Utils for Vereign Mini Product

import { SigningService } from "@vereign/light-utils";

const signingService = new SigningService();

/**
 * [Optional]
 * Define a custom DOM parsing function.
 * By default it's using browser DOM parser.
 */
signingService.helpers.parseHtml = (htmlString) => {
  const jsdom = new JSDOM(htmlString);
  return jsdom.window.document;
};

/**
 * [Optional]
 * Define a custom SHA256 funcion.
 * By default it's using WebCrypto or Node.JS Crypto API
 * The function must properly handle bytes, base64 strings and utf8 strings
 * base64 stirngs must be directly covnerted to bytes
 * Refer to ICryptoService for further details
 */
signingService.helpers.cryptoService.SHA256 = async (value: string) => {
  // returns hash base64 string
};

/**
 * [Required]
 * Define a custom RSA signing function.
 */
signingService.helpers.signRSAExternal = async (value: string) => {
  // returns signature base64 string
};

/**
 * [Optional]
 * Define a function to verify RSA signature.
 * Uses WebCrypto/Node.JS crypto by default
 * Refer to ICryptoService for further details
 */
signingService.helpers.cryptoService.verifyRSASignature = async (
  publicKeyPEM,
  data,
  signature
) => {
  // returns true/false
};

import { StatusesService } from "@vereign/light-utils";

const EMAIL_VENDORS = StatusesService.EMAIL_VENDORS;

const {
  partsSignatures,
  rabinFingerprints,
} = await signingService.signMimeComponents(
  EMAIL_VENDORS.GMAIL,
  senderHtml,
  senderPlain,
  senderAttachments
);

import { StatusesService } from "@vereign/light-utils";

const EMAIL_VENDORS = StatusesService.EMAIL_VENDORS;

const {
  htmlPartsSignatureValid,
  plainPartsSignatureValid,
  pseudoPlainPartsSignatureValid,
  attachmentsPartsSignatureValid,
  severityLevel,
  statusMessage,
} = await signingService.verifyMimeComponents(
  publicKeyBase64,
  EMAIL_VENDORS.GMAIL,
  receiverHtml,
  receiverPlain,
  receiverAttachments,
  partsSignatures,
  rabinFingerprints
);