/**
* Runs plugin
*/
function run()
{
$cdn_engine = $this->_config->get_string('cdn.engine');
if (Cdn_Util::is_engine_fsd($cdn_engine)) {
$this->run_fsd();
return;
}
add_filter('cron_schedules', array($this, 'cron_schedules'));
if (!$this->_config->get_boolean('cdn.debug')) {
add_filter('w3tc_footer_comment', array($this, 'w3tc_footer_comment'));
}
if (!Cdn_Util::is_engine_mirror($cdn_engine)) {
add_action('delete_attachment', array($this, 'delete_attachment'));
add_filter('update_attached_file', array($this, 'update_attached_file'));
add_filter('wp_update_attachment_metadata', array($this, 'update_attachment_metadata'));
add_action('w3_cdn_cron_queue_process', array($this, 'cron_queue_process'));
add_action('w3_cdn_cron_upload', array($this, 'cron_upload'));
add_action('switch_theme', array($this, 'switch_theme'));
add_filter('update_feedback', array($this, 'update_feedback'));
}
add_filter('w3tc_admin_bar_menu', array($this, 'w3tc_admin_bar_menu'));
if (is_admin()) {
add_action('w3tc_config_ui_save-w3tc_cdn', array($this, 'change_canonical_header'), 0, 0);
add_filter('w3tc_module_is_running-cdn', array($this, 'cdn_is_running'));
}
/**
* Start rewrite engine
*/
if ($this->can_cdn()) {
Util_Bus::add_ob_callback('cdn', array($this, 'ob_callback'));
}
if (is_admin() && Cdn_Util::can_purge($cdn_engine)) {
add_filter('media_row_actions', array($this, 'media_row_actions'), 0, 2);
}
}
/**
* Runs plugin
*/
function run()
{
add_filter('w3tc_admin_bar_menu', array($this, 'w3tc_admin_bar_menu'));
if ($this->_config->get_boolean('browsercache.html.w3tc')) {
add_action('send_headers', array($this, 'send_headers'));
}
if (!$this->_config->get_boolean('browsercache.html.etag')) {
add_filter('wp_headers', array($this, 'filter_wp_headers'), 0, 2);
}
if ($this->can_ob()) {
$this->browsercache_rewrite = $this->_config->get_boolean('browsercache.rewrite');
Util_Bus::add_ob_callback('browsercache', array($this, 'ob_callback'));
// modify CDN urls too
add_filter('w3tc_cdn_url', array($this, 'w3tc_cdn_url'), 0, 3);
}
}
/**
* Runs plugin
*/
function run()
{
add_filter('w3tc_config_default_values', array($this, 'w3tc_config_default_values'));
$config = Dispatcher::config();
// remainder only when extension is frontend-active
if (!$config->is_extension_active_frontend('newrelic')) {
return;
}
if ($this->_config->get_string(array('newrelic', 'monitoring_type')) == 'browser') {
Util_Bus::add_ob_callback('newrelic', array($this, 'ob_callback_browser'));
} else {
require_once W3TC_LIB_NEWRELIC_DIR . '/NewRelicWrapper.php';
$this->set_appname();
if (defined('DOING_CRON') && DOING_CRON) {
$this->background_task();
}
Util_Bus::add_ob_callback('newrelic', array($this, 'ob_callback_apm'));
}
add_filter('w3tc_footer_comment', array($this, 'w3tc_footer_comment'));
}
/**
* Runs plugin
*/
function run()
{
add_action('init', array($this, 'init'));
add_filter('cron_schedules', array($this, 'cron_schedules'));
add_filter('w3tc_admin_bar_menu', array($this, 'w3tc_admin_bar_menu'));
if (!$this->_config->get_boolean('minify.debug')) {
add_filter('w3tc_footer_comment', array($this, 'w3tc_footer_comment'));
}
if ($this->_config->get_string('minify.engine') == 'file') {
add_action('w3_minify_cleanup', array($this, 'cleanup'));
}
// usage statistics handling
add_action('w3tc_usage_statistics_of_request', array($this, 'w3tc_usage_statistics_of_request'), 10, 1);
add_filter('w3tc_usage_statistics_metrics', array($this, 'w3tc_usage_statistics_metrics'));
/**
* Start minify
*/
if ($this->can_minify()) {
Util_Bus::add_ob_callback('minify', array($this, 'ob_callback'));
}
}
/**
* Output buffering callback
*
* @param string $buffer
* @return string
*/
function ob_callback($buffer)
{
global $wpdb;
global $w3_late_caching_succeeded;
if ($w3_late_caching_succeeded) {
return $buffer;
}
if (Util_Content::is_database_error($buffer)) {
status_header(503);
} else {
if (Util_Content::can_print_comment($buffer)) {
/**
* Add footer comment
*/
$date = date_i18n('Y-m-d H:i:s');
$host = !empty($_SERVER['SERVER_NAME']) ? $_SERVER['SERVER_NAME'] : 'localhost';
if (Util_Environment::is_preview_mode()) {
$buffer .= "\r\n<!-- W3 Total Cache used in preview mode -->";
}
if ($this->_config->get_string('common.support') != '' || $this->_config->get_boolean('common.tweeted')) {
$buffer .= sprintf("\r\n<!-- Served from: %s @ %s by W3 Total Cache -->", Util_Content::escape_comment($host), $date);
} else {
$strings = array();
$strings = apply_filters('w3tc_footer_comment', $strings);
$buffer .= "\r\n<!-- Performance optimized by W3 Total Cache. Learn more: https://www.w3-edge.com/products/\r\n";
if (count($strings)) {
$buffer .= "\r\n" . Util_Content::escape_comment(implode("\r\n", $strings)) . "\r\n";
}
$buffer .= sprintf("\r\n Served from: %s @ %s by W3 Total Cache -->", Util_Content::escape_comment($host), $date);
}
}
$buffer = Util_Bus::do_ob_callbacks(array('minify', 'newrelic', 'cdn', 'browsercache', 'pagecache'), $buffer);
}
return $buffer;
}
/**
* Do cache logic
*/
function process()
{
/**
* Skip caching for some pages
*/
switch (true) {
case defined('DONOTCACHEPAGE'):
if ($this->_debug) {
self::log('skip processing because of DONOTCACHEPAGE constant');
}
return;
case defined('DOING_AJAX'):
case defined('DOING_CRON'):
case defined('APP_REQUEST'):
case defined('XMLRPC_REQUEST'):
case defined('WP_ADMIN'):
case defined('SHORTINIT') && SHORTINIT:
if ($this->_debug) {
self::log('skip processing because of generic constant');
}
return;
}
/**
* Do page cache logic
*/
if ($this->_debug) {
$this->_time_start = Util_Debug::microtime();
}
$this->_caching = $this->_can_cache();
global $w3_late_init;
if ($this->_debug) {
self::log('start, can_cache: ' . ($this->_caching ? 'true' : 'false'));
}
if ($this->_caching && !$this->_late_caching) {
$this->_cached_data = $this->_extract_cached_page(false);
if ($this->_cached_data) {
if ($this->_late_init) {
$w3_late_init = true;
return;
} else {
$this->process_cached_page_and_exit($this->_cached_data);
// if is passes here - exit is not possible now and
// will happen on init
return;
}
} else {
$this->_late_init = false;
}
} else {
$this->_late_init = false;
}
$w3_late_init = $this->_late_init;
/**
* Start output buffering
*/
Util_Bus::add_ob_callback('pagecache', array($this, 'ob_callback'));
}
