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<?php /** * Represents an audit system for WordPress core, themes, and plugins. * * @package WP_Defender\Component\Audit */ namespace WP_Defender\Component\Audit; use WP_Upgrader; use WP_Defender\Model\Audit_Log; use WP_Defender\Component\Security_Tweaks\WP_Version; /** * Handles the auditing of WordPress core, themes, and plugins such as plugin activation, deactivation, and * installation, and theme activation, deactivation, and installation. */ class Core_Audit extends Audit_Event { public const ACTION_ACTIVATED = 'activated', ACTION_DEACTIVATED = 'deactivated', ACTION_INSTALLED = 'installed', ACTION_UPGRADED = 'upgraded'; public const FILE_ADDED = 'file_added', FILE_MODIFIED = 'file_modified'; public const CONTEXT_THEME = 'ct_theme', CONTEXT_PLUGIN = 'ct_plugin', CONTEXT_CORE = 'ct_core'; /** * Retrieves a list of hooks that the audit system will respond to. * * @return array Associative array of hooks and their corresponding callback information. */ public function get_hooks(): array { $data = array( 'switch_theme' => array( 'args' => array( 'new_name', 'new_theme' ), 'callback' => array( self::class, 'process_activate_theme' ), 'event_type' => Audit_Log::EVENT_TYPE_SYSTEM, 'action_type' => self::ACTION_ACTIVATED, ), 'activated_plugin' => array( 'args' => array( 'plugin' ), 'text' => sprintf( /* translators: 1: Blog name, 2: Source of action. For e.g. Hub or a logged-in user, 3: Plugin name, 4: Plugin version. */ esc_html__( '%1$s %2$s activated plugin: %3$s, version %4$s', 'defender-security' ), '{{blog_name}}', '{{wp_user}}', '{{plugin_name}}', '{{plugin_version}}' ), 'event_type' => Audit_Log::EVENT_TYPE_SYSTEM, 'action_type' => self::ACTION_ACTIVATED, 'context' => self::CONTEXT_PLUGIN, 'program_args' => array( 'plugin_abs_path' => array( 'callable' => array( self::class, 'get_plugin_abs_path' ), 'params' => array( '{{plugin}}', ), ), 'plugin_name' => array( 'callable' => 'get_plugin_data', 'params' => array( '{{plugin_abs_path}}', ), 'result_property' => 'Name', ), 'plugin_version' => array( 'callable' => 'get_plugin_data', 'params' => array( '{{plugin_abs_path}}', ), 'result_property' => 'Version', ), ), ), 'deleted_plugin' => array( 'args' => array( 'plugin_file', 'deleted' ), 'callback' => array( self::class, 'process_delete_plugin' ), 'action_type' => self::ACTION_DEACTIVATED, 'event_type' => Audit_Log::EVENT_TYPE_SYSTEM, ), 'deactivated_plugin' => array( 'args' => array( 'plugin' ), 'text' => sprintf( /* translators: 1: Blog name, 2: Source of action. For e.g. Hub or a logged-in user, 3: Plugin name, 4: Plugin version. */ esc_html__( '%1$s %2$s deactivated plugin: %3$s, version %4$s', 'defender-security' ), '{{blog_name}}', '{{wp_user}}', '{{plugin_name}}', '{{plugin_version}}' ), 'action_type' => self::ACTION_DEACTIVATED, 'event_type' => Audit_Log::EVENT_TYPE_SYSTEM, 'context' => self::CONTEXT_PLUGIN, 'program_args' => array( 'plugin_abs_path' => array( 'callable' => array( self::class, 'get_plugin_abs_path' ), 'params' => array( '{{plugin}}', ), ), 'plugin_name' => array( 'callable' => 'get_plugin_data', 'params' => array( '{{plugin_abs_path}}', ), 'result_property' => 'Name', ), 'plugin_version' => array( 'callable' => 'get_plugin_data', 'params' => array( '{{plugin_abs_path}}', ), 'result_property' => 'Version', ), ), ), 'upgrader_process_complete' => array( 'args' => array( 'upgrader', 'options' ), 'callback' => array( self::class, 'process_installer' ), 'action_type' => self::ACTION_UPGRADED, 'event_type' => Audit_Log::EVENT_TYPE_SYSTEM, ), ); global $wp_version; // @since 2.7.0 Add hook for deleted theme. Use 'deleted_theme' hook that was added since WP v5.8.0. if ( version_compare( $wp_version, '5.8.0', '>=' ) ) { $data['deleted_theme'] = array( 'args' => array( 'stylesheet', 'deleted' ), 'text' => sprintf( /* translators: 1: Blog name, 2: Source of action. For e.g. Hub or a logged-in user, 3: Stylesheet of the theme. */ esc_html__( '%1$s %2$s deleted theme: %3$s', 'defender-security' ), '{{blog_name}}', '{{wp_user}}', '{{stylesheet}}' ), 'action_type' => self::ACTION_DEACTIVATED, 'event_type' => Audit_Log::EVENT_TYPE_SYSTEM, 'context' => self::CONTEXT_THEME, ); } return $data; } /** * Prepares the data for recording a core upgrade event. * * @param string $wp_version The new WordPress version. * * @return array Array containing the formatted message and the context. */ private function get_upgraded_core_data_for_record( $wp_version ) { return array( sprintf( /* translators: 1: Blog name, 2: Source of action. For e.g. Hub or a logged-in user, 3: Wordpress version. */ esc_html__( '%1$s %2$s updated WordPress to %3$s', 'defender-security' ), is_multisite() ? '[' . get_bloginfo( 'name' ) . ']' : '', $this->get_source_of_action(), $wp_version ), self::CONTEXT_CORE, ); } /** * Handles the upgrade process for WordPress core and prepares the audit log entry. * * @return array|bool Returns the log entry data or false if no update is needed. */ public function upgrade_core() { $update_core = get_site_transient( 'update_core' ); if ( is_object( $update_core ) ) { $updates = $update_core->updates; $updates = array_shift( $updates ); if ( is_object( $updates ) && property_exists( $updates, 'version' ) ) { return $this->get_upgraded_core_data_for_record( $updates->version ); } } elseif ( empty( $update_core ) && $this->is_hub_request() ) { // Hub has already updated WP core to the latest version. $wp_version = ( new WP_Version() )->get_latest_version(); return $wp_version ? $this->get_upgraded_core_data_for_record( $wp_version ) : false; } return false; } /** * Processes bulk upgrade actions for themes or plugins and generates the audit log entry. * * @param WP_Upgrader $upgrader The upgrade instance. * @param array $options Options containing type and items being upgraded. * * @return array|bool Returns the log entry data or false if unable to generate log data. */ public function bulk_upgrade( WP_Upgrader $upgrader, array $options ) { if ( ! is_object( $upgrader->skin ) ) { return false; } $blog_name = is_multisite() ? '[' . get_bloginfo( 'name' ) . ']' : ''; if ( isset( $upgrader->skin->result ) && is_wp_error( $upgrader->skin->result ) ) { // Todo: extend Audit table with a new column for the result of the process and divide it into success and failure. $failed_result = true; } else { $failed_result = false; } if ( 'theme' === $options['type'] ) { $texts = array(); foreach ( $options['themes'] as $slug ) { $theme = wp_get_theme( $slug ); if ( is_object( $theme ) ) { $texts[] = sprintf( /* translators: 1: Theme name, 2: Theme version. */ $failed_result ? esc_html( '%1$s version %2$s' ) : esc_html( '%1$s to %2$s' ), $theme->Name, // phpcs:ignore WordPress.NamingConventions.ValidVariableName.UsedPropertyNotSnakeCase $theme->get( 'Version' ) ); } } if ( count( $texts ) ) { return array( sprintf( $failed_result ? /* translators: 1: Blog name, 2: Source of action. For e.g. Hub or a logged-in user, 3: Translated status for themes. */ esc_html__( '%1$s %2$s was unable to update themes: %3$s', 'defender-security' ) : /* translators: 1: Blog name, 2: Source of action. For e.g. Hub or a logged-in user, 3: Translated status for themes. */ esc_html__( '%1$s %2$s updated themes: %3$s', 'defender-security' ), $blog_name, $this->get_source_of_action(), implode( ', ', $texts ) ), self::CONTEXT_THEME, ); } else { return false; } } elseif ( 'plugin' === $options['type'] ) { $texts = array(); foreach ( $options['plugins'] as $slug ) { $plugin = get_plugin_data( WP_PLUGIN_DIR . DIRECTORY_SEPARATOR . $slug ); if ( is_array( $plugin ) && isset( $plugin['Name'] ) && ! empty( $plugin['Name'] ) ) { $texts[] = sprintf( /* translators: 1: Plugin name, 2: Plugin version. */ $failed_result ? esc_html( '%1$s version %2$s' ) : esc_html( '%1$s to %2$s' ), $plugin['Name'], $plugin['Version'] ); } } if ( count( $texts ) ) { return array( sprintf( $failed_result ? /* translators: 1: Blog name, 2: Source of action. For e.g. Hub or a logged-in user, 3: Translated status for plugins. */ esc_html__( '%1$s %2$s was unable to update plugins: %3$s', 'defender-security' ) : /* translators: 1: Blog name, 2: Source of action. For e.g. Hub or a logged-in user, 3: Translated status for plugins. */ esc_html__( '%1$s %2$s updated plugins: %3$s', 'defender-security' ), $blog_name, $this->get_source_of_action(), implode( ', ', $texts ) ), self::CONTEXT_PLUGIN, ); } else { return false; } } } /** * Handles single item upgrade for themes or plugins and prepares the audit log entry. * * @param WP_Upgrader $upgrader The upgrade instance. * @param array $options Options containing type and the item being upgraded. * * @return array|bool Returns the log entry data or false if unable to generate log data. */ public function single_upgrade( WP_Upgrader $upgrader, array $options ) { $blog_name = is_multisite() ? '[' . get_bloginfo( 'name' ) . ']' : ''; if ( 'theme' === $options['type'] ) { $theme = wp_get_theme( $options['theme'] ); if ( is_object( $theme ) ) { $name = $theme->Name; // phpcs:ignore WordPress.NamingConventions.ValidVariableName.UsedPropertyNotSnakeCase $version = $theme->get( 'Version' ); return array( sprintf( /* translators: 1: Blog name, 2: Source of action. For e.g. Hub or a logged-in user, 3: Theme name, 4: Theme version. */ esc_html__( '%1$s %2$s updated theme: %3$s, version %4$s', 'defender-security' ), $blog_name, $this->get_source_of_action(), $name, $version ), self::CONTEXT_THEME, ); } else { return false; } } elseif ( 'plugin' === $options['type'] ) { $slug = $options['plugin']; $data = get_plugin_data( WP_PLUGIN_DIR . DIRECTORY_SEPARATOR . $slug ); if ( is_array( $data ) ) { $name = $data['Name']; $version = $data['Version']; return array( sprintf( /* translators: 1: Blog name, 2: Source of action. For e.g. Hub or a logged-in user, 3: Plugin name, 4: Plugin version. */ esc_html__( '%1$s %2$s updated plugin: %3$s, version %4$s', 'defender-security' ), $blog_name, $this->get_source_of_action(), $name, $version ), self::CONTEXT_PLUGIN, ); } else { return false; } } } /** * Install process. * Log in the format: {BLOG_NAME} {USERNAME} installed {theme/plugin}: {theme/plugin name}, version {VERSION}. * * @param WP_Upgrader $upgrade The upgrade instance. * @param array $options Options containing type and the item being installed. * * @return bool|array */ private function single_install( WP_Upgrader $upgrade, array $options ) { if ( ! is_object( $upgrade->skin ) ) { return false; } // Only for plugins, themes. No for translation, core. if ( ! in_array( $options['type'], array( 'theme', 'plugin' ), true ) ) { return false; } $name = ''; if ( ! empty( $upgrade->skin->api ) ) { $name = $upgrade->skin->api->name; } elseif ( ! empty( $upgrade->skin->upgrader ) ) { $type_data = ( 'theme' === $options['type'] && isset( $upgrade->skin->upgrader->new_theme_data ) ) ? $upgrade->skin->upgrader->new_theme_data : $upgrade->skin->upgrader->new_plugin_data; if ( ! empty( $type_data['Name'] ) && ! empty( $type_data['Version'] ) ) { $name = $type_data['Name'] . ', version ' . $type_data['Version']; } } elseif ( ! empty( $upgrade->skin->result ) ) { if ( is_array( $upgrade->skin->result ) && isset( $upgrade->skin->result['destination_name'] ) ) { $name = $upgrade->skin->result['destination_name']; } elseif ( is_object( $upgrade->skin->result ) && property_exists( $upgrade->skin->result, 'destination_name' ) ) { $name = $upgrade->skin->result->destination_name; } } if ( empty( $name ) ) { return false; } $blog_name = is_multisite() ? '[' . get_bloginfo( 'name' ) . ']' : ''; if ( 'theme' === $options['type'] ) { return array( sprintf( /* translators: %s - blog name, %s - username, %s - theme name */ esc_html__( '%1$s %2$s installed theme: %3$s', 'defender-security' ), $blog_name, $this->get_source_of_action(), $name ), self::CONTEXT_THEME, self::ACTION_INSTALLED, ); } else { return array( sprintf( /* translators: %s - blog name, %s - username, %s - plugin name */ esc_html__( '%1$s %2$s installed plugin: %3$s', 'defender-security' ), $blog_name, $this->get_source_of_action(), $name ), self::CONTEXT_PLUGIN, self::ACTION_INSTALLED, ); } return false; } /** * Param 'upgrader' is WP_Upgrader instance. It might be a Theme_Upgrader, Plugin_Upgrader, Core_Upgrade, or * Language_Pack_Upgrader instance. Param 'options' is array of bulk item update data. Keys: * 'action' (string) Type of action. Default 'update'. * 'type' (string) Type of update process. Accepts 'plugin', 'theme', 'translation', or 'core'. * 'bulk' (bool) Whether the update process is a bulk update. Default true. * 'plugins' (array) Array of the basename paths of the plugins' main files. * 'themes' (array) The theme slugs. * 'translations' (array) Array of translations update data: 'language', 'type', 'slug', 'version'. * * @return mixed */ public function process_installer() { $args = func_get_args(); $upgrader = $args[1]['upgrader']; $options = $args[1]['options']; if ( 'core' === $options['type'] ) { return $this->upgrade_core(); // If this is core, we just create text and return. } elseif ( isset( $options['bulk'] ) && true === $options['bulk'] ) { // Case: local install/update work with 'bulk' => true (for mass action and no). return $this->bulk_upgrade( $upgrader, $options ); } elseif ( 'install' === $options['action'] ) { // Case: actions from Hub. return $this->single_install( $upgrader, $options ); } elseif ( 'update' === $options['action'] ) { // Case: actions from Hub. return $this->single_upgrade( $upgrader, $options ); } } /** * Fires after the theme is switched. * * @return array|bool */ public function process_activate_theme() { $args = func_get_args(); $new_theme = $args[1]['new_theme']; if ( ! is_object( $new_theme ) ) { return false; } $new_name = $args[1]['new_name']; $version = $new_theme->get( 'Version' ); $blog_name = is_multisite() ? '[' . get_bloginfo( 'name' ) . ']' : ''; return array( sprintf( /* translators: 1: Blog name, 2: Source of action. For e.g. Hub or a logged-in user, 3: Theme name, 4: Theme version. */ esc_html__( '%1$s %2$s activated theme: %3$s, version %4$s', 'defender-security' ), $blog_name, $this->get_source_of_action(), $new_name, $version ), self::CONTEXT_THEME, ); } /** * Fires immediately after a plugin deletion. * There is no way to get the plugin data (name, version) because it has been removed. Only slug. * * @return array */ public function process_delete_plugin(): array { $args = func_get_args(); // If 'deleted'-arg is false then the plugin deletion wasn't successful. if ( empty( $args[1]['deleted'] ) ) { // Todo: extend Audit table with a new column for the result of the process and divide it into success and failure. $failed_result = true; } else { $failed_result = false; } $plugin_file = $args[1]['plugin_file']; $blog_name = is_multisite() ? '[' . get_bloginfo( 'name' ) . ']' : ''; return array( sprintf( $failed_result ? /* translators: 1: Blog name, 2: Source of action. For e.g. Hub or a logged-in user, 3: Plugin file. */ esc_html__( '%1$s %2$s was unable to delete plugin: %3$s', 'defender-security' ) : /* translators: 1: Blog name, 2: Source of action. For e.g. Hub or a logged-in user, 3: Plugin file. */ esc_html__( '%1$s %2$s deleted plugin: %3$s', 'defender-security' ), $blog_name, $this->get_source_of_action(), $plugin_file ), self::CONTEXT_PLUGIN, ); } /** * Provides a dictionary of audit event types and their descriptions. * * @return array Associative array of event keys and their descriptions. */ public function dictionary(): array { return array( self::ACTION_DEACTIVATED => esc_html__( 'deactivated', 'defender-security' ), self::ACTION_UPGRADED => esc_html__( 'upgraded', 'defender-security' ), self::ACTION_ACTIVATED => esc_html__( 'activated', 'defender-security' ), self::ACTION_INSTALLED => esc_html__( 'installed', 'defender-security' ), self::CONTEXT_THEME => esc_html__( 'theme', 'defender-security' ), self::CONTEXT_PLUGIN => esc_html__( 'plugin', 'defender-security' ), self::CONTEXT_CORE => esc_html__( 'WordPress', 'defender-security' ), self::FILE_ADDED => esc_html__( 'File Added', 'defender-security' ), self::FILE_MODIFIED => esc_html__( 'File Modified', 'defender-security' ), ); } /** * Retrieves the absolute path of a plugin. * * @param string $slug The plugin slug or relative path. * * @return string The absolute path of the plugin. */ public function get_plugin_abs_path( string $slug ): string { if ( ! is_file( $slug ) ) { $slug = WP_PLUGIN_DIR . DIRECTORY_SEPARATOR . $slug; } return $slug; } }
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