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<?php
/**
* File: Enterprise_CacheFlush_MakeSnsEvent.php
*
* @package W3TC
*/
namespace W3TC;
/**
* Class Enterprise_CacheFlush_MakeSnsEvent
*
* Purge using AmazonSNS object
*
* phpcs:disable PSR2.Methods.MethodDeclaration.Underscore
* phpcs:disable WordPress.PHP.NoSilencedErrors.Discouraged
*/
class Enterprise_CacheFlush_MakeSnsEvent extends Enterprise_SnsBase {
/**
* Messages
*
* @var array
*/
private $messages = array();
/**
* Messages by signature
*
* @var array
*/
private $messages_by_signature = array();
/**
* Flushes the database cache.
*
* @return void
*/
public function dbcache_flush() {
$this->_prepare_message( array( 'action' => 'dbcache_flush' ) );
}
/**
* Flushes the minify cache.
*
* @return void
*/
public function minifycache_flush() {
$this->_prepare_message( array( 'action' => 'minifycache_flush' ) );
}
/**
* Flushes the object cache.
*
* @return void
*/
public function objectcache_flush() {
$this->_prepare_message( array( 'action' => 'objectcache_flush' ) );
}
/**
* Flushes the fragment cache.
*
* @return void
*/
public function fragmentcache_flush() {
$this->_prepare_message( array( 'action' => 'fragmentcache_flush' ) );
}
/**
* Flushes a specific fragment cache group.
*
* @param string $group The cache group to flush.
*
* @return void
*/
public function fragmentcache_flush_group( $group ) {
$this->_prepare_message(
array(
'action' => 'fragmentcache_flush_group',
'group' => $group,
)
);
}
/**
* Flushes the browser cache.
*
* @return void
*/
public function browsercache_flush() {
$this->_prepare_message( array( 'action' => 'browsercache_flush' ) );
}
/**
* Purges all CDN cache.
*
* @param mixed|null $extras Optional additional data for purging.
*
* @return bool
*/
public function cdn_purge_all( $extras = null ) {
return $this->_prepare_message(
array(
'action' => 'cdn_purge_all',
'extras' => $extras,
)
);
}
/**
* Purges specific files from the CDN cache.
*
* @param array $purgefiles List of files to purge.
*
* @return void
*/
public function cdn_purge_files( $purgefiles ) {
$this->_prepare_message(
array(
'action' => 'cdn_purge_files',
'purgefiles' => $purgefiles,
)
);
}
/**
* Cleans up the page cache.
*
* @return void
*/
public function pgcache_cleanup() {
$this->_prepare_message( array( 'action' => 'pgcache_cleanup' ) );
}
/**
* Flushes the OPcache.
*
* @return void
*/
public function opcache_flush() {
$this->_prepare_message( array( 'action' => 'opcache_flush' ) );
}
/**
* Flushes the cache for a specific post.
*
* @param int $post_id The ID of the post to flush.
* @param mixed|null $extras Optional additional data for flushing.
*
* @return bool
*/
public function flush_post( $post_id, $extras = null ) {
return $this->_prepare_message(
array(
'action' => 'flush_post',
'post_id' => $post_id,
'extras' => $extras,
)
);
}
/**
* Flushes the cache for multiple posts.
*
* @param mixed $extras Additional data for flushing.
*
* @return bool
*/
public function flush_posts( $extras ) {
return $this->_prepare_message(
array(
'action' => 'flush_posts',
'extras' => $extras,
)
);
}
/**
* Flushes all caches.
*
* @param mixed $extras Additional data for flushing.
*
* @return bool
*/
public function flush_all( $extras ) {
return $this->_prepare_message(
array(
'action' => 'flush_all',
'extras' => $extras,
)
);
}
/**
* Flushes a specific cache group.
*
* @param string $group The group to flush.
* @param mixed $extras Additional data for flushing.
*
* @return bool
*/
public function flush_group( $group, $extras ) {
return $this->_prepare_message(
array(
'action' => 'flush_group',
'group' => $group,
'extras' => $extras,
)
);
}
/**
* Flushes the cache for a specific URL.
*
* @param string $url The URL to flush.
* @param mixed $extras Additional data for flushing.
*
* @return bool
*/
public function flush_url( $url, $extras ) {
return $this->_prepare_message(
array(
'action' => 'flush_url',
'url' => $url,
'extras' => $extras,
)
);
}
/**
* Primes the cache for a specific post.
*
* @param int $post_id The ID of the post to prime.
*
* @return bool
*/
public function prime_post( $post_id ) {
return $this->_prepare_message(
array(
'action' => 'prime_post',
'post_id' => $post_id,
)
);
}
/**
* Prepares a message for the caching system.
*
* @param array $message The message to prepare.
*
* @return bool
*/
private function _prepare_message( $message ) {
$message_signature = wp_json_encode( $message );
if ( isset( $this->messages_by_signature[ $message_signature ] ) ) {
return true;
}
$this->messages_by_signature[ $message_signature ] = '*';
$this->messages[] = $message;
$action = $this->_get_action();
if ( ! $action ) {
$this->execute_delayed_operations();
return true;
}
return true;
}
/**
* Executes delayed cache operations.
*
* @return bool
*
* @throws \Exception If an error occurs during API publishing.
*/
public function execute_delayed_operations() {
if ( count( $this->messages ) <= 0 ) {
return true;
}
$this->_log( $this->_get_action() . ' sending messages' );
$message = array();
$message['actions'] = $this->messages;
$message['blog_id'] = Util_Environment::blog_id();
$message['host'] = isset( $_SERVER['HTTP_HOST'] ) ? sanitize_text_field( wp_unslash( $_SERVER['HTTP_HOST'] ) ) : null;
$message['hostname'] = @gethostname();
$v = wp_json_encode( $message );
try {
$api = $this->_get_api();
if ( defined( 'WP_CLI' ) && WP_CLI ) {
$origin = 'WP CLI';
} else {
$origin = 'WP';
}
$this->_log( $origin . ' sending message ' . $v );
$this->_log( 'Host: ' . $message['host'] );
if ( isset( $_SERVER['REQUEST_URI'] ) ) {
$this->_log( 'URL: ' . sanitize_text_field( wp_unslash( $_SERVER['REQUEST_URI'] ) ) );
}
if ( function_exists( 'current_filter' ) ) {
$this->_log( 'Current WP hook: ' . current_filter() );
}
$backtrace = debug_backtrace(); // phpcs:ignore WordPress.PHP.DevelopmentFunctions.error_log_debug_backtrace
$backtrace_optimized = array();
foreach ( $backtrace as $b ) {
$opt = isset( $b['function'] ) ? $b['function'] . ' ' : '';
$opt .= isset( $b['file'] ) ? $b['file'] . ' ' : '';
$opt .= isset( $b['line'] ) ? '#' . $b['line'] . ' ' : '';
$backtrace_optimized[] = $opt;
}
$this->_log( 'Backtrace ', $backtrace_optimized );
$r = $api->publish(
array(
'Message' => $v,
'TopicArn' => $this->_topic_arn,
)
);
if ( 200 !== $r['@metadata']['statusCode'] ) {
$this->_log( 'Error' );
$this->_log( wp_json_encode( $r ) );
return false;
}
} catch ( \Exception $e ) {
$this->_log( 'Error ' . $e->getMessage() );
return false;
}
// on success - reset messages array, but not hash (not resent repeatedly the same messages).
$this->messages = array();
return true;
}
/**
* Retrieves the current action name.
*
* @return string The current action name.
*/
private function _get_action() {
$action = '';
if ( function_exists( 'current_filter' ) ) {
$action = current_filter();
}
return $action;
}
}