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Invalidation_Service.php
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Invalidation_Service.php
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<?php
namespace C3_CloudFront_Cache_Controller;
use C3_CloudFront_Cache_Controller\WP\Post_Service;
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
class Invalidation_Service {
private $hook_service;
private $option_service;
private $transient_service;
private $invalidation_batch;
private $debug;
function __construct( ...$args ) {
$this->hook_service = new WP\Hooks();
$this->option_service = new WP\Options_Service();
$this->invalidation_batch = new AWS\Invalidation_Batch_Service();
$this->transient_service = new WP\Transient_Service();
$this->cf_service = new AWS\CloudFront_Service();
$this->notice = new WP\Admin_Notice();
if ( $args && ! empty( $args ) ) {
foreach ( $args as $key => $value ) {
if ( $value instanceof WP\Hooks ) {
$this->hook_service = $value;
} elseif ( $value instanceof WP\Transient_Service ) {
$this->transient_service = $value;
} elseif ( $value instanceof WP\Options_Service ) {
$this->option_service = $value;
} elseif ( $value instanceof AWS\Invalidation_Batch_Service ) {
$this->invalidation_batch = $value;
} elseif ( $value instanceof AWS\CloudFront_Service ) {
$this->cf_service = $value;
} elseif ( $value instanceof WP\Admin_Notice ) {
$this->notice = $value;
}
}
}
$this->hook_service->add_action(
'transition_post_status',
array(
$this,
'invalidate_by_changing_post_status',
),
10,
3
);
$this->hook_service->add_action(
'admin_init',
array(
$this,
'invalidate_manually',
)
);
$this->debug = $this->hook_service->apply_filters( 'c3_log_cron_register_task', false );
}
/**
* Invalidate all cache manually
*/
public function invalidate_manually() {
if ( empty( $_POST ) ) {
return;
}
$result = null;
$key = Constants::C3_INVALIDATION;
if ( ! isset( $_POST[ $key ] ) || ! $_POST[ $key ] ) {
return;
}
if ( ! check_admin_referer( $key, $key ) ) {
return;
}
$invalidation_target = $_POST['invalidation_target'];
try {
if ( ! isset( $invalidation_target ) ) {
throw new \Error( 'invalidation_target is required' );
}
if ( 'all' === $invalidation_target ) {
$result = $this->invalidate_all();
} else {
$post_service = new Post_Service();
$posts = $post_service->list_posts_by_ids( explode( ',', $invalidation_target ) );
$this->invalidate_posts_cache( $posts, true );
}
} catch ( \Exception $e ) {
$result = new \WP_Error( 'C3 Invalidation Error', $e->getMessage() );
}
if ( ! isset( $result ) ) {
return;
}
if ( is_wp_error( $result ) ) {
$this->notice->show_admin_error( $result );
} else {
$this->notice->show_admin_success( $result['message'], $result['type'] );
}
}
/**
* Register cron event to send the overflowed invalidation paths
*
* @return boolean - If true, cron has been scheduled
*/
public function register_cron_event( $query ) {
if ( $this->debug ) {
error_log( '===== C3 CRON Job registration [START] ===' );
}
if ( ! isset( $query['Paths'] ) || ! isset( $query['Paths']['Items'] ) || $query['Paths']['Items'][0] === '/*' ) {
if ( $this->debug ) {
error_log( '===== C3 CRON Job registration [SKIP | NO ITEM] ===' );
}
return false;
}
if ( $this->hook_service->apply_filters( 'c3_disabled_cron_retry', false ) ) {
if ( $this->debug ) {
error_log( '===== C3 CRON Job registration [SKIP | DISABLED] ===' );
}
return false;
}
$query = $this->transient_service->save_invalidation_query( $query );
$interval_minutes = $this->hook_service->apply_filters( 'c3_invalidation_cron_interval', 1 );
$time = time() + MINUTE_IN_SECONDS * $interval_minutes;
if ( $this->debug ) {
error_log( print_r( $query, true ) );
}
$result = wp_schedule_single_event( $time, 'c3_cron_invalidation' );
if ( $this->debug ) {
error_log( '===== C3 CRON Job registration [COMPLETE] ===' );
}
return $result;
}
/**
* Check the post status to run invalidation or not.
*/
public function should_invalidate( $new_status, $old_status ) {
if ( 'publish' === $new_status ) {
// if publish or update posts.
$result = true;
} elseif ( 'publish' === $old_status && $new_status !== $old_status ) {
// if un-published post.
$result = true;
} else {
$result = false;
}
$result = $this->hook_service->apply_filters( 'c3_is_invalidation', $result );
return $result;
}
/**
* Execute invalidation process when post status has been changed.
*/
public function invalidate_by_changing_post_status( $new_status, $old_status, $post ) {
if ( ! $this->should_invalidate( $new_status, $old_status ) ) {
return;
}
$this->invalidate_post_cache( $post );
}
public function invalidate_by_query( $query, $force = false ) {
if ( $this->transient_service->should_regist_cron_job() && false === $force ) {
/**
* Just regist a cron job.
*/
$this->register_cron_event( $query['InvalidationBatch'] );
return array(
'type' => 'Success',
'message' => 'Invalidation has been succeeded, please wait a 5 ~ 10 minutes to remove the cache.',
);
}
/**
* Execute invalidation request
*/
$this->transient_service->set_invalidation_time();
$result = $this->cf_service->create_invalidation( $query );
if ( is_wp_error( $result ) ) {
return $result;
}
return array(
'type' => 'Success',
'message' => 'Invalidation has been succeeded, please wait a few minutes to remove the cache.',
);
}
/**
* Invalidate the post's caches
*/
public function invalidate_post_cache( \WP_Post $post, $force = false ) {
$home_url = $this->option_service->home_url( '/' );
$options = $this->option_service->get_options();
$query = $this->invalidation_batch->create_batch_by_post( $home_url, $options['distribution_id'], $post );
return $this->invalidate_by_query( $query, $force );
}
/**
* Invalidate the post's caches
*/
public function invalidate_posts_cache( array $posts = array(), $force = false ) {
$home_url = $this->option_service->home_url( '/' );
$options = $this->option_service->get_options();
$query = $this->invalidation_batch->create_batch_by_posts( $home_url, $options['distribution_id'], $posts );
return $this->invalidate_by_query( $query, $force );
}
/**
* Invalidate all cache
*/
public function invalidate_all() {
$options = $this->option_service->get_options();
$query = $this->invalidation_batch->create_batch_for_all( $options['distribution_id'] );
return $this->invalidate_by_query( $query, true );
}
public function list_recent_invalidation_logs() {
$histories = $this->cf_service->list_invalidations();
return $histories;
}
}