installed plugin W3 Total Cache version 2.3.2

wp-content/plugins/w3-total-cache/Extension_NewRelic_Plugin.php

@@ -0,0 +1,221 @@
+<?php
+namespace W3TC;
+
+
+
+class Extension_NewRelic_Plugin {
+
+	/**
+	 * New Relic reject reason
+	 *
+	 * @var string
+	 */
+	var $newrelic_reject_reason = '';
+
+	/**
+	 * Config
+	 */
+	private $_config = null;
+
+	function __construct() {
+		$this->_config = Dispatcher::config();
+	}
+
+	/**
+	 * 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'
+			) );
+	}
+
+	public function w3tc_config_default_values( $default_values ) {
+		$default_values['newrelic'] = array(
+			'monitoring_type' => 'apm',
+			'accept.logged_roles' => true,
+			'accept.roles' => array( 'contributor' ),
+			'use_php_function' => true,
+			'cache_time' => 5,
+			'include_rum' => true
+		);
+
+		return $default_values;
+	}
+
+	function ob_callback_browser( $buffer ) {
+		$core = Dispatcher::component( 'Extension_NewRelic_Core' );
+		$app = $core->get_effective_browser_application();
+		if ( isset( $app['loader_script'] ) && $this->_can_add_tracker_script( $buffer ) ) {
+			$buffer = preg_replace( '~<head(\s+[^>]*)*>~Ui',
+				'\\0' . $app['loader_script'], $buffer, 1 );
+		}
+
+		$buffer = str_replace('{w3tc_newrelic_reject_reason}',
+			( $this->newrelic_reject_reason != '' ? sprintf( ' (%s)', $this->newrelic_reject_reason )
+				: '' ),
+			$buffer );
+
+		return $buffer;
+	}
+
+	function ob_callback_apm( $buffer ) {
+		if ( !$this->_can_add_tracker_script( $buffer ) ) {
+			$this->disable_auto_rum();
+		} else {
+			if ( $this->_config->get_boolean( array( 'newrelic', 'include_rum' ) ) ) {
+				$buffer = preg_replace( '~<head(\s+[^>]*)*>~Ui', '\\0' . \NewRelicWrapper::get_browser_timing_header(), $buffer, 1 );
+				$buffer = preg_replace( '~<\\/body>~', \NewRelicWrapper::get_browser_timing_footer() . '\\0', $buffer, 1 );
+			}
+		}
+
+		$buffer = str_replace('{w3tc_newrelic_reject_reason}',
+			( $this->newrelic_reject_reason != '' ? sprintf( ' (%s)', $this->newrelic_reject_reason )
+				: '' ),
+			$buffer );
+
+		return $buffer;
+	}
+
+	/**
+	 * Mark current transaction as an background job in New Relic.
+	 */
+	function background_task() {
+		\NewRelicWrapper::mark_as_background_job();
+	}
+
+	/**
+	 * Disable auto rum for current transaction.
+	 */
+	function disable_auto_rum() {
+		\NewRelicWrapper::disable_auto_rum();
+	}
+
+	function _can_add_tracker_script( $buffer ) {
+		//
+		$v = '';
+		if ( preg_match('~^\s*<\?xml[^>]*>\s*<xsl:stylesheet~', $buffer, $v ) ) {
+			$this->newrelic_reject_reason = __( 'XSL not tracked', 'w3-total-cache' );
+			return false;
+		}
+
+		$reject_reason = apply_filters( 'w3tc_newrelic_should_disable_auto_rum', null );
+		if ( !empty( $reject_reason ) ) {
+			$this->newrelic_reject_reason =
+				__( 'rejected by filter: ', 'w3-total-cache' ) . $reject_reason;
+			return false;
+		}
+
+
+		/**
+		 * Disable for AJAX so its not messed up
+		 */
+		if ( defined( 'DOING_AJAX' ) && DOING_AJAX ) {
+			$this->newrelic_reject_reason = __( 'DOING_AJAX constant is defined', 'w3-total-cache' );
+
+			return false;
+		}
+
+
+		/**
+		 * Check for DONOTAUTORUM constant
+		 */
+		if ( defined( 'DONOTAUTORUM' ) && DONOTAUTORUM ) {
+			$this->newrelic_reject_reason = __( 'DONOTAUTORUM constant is defined', 'w3-total-cache' );
+
+			return false;
+		}
+
+		/**
+		 * Check logged users roles
+		 */
+		if ( $this->_config->get_boolean( array( 'newrelic', 'accept.logged_roles' ) ) &&
+			$this->_check_logged_in_role_not_allowed() ) {
+			$this->newrelic_reject_reason = __( 'logged in role is rejected',
+				'w3-total-cache' );
+
+			return false;
+		}
+
+		return true;
+	}
+
+	/**
+	 * Check if logged in user role is allowed to use New Relic Auto RUM
+	 *
+	 * @return boolean
+	 */
+	private function _check_logged_in_role_not_allowed() {
+		$current_user = wp_get_current_user();
+
+		if ( !is_user_logged_in() )
+			return false;
+
+		$roles = $this->_config->get_array( array( 'newrelic', 'accept.roles' ) );
+
+		if ( empty( $roles ) || empty( $current_user->roles ) ||
+			!is_array( $current_user->roles ) )
+			return true;
+
+		foreach ( $current_user->roles as $role ) {
+			if ( in_array( $role, $roles ) )
+				return false;
+		}
+
+		return true;
+	}
+
+	public function set_appname() {
+		static $appname_set;
+		if ( !$appname_set && ( $this->_config->get_boolean( array( 'newrelic', 'use_php_function' ) ) || Util_Environment::is_wpmu() ) ) {
+			$appname_set = true;
+			$service = Dispatcher::component( 'Extension_NewRelic_Service' );
+			$appname = $service->get_effective_appname();
+
+			$enable_xmit = $this->_config->get_boolean( array( 'newrelic', 'enable_xmit' ) );
+			\NewRelicWrapper::set_appname( $appname, '', $enable_xmit );
+		}
+	}
+
+	public function w3tc_footer_comment( $strings ) {
+		$strings[] = sprintf(
+			__( "Application Monitoring using New Relic%s", 'w3-total-cache' ),
+			'{w3tc_newrelic_reject_reason}' );
+
+		return $strings;
+	}
+}
+
+
+
+$p = new Extension_NewRelic_Plugin();
+$p->run();
+
+if ( is_admin() ) {
+	$p = new Extension_NewRelic_Plugin_Admin();
+	$p->run();
+}