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Edit File : class-wp-recovery-mode.php \| Size : 11.18 KB
<?php /** * Error Protection API: WP_Recovery_Mode class * * @package WordPress * @since 5.2.0 / /* * Core class used to implement Recovery Mode. * * @since 5.2.0 / #[AllowDynamicProperties] class WP_Recovery_Mode { const EXIT_ACTION = 'exit_recovery_mode'; /* * Service to handle cookies. * * @since 5.2.0 * @var WP_Recovery_Mode_Cookie_Service / private $cookie_service; /* * Service to generate a recovery mode key. * * @since 5.2.0 * @var WP_Recovery_Mode_Key_Service / private $key_service; /* * Service to generate and validate recovery mode links. * * @since 5.2.0 * @var WP_Recovery_Mode_Link_Service / private $link_service; /* * Service to handle sending an email with a recovery mode link. * * @since 5.2.0 * @var WP_Recovery_Mode_Email_Service / private $email_service; /* * Is recovery mode initialized. * * @since 5.2.0 * @var bool / private $is_initialized = false; /* * Is recovery mode active in this session. * * @since 5.2.0 * @var bool / private $is_active = false; /* * Get an ID representing the current recovery mode session. * * @since 5.2.0 * @var string / private $session_id = ''; /* * WP_Recovery_Mode constructor. * * @since 5.2.0 / public function __construct() { $this->cookie_service = new WP_Recovery_Mode_Cookie_Service(); $this->key_service = new WP_Recovery_Mode_Key_Service(); $this->link_service = new WP_Recovery_Mode_Link_Service( $this->cookie_service, $this->key_service ); $this->email_service = new WP_Recovery_Mode_Email_Service( $this->link_service ); } /* * Initialize recovery mode for the current request. * * @since 5.2.0 / public function initialize() { $this->is_initialized = true; add_action( 'wp_logout', array( $this, 'exit_recovery_mode' ) ); add_action( 'login_form_' . self::EXIT_ACTION, array( $this, 'handle_exit_recovery_mode' ) ); add_action( 'recovery_mode_clean_expired_keys', array( $this, 'clean_expired_keys' ) ); if ( ! wp_next_scheduled( 'recovery_mode_clean_expired_keys' ) && ! wp_installing() ) { wp_schedule_event( time(), 'daily', 'recovery_mode_clean_expired_keys' ); } if ( defined( 'WP_RECOVERY_MODE_SESSION_ID' ) ) { $this->is_active = true; $this->session_id = WP_RECOVERY_MODE_SESSION_ID; return; } if ( $this->cookie_service->is_cookie_set() ) { $this->handle_cookie(); return; } $this->link_service->handle_begin_link( $this->get_link_ttl() ); } /* * Checks whether recovery mode is active. * * This will not change after recovery mode has been initialized. {@see WP_Recovery_Mode::run()}. * * @since 5.2.0 * * @return bool True if recovery mode is active, false otherwise. / public function is_active() { return $this->is_active; } /* * Gets the recovery mode session ID. * * @since 5.2.0 * * @return string The session ID if recovery mode is active, empty string otherwise. / public function get_session_id() { return $this->session_id; } /* * Checks whether recovery mode has been initialized. * * Recovery mode should not be used until this point. Initialization happens immediately before loading plugins. * * @since 5.2.0 * * @return bool / public function is_initialized() { return $this->is_initialized; } /* * Handles a fatal error occurring. * * The calling API should immediately die() after calling this function. * * @since 5.2.0 * * @param array $error Error details from `error_get_last()`. * @return true\|WP_Error\|void True if the error was handled and headers have already been sent. * Or the request will exit to try and catch multiple errors at once. * WP_Error if an error occurred preventing it from being handled. / public function handle_error( array $error ) { $extension = $this->get_extension_for_error( $error ); if ( ! $extension \|\| $this->is_network_plugin( $extension ) ) { return new WP_Error( 'invalid_source', __( 'Error not caused by a plugin or theme.' ) ); } if ( ! $this->is_active() ) { if ( ! is_protected_endpoint() ) { return new WP_Error( 'non_protected_endpoint', __( 'Error occurred on a non-protected endpoint.' ) ); } if ( ! function_exists( 'wp_generate_password' ) ) { require_once ABSPATH . WPINC . '/pluggable.php'; } return $this->email_service->maybe_send_recovery_mode_email( $this->get_email_rate_limit(), $error, $extension ); } if ( ! $this->store_error( $error ) ) { return new WP_Error( 'storage_error', __( 'Failed to store the error.' ) ); } if ( headers_sent() ) { return true; } $this->redirect_protected(); } /* * Ends the current recovery mode session. * * @since 5.2.0 * * @return bool True on success, false on failure. / public function exit_recovery_mode() { if ( ! $this->is_active() ) { return false; } $this->email_service->clear_rate_limit(); $this->cookie_service->clear_cookie(); wp_paused_plugins()->delete_all(); wp_paused_themes()->delete_all(); return true; } /* * Handles a request to exit Recovery Mode. * * @since 5.2.0 / public function handle_exit_recovery_mode() { $redirect_to = wp_get_referer(); // Safety check in case referrer returns false. if ( ! $redirect_to ) { $redirect_to = is_user_logged_in() ? admin_url() : home_url(); } if ( ! $this->is_active() ) { wp_safe_redirect( $redirect_to ); die; } if ( ! isset( $_GET['action'] ) \|\| self::EXIT_ACTION !== $_GET['action'] ) { return; } if ( ! isset( $_GET['_wpnonce'] ) \|\| ! wp_verify_nonce( $_GET['_wpnonce'], self::EXIT_ACTION ) ) { wp_die( __( 'Exit recovery mode link expired.' ), 403 ); } if ( ! $this->exit_recovery_mode() ) { wp_die( __( 'Failed to exit recovery mode. Please try again later.' ) ); } wp_safe_redirect( $redirect_to ); die; } /* * Cleans any recovery mode keys that have expired according to the link TTL. * * Executes on a daily cron schedule. * * @since 5.2.0 / public function clean_expired_keys() { $this->key_service->clean_expired_keys( $this->get_link_ttl() ); } /* * Handles checking for the recovery mode cookie and validating it. * * @since 5.2.0 / protected function handle_cookie() { $validated = $this->cookie_service->validate_cookie(); if ( is_wp_error( $validated ) ) { $this->cookie_service->clear_cookie(); $validated->add_data( array( 'status' => 403 ) ); wp_die( $validated ); } $session_id = $this->cookie_service->get_session_id_from_cookie(); if ( is_wp_error( $session_id ) ) { $this->cookie_service->clear_cookie(); $session_id->add_data( array( 'status' => 403 ) ); wp_die( $session_id ); } $this->is_active = true; $this->session_id = $session_id; } /* * Gets the rate limit between sending new recovery mode email links. * * @since 5.2.0 * * @return int Rate limit in seconds. / protected function get_email_rate_limit() { /* * Filters the rate limit between sending new recovery mode email links. * * @since 5.2.0 * * @param int $rate_limit Time to wait in seconds. Defaults to 1 day. / return apply_filters( 'recovery_mode_email_rate_limit', DAY_IN_SECONDS ); } /* * Gets the number of seconds the recovery mode link is valid for. * * @since 5.2.0 * * @return int Interval in seconds. / protected function get_link_ttl() { $rate_limit = $this->get_email_rate_limit(); $valid_for = $rate_limit; /* * Filters the amount of time the recovery mode email link is valid for. * * The ttl must be at least as long as the email rate limit. * * @since 5.2.0 * * @param int $valid_for The number of seconds the link is valid for. / $valid_for = apply_filters( 'recovery_mode_email_link_ttl', $valid_for ); return max( $valid_for, $rate_limit ); } /* * Gets the extension that the error occurred in. * * @since 5.2.0 * * @global string[] $wp_theme_directories * * @param array $error Error details from `error_get_last()`. * @return array\|false { * Extension details. * * @type string $slug The extension slug. This is the plugin or theme's directory. * @type string $type The extension type. Either 'plugin' or 'theme'. * } / protected function get_extension_for_error( $error ) { global $wp_theme_directories; if ( ! isset( $error['file'] ) ) { return false; } if ( ! defined( 'WP_PLUGIN_DIR' ) ) { return false; } $error_file = wp_normalize_path( $error['file'] ); $wp_plugin_dir = wp_normalize_path( WP_PLUGIN_DIR ); if ( str_starts_with( $error_file, $wp_plugin_dir ) ) { $path = str_replace( $wp_plugin_dir . '/', '', $error_file ); $parts = explode( '/', $path ); return array( 'type' => 'plugin', 'slug' => $parts[0], ); } if ( empty( $wp_theme_directories ) ) { return false; } foreach ( $wp_theme_directories as $theme_directory ) { $theme_directory = wp_normalize_path( $theme_directory ); if ( str_starts_with( $error_file, $theme_directory ) ) { $path = str_replace( $theme_directory . '/', '', $error_file ); $parts = explode( '/', $path ); return array( 'type' => 'theme', 'slug' => $parts[0], ); } } return false; } /* * Checks whether the given extension a network activated plugin. * * @since 5.2.0 * * @param array $extension Extension data. * @return bool True if network plugin, false otherwise. / protected function is_network_plugin( $extension ) { if ( 'plugin' !== $extension['type'] ) { return false; } if ( ! is_multisite() ) { return false; } $network_plugins = wp_get_active_network_plugins(); foreach ( $network_plugins as $plugin ) { if ( str_starts_with( $plugin, $extension['slug'] . '/' ) ) { return true; } } return false; } /* * Stores the given error so that the extension causing it is paused. * * @since 5.2.0 * * @param array $error Error details from `error_get_last()`. * @return bool True if the error was stored successfully, false otherwise. / protected function store_error( $error ) { $extension = $this->get_extension_for_error( $error ); if ( ! $extension ) { return false; } switch ( $extension['type'] ) { case 'plugin': return wp_paused_plugins()->set( $extension['slug'], $error ); case 'theme': return wp_paused_themes()->set( $extension['slug'], $error ); default: return false; } } /* * Redirects the current request to allow recovering multiple errors in one go. * * The redirection will only happen when on a protected endpoint. * * It must be ensured that this method is only called when an error actually occurred and will not occur on the * next request again. Otherwise it will create a redirect loop. * * @since 5.2.0 */ protected function redirect_protected() { // Pluggable is usually loaded after plugins, so we manually include it here for redirection functionality. if ( ! function_exists( 'wp_safe_redirect' ) ) { require_once ABSPATH . WPINC . '/pluggable.php'; } $scheme = is_ssl() ? 'https://' : 'http://'; $url = "{$scheme}{$_SERVER['HTTP_HOST']}{$_SERVER['REQUEST_URI']}"; wp_safe_redirect( $url ); exit; } } Back

Edit File : class-wp-recovery-mode.php | Size : 11.18 KB

<?php
/**
 * Error Protection API: WP_Recovery_Mode class
 *
 * @package WordPress
 * @since 5.2.0
 */

/**
 * Core class used to implement Recovery Mode.
 *
 * @since 5.2.0
 */
#[AllowDynamicProperties]
class WP_Recovery_Mode {

const EXIT_ACTION = 'exit_recovery_mode';

/**
	 * Service to handle cookies.
	 *
	 * @since 5.2.0
	 * @var WP_Recovery_Mode_Cookie_Service
	 */
	private $cookie_service;

/**
	 * Service to generate a recovery mode key.
	 *
	 * @since 5.2.0
	 * @var WP_Recovery_Mode_Key_Service
	 */
	private $key_service;

/**
	 * Service to generate and validate recovery mode links.
	 *
	 * @since 5.2.0
	 * @var WP_Recovery_Mode_Link_Service
	 */
	private $link_service;

/**
	 * Service to handle sending an email with a recovery mode link.
	 *
	 * @since 5.2.0
	 * @var WP_Recovery_Mode_Email_Service
	 */
	private $email_service;

/**
	 * Is recovery mode initialized.
	 *
	 * @since 5.2.0
	 * @var bool
	 */
	private $is_initialized = false;

/**
	 * Is recovery mode active in this session.
	 *
	 * @since 5.2.0
	 * @var bool
	 */
	private $is_active = false;

/**
	 * Get an ID representing the current recovery mode session.
	 *
	 * @since 5.2.0
	 * @var string
	 */
	private $session_id = '';

/**
	 * WP_Recovery_Mode constructor.
	 *
	 * @since 5.2.0
	 */
	public function __construct() {
		$this->cookie_service = new WP_Recovery_Mode_Cookie_Service();
		$this->key_service    = new WP_Recovery_Mode_Key_Service();
		$this->link_service   = new WP_Recovery_Mode_Link_Service( $this->cookie_service, $this->key_service );
		$this->email_service  = new WP_Recovery_Mode_Email_Service( $this->link_service );
	}

/**
	 * Initialize recovery mode for the current request.
	 *
	 * @since 5.2.0
	 */
	public function initialize() {
		$this->is_initialized = true;

add_action( 'wp_logout', array( $this, 'exit_recovery_mode' ) );
		add_action( 'login_form_' . self::EXIT_ACTION, array( $this, 'handle_exit_recovery_mode' ) );
		add_action( 'recovery_mode_clean_expired_keys', array( $this, 'clean_expired_keys' ) );

if ( ! wp_next_scheduled( 'recovery_mode_clean_expired_keys' ) && ! wp_installing() ) {
			wp_schedule_event( time(), 'daily', 'recovery_mode_clean_expired_keys' );
		}

if ( defined( 'WP_RECOVERY_MODE_SESSION_ID' ) ) {
			$this->is_active  = true;
			$this->session_id = WP_RECOVERY_MODE_SESSION_ID;

return;
		}

if ( $this->cookie_service->is_cookie_set() ) {
			$this->handle_cookie();

return;
		}

$this->link_service->handle_begin_link( $this->get_link_ttl() );
	}

/**
	 * Checks whether recovery mode is active.
	 *
	 * This will not change after recovery mode has been initialized. {@see WP_Recovery_Mode::run()}.
	 *
	 * @since 5.2.0
	 *
	 * @return bool True if recovery mode is active, false otherwise.
	 */
	public function is_active() {
		return $this->is_active;
	}

/**
	 * Gets the recovery mode session ID.
	 *
	 * @since 5.2.0
	 *
	 * @return string The session ID if recovery mode is active, empty string otherwise.
	 */
	public function get_session_id() {
		return $this->session_id;
	}

/**
	 * Checks whether recovery mode has been initialized.
	 *
	 * Recovery mode should not be used until this point. Initialization happens immediately before loading plugins.
	 *
	 * @since 5.2.0
	 *
	 * @return bool
	 */
	public function is_initialized() {
		return $this->is_initialized;
	}

/**
	 * Handles a fatal error occurring.
	 *
	 * The calling API should immediately die() after calling this function.
	 *
	 * @since 5.2.0
	 *
	 * @param array $error Error details from `error_get_last()`.
	 * @return true|WP_Error|void True if the error was handled and headers have already been sent.
	 *                            Or the request will exit to try and catch multiple errors at once.
	 *                            WP_Error if an error occurred preventing it from being handled.
	 */
	public function handle_error( array $error ) {

$extension = $this->get_extension_for_error( $error );

if ( ! $extension || $this->is_network_plugin( $extension ) ) {
			return new WP_Error( 'invalid_source', __( 'Error not caused by a plugin or theme.' ) );
		}

if ( ! $this->is_active() ) {
			if ( ! is_protected_endpoint() ) {
				return new WP_Error( 'non_protected_endpoint', __( 'Error occurred on a non-protected endpoint.' ) );
			}

if ( ! function_exists( 'wp_generate_password' ) ) {
				require_once ABSPATH . WPINC . '/pluggable.php';
			}

return $this->email_service->maybe_send_recovery_mode_email( $this->get_email_rate_limit(), $error, $extension );
		}

if ( ! $this->store_error( $error ) ) {
			return new WP_Error( 'storage_error', __( 'Failed to store the error.' ) );
		}

if ( headers_sent() ) {
			return true;
		}

$this->redirect_protected();
	}

/**
	 * Ends the current recovery mode session.
	 *
	 * @since 5.2.0
	 *
	 * @return bool True on success, false on failure.
	 */
	public function exit_recovery_mode() {
		if ( ! $this->is_active() ) {
			return false;
		}

$this->email_service->clear_rate_limit();
		$this->cookie_service->clear_cookie();

wp_paused_plugins()->delete_all();
		wp_paused_themes()->delete_all();

return true;
	}

/**
	 * Handles a request to exit Recovery Mode.
	 *
	 * @since 5.2.0
	 */
	public function handle_exit_recovery_mode() {
		$redirect_to = wp_get_referer();

// Safety check in case referrer returns false.
		if ( ! $redirect_to ) {
			$redirect_to = is_user_logged_in() ? admin_url() : home_url();
		}

if ( ! $this->is_active() ) {
			wp_safe_redirect( $redirect_to );
			die;
		}

if ( ! isset( $_GET['action'] ) || self::EXIT_ACTION !== $_GET['action'] ) {
			return;
		}

if ( ! isset( $_GET['_wpnonce'] ) || ! wp_verify_nonce( $_GET['_wpnonce'], self::EXIT_ACTION ) ) {
			wp_die( __( 'Exit recovery mode link expired.' ), 403 );
		}

if ( ! $this->exit_recovery_mode() ) {
			wp_die( __( 'Failed to exit recovery mode. Please try again later.' ) );
		}

wp_safe_redirect( $redirect_to );
		die;
	}

/**
	 * Cleans any recovery mode keys that have expired according to the link TTL.
	 *
	 * Executes on a daily cron schedule.
	 *
	 * @since 5.2.0
	 */
	public function clean_expired_keys() {
		$this->key_service->clean_expired_keys( $this->get_link_ttl() );
	}

/**
	 * Handles checking for the recovery mode cookie and validating it.
	 *
	 * @since 5.2.0
	 */
	protected function handle_cookie() {
		$validated = $this->cookie_service->validate_cookie();

if ( is_wp_error( $validated ) ) {
			$this->cookie_service->clear_cookie();

$validated->add_data( array( 'status' => 403 ) );
			wp_die( $validated );
		}

$session_id = $this->cookie_service->get_session_id_from_cookie();
		if ( is_wp_error( $session_id ) ) {
			$this->cookie_service->clear_cookie();

$session_id->add_data( array( 'status' => 403 ) );
			wp_die( $session_id );
		}

$this->is_active  = true;
		$this->session_id = $session_id;
	}

/**
	 * Gets the rate limit between sending new recovery mode email links.
	 *
	 * @since 5.2.0
	 *
	 * @return int Rate limit in seconds.
	 */
	protected function get_email_rate_limit() {
		/**
		 * Filters the rate limit between sending new recovery mode email links.
		 *
		 * @since 5.2.0
		 *
		 * @param int $rate_limit Time to wait in seconds. Defaults to 1 day.
		 */
		return apply_filters( 'recovery_mode_email_rate_limit', DAY_IN_SECONDS );
	}

/**
	 * Gets the number of seconds the recovery mode link is valid for.
	 *
	 * @since 5.2.0
	 *
	 * @return int Interval in seconds.
	 */
	protected function get_link_ttl() {

$rate_limit = $this->get_email_rate_limit();
		$valid_for  = $rate_limit;

/**
		 * Filters the amount of time the recovery mode email link is valid for.
		 *
		 * The ttl must be at least as long as the email rate limit.
		 *
		 * @since 5.2.0
		 *
		 * @param int $valid_for The number of seconds the link is valid for.
		 */
		$valid_for = apply_filters( 'recovery_mode_email_link_ttl', $valid_for );

return max( $valid_for, $rate_limit );
	}

/**
	 * Gets the extension that the error occurred in.
	 *
	 * @since 5.2.0
	 *
	 * @global string[] $wp_theme_directories
	 *
	 * @param array $error Error details from `error_get_last()`.
	 * @return array|false {
	 *     Extension details.
	 *
	 *     @type string $slug The extension slug. This is the plugin or theme's directory.
	 *     @type string $type The extension type. Either 'plugin' or 'theme'.
	 * }
	 */
	protected function get_extension_for_error( $error ) {
		global $wp_theme_directories;

if ( ! isset( $error['file'] ) ) {
			return false;
		}

if ( ! defined( 'WP_PLUGIN_DIR' ) ) {
			return false;
		}

$error_file    = wp_normalize_path( $error['file'] );
		$wp_plugin_dir = wp_normalize_path( WP_PLUGIN_DIR );

if ( str_starts_with( $error_file, $wp_plugin_dir ) ) {
			$path  = str_replace( $wp_plugin_dir . '/', '', $error_file );
			$parts = explode( '/', $path );

return array(
				'type' => 'plugin',
				'slug' => $parts[0],
			);
		}

if ( empty( $wp_theme_directories ) ) {
			return false;
		}

foreach ( $wp_theme_directories as $theme_directory ) {
			$theme_directory = wp_normalize_path( $theme_directory );

if ( str_starts_with( $error_file, $theme_directory ) ) {
				$path  = str_replace( $theme_directory . '/', '', $error_file );
				$parts = explode( '/', $path );

return array(
					'type' => 'theme',
					'slug' => $parts[0],
				);
			}
		}

return false;
	}

/**
	 * Checks whether the given extension a network activated plugin.
	 *
	 * @since 5.2.0
	 *
	 * @param array $extension Extension data.
	 * @return bool True if network plugin, false otherwise.
	 */
	protected function is_network_plugin( $extension ) {
		if ( 'plugin' !== $extension['type'] ) {
			return false;
		}

if ( ! is_multisite() ) {
			return false;
		}

$network_plugins = wp_get_active_network_plugins();

foreach ( $network_plugins as $plugin ) {
			if ( str_starts_with( $plugin, $extension['slug'] . '/' ) ) {
				return true;
			}
		}

return false;
	}

/**
	 * Stores the given error so that the extension causing it is paused.
	 *
	 * @since 5.2.0
	 *
	 * @param array $error Error details from `error_get_last()`.
	 * @return bool True if the error was stored successfully, false otherwise.
	 */
	protected function store_error( $error ) {
		$extension = $this->get_extension_for_error( $error );

if ( ! $extension ) {
			return false;
		}

switch ( $extension['type'] ) {
			case 'plugin':
				return wp_paused_plugins()->set( $extension['slug'], $error );
			case 'theme':
				return wp_paused_themes()->set( $extension['slug'], $error );
			default:
				return false;
		}
	}

/**
	 * Redirects the current request to allow recovering multiple errors in one go.
	 *
	 * The redirection will only happen when on a protected endpoint.
	 *
	 * It must be ensured that this method is only called when an error actually occurred and will not occur on the
	 * next request again. Otherwise it will create a redirect loop.
	 *
	 * @since 5.2.0
	 */
	protected function redirect_protected() {
		// Pluggable is usually loaded after plugins, so we manually include it here for redirection functionality.
		if ( ! function_exists( 'wp_safe_redirect' ) ) {
			require_once ABSPATH . WPINC . '/pluggable.php';
		}

$scheme = is_ssl() ? 'https://' : 'http://';

$url = "{$scheme}{$_SERVER['HTTP_HOST']}{$_SERVER['REQUEST_URI']}";
		wp_safe_redirect( $url );
		exit;
	}
}

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