lets-mfa
Version:
Free, secure, and quick way to add MFA to your existing app. No user migrations or re-architecture needed!
60 lines (59 loc) • 3.14 kB
JavaScript
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var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.validateResponseSignature = exports.decryptResponse = void 0;
const jose = __importStar(require("jose"));
function decryptResponse(response, letsMFAConfig, privateKey) {
return __awaiter(this, void 0, void 0, function* () {
const decodedResponse = Buffer.from(response, "base64").toString("utf8");
const parsedResponse = JSON.parse(decodedResponse);
const decryptedText = yield jose.flattenedDecrypt(parsedResponse, privateKey, {
contentEncryptionAlgorithms: [letsMFAConfig.encryptionAlgorithm],
keyManagementAlgorithms: [letsMFAConfig.algorithm],
});
const decodedString = new TextDecoder().decode(decryptedText.plaintext);
return JSON.parse(decodedString);
});
}
exports.decryptResponse = decryptResponse;
/** Throws an error if the signature is not valid, otherwise returns the payload content */
function validateResponseSignature(response, letsMFAConfig) {
return __awaiter(this, void 0, void 0, function* () {
const { payload, protectedHeader } = yield jose.flattenedVerify(response, yield jose.importJWK(letsMFAConfig.publicKey));
const objectString = new TextDecoder().decode(payload);
const jsonObject = JSON.parse(objectString);
return jsonObject;
});
}
exports.validateResponseSignature = validateResponseSignature;