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<?php /** * WP_Application_Passwords class * * @package WordPress * @since 5.6.0 / /* * Class for displaying, modifying, and sanitizing application passwords. * * @package WordPress / #[AllowDynamicProperties] 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 are 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 application 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. * @since 6.8.0 The hashed password value now uses wp_fast_hash() instead of phpass. * * @param int $user_id User ID. * @param array $args { * Arguments used to create the application password. * * @type string $name The name of the application password. * @type string $app_id A UUID provided by the application to uniquely identify it. * } * @return array\|WP_Error { * Application password details, or a WP_Error instance if an error occurs. * * @type string $0 The generated application password in plain text. * @type array $1 { * The details about the created password. * * @type string $uuid The unique identifier for the application password. * @type string $app_id A UUID provided by the application to uniquely identify it. * @type string $name The name of the application password. * @type string $password A one-way hash of the password. * @type int $created Unix timestamp of when the password was created. * @type null $last_used Null. * @type null $last_ip Null. * } * } / 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 ) ); } $new_password = wp_generate_password( static::PW_LENGTH, false ); $hashed_password = self::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 * @since 6.8.0 The hashed password value now uses wp_fast_hash() instead of phpass. * * @param int $user_id The user ID. * @param array $new_item { * The details about the created password. * * @type string $uuid The unique identifier for the application password. * @type string $app_id A UUID provided by the application to uniquely identify it. * @type string $name The name of the application password. * @type string $password A one-way hash of the password. * @type int $created Unix timestamp of when the password was created. * @type null $last_used Null. * @type null $last_ip Null. * } * @param string $new_password The generated application password in plain text. * @param array $args { * Arguments used to create the application password. * * @type string $name The name of the application password. * @type string $app_id A UUID provided by the application to uniquely identify it. * } / 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 application passwords. * * @type array ...$0 { * @type string $uuid The unique identifier for the application password. * @type string $app_id A UUID provided by the application to uniquely identify it. * @type string $name The name of the application password. * @type string $password A one-way hash of the password. * @type int $created Unix timestamp of when the password was created. * @type int\|null $last_used The Unix timestamp of the GMT date the application password was last used. * @type string\|null $last_ip The IP address the application password was last used by. * } * } / 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. * * @type string $uuid The unique identifier for the application password. * @type string $app_id A UUID provided by the application to uniquely identify it. * @type string $name The name of the application password. * @type string $password A one-way hash of the password. * @type int $created Unix timestamp of when the password was created. * @type int\|null $last_used The Unix timestamp of the GMT date the application password was last used. * @type string\|null $last_ip The IP address the application password was last used by. * } / 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 an application password with the given name exists for this user. * * @since 5.7.0 * * @param int $user_id User ID. * @param string $name Application name. * @return bool Whether the provided application name exists. / 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 * @since 6.8.0 The actual password should now be hashed using wp_fast_hash(). * * @param int $user_id User ID. * @param string $uuid The password's UUID. * @param array $update { * Information about the application password to update. * * @type string $uuid The unique identifier for the application password. * @type string $app_id A UUID provided by the application to uniquely identify it. * @type string $name The name of the application password. * @type string $password A one-way hash of the password. * @type int $created Unix timestamp of when the password was created. * @type int\|null $last_used The Unix timestamp of the GMT date the application password was last used. * @type string\|null $last_ip The IP address the application password was last used by. * } * @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 * @since 6.8.0 The password is now hashed using wp_fast_hash() instead of phpass. * Existing passwords may still be hashed using phpass. * * @param int $user_id The user ID. * @param array $item { * The updated application password details. * * @type string $uuid The unique identifier for the application password. * @type string $app_id A UUID provided by the application to uniquely identify it. * @type string $name The name of the application password. * @type string $password A one-way hash of the password. * @type int $created Unix timestamp of when the password was created. * @type int\|null $last_used The Unix timestamp of the GMT date the application password was last used. * @type string\|null $last_ip The IP address the application password was last used by. * } * @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 user's application passwords. * * @since 5.6.0 * * @param int $user_id User ID. * @param array $passwords { * The list of application passwords. * * @type array ...$0 { * @type string $uuid The unique identifier for the application password. * @type string $app_id A UUID provided by the application to uniquely identify it. * @type string $name The name of the application password. * @type string $password A one-way hash of the password. * @type int $created Unix timestamp of when the password was created. * @type int\|null $last_used The Unix timestamp of the GMT date the application password was last used. * @type string\|null $last_ip The IP address the application password was last used by. * } * } * @return int\|bool User meta ID if the key didn't exist (ie. this is the first time that an application password * has been saved for the user), true on successful update, false on failure or if the value passed * is the same as the one that is already in the database. / 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( #[\SensitiveParameter] $raw_password ) { $raw_password = preg_replace( '/[^a-z\d]/i', '', $raw_password ); return trim( chunk_split( $raw_password, 4, ' ' ) ); } /* * Hashes a plaintext application password. * * @since 6.8.0 * * @param string $password Plaintext password. * @return string Hashed password. / public static function hash_password( #[\SensitiveParameter] string $password ): string { return wp_fast_hash( $password ); } /* * Checks a plaintext application password against a hashed password. * * @since 6.8.0 * * @param string $password Plaintext password. * @param string $hash Hash of the password to check against. * @return bool Whether the password matches the hashed password. / public static function check_password( #[\SensitiveParameter] string $password, string $hash ): bool { if ( ! str_starts_with( $hash, '$generic$' ) ) { / * If the hash doesn't start with `$generic$`, it is a hash created with `wp_hash_password()`. * This is the case for application passwords created before 6.8.0. */ return wp_check_password( $password, $hash ); } return wp_verify_fast_hash( $password, $hash ); } }

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