/**
* Return full path to log file for module
* Path used in priority
* 1) W3TC_DEBUG_DIR
* 2) WP_DEBUG_LOG
* 3) W3TC_CACHE_DIR
*
* @param unknown $module
* @param null $blog_id
* @return string
*/
public static function log_filename($module, $blog_id = null)
{
if (is_null($blog_id)) {
$blog_id = Util_Environment::blog_id();
}
$postfix = sprintf('%06d', $blog_id);
if (defined('W3TC_BLOG_LEVELS')) {
for ($n = 0; $n < W3TC_BLOG_LEVELS; $n++) {
$postfix = substr($postfix, strlen($postfix) - 1 - $n, 1) . '/' . $postfix;
}
}
$from_dir = W3TC_CACHE_DIR;
if (defined('W3TC_DEBUG_DIR') && W3TC_DEBUG_DIR) {
$dir_path = W3TC_DEBUG_DIR;
if (!is_dir(W3TC_DEBUG_DIR)) {
$from_dir = dirname(W3TC_DEBUG_DIR);
}
} else {
$dir_path = Util_Environment::cache_dir('log');
}
$filename = $dir_path . '/' . $postfix . '/' . $module . '.log';
if (!is_dir(dirname($filename))) {
Util_File::mkdir_from(dirname($filename), $from_dir);
}
return $filename;
}
/**
* Fixes environment
*
* @param Config $config
* @throws Util_Environment_Exceptions
*/
function fix_in_wpadmin($config, $force_all_checks = false)
{
$exs = new Util_Environment_Exceptions();
$fix_on_event = false;
if (Util_Environment::is_wpmu() && Util_Environment::blog_id() != 0) {
if (get_transient('w3tc_config_changes') != ($md5_string = $config->get_md5())) {
$fix_on_event = true;
set_transient('w3tc_config_changes', $md5_string, 3600);
}
}
// call plugin-related handlers
foreach ($this->get_handlers($config) as $h) {
try {
$h->fix_on_wpadmin_request($config, $force_all_checks);
if ($fix_on_event) {
$this->fix_on_event($config, 'admin_request');
}
} catch (Util_Environment_Exceptions $ex) {
$exs->push($ex);
}
}
try {
do_action('w3tc_environment_fix_on_wpadmin_request', $config, $force_all_checks);
} catch (Util_Environment_Exceptions $ex) {
$exs->push($ex);
}
if (count($exs->exceptions()) > 0) {
throw $exs;
}
}
/**
* Returns cache engine instance
*
* @param string $engine
* @param array $config
* @return W3_Cache_Base
*/
static function instance($engine, $config = array())
{
static $instances = array();
// common configuration data
if (!isset($config['blog_id'])) {
$config['blog_id'] = Util_Environment::blog_id();
}
$instance_key = sprintf('%s_%s', $engine, md5(serialize($config)));
if (!isset($instances[$instance_key])) {
switch ($engine) {
case 'apc':
if (function_exists('apcu_store')) {
$instances[$instance_key] = new Cache_Apcu($config);
} else {
if (function_exists('apc_store')) {
$instances[$instance_key] = new Cache_Apc($config);
}
}
break;
case 'eaccelerator':
$instances[$instance_key] = new Cache_Eaccelerator($config);
break;
case 'file':
$instances[$instance_key] = new Cache_File($config);
break;
case 'file_generic':
$instances[$instance_key] = new Cache_File_Generic($config);
break;
case 'memcached':
if (class_exists('\\Memcached')) {
$instances[$instance_key] = new Cache_Memcached($config);
} else {
if (class_exists('\\Memcache')) {
$instances[$instance_key] = new Cache_Memcache($config);
}
}
break;
case 'redis':
$instances[$instance_key] = new Cache_Redis($config);
break;
case 'wincache':
$instances[$instance_key] = new Cache_Wincache($config);
break;
case 'xcache':
$instances[$instance_key] = new Cache_Xcache($config);
break;
default:
trigger_error('Incorrect cache engine ' . $engine, E_USER_WARNING);
$instances[$instance_key] = new Cache_Base($config);
break;
}
if (!isset($instances[$instance_key]) || !$instances[$instance_key]->available()) {
$instances[$instance_key] = new Cache_Base($config);
}
}
return $instances[$instance_key];
}
public static function config_state()
{
if (Util_Environment::blog_id() <= 0) {
return self::config_state_master();
}
static $config_state = null;
if (is_null($config_state)) {
$config_state = new ConfigState(false);
}
return $config_state;
}
public function __construct($blog_id = null)
{
if (!is_null($blog_id)) {
$this->_blog_id = $blog_id;
$this->_is_master = $this->_blog_id == 0;
} else {
if (Util_Environment::is_using_master_config()) {
$this->_blog_id = 0;
} else {
$this->_blog_id = Util_Environment::blog_id();
}
$this->_is_master = Util_Environment::blog_id() == 0;
}
$this->_preview = Util_Environment::is_preview_mode();
$this->load();
}
function cleanup_local()
{
$engine = $this->_config->get_string('pgcache.engine');
switch ($engine) {
case 'file':
$w3_cache_file_cleaner = new Cache_File_Cleaner(array('cache_dir' => Util_Environment::cache_blog_dir('page'), 'clean_timelimit' => $this->_config->get_integer('timelimit.cache_gc')));
$w3_cache_file_cleaner->clean();
break;
case 'file_generic':
if (Util_Environment::blog_id() == 0) {
$flush_dir = W3TC_CACHE_PAGE_ENHANCED_DIR;
} else {
$flush_dir = W3TC_CACHE_PAGE_ENHANCED_DIR . '/' . Util_Environment::host();
}
$w3_cache_file_cleaner_generic = new Cache_File_Cleaner_Generic(array('exclude' => array('.htaccess'), 'cache_dir' => $flush_dir, 'expire' => $this->_config->get_integer('browsercache.html.lifetime'), 'clean_timelimit' => $this->_config->get_integer('timelimit.cache_gc')));
$w3_cache_file_cleaner_generic->clean();
break;
}
}
/**
* Returns minify cache object
*
* @return object
*/
function _get_cache()
{
static $cache = array();
if (!isset($cache[0])) {
switch ($this->_config->get_string('minify.engine')) {
case 'memcached':
$config = array('blog_id' => Util_Environment::blog_id(), 'instance_id' => Util_Environment::instance_id(), 'host' => Util_Environment::host(), 'module' => 'minify', 'servers' => $this->_config->get_array('minify.memcached.servers'), 'persistent' => $this->_config->get_boolean('minify.memcached.persistent'), 'aws_autodiscovery' => $this->_config->get_boolean('minify.memcached.aws_autodiscovery'), 'username' => $this->_config->get_boolean('minify.memcached.username'), 'password' => $this->_config->get_boolean('minify.memcached.password'));
if (class_exists('Memcached')) {
$w3_cache = new Cache_Memcached($config);
} else {
if (class_exists('Memcache')) {
$w3_cache = new Cache_Memcache($config);
}
}
$cache[0] = new \Minify_Cache_W3TCDerived($w3_cache);
break;
case 'redis':
$config = array('blog_id' => Util_Environment::blog_id(), 'instance_id' => Util_Environment::instance_id(), 'host' => Util_Environment::host(), 'module' => 'minify', 'servers' => $this->_config->get_array('minify.redis.servers'), 'persistent' => $this->_config->get_boolean('minify.redis.persistent'), 'dbid' => $this->_config->get_boolean('minify.redis.dbid'), 'password' => $this->_config->get_boolean('minify.redis.password'));
if (class_exists('Memcached')) {
$w3_cache = new Cache_Memcached($config);
} else {
if (class_exists('Memcache')) {
$w3_cache = new Cache_Memcache($config);
}
}
$cache[0] = new \Minify_Cache_W3TCDerived($w3_cache);
break;
case 'apc':
$config = array('blog_id' => Util_Environment::blog_id(), 'instance_id' => Util_Environment::instance_id(), 'host' => Util_Environment::host(), 'module' => 'minify');
if (function_exists('apcu_store')) {
$w3_cache = new Cache_Apcu($config);
} else {
if (function_exists('apc_store')) {
$w3_cache = new Cache_Apc($config);
}
}
$cache[0] = new \Minify_Cache_W3TCDerived($w3_cache);
break;
case 'eaccelerator':
$config = array('blog_id' => Util_Environment::blog_id(), 'instance_id' => Util_Environment::instance_id(), 'host' => Util_Environment::host(), 'module' => 'minify');
$w3_cache = new Cache_Eaccelerator($config);
$cache[0] = new \Minify_Cache_W3TCDerived($w3_cache);
break;
case 'xcache':
$config = array('blog_id' => Util_Environment::blog_id(), 'instance_id' => Util_Environment::instance_id(), 'host' => Util_Environment::host(), 'module' => 'minify');
$w3_cache = new Cache_Xcache($config);
$cache[0] = new \Minify_Cache_W3TCDerived($w3_cache);
break;
case 'wincache':
$config = array('blog_id' => Util_Environment::blog_id(), 'instance_id' => Util_Environment::instance_id(), 'host' => Util_Environment::host(), 'module' => 'minify');
$w3_cache = new Cache_Wincache($config);
$cache[0] = new \Minify_Cache_W3TCDerived($w3_cache);
break;
case 'file':
default:
$cache[0] = new \Minify_Cache_File(Util_Environment::cache_blog_minify_dir(), array('.htaccess', 'index.php', '*.old'), $this->_config->get_boolean('minify.file.locking'), $this->_config->get_integer('timelimit.cache_flush'), Util_Environment::blog_id() == 0 ? W3TC_CACHE_MINIFY_DIR : null);
break;
}
}
return $cache[0];
}
/**
* Convert relative file which is relative to ABSPATH (wp folder on disc) to path uri
*
* @param unknown $file
* @return string
*/
function docroot_filename_to_uri($file)
{
$file = ltrim($file, '/');
// Translate multisite subsite uploads paths
$file = str_replace(basename(WP_CONTENT_DIR) . '/blogs.dir/' . Util_Environment::blog_id() . '/', '', $file);
return $file;
}
/**
* Returns server info
*
* @return array
*/
private function get_server_info()
{
global $wp_version, $wp_db_version, $wpdb;
$wordpress_plugins = get_plugins();
$wordpress_plugins_active = array();
foreach ($wordpress_plugins as $wordpress_plugin_file => $wordpress_plugin) {
if (is_plugin_active($wordpress_plugin_file)) {
$wordpress_plugins_active[$wordpress_plugin_file] = $wordpress_plugin;
}
}
$mysql_version = $wpdb->get_var('SELECT VERSION()');
$mysql_variables_result = (array) $wpdb->get_results('SHOW VARIABLES', ARRAY_N);
$mysql_variables = array();
foreach ($mysql_variables_result as $mysql_variables_row) {
$mysql_variables[$mysql_variables_row[0]] = $mysql_variables_row[1];
}
$server_info = array('w3tc' => array('version' => W3TC_VERSION, 'server' => !empty($_SERVER['SERVER_SOFTWARE']) ? $_SERVER['SERVER_SOFTWARE'] : 'Unknown', 'dir' => W3TC_DIR, 'cache_dir' => W3TC_CACHE_DIR, 'blog_id' => Util_Environment::blog_id(), 'home_domain_root_url' => Util_Environment::home_domain_root_url(), 'home_url_maybe_https' => Util_Environment::home_url_maybe_https(), 'site_path' => Util_Environment::site_path(), 'document_root' => Util_Environment::document_root(), 'site_root' => Util_Environment::site_root(), 'site_url_uri' => Util_Environment::site_url_uri(), 'home_url_host' => Util_Environment::home_url_host(), 'home_url_uri' => Util_Environment::home_url_uri(), 'network_home_url_uri' => Util_Environment::network_home_url_uri(), 'host_port' => Util_Environment::host_port(), 'host' => Util_Environment::host(), 'wp_config_path' => Util_Environment::wp_config_path()), 'wp' => array('version' => $wp_version, 'db_version' => $wp_db_version, 'abspath' => ABSPATH, 'home' => get_option('home'), 'siteurl' => get_option('siteurl'), 'email' => get_option('admin_email'), 'upload_info' => (array) Util_Http::upload_info(), 'theme' => Util_Theme::get_current_theme(), 'wp_cache' => defined('WP_CACHE') && WP_CACHE ? 'true' : 'false', 'plugins' => $wordpress_plugins_active), 'mysql' => array('version' => $mysql_version, 'variables' => $mysql_variables));
return $server_info;
}
/**
* PHP5 style constructor
*/
function __construct()
{
global $_wp_using_ext_object_cache;
$this->_config = Dispatcher::config();
$this->_lifetime = $this->_config->get_integer(array('fragmentcache', 'lifetime'));
$this->_debug = $this->_config->get_boolean(array('fragmentcache', 'debug'));
$this->_caching = $_wp_using_ext_object_cache = $this->_can_cache();
$this->_blog_id = Util_Environment::blog_id();
$this->_core = Dispatcher::component('Extension_FragmentCache_Core');
}
/**
* Exports custom files to CDN
*
* @return array
*/
function get_files_custom()
{
$files = array();
$document_root = Util_Environment::document_root();
$custom_files = $this->_config->get_array('cdn.custom.files');
$custom_files = array_map(array('\\W3TC\\Util_Environment', 'parse_path'), $custom_files);
$site_root = Util_Environment::site_root();
$path = Util_Environment::site_url_uri();
$site_root_dir = str_replace($document_root, '', $site_root);
if (strstr(WP_CONTENT_DIR, Util_Environment::site_root()) === false) {
$site_root = Util_Environment::document_root();
$path = '';
}
$content_path = trim(str_replace(WP_CONTENT_DIR, '', $site_root), '/\\');
foreach ($custom_files as $custom_file) {
if ($custom_file != '') {
$custom_file = Cdn_Util::replace_folder_placeholders($custom_file);
$custom_file = Util_Environment::normalize_file($custom_file);
if (!Util_Environment::is_wpmu()) {
$dir = trim(dirname($custom_file), '/\\');
$rel_path = trim(dirname($custom_file), '/\\');
} else {
$rel_path = $dir = trim(dirname($custom_file), '/\\');
}
if (strpos($dir, '<currentblog>') != false) {
$rel_path = $dir = str_replace('<currentblog>', 'blogs.dir/' . Util_Environment::blog_id(), $dir);
}
if ($dir == '.') {
$rel_path = $dir = '';
}
$mask = basename($custom_file);
$files = array_merge($files, Cdn_Util::search_files($document_root . '/' . $dir, $rel_path, $mask));
}
}
return $files;
}
/**
* 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']) ? $_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: ' . $_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 = $api->publish($this->_topic_arn, $v);
if ($r->status != 200) {
$this->_log("Error: {$r->body->Error->Message}");
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;
}
/**
* Deploys the config file from a preview config file
*
* @param integer $direction +1: preview->production
* -1: production->preview
* @param boolean $remove_source remove source file
*/
private function preview_production_copy($direction = 1)
{
$blog_id = Util_Environment::blog_id();
$preview_filename = Config::util_config_filename($blog_id, true);
$production_filename = Config::util_config_filename($blog_id, false);
if ($direction > 0) {
$src = $preview_filename;
$dest = $production_filename;
} else {
$src = $production_filename;
$dest = $preview_filename;
}
if (!@copy($src, $dest)) {
Util_Activation::throw_on_write_error($dest);
}
}
/**
* Parses path
*
* @param string $path
* @return mixed
*/
public static function parse_path($path)
{
$path = str_replace(array('%BLOG_ID%', '%POST_ID%', '%BLOG_ID%', '%HOST%'), array(isset($GLOBALS['blog_id']) ? (int) $GLOBALS['blog_id'] : 0, isset($GLOBALS['post_id']) ? (int) $GLOBALS['post_id'] : 0, Util_Environment::blog_id(), Util_Environment::host()), $path);
return $path;
}
/**
* PHP5 style constructor
*/
function __construct()
{
global $_wp_using_ext_object_cache;
$this->_config = Dispatcher::config();
$this->_lifetime = $this->_config->get_integer('objectcache.lifetime');
$this->_debug = $this->_config->get_boolean('objectcache.debug');
$this->_caching = $_wp_using_ext_object_cache = $this->_can_cache();
$this->global_groups = $this->_config->get_array('objectcache.groups.global');
$this->nonpersistent_groups = $this->_config->get_array('objectcache.groups.nonpersistent');
$this->_blog_id = Util_Environment::blog_id();
}
/**
* Returns cache object
*
* @return W3_Cache_Base
*/
function _get_cache()
{
static $cache = null;
if (is_null($cache)) {
$engine = $this->_config->get_string('pgcache.engine');
switch ($engine) {
case 'memcached':
$engineConfig = array('servers' => $this->_config->get_array('pgcache.memcached.servers'), 'persistent' => $this->_config->get_boolean('pgcache.memcached.persistent'), 'aws_autodiscovery' => $this->_config->get_boolean('pgcache.memcached.aws_autodiscovery'), 'username' => $this->_config->get_boolean('pgcache.memcached.username'), 'password' => $this->_config->get_boolean('pgcache.memcached.password'));
break;
case 'redis':
$engineConfig = array('servers' => $this->_config->get_array('pgcache.redis.servers'), 'persistent' => $this->_config->get_boolean('pgcache.redis.persistent'), 'dbid' => $this->_config->get_boolean('pgcache.redis.dbid'), 'password' => $this->_config->get_boolean('pgcache.redis.password'));
break;
case 'file':
$engineConfig = array('section' => 'page', 'flush_parent' => Util_Environment::blog_id() == 0, 'locking' => $this->_config->get_boolean('pgcache.file.locking'), 'flush_timelimit' => $this->_config->get_integer('timelimit.cache_flush'));
break;
case 'file_generic':
if (Util_Environment::blog_id() == 0) {
$flush_dir = W3TC_CACHE_PAGE_ENHANCED_DIR;
} else {
$flush_dir = W3TC_CACHE_PAGE_ENHANCED_DIR . '/' . Util_Environment::host();
}
$engineConfig = array('exclude' => array('.htaccess'), 'expire' => $this->_lifetime, 'cache_dir' => W3TC_CACHE_PAGE_ENHANCED_DIR, 'locking' => $this->_config->get_boolean('pgcache.file.locking'), 'flush_timelimit' => $this->_config->get_integer('timelimit.cache_flush'), 'flush_dir' => $flush_dir);
break;
default:
$engineConfig = array();
}
$engineConfig['use_expired_data'] = true;
$engineConfig['module'] = 'pgcache';
$engineConfig['host'] = '';
// host is always put to a key
$engineConfig['instance_id'] = Util_Environment::instance_id();
$cache = Cache::instance($engine, $engineConfig);
}
return $cache;
}
