React Native Requires Chilkat v11.0.0+

Using Client Certificate w/ IMAP SSL

Demonstrates how to use a client-side certificate with an IMAP SSL connection. The SetSslClientCert method is called to specify a certificate to be used for the SSL connection. React Native

import { Cert, CertStore, Email, EmailBundle, Imap, JsonObject, MessageSet } from '@chilkat/react-native'

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

  const imap = new Imap();

  // To use a secure SSL connection, set SSL and the port:
  imap.ssl = true;
  // The typical port for IMAP SSL is 993
  imap.port = 993;

  // Load a certificate from a PFX file and use it.
  // Note: Other methods are available to load pre-installed
  // certificates from registry-based certificate stores.

  // Create an instance of a certificate store object, load a PFX file,
  // locate the certificate we need, and use it for signing.
  // (a PFX file may contain more than one certificate.)
  const certStore = new CertStore();
  // The 1st argument is the filename, the 2nd arg is the 
  // PFX file's password:
  try {
    certStore.loadPfxFile('myCertWithPrivateKey.pfx', 'secret');
  } catch {
    console.log(certStore.lastErrorText);
    return;
  }

  // Find the certificate by the subject common name:
  const jsonCN = new JsonObject();
  jsonCN.updateString('CN', 'cert common name');

  const cert = new Cert();
  try {
    certStore.findCert(jsonCN, cert);
  } catch {
    console.log(certStore.lastErrorText);
    return;
  }

  // If a PFX file is known to contain a single certificate,
  // you may load it directly into a Chilkat certificate object.
  // This snippet of source code shows how:
  const cert2 = new Cert();
  // The 1st argument is the filename, the 2nd arg is the 
  // PFX file's password:
  try {
    cert2.loadPfxFile('myClientCert.pfx', 'secret');
  } catch {
    console.log(cert.lastErrorText);
    return;
  }

  // Use the cert:
  imap.setSslClientCert(cert);

  // Connect to an IMAP server.
  try {
    await imap.connectAsync('imap.example.com');
  } catch {
    console.log(imap.lastErrorText);
    return;
  }

  // Login
  try {
    await imap.loginAsync('myLogin', 'myPassword');
  } catch {
    console.log(imap.lastErrorText);
    return;
  }

  // Select an IMAP mailbox
  try {
    await imap.selectMailboxAsync('Inbox');
  } catch {
    console.log(imap.lastErrorText);
    return;
  }

  // Get the message IDs of all the emails in the mailbox
  const fetchUids = true;
  const messageSet = new MessageSet();
  try {
    await imap.queryMbxAsync('ALL', fetchUids, messageSet);
  } catch {
    console.log(imap.lastErrorText);
    return;
  }

  // Fetch the emails into a bundle object:
  const bundle = new EmailBundle();
  const headersOnly = false;
  try {
    await imap.fetchMsgSetAsync(headersOnly, messageSet, bundle);
  } catch {
    console.log(imap.lastErrorText);
    return;
  }

  // Loop over the bundle and display the FROM and SUBJECT of each.
  const email = new Email();
  let i = 0;
  const numEmails = bundle.messageCount;
  while (i < numEmails) {
    bundle.emailAt(i, email);

    console.log(email.from);
    console.log(email.subject);
    console.log('--');
    i++;
  }

  // Disconnect from the IMAP server.
  await imap.disconnectAsync();
}