streamby-core/dist/utils/encryption.js

StreamBy middleware framework for media storage management

"use strict";
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 () {
    var ownKeys = function(o) {
        ownKeys = Object.getOwnPropertyNames || function (o) {
            var ar = [];
            for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
            return ar;
        };
        return ownKeys(o);
    };
    return function (mod) {
        if (mod && mod.__esModule) return mod;
        var result = {};
        if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
        __setModuleDefault(result, mod);
        return result;
    };
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.isEncryptionKeySet = exports.decrypt = exports.encrypt = exports.setEncryptionKey = void 0;
const crypto = __importStar(require("crypto"));
const ALGORITHM = 'aes-256-cbc';
const IV_LENGTH = 16; // For AES, this is always 16
let ENCRYPTION_KEY = undefined;
const setEncryptionKey = (key) => {
    if (key.length !== 64) { // 32 bytes * 2 hex characters per byte
        throw new Error('Invalid encryption key length. Key must be 32 bytes (64 hexadecimal characters).');
    }
    ENCRYPTION_KEY = key;
};
exports.setEncryptionKey = setEncryptionKey;
const encrypt = (text) => {
    if (!ENCRYPTION_KEY) {
        throw new Error('Encryption key is not set. Cannot encrypt credentials.');
    }
    const iv = crypto.randomBytes(IV_LENGTH);
    const cipher = crypto.createCipheriv(ALGORITHM, Buffer.from(ENCRYPTION_KEY, 'hex'), iv);
    let encrypted = cipher.update(text);
    encrypted = Buffer.concat([encrypted, cipher.final()]);
    return iv.toString('hex') + ':' + encrypted.toString('hex');
};
exports.encrypt = encrypt;
const decrypt = (text) => {
    if (!ENCRYPTION_KEY) {
        throw new Error('Encryption key is not set. Cannot decrypt credentials.');
    }
    const textParts = text.split(':');
    const iv = Buffer.from(textParts.shift(), 'hex');
    const encryptedText = Buffer.from(textParts.join(':'), 'hex');
    const decipher = crypto.createDecipheriv(ALGORITHM, Buffer.from(ENCRYPTION_KEY, 'hex'), iv);
    let decrypted = decipher.update(encryptedText);
    decrypted = Buffer.concat([decrypted, decipher.final()]);
    return decrypted.toString();
};
exports.decrypt = decrypt;
const isEncryptionKeySet = () => {
    return !!ENCRYPTION_KEY;
};
exports.isEncryptionKeySet = isEncryptionKeySet;