
if ( ! class_exists( 'WC_Background_Process', false ) ) {
include_once dirname( __FILE__ ) . '/abstracts/class-wc-background-process.php';
}
/**
* WC_Background_Emailer Class.
*/
class WC_Background_Emailer extends WC_Background_Process {
/**
* Initiate new background process.
*/
public function __construct() {
// Uses unique prefix per blog so each blog has separate queue.
$this->prefix = 'wp_' . get_current_blog_id();
$this->action = 'wc_emailer';
// Dispatch queue after shutdown.
add_action( 'shutdown', array( $this, 'dispatch_queue' ), 100 );
parent::__construct();
}
/**
* Schedule fallback event.
*/
protected function schedule_event() {
if ( ! wp_next_scheduled( $this->cron_hook_identifier ) ) {
wp_schedule_event( time() + 10, $this->cron_interval_identifier, $this->cron_hook_identifier );
}
}
/**
* Task
*
* Override this method to perform any actions required on each
* queue item. Return the modified item for further processing
* in the next pass through. Or, return false to remove the
* item from the queue.
*
* @param array $callback Update callback function.
* @return mixed
*/
protected function task( $callback ) {
if ( isset( $callback['filter'], $callback['args'] ) ) {
try {
WC_Emails::send_queued_transactional_email( $callback['filter'], $callback['args'] );
} catch ( Exception $e ) {
if ( Constants::is_true( 'WP_DEBUG' ) ) {
trigger_error( 'Transactional email triggered fatal error for callback ' . esc_html( $callback['filter'] ), E_USER_WARNING ); // phpcs:ignore WordPress.PHP.DevelopmentFunctions.error_log_trigger_error
}
}
}
return false;
}
/**
* Finishes replying to the client, but keeps the process running for further (async) code execution.
*
* @see https://core.trac.wordpress.org/ticket/41358 .
*/
protected function close_http_connection() {
// Only 1 PHP process can access a session object at a time, close this so the next request isn't kept waiting.
// @codingStandardsIgnoreStart
if ( session_id() ) {
session_write_close();
}
// @codingStandardsIgnoreEnd
wc_set_time_limit( 0 );
// fastcgi_finish_request is the cleanest way to send the response and keep the script running, but not every server has it.
if ( is_callable( 'fastcgi_finish_request' ) ) {
fastcgi_finish_request();
} else {
// Fallback: send headers and flush buffers.
if ( ! headers_sent() ) {
header( 'Connection: close' );
}
@ob_end_flush(); // phpcs:ignore Generic.PHP.NoSilencedErrors.Discouraged
flush();
}
}
/**
* Save and run queue.
*/
public function dispatch_queue() {
if ( ! empty( $this->data ) ) {
$this->close_http_connection();
$this->save()->dispatch();
}
}
/**
* Get post args
*
* @return array
*/
protected function get_post_args() {
if ( property_exists( $this, 'post_args' ) ) {
return $this->post_args;
}
// Pass cookies through with the request so nonces function.
$cookies = array();
foreach ( $_COOKIE as $name => $value ) { // WPCS: input var ok.
if ( 'PHPSESSID' === $name ) {
continue;
}
$cookies[] = new WP_Http_Cookie( array(
'name' => $name,
'value' => $value,
) );
}
return array(
'timeout' => 0.01,
'blocking' => false,
'body' => $this->data,
'cookies' => $cookies,
'sslverify' => apply_filters( 'https_local_ssl_verify', false ),
);
}
/**
* Handle
*
* Pass each queue item to the task handler, while remaining
* within server memory and time limit constraints.
*/
protected function handle() {
$this->lock_process();
do {
$batch = $this->get_batch();
if ( empty( $batch->data ) ) {
break;
}
foreach ( $batch->data as $key => $value ) {
$task = $this->task( $value );
if ( false !== $task ) {
$batch->data[ $key ] = $task;
} else {
unset( $batch->data[ $key ] );
}
// Update batch before sending more to prevent duplicate email possibility.
$this->update( $batch->key, $batch->data );
if ( $this->time_exceeded() || $this->memory_exceeded() ) {
// Batch limits reached.
break;
}
}
if ( empty( $batch->data ) ) {
$this->delete( $batch->key );
}
} while ( ! $this->time_exceeded() && ! $this->memory_exceeded() && ! $this->is_queue_empty() );
$this->unlock_process();
// Start next batch or complete process.
if ( ! $this->is_queue_empty() ) {
$this->dispatch();
} else {
$this->complete();
}
}
}