React Native

IMAP Login Secure

Demonstrates how to use the LoginSecure method introduced in Chilkat v9.5.0.71. React Native

import { Crypt2, Imap, JsonObject, SecureString } from '@chilkat/react-native'

async function chilkatExample() {
  // This example requires the Chilkat API to have been previously unlocked.
  // See Global Unlock Sample for sample code.

  const imap = new Imap();

  // Connect to an IMAP server..
  imap.ssl = true;
  imap.port = 993;
  try {
    await imap.connectAsync('imap.mail.me.com');
  } catch {
    console.log(imap.lastErrorText);
    return;
  }

  // Imagine we've previously saved our encrypted login and password within a JSON config file
  // that contains this:

  // {
  //   "imap_login": "fLkxsfnVaIWLiL/R32jo6g==",
  //   "imap_password": "/NbaFBoCftBLFf8WBU9Xtw=="
  // }

  const json = new JsonObject();
  json.loadFile('qa_data/passwords/imap.json');

  const crypt = new Crypt2();

  // These are the encryption settings we previously used to encrypt the credentials within the JSON config file.
  crypt.cryptAlgorithm = 'aes';
  crypt.cipherMode = 'cbc';
  crypt.keyLength = 128;
  crypt.setEncodedKey('000102030405060708090A0B0C0D0E0F', 'hex');
  crypt.setEncodedIV('000102030405060708090A0B0C0D0E0F', 'hex');
  crypt.encodingMode = 'base64';

  const ssLogin = new SecureString();
  const ssPassword = new SecureString();

  // Decrypt to the secure string.  (the strings will still held in memory encrypted, but are now encrypted using
  // a randomly generated session key.)
  crypt.decryptSecureENC(json.stringOf('imap_login'), ssLogin);
  crypt.decryptSecureENC(json.stringOf('imap_password'), ssPassword);

  // Pass the credentials to the LoginSecure method:
  try {
    await imap.loginSecureAsync(ssLogin, ssPassword);
  } catch {
    console.log(imap.lastErrorText);
    return;
  }

  // ...

  await imap.disconnectAsync();
}