rfcxml-mcp

/** * Input Validation Utilities */ import { RFC_NUMBER_LIMITS } from '../constants.js'; /** * Validate RFC number * @param rfc - RFC number to validate * @throws Error if invalid */ export function validateRFCNumber(rfc: unknown): asserts rfc is number { if (typeof rfc !== 'number') { throw new Error(`RFC number must be a number, got ${typeof rfc}`); } if (!Number.isInteger(rfc)) { throw new Error(`RFC number must be an integer, got ${rfc}`); } if (rfc < RFC_NUMBER_LIMITS.MIN) { throw new Error(`RFC number must be positive, got ${rfc}`); } if (rfc > RFC_NUMBER_LIMITS.MAX) { throw new Error(`RFC number ${rfc} seems invalid (too large)`); } } /** * Check if RFC number is valid (non-throwing version) */ export function isValidRFCNumber(rfc: unknown): rfc is number { return ( typeof rfc === 'number' && Number.isInteger(rfc) && rfc >= RFC_NUMBER_LIMITS.MIN && rfc <= RFC_NUMBER_LIMITS.MAX ); }