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class-wp-application-passwords.php (10626B)

---

 <?php
 /**
  * WP_Application_Passwords class
  *
  * @package WordPress
  * @since   5.6.0
  */
 
 /**
  * Class for displaying, modifying, and sanitizing application passwords.
  *
  * @package WordPress
  */
 class WP_Application_Passwords {
 
 	/**
 	 * The application passwords user meta key.
 	 *
 	 * @since 5.6.0
 	 *
 	 * @var string
 	 */
 	const USERMETA_KEY_APPLICATION_PASSWORDS = '_application_passwords';
 
 	/**
 	 * The option name used to store whether application passwords is in use.
 	 *
 	 * @since 5.6.0
 	 *
 	 * @var string
 	 */
 	const OPTION_KEY_IN_USE = 'using_application_passwords';
 
 	/**
 	 * The generated application password length.
 	 *
 	 * @since 5.6.0
 	 *
 	 * @var int
 	 */
 	const PW_LENGTH = 24;
 
 	/**
 	 * Checks if Application Passwords are being used by the site.
 	 *
 	 * This returns true if at least one App Password has ever been created.
 	 *
 	 * @since 5.6.0
 	 *
 	 * @return bool
 	 */
 	public static function is_in_use() {
 		$network_id = get_main_network_id();
 		return (bool) get_network_option( $network_id, self::OPTION_KEY_IN_USE );
 	}
 
 	/**
 	 * Creates a new application password.
 	 *
 	 * @since 5.6.0
 	 * @since 5.7.0 Returns WP_Error if application name already exists.
 	 *
 	 * @param int   $user_id  User ID.
 	 * @param array $args     Information about the application password.
 	 * @return array|WP_Error The first key in the array is the new password, the second is its detailed information.
 	 *                        A WP_Error instance is returned on error.
 	 */
 	public static function create_new_application_password( $user_id, $args = array() ) {
 		if ( ! empty( $args['name'] ) ) {
 			$args['name'] = sanitize_text_field( $args['name'] );
 		}
 
 		if ( empty( $args['name'] ) ) {
 			return new WP_Error( 'application_password_empty_name', __( 'An application name is required to create an application password.' ), array( 'status' => 400 ) );
 		}
 
 		if ( self::application_name_exists_for_user( $user_id, $args['name'] ) ) {
 			return new WP_Error( 'application_password_duplicate_name', __( 'Each application name should be unique.' ), array( 'status' => 409 ) );
 		}
 
 		$new_password    = wp_generate_password( static::PW_LENGTH, false );
 		$hashed_password = wp_hash_password( $new_password );
 
 		$new_item = array(
 			'uuid'      => wp_generate_uuid4(),
 			'app_id'    => empty( $args['app_id'] ) ? '' : $args['app_id'],
 			'name'      => $args['name'],
 			'password'  => $hashed_password,
 			'created'   => time(),
 			'last_used' => null,
 			'last_ip'   => null,
 		);
 
 		$passwords   = static::get_user_application_passwords( $user_id );
 		$passwords[] = $new_item;
 		$saved       = static::set_user_application_passwords( $user_id, $passwords );
 
 		if ( ! $saved ) {
 			return new WP_Error( 'db_error', __( 'Could not save application password.' ) );
 		}
 
 		$network_id = get_main_network_id();
 		if ( ! get_network_option( $network_id, self::OPTION_KEY_IN_USE ) ) {
 			update_network_option( $network_id, self::OPTION_KEY_IN_USE, true );
 		}
 
 		/**
 		 * Fires when an application password is created.
 		 *
 		 * @since 5.6.0
 		 *
 		 * @param int    $user_id      The user ID.
 		 * @param array  $new_item     The details about the created password.
 		 * @param string $new_password The unhashed generated app password.
 		 * @param array  $args         Information used to create the application password.
 		 */
 		do_action( 'wp_create_application_password', $user_id, $new_item, $new_password, $args );
 
 		return array( $new_password, $new_item );
 	}
 
 	/**
 	 * Gets a user's application passwords.
 	 *
 	 * @since 5.6.0
 	 *
 	 * @param int $user_id User ID.
 	 * @return array The list of app passwords.
 	 */
 	public static function get_user_application_passwords( $user_id ) {
 		$passwords = get_user_meta( $user_id, static::USERMETA_KEY_APPLICATION_PASSWORDS, true );
 
 		if ( ! is_array( $passwords ) ) {
 			return array();
 		}
 
 		$save = false;
 
 		foreach ( $passwords as $i => $password ) {
 			if ( ! isset( $password['uuid'] ) ) {
 				$passwords[ $i ]['uuid'] = wp_generate_uuid4();
 				$save                    = true;
 			}
 		}
 
 		if ( $save ) {
 			static::set_user_application_passwords( $user_id, $passwords );
 		}
 
 		return $passwords;
 	}
 
 	/**
 	 * Gets a user's application password with the given uuid.
 	 *
 	 * @since 5.6.0
 	 *
 	 * @param int    $user_id User ID.
 	 * @param string $uuid    The password's uuid.
 	 * @return array|null The application password if found, null otherwise.
 	 */
 	public static function get_user_application_password( $user_id, $uuid ) {
 		$passwords = static::get_user_application_passwords( $user_id );
 
 		foreach ( $passwords as $password ) {
 			if ( $password['uuid'] === $uuid ) {
 				return $password;
 			}
 		}
 
 		return null;
 	}
 
 	/**
 	 * Checks if application name exists for this user.
 	 *
 	 * @since 5.7.0
 	 *
 	 * @param int    $user_id User ID.
 	 * @param string $name    Application name.
 	 * @return bool Whether provided application name exists or not.
 	 */
 	public static function application_name_exists_for_user( $user_id, $name ) {
 		$passwords = static::get_user_application_passwords( $user_id );
 
 		foreach ( $passwords as $password ) {
 			if ( strtolower( $password['name'] ) === strtolower( $name ) ) {
 				return true;
 			}
 		}
 
 		return false;
 	}
 
 	/**
 	 * Updates an application password.
 	 *
 	 * @since 5.6.0
 	 *
 	 * @param int    $user_id User ID.
 	 * @param string $uuid    The password's uuid.
 	 * @param array  $update  Information about the application password to update.
 	 * @return true|WP_Error True if successful, otherwise a WP_Error instance is returned on error.
 	 */
 	public static function update_application_password( $user_id, $uuid, $update = array() ) {
 		$passwords = static::get_user_application_passwords( $user_id );
 
 		foreach ( $passwords as &$item ) {
 			if ( $item['uuid'] !== $uuid ) {
 				continue;
 			}
 
 			if ( ! empty( $update['name'] ) ) {
 				$update['name'] = sanitize_text_field( $update['name'] );
 			}
 
 			$save = false;
 
 			if ( ! empty( $update['name'] ) && $item['name'] !== $update['name'] ) {
 				$item['name'] = $update['name'];
 				$save         = true;
 			}
 
 			if ( $save ) {
 				$saved = static::set_user_application_passwords( $user_id, $passwords );
 
 				if ( ! $saved ) {
 					return new WP_Error( 'db_error', __( 'Could not save application password.' ) );
 				}
 			}
 
 			/**
 			 * Fires when an application password is updated.
 			 *
 			 * @since 5.6.0
 			 *
 			 * @param int   $user_id The user ID.
 			 * @param array $item    The updated app password details.
 			 * @param array $update  The information to update.
 			 */
 			do_action( 'wp_update_application_password', $user_id, $item, $update );
 
 			return true;
 		}
 
 		return new WP_Error( 'application_password_not_found', __( 'Could not find an application password with that id.' ) );
 	}
 
 	/**
 	 * Records that an application password has been used.
 	 *
 	 * @since 5.6.0
 	 *
 	 * @param int    $user_id User ID.
 	 * @param string $uuid    The password's uuid.
 	 * @return true|WP_Error True if the usage was recorded, a WP_Error if an error occurs.
 	 */
 	public static function record_application_password_usage( $user_id, $uuid ) {
 		$passwords = static::get_user_application_passwords( $user_id );
 
 		foreach ( $passwords as &$password ) {
 			if ( $password['uuid'] !== $uuid ) {
 				continue;
 			}
 
 			// Only record activity once a day.
 			if ( $password['last_used'] + DAY_IN_SECONDS > time() ) {
 				return true;
 			}
 
 			$password['last_used'] = time();
 			$password['last_ip']   = $_SERVER['REMOTE_ADDR'];
 
 			$saved = static::set_user_application_passwords( $user_id, $passwords );
 
 			if ( ! $saved ) {
 				return new WP_Error( 'db_error', __( 'Could not save application password.' ) );
 			}
 
 			return true;
 		}
 
 		// Specified Application Password not found!
 		return new WP_Error( 'application_password_not_found', __( 'Could not find an application password with that id.' ) );
 	}
 
 	/**
 	 * Deletes an application password.
 	 *
 	 * @since 5.6.0
 	 *
 	 * @param int    $user_id User ID.
 	 * @param string $uuid    The password's uuid.
 	 * @return true|WP_Error Whether the password was successfully found and deleted, a WP_Error otherwise.
 	 */
 	public static function delete_application_password( $user_id, $uuid ) {
 		$passwords = static::get_user_application_passwords( $user_id );
 
 		foreach ( $passwords as $key => $item ) {
 			if ( $item['uuid'] === $uuid ) {
 				unset( $passwords[ $key ] );
 				$saved = static::set_user_application_passwords( $user_id, $passwords );
 
 				if ( ! $saved ) {
 					return new WP_Error( 'db_error', __( 'Could not delete application password.' ) );
 				}
 
 				/**
 				 * Fires when an application password is deleted.
 				 *
 				 * @since 5.6.0
 				 *
 				 * @param int   $user_id The user ID.
 				 * @param array $item    The data about the application password.
 				 */
 				do_action( 'wp_delete_application_password', $user_id, $item );
 
 				return true;
 			}
 		}
 
 		return new WP_Error( 'application_password_not_found', __( 'Could not find an application password with that id.' ) );
 	}
 
 	/**
 	 * Deletes all application passwords for the given user.
 	 *
 	 * @since 5.6.0
 	 *
 	 * @param int $user_id User ID.
 	 * @return int|WP_Error The number of passwords that were deleted or a WP_Error on failure.
 	 */
 	public static function delete_all_application_passwords( $user_id ) {
 		$passwords = static::get_user_application_passwords( $user_id );
 
 		if ( $passwords ) {
 			$saved = static::set_user_application_passwords( $user_id, array() );
 
 			if ( ! $saved ) {
 				return new WP_Error( 'db_error', __( 'Could not delete application passwords.' ) );
 			}
 
 			foreach ( $passwords as $item ) {
 				/** This action is documented in wp-includes/class-wp-application-passwords.php */
 				do_action( 'wp_delete_application_password', $user_id, $item );
 			}
 
 			return count( $passwords );
 		}
 
 		return 0;
 	}
 
 	/**
 	 * Sets a users application passwords.
 	 *
 	 * @since 5.6.0
 	 *
 	 * @param int   $user_id   User ID.
 	 * @param array $passwords Application passwords.
 	 *
 	 * @return bool
 	 */
 	protected static function set_user_application_passwords( $user_id, $passwords ) {
 		return update_user_meta( $user_id, static::USERMETA_KEY_APPLICATION_PASSWORDS, $passwords );
 	}
 
 	/**
 	 * Sanitizes and then splits a password into smaller chunks.
 	 *
 	 * @since 5.6.0
 	 *
 	 * @param string $raw_password The raw application password.
 	 * @return string The chunked password.
 	 */
 	public static function chunk_password( $raw_password ) {
 		$raw_password = preg_replace( '/[^a-z\d]/i', '', $raw_password );
 
 		return trim( chunk_split( $raw_password, 4, ' ' ) );
 	}
 }