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<?php
namespace WP_Rocket\Buffer;
/**
* Configuration class for WP Rocket cache
*
* @since 3.3
* @author Remy Perona
*/
class Config {
use \WP_Rocket\Traits\Memoize;
/**
* Path to the directory containing the config files.
*
* @var string
* @since 3.3
* @access private
* @author Grégory Viguier
*/
private static $config_dir_path;
/**
* Values of $_SERVER to use for some tests.
*
* @var array
* @since 3.3
* @access private
* @author Grégory Viguier
*/
private static $server;
/**
* Constructor
*
* @param array $args {
* An array of arguments.
*
* @type string $config_dir_path WP Rocket config directory path.
* @type array $server Values of $_SERVER to use for the tests. Default is $_SERVER.
* }
*/
public function __construct( $args ) {
if ( isset( self::$config_dir_path ) ) {
// Make sure to keep the same values all along.
return;
}
if ( ! isset( $args['server'] ) && ! empty( $_SERVER ) && is_array( $_SERVER ) ) {
$args['server'] = $_SERVER;
}
self::$config_dir_path = rtrim( $args['config_dir_path'], '/' ) . '/';
self::$server = ! empty( $args['server'] ) && is_array( $args['server'] ) ? $args['server'] : [];
}
/**
* Get a $_SERVER entry.
*
* @since 3.3
* @access public
* @author Grégory Viguier
*
* @param string $entry_name Name of the entry.
* @param mixed $default Value to return if the entry is not set.
* @return mixed
*/
public function get_server_input( $entry_name, $default = null ) {
if ( ! isset( self::$server[ $entry_name ] ) ) {
return $default;
}
return self::$server[ $entry_name ];
}
/**
* Get the `server` property.
*
* @since 3.3
* @access public
* @author Grégory Viguier
*
* @return array
*/
public function get_server() {
return self::$server;
}
/**
* Get a specific config/option value.
*
* @since 3.3
* @access public
* @author Grégory Viguier
*
* @param string $config_name Name of a specific config/option.
* @return mixed
*/
public function get_config( $config_name ) {
$config = $this->get_configs();
return isset( $config[ $config_name ] ) ? $config[ $config_name ] : null;
}
/**
* Get the whole current configuration.
*
* @since 3.3
* @access public
* @author Grégory Viguier
*
* @return array|bool An array containing the configuration. False on failure.
*/
public function get_configs() {
if ( self::is_memoized( __FUNCTION__ ) ) {
return self::get_memoized( __FUNCTION__ );
}
$config_file_path = $this->get_config_file_path();
if ( ! $config_file_path['success'] ) {
return self::memoize( __FUNCTION__, [], false );
}
include $config_file_path['path'];
$config = [
'cookie_hash' => '',
'logged_in_cookie' => '',
'common_cache_logged_users' => 0,
'cache_mobile_files_tablet' => 'desktop',
'cache_ssl' => 0,
'cache_mobile' => 0,
'do_caching_mobile_files' => 0,
'secret_cache_key' => '',
'cache_reject_uri' => '',
'cache_query_strings' => [],
'cache_reject_cookies' => '',
'cache_reject_ua' => '',
'cache_mandatory_cookies' => '',
'cache_dynamic_cookies' => [],
'url_no_dots' => 0,
];
foreach ( $config as $entry_name => $entry_value ) {
$var_name = 'rocket_' . $entry_name;
if ( isset( $$var_name ) ) {
$config[ $entry_name ] = $$var_name;
}
}
return self::memoize( __FUNCTION__, [], $config );
}
/**
* Get the host, to use for config and cache file path.
*
* @since 3.3
* @access public
* @author Grégory Viguier
*
* @return string
*/
public function get_host() {
if ( self::is_memoized( __FUNCTION__ ) ) {
return self::get_memoized( __FUNCTION__ );
}
$host = $this->get_server_input( 'HTTP_HOST', (string) time() );
$host = preg_replace( '/:\d+$/', '', $host );
$host = trim( strtolower( $host ), '.' );
return self::memoize( __FUNCTION__, [], rawurlencode( $host ) );
}
/**
* Get the path to an existing config file.
*
* @since 3.3
* @access protected
* @author Grégory Viguier
*
* @return string|bool The path to the file. False if no file is found.
*/
public function get_config_file_path() {
if ( self::is_memoized( __FUNCTION__ ) ) {
return self::get_memoized( __FUNCTION__ );
}
$config_dir_real_path = realpath( self::$config_dir_path ) . DIRECTORY_SEPARATOR;
$host = $this->get_host();
if ( realpath( self::$config_dir_path . $host . '.php' ) && 0 === stripos( realpath( self::$config_dir_path . $host . '.php' ), $config_dir_real_path ) ) {
$config_file_path = self::$config_dir_path . $host . '.php';
return self::memoize(
__FUNCTION__,
[],
[
'success' => true,
'path' => $config_file_path,
]
);
}
$path = str_replace( '\\', '/', strtok( $this->get_server_input( 'REQUEST_URI', '' ), '?' ) );
$path = preg_replace( '|(?<=.)/+|', '/', $path );
$path = explode( '%2F', preg_replace( '/^(?:%2F)*(.*?)(?:%2F)*$/', '$1', rawurlencode( $path ) ) );
foreach ( $path as $p ) {
static $dir;
if ( realpath( self::$config_dir_path . $host . '.' . $p . '.php' ) && 0 === stripos( realpath( self::$config_dir_path . $host . '.' . $p . '.php' ), $config_dir_real_path ) ) {
$config_file_path = self::$config_dir_path . $host . '.' . $p . '.php';
return self::memoize(
__FUNCTION__,
[],
[
'success' => true,
'path' => $config_file_path,
]
);
}
if ( realpath( self::$config_dir_path . $host . '.' . $dir . $p . '.php' ) && 0 === stripos( realpath( self::$config_dir_path . $host . '.' . $dir . $p . '.php' ), $config_dir_real_path ) ) {
$config_file_path = self::$config_dir_path . $host . '.' . $dir . $p . '.php';
return self::memoize(
__FUNCTION__,
[],
[
'success' => true,
'path' => $config_file_path,
]
);
}
$dir .= $p . '.';
}
return self::memoize(
__FUNCTION__,
[],
[
'success' => false,
'path' => self::$config_dir_path . $host . implode( '/', $path ) . '.php',
]
);
}
/** ----------------------------------------------------------------------------------------- */
/** SPECIFIC CONFIG GETTERS ================================================================= */
/** ----------------------------------------------------------------------------------------- */
/**
* Get rejected cookies as a regex pattern.
* `#` is used as pattern delimiter.
*
* @since 3.3
* @access protected
* @author Grégory Viguier
*
* @return string
*/
public function get_rejected_cookies() {
$rejected_cookies = $this->get_config( 'cache_reject_cookies' );
if ( '' === $rejected_cookies ) {
return $rejected_cookies;
}
return '#' . $rejected_cookies . '#';
}
/**
* Get mandatory cookies as a regex pattern.
* `#` is used as pattern delimiter.
*
* @since 3.3
* @access protected
* @author Grégory Viguier
*
* @return string
*/
public function get_mandatory_cookies() {
$mandatory_cookies = $this->get_config( 'cache_mandatory_cookies' );
if ( '' === $mandatory_cookies ) {
return $mandatory_cookies;
}
return '#' . $mandatory_cookies . '#';
}
}