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<?php
namespace WP_Rocket\Logger;
use Monolog\Logger as Monologger;
use Monolog\Registry;
use Monolog\Processor\IntrospectionProcessor;
use Monolog\Handler\StreamHandler as MonoStreamHandler;
use WP_Rocket\Logger\HTML_Formatter as HtmlFormatter;
use WP_Rocket\Logger\Stream_Handler as StreamHandler;
defined( 'ABSPATH' ) || die( 'Cheatin’ uh?' );
/**
* Class used to log events.
*
* @since 3.1.4
* @since 3.2 Changed namespace from \WP_Rocket to \WP_Rocket\Logger.
* @author Grégory Viguier
*/
class Logger {
/**
* Logger name.
*
* @var string
* @since 3.1.4
* @author Grégory Viguier
*/
const LOGGER_NAME = 'wp_rocket';
/**
* Name of the logs file.
*
* @var string
* @since 3.1.4
* @author Grégory Viguier
*/
const LOG_FILE_NAME = 'wp-rocket-debug.log';
/**
* A unique ID given to the current thread.
*
* @var string
* @since 3.3
* @access private
* @author Grégory Viguier
*/
private static $thread_id;
/** ----------------------------------------------------------------------------------------- */
/** LOG ===================================================================================== */
/** ----------------------------------------------------------------------------------------- */
/**
* Adds a log record at the DEBUG level.
*
* @since 3.1.4
* @access public
* @author Grégory Viguier
*
* @param string $message The log message.
* @param array $context The log context.
* @return bool|null Whether the record has been processed.
*/
public static function debug( $message, array $context = array() ) {
return static::debug_enabled() ? static::get_logger()->debug( $message, $context ) : null;
}
/**
* Adds a log record at the INFO level.
*
* @since 3.1.4
* @access public
* @author Grégory Viguier
*
* @param string $message The log message.
* @param array $context The log context.
* @return bool|null Whether the record has been processed.
*/
public static function info( $message, array $context = array() ) {
return static::debug_enabled() ? static::get_logger()->info( $message, $context ) : null;
}
/**
* Adds a log record at the NOTICE level.
*
* @since 3.1.4
* @access public
* @author Grégory Viguier
*
* @param string $message The log message.
* @param array $context The log context.
* @return bool|null Whether the record has been processed.
*/
public static function notice( $message, array $context = array() ) {
return static::debug_enabled() ? static::get_logger()->notice( $message, $context ) : null;
}
/**
* Adds a log record at the WARNING level.
*
* @since 3.1.4
* @access public
* @author Grégory Viguier
*
* @param string $message The log message.
* @param array $context The log context.
* @return bool|null Whether the record has been processed.
*/
public static function warning( $message, array $context = array() ) {
return static::debug_enabled() ? static::get_logger()->warning( $message, $context ) : null;
}
/**
* Adds a log record at the ERROR level.
*
* @since 3.1.4
* @access public
* @author Grégory Viguier
*
* @param string $message The log message.
* @param array $context The log context.
* @return bool|null Whether the record has been processed.
*/
public static function error( $message, array $context = array() ) {
return static::debug_enabled() ? static::get_logger()->error( $message, $context ) : null;
}
/**
* Adds a log record at the CRITICAL level.
*
* @since 3.1.4
* @access public
* @author Grégory Viguier
*
* @param string $message The log message.
* @param array $context The log context.
* @return bool|null Whether the record has been processed.
*/
public static function critical( $message, array $context = array() ) {
return static::debug_enabled() ? static::get_logger()->critical( $message, $context ) : null;
}
/**
* Adds a log record at the ALERT level.
*
* @since 3.1.4
* @access public
* @author Grégory Viguier
*
* @param string $message The log message.
* @param array $context The log context.
* @return bool|null Whether the record has been processed.
*/
public static function alert( $message, array $context = array() ) {
return static::debug_enabled() ? static::get_logger()->alert( $message, $context ) : null;
}
/**
* Adds a log record at the EMERGENCY level.
*
* @since 3.1.4
* @access public
* @author Grégory Viguier
*
* @param string $message The log message.
* @param array $context The log context.
* @return bool|null Whether the record has been processed.
*/
public static function emergency( $message, array $context = array() ) {
return static::debug_enabled() ? static::get_logger()->emergency( $message, $context ) : null;
}
/**
* Get the logger instance.
*
* @since 3.1.4
* @access public
* @author Grégory Viguier
*
* @return Logger A Logger instance.
*/
public static function get_logger() {
$logger_name = static::LOGGER_NAME;
$log_level = Monologger::DEBUG;
if ( Registry::hasLogger( $logger_name ) ) {
return Registry::$logger_name();
}
/**
* File handler.
* HTML formatter is used.
*/
$handler = new StreamHandler( static::get_log_file_path(), $log_level );
$formatter = new HtmlFormatter();
$handler->setFormatter( $formatter );
/**
* Thanks to the processors, add data to each log:
* - `debug_backtrace()` (exclude this class and Abstract_Buffer).
*/
$trace_processor = new IntrospectionProcessor( $log_level, [ get_called_class(), 'Abstract_Buffer' ] );
// Create the logger.
$logger = new Monologger( $logger_name, [ $handler ], [ $trace_processor ] );
// Store the logger.
Registry::addLogger( $logger );
return $logger;
}
/** ----------------------------------------------------------------------------------------- */
/** LOG FILE ================================================================================ */
/** ----------------------------------------------------------------------------------------- */
/**
* Get the path to the log file.
*
* @since 3.1.4
* @access public
* @author Grégory Viguier
*
* @return string
*/
public static function get_log_file_path() {
if ( defined( 'WP_ROCKET_DEBUG_LOG_FILE' ) && WP_ROCKET_DEBUG_LOG_FILE && is_string( WP_ROCKET_DEBUG_LOG_FILE ) ) {
// Make sure the file uses a ".log" extension.
return preg_replace( '/\.[^.]*$/', '', WP_ROCKET_DEBUG_LOG_FILE ) . '.log';
}
return WP_CONTENT_DIR . '/wp-rocket-config/' . static::LOG_FILE_NAME;
}
/**
* Get the log file contents.
*
* @since 3.1.4
* @access public
* @author Grégory Viguier
*
* @return string|object The file contents on success. A WP_Error object on failure.
*/
public static function get_log_file_contents() {
$filesystem = \rocket_direct_filesystem();
$file_path = static::get_log_file_path();
if ( ! $filesystem->exists( $file_path ) ) {
return new \WP_Error( 'no_file', __( 'The log file does not exist.', 'rocket' ) );
}
$contents = $filesystem->get_contents( $file_path );
if ( false === $contents ) {
return new \WP_Error( 'file_not_read', __( 'The log file could not be read.', 'rocket' ) );
}
return $contents;
}
/**
* Get the log file size and number of entries.
*
* @since 3.1.4
* @access public
* @author Grégory Viguier
*
* @return array|object An array of statistics on success. A WP_Error object on failure.
*/
public static function get_log_file_stats() {
$formatter = static::get_stream_formatter();
if ( ! $formatter ) {
return new \WP_Error( 'no_stream_formatter', __( 'The logs are not saved into a file.', 'rocket' ) );
}
$filesystem = \rocket_direct_filesystem();
$file_path = static::get_log_file_path();
if ( ! $filesystem->exists( $file_path ) ) {
return new \WP_Error( 'no_file', __( 'The log file does not exist.', 'rocket' ) );
}
$contents = $filesystem->get_contents( $file_path );
if ( false === $contents ) {
return new \WP_Error( 'file_not_read', __( 'The log file could not be read.', 'rocket' ) );
}
if ( $formatter instanceof HtmlFormatter ) {
$entries = preg_split( '@<h1 @', $contents );
} elseif ( $formatter instanceof LineFormatter ) {
$entries = preg_split( '@^\[\d{4,}-\d{2,}-\d{2,} \d{2,}:\d{2,}:\d{2,}] @m', $contents );
} else {
$entries = 0;
}
$entries = $entries ? number_format_i18n( count( $entries ) ) : '0';
$bytes = $filesystem->size( $file_path );
$decimals = $bytes > pow( 1024, 3 ) ? 1 : 0;
$bytes = @size_format( $bytes, $decimals );
$bytes = str_replace( ' ', 'Â ', $bytes ); // Non-breaking space character.
return compact( 'entries', 'bytes' );
}
/**
* Get the log file extension related to the formatter in use. This can be used when the file is downloaded.
*
* @since 3.1.4
* @access public
* @author Grégory Viguier
*
* @return string The corresponding file extension with the heading dot.
*/
public static function get_log_file_extension() {
$formatter = static::get_stream_formatter();
if ( ! $formatter ) {
return '.log';
}
if ( $formatter instanceof HtmlFormatter ) {
return '.html';
}
if ( $formatter instanceof LineFormatter ) {
return '.txt';
}
return '.log';
}
/**
* Delete the log file.
*
* @since 3.1.4
* @access public
* @author Grégory Viguier
*
* @return bool True on success. False on failure.
*/
public static function delete_log_file() {
$filesystem = \rocket_direct_filesystem();
$file_path = static::get_log_file_path();
if ( ! $filesystem->exists( $file_path ) ) {
return true;
}
$filesystem->put_contents( $file_path, '' );
$filesystem->delete( $file_path, false, 'f' );
return ! $filesystem->exists( $file_path );
}
/**
* Get the handler used for the log file.
*
* @since 3.2
* @access public
* @author Grégory Viguier
*
* @return object|bool The formatter object on success. False on failure.
*/
public static function get_stream_handler() {
$handlers = static::get_logger()->getHandlers();
if ( ! $handlers ) {
return false;
}
foreach ( $handlers as $_handler ) {
if ( $_handler instanceof MonoStreamHandler ) {
$handler = $_handler;
break;
}
}
if ( empty( $handler ) ) {
return false;
}
return $handler;
}
/**
* Get the formatter used for the log file.
*
* @since 3.1.4
* @access public
* @author Grégory Viguier
*
* @return object|bool The formatter object on success. False on failure.
*/
public static function get_stream_formatter() {
$handler = static::get_stream_handler();
if ( empty( $handler ) ) {
return false;
}
return $handler->getFormatter();
}
/** ----------------------------------------------------------------------------------------- */
/** CONSTANT ================================================================================ */
/** ----------------------------------------------------------------------------------------- */
/**
* Tell if debug is enabled.
*
* @since 3.1.4
* @access public
* @author Grégory Viguier
*
* @return bool
*/
public static function debug_enabled() {
return defined( 'WP_ROCKET_DEBUG' ) && WP_ROCKET_DEBUG;
}
/**
* Enable debug mode by adding a constant in the `wp-config.php` file.
*
* @since 3.1.4
* @access public
* @author Grégory Viguier
*/
public static function enable_debug() {
static::define_debug( true );
}
/**
* Disable debug mode by removing the constant in the `wp-config.php` file.
*
* @since 3.1.4
* @access public
* @author Grégory Viguier
*/
public static function disable_debug() {
static::define_debug( false );
}
/**
* Enable or disable debug mode by adding or removing a constant in the `wp-config.php` file.
*
* @since 3.1.4
* @access public
* @author Grégory Viguier
*
* @param bool $enable True to enable debug, false to disable.
*/
public static function define_debug( $enable ) {
if ( $enable && static::debug_enabled() ) {
// Debug is already enabled.
return;
}
if ( ! $enable && ! static::debug_enabled() ) {
// Debug is already disabled.
return;
}
// Get the path to the file.
$file_path = \rocket_find_wpconfig_path();
if ( ! $file_path ) {
// Couldn't get the path to the file.
return;
}
// Get the content of the file.
$filesystem = \rocket_direct_filesystem();
$content = $filesystem->get_contents( $file_path );
if ( false === $content ) {
// Cound't get the content of the file.
return;
}
// Remove previous value.
$placeholder = '## WP_ROCKET_DEBUG placeholder ##';
$content = preg_replace( '@^[\t ]*define\s*\(\s*["\']WP_ROCKET_DEBUG["\'].*$@miU', $placeholder, $content );
$content = preg_replace( "@\n$placeholder@", '', $content );
if ( $enable ) {
// Add the constant.
$define = "define( 'WP_ROCKET_DEBUG', true ); // Added by WP Rocket.\r\n";
$content = preg_replace( '@<\?php\s*@i', "<?php\n$define", $content, 1 );
}
// Save the file.
$chmod = rocket_get_filesystem_perms( 'file' );
$filesystem->put_contents( $file_path, $content, $chmod );
}
/** ----------------------------------------------------------------------------------------- */
/** TOOLS =================================================================================== */
/** ----------------------------------------------------------------------------------------- */
/**
* Get the thread identifier.
*
* @since 3.3
* @access public
* @author Grégory Viguier
*
* @return string
*/
public static function get_thread_id() {
if ( ! isset( self::$thread_id ) ) {
self::$thread_id = uniqid( '', true );
}
return self::$thread_id;
}
/**
* Remove cookies related to WP auth.
*
* @since 3.1.4
* @access public
* @author Grégory Viguier
*
* @param array $cookies An array of cookies.
* @return array
*/
public static function remove_auth_cookies( $cookies = [] ) {
if ( ! $cookies || ! is_array( $cookies ) ) {
$cookies = $_COOKIE;
}
unset( $cookies['wordpress_test_cookie'] );
if ( ! $cookies ) {
return [];
}
$pattern = strtolower( '@^WordPress(?:user|pass|_sec|_logged_in)?_@' ); // Trolling PHPCS.
foreach ( $cookies as $cookie_name => $value ) {
if ( preg_match( $pattern, $cookie_name ) ) {
$cookies[ $cookie_name ] = 'Value removed by WP Rocket.';
}
}
return $cookies;
}
}