laipower/wp-content/plugins/w3-total-cache/Enterprise_CacheFlush_MakeSnsEvent.php

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<?php
namespace W3TC;
/**
* Purge using AmazonSNS object
*/
class Enterprise_CacheFlush_MakeSnsEvent extends Enterprise_SnsBase {
private $messages = array();
private $messages_by_signature = array();
/**
* Flushes DB caches
*
*/
function dbcache_flush() {
$this->_prepare_message( array( 'action' => 'dbcache_flush' ) );
}
/**
* Flushes minify caches
*
*/
function minifycache_flush() {
$this->_prepare_message( array( 'action' => 'minifycache_flush' ) );
}
/**
* Flushes object caches
*
*/
function objectcache_flush() {
$this->_prepare_message( array( 'action' => 'objectcache_flush' ) );
}
/**
* Flushes fragment caches
*
*/
function fragmentcache_flush() {
$this->_prepare_message( array( 'action' => 'fragmentcache_flush' ) );
}
/**
* Flushes fragment cache based on group
*
*/
function fragmentcache_flush_group( $group ) {
$this->_prepare_message( array( 'action' => 'fragmentcache_flush_group',
'group' => $group ) );
}
/**
* Flushes query string
*
*/
function browsercache_flush() {
$this->_prepare_message( array( 'action' => 'browsercache_flush' ) );
}
function cdn_purge_all( $extras = null ) {
return $this->_prepare_message( array(
'action' => 'cdn_purge_all',
'extras' => $extras ) );
}
/**
* Purges Files from Varnish (If enabled) and CDN
*
*/
function cdn_purge_files( $purgefiles ) {
$this->_prepare_message( array( 'action' => 'cdn_purge_files', 'purgefiles' => $purgefiles ) );
}
/**
* Performs garbage collection on the pgcache
*/
function pgcache_cleanup() {
$this->_prepare_message( array( 'action' => 'pgcache_cleanup' ) );
}
/**
* Flushes the system APC
*
* @return bool
*/
function opcache_flush() {
$this->_prepare_message( array( 'action' => 'opcache_flush' ) );
}
/**
* Purges/Flushes post page
*
* @param unknown $post_id
* @return boolean
*/
function flush_post( $post_id, $extras = null ) {
return $this->_prepare_message( array(
'action' => 'flush_post',
'post_id' => $post_id,
'extras' => $extras ) );
}
/**
* Purges/Flushes posts from caches
*
* @param unknown $extras
* @return boolean
*/
function flush_posts( $extras ) {
return $this->_prepare_message( array(
'action' => 'flush_posts',
'extras' => $extras ) );
}
/**
* Purges/Flushes all enabled caches
*
* @return boolean
*/
function flush_all( $extras ) {
return $this->_prepare_message( array(
'action' => 'flush_all',
'extras' => $extras
) );
}
function flush_group( $group, $extras ) {
return $this->_prepare_message( array(
'action' => 'flush_group',
'group' => $group,
'extras' => $extras
) );
}
/**
* Purges/Flushes url
*
* @param string $url
* @return boolean
*/
function flush_url( $url, $extras ) {
return $this->_prepare_message( array(
'action' => 'flush_url',
'url' => $url,
'extras' => $extras ) );
}
/**
* Makes get request to url specific to post, ie permalinks
*
* @param unknown $post_id
* @return mixed
*/
function prime_post( $post_id ) {
return $this->_prepare_message( array( 'action' => 'prime_post', 'post_id' => $post_id ) );
}
/**
* Setups message list and if it should be combined or separate
*
* @param unknown $message
* @return boolean
*/
private function _prepare_message( $message ) {
$message_signature = 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;
}
/**
* Sends messages stored in $messages
*
* @return boolean
*/
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 = 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();
$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 ( $r['@metadata']['statusCode'] != 200 ) {
$this->_log( "Error" );
$this->_log( json_encode($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;
}
/**
* Gets the current running WP action if any. Returns empty string if not found.
*
* @return string
*/
private function _get_action() {
$action = '';
if ( function_exists( 'current_filter' ) )
$action = current_filter();
return $action;
}
}