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<?php
/**
* File: Extension_NewRelic_Widget.php
*
* @package W3TC
*/
namespace W3TC;
/**
* Class Extension_NewRelic_Widget
*
* phpcs:disable PSR2.Classes.PropertyDeclaration.Underscore
* phpcs:disable PSR2.Methods.MethodDeclaration.Underscore
* phpcs:disable WordPress.PHP.NoSilencedErrors.Discouraged
* phpcs:disable Generic.CodeAnalysis.UnusedFunctionParameter
*/
class Extension_NewRelic_Widget {
/**
* Config
*
* @var Config
*/
private $_config = null;
/**
* Registers AJAX actions for New Relic widget data.
*
* @return void
*/
public static function w3tc_ajax() {
$o = new Extension_NewRelic_Widget();
add_action( 'w3tc_ajax_newrelic_widgetdata_basic', array( $o, 'w3tc_ajax_newrelic_widgetdata_basic' ) );
add_action( 'w3tc_ajax_newrelic_widgetdata_pageloads', array( $o, 'w3tc_ajax_newrelic_widgetdata_pageloads' ) );
add_action( 'w3tc_ajax_newrelic_widgetdata_webtransactions', array( $o, 'w3tc_ajax_newrelic_widgetdata_webtransactions' ) );
add_action( 'w3tc_ajax_newrelic_widgetdata_dbtimes', array( $o, 'w3tc_ajax_newrelic_widgetdata_dbtimes' ) );
}
/**
* Initializes the admin dashboard for the New Relic widget.
*
* @return void
*/
public static function admin_init_w3tc_dashboard() {
$o = new Extension_NewRelic_Widget();
$o->_config = Dispatcher::config();
add_action( 'w3tc_widget_setup', array( $o, 'wp_dashboard_setup' ), 1000 );
add_action( 'w3tc_network_dashboard_setup', array( $o, 'wp_dashboard_setup' ), 1000 );
$nerser = Dispatcher::component( 'Extension_NewRelic_Service' );
$view_application = $nerser->get_effective_application_id();
$new_relic_configured = ( $o->_config->get_string( array( 'newrelic', 'api_key' ) ) && 0 !== $view_application );
$monitoring_type = $o->_config->get_string( array( 'newrelic', 'monitoring_type' ) );
if ( 'browser' !== $monitoring_type ) {
wp_enqueue_script( 'w3tc-widget-newrelic', plugins_url( 'Extension_NewRelic_Widget_View.js', W3TC_FILE ), array(), W3TC_VERSION, false );
}
wp_enqueue_style( 'w3tc-widget-newrelic', plugins_url( 'Extension_NewRelic_Widget_View.css', W3TC_FILE ), array(), W3TC_VERSION, false );
}
/**
* Sets up the New Relic widget on the WordPress dashboard.
*
* @return void
*/
public function wp_dashboard_setup() {
$nerser = Dispatcher::component( 'Extension_NewRelic_Service' );
$view = '';
$view_application = $nerser->get_effective_application_id();
$new_relic_configured = ( $this->_config->get_string( array( 'newrelic', 'api_key' ) ) && 0 !== $view_application );
if ( $new_relic_configured ) {
$view_vis = sprintf(
'https://rpm.newrelic.com/accounts/%1$d/applications/%2$d',
$nerser->get_account_id(),
$nerser->get_effective_application_id()
);
$view = '<div class="w3tc-widget-text"><a href="' . $view_vis . '">' . __( 'view visualizations', 'w3-total-cache' ) . '</a></div>';
}
Util_Widget::add(
'w3tc_new_relic',
'<div class="w3tc-widget-newrelic-logo"></div>' . $view,
array( $this, 'widget_new_relic' ),
Util_Ui::admin_url( 'admin.php?page=w3tc_general#monitoring' ),
'normal'
);
}
/**
* Displays the New Relic widget content for the admin dashboard.
*
* @param string $widget_id ID of the widget.
* @param array $form_inputs Inputs for the widget form.
*
* @return void
*/
public function widget_new_relic( $widget_id, $form_inputs = array() ) {
$nerser = Dispatcher::component( 'Extension_NewRelic_Service' );
$view_application = $nerser->get_effective_application_id();
$new_relic_configured = ( $this->_config->get_string( array( 'newrelic', 'api_key' ) ) && 0 !== $view_application );
if ( ! $new_relic_configured ) {
include W3TC_DIR . '/Extension_NewRelic_Widget_View_NotConfigured.php';
return;
}
$monitoring_type = $this->_config->get_string( array( 'newrelic', 'monitoring_type' ) );
if ( 'browser' === $monitoring_type ) {
include W3TC_DIR . '/Extension_NewRelic_Widget_View_Browser.php';
} else {
include W3TC_DIR . '/Extension_NewRelic_Widget_View_Apm.php';
}
}
/**
* Handles AJAX request for basic New Relic widget data.
*
* @return void
*
* @throws \Exception If an error occurs while fetching data.
*/
public function w3tc_ajax_newrelic_widgetdata_basic() {
// cache status for some small time.
$response = get_transient( 'w3tc_nr_widgetdata_basic' );
$response = @json_decode( $response, true );
if ( is_array( $response ) && isset( $response['time'] ) &&
$response['time'] >= time() - 60 ) {
echo wp_json_encode( $response );
return;
}
$service = Dispatcher::component( 'Extension_NewRelic_Service' );
$verify_running = $service->verify_running();
$response = array(
'time' => time(),
);
if ( ! is_array( $verify_running ) ) {
$response['php_agent'] = '<span class="w3tc-enabled">enabled</span>';
} else {
$response['php_agent'] = '<span class="w3tc-disabled">disabled</span>';
}
try {
$subscription = $service->get_subscription();
$response['subscription_level'] = $subscription['product-name'];
$summary = $service->get_application_summary();
$this->_fill( $response, 'apdex', $summary, 'Apdex' );
$this->_fill( $response, 'application_busy', $summary, 'Application Busy' );
$this->_fill( $response, 'error_rate', $summary, 'Error Rate' );
$this->_fill( $response, 'throughput', $summary, 'Throughput' );
$this->_fill( $response, 'errors', $summary, 'Errors' );
$this->_fill( $response, 'response_time', $summary, 'Response Time' );
$this->_fill( $response, 'db', $summary, 'DB' );
$this->_fill( $response, 'cpu', $summary, 'CPU' );
$this->_fill( $response, 'memory', $summary, 'Memory' );
$can_use_metrics = $service->can_get_metrics();
if ( $can_use_metrics ) {
$dashboard_metrics = $service->get_dashboard_metrics();
$this->_fill_avg( $response, 'enduser', $dashboard_metrics, 'EndUser' );
$this->_fill_avg( $response, 'webtransaction', $dashboard_metrics, 'WebTransaction' );
$this->_fill_avg( $response, 'database', $dashboard_metrics, 'Database' );
}
// load data for notification here too.
$pl = $service->get_frontend_response_time();
update_option( 'w3tc_nr_frontend_response_time', $pl );
} catch ( \Exception $ex ) { // phpcs:ignore Generic.CodeAnalysis.EmptyStatement.DetectedCatch
}
set_transient( 'w3tc_nr_widgetdata_basic', wp_json_encode( $response ), 60 );
echo wp_json_encode( $response );
}
/**
* Handles AJAX request for page load data in the New Relic widget.
*
* @return void
*/
public function w3tc_ajax_newrelic_widgetdata_pageloads() {
$response = array(
'content' => '<div class="w3tcnr_topfive_message">No data available</div>',
);
try {
$service = Dispatcher::component( 'Extension_NewRelic_Service' );
$can_use_metrics = $service->can_get_metrics();
if ( $can_use_metrics ) {
$metric_slow_pages = $service->get_slowest_page_load();
if ( count( $metric_slow_pages ) > 0 ) {
$s = '<table class="w3tcnr_slowest">';
foreach ( $metric_slow_pages as $transaction => $time ) {
$s .= '<tr><td><span>' . $transaction . '</span></td><td>' . Util_Ui::secs_to_time( $time ) . '</td></tr>';
}
$s .= '</table>';
$response['content'] = $s;
}
}
} catch ( \Exception $e ) {
$response['content'] = '<div class="w3tcnr_topfive_message">Error occurred</div>';
}
echo wp_json_encode( $response );
}
/**
* Handles AJAX request for web transactions data in the New Relic widget.
*
* @return void
*/
public function w3tc_ajax_newrelic_widgetdata_webtransactions() {
$response = array(
'content' => '<div class="w3tcnr_topfive_message">No data available</div>',
);
try {
$service = Dispatcher::component( 'Extension_NewRelic_Service' );
$can_use_metrics = $service->can_get_metrics();
if ( $can_use_metrics ) {
$metric_slow = $service->get_slowest_webtransactions();
if ( count( $metric_slow ) > 0 ) {
$s = '<table class="w3tcnr_slowest">';
foreach ( $metric_slow as $transaction => $time ) {
$s .= '<tr><td><span>' . $transaction . '</span></td><td>' . Util_Ui::secs_to_time( $time ) . '</td></tr>';
}
$s .= '</table>';
$response['content'] = $s;
}
}
} catch ( \Exception $e ) {
$response['content'] = '<div class="w3tcnr_topfive_message">Error occurred</div>';
}
echo wp_json_encode( $response );
}
/**
* Handles AJAX request for database times data in the New Relic widget.
*
* @return void
*/
public function w3tc_ajax_newrelic_widgetdata_dbtimes() {
$response = array(
'content' => '<div class="w3tcnr_topfive_message">No data available</div>',
);
try {
$service = Dispatcher::component( 'Extension_NewRelic_Service' );
$can_use_metrics = $service->can_get_metrics();
if ( $can_use_metrics ) {
$metric_slow = $service->get_slowest_database();
if ( count( $metric_slow ) > 0 ) {
$s = '<table class="w3tcnr_slowest">';
foreach ( $metric_slow as $transaction => $time ) {
$s .= '<tr><td><span>' . $transaction . '</span></td><td>' . Util_Ui::secs_to_time( $time ) . '</td></tr>';
}
$s .= '</table>';
$response['content'] = $s;
}
}
} catch ( \Exception $e ) {
$response['content'] = '<div class="w3tcnr_topfive_message">Error occurred</div>';
}
echo wp_json_encode( $response );
}
/**
* Fills the response array with specific data from the summary.
*
* @param array $response The response array to be populated.
* @param string $response_key The key for the response data.
* @param array $summary The summary data array.
* @param string $summary_key The key for the summary data.
*
* @return void
*/
private function _fill( &$response, $response_key, $summary, $summary_key ) {
if ( isset( $summary[ $summary_key ] ) ) {
$response[ $response_key ] = $summary[ $summary_key ];
}
}
/**
* Fills the response array with average data from the metrics.
*
* @param array $response The response array to be populated.
* @param string $response_key The key for the response data.
* @param array $metrics The metrics data array.
* @param string $metric_key The key for the metric data.
*
* @return void
*/
private function _fill_avg( &$response, $response_key, $metrics, $metric_key ) {
if ( ! isset( $metrics[ $metric_key ] ) ) {
return;
}
$data = $metrics[ $metric_key ];
$response[ $response_key ] = Util_Ui::secs_to_time( array_shift( $data[0] )->average_response_time );
}
}