feat: add more auth providers and cleanup google auth

it's no longer needed to use stunnel ;-)

__tests__/auth/google-ldap.test.ts

@@ -0,0 +1,21 @@
+import 'mocha';
+import { expect } from 'chai';
+import * as fs from 'fs';
+import { GoogleLDAPAuth } from '../../src/auth/GoogleLDAPAuth';
+
+describe('test google ldap auth', function() {
+	this.timeout(10000);
+	it('authenticate against ldap server', async () => {
+		const auth = new GoogleLDAPAuth({
+			base: 'dc=hokify,dc=com',
+			tlsOptions: {
+				key: fs.readFileSync('./ldap.gsuite.hokify.com.40567.key'),
+				cert: fs.readFileSync('./ldap.gsuite.hokify.com.40567.crt')
+			}
+		});
+
+		const result = await auth.authenticate('username', 'password');
+
+		expect(result).to.equal(true);
+	});
+});

__tests__/auth/imap.test.ts

@@ -0,0 +1,18 @@
+import 'mocha';
+import { expect } from 'chai';
+import { IMAPAuth } from '../../src/auth/IMAPAuth';
+
+describe('test imap auth', () => {
+	it('authenticate against imap server', async () => {
+		const auth = new IMAPAuth({
+			host: 'imap.gmail.com',
+			port: 993,
+			useSecureTransport: true,
+			validHosts: ['gmail.com']
+		});
+
+		const result = await auth.authenticate('username', 'password');
+
+		expect(result).to.equal(true);
+	});
+});

__tests__/auth/ldap.test.ts

@@ -0,0 +1,23 @@
+import 'mocha';
+import { expect } from 'chai';
+import * as fs from 'fs';
+import { LDAPAuth } from '../../src/auth/LDAPAuth';
+
+describe('test ldap auth', function() {
+	this.timeout(10000);
+	it('authenticate against ldap server', async () => {
+		const auth = new LDAPAuth({
+			url: 'ldaps://ldap.google.com:636',
+			base: 'dc=hokify,dc=com',
+			tlsOptions: {
+				servername: 'ldap.google.com',
+				key: fs.readFileSync('./ldap.gsuite.hokify.com.40567.key'),
+				cert: fs.readFileSync('./ldap.gsuite.hokify.com.40567.crt'),
+			}
+		});
+
+		const result = await auth.authenticate('username', 'password');
+
+		expect(result).to.equal(true);
+	});
+});

__tests__/auth/smtp.test.ts

@@ -0,0 +1,18 @@
+import 'mocha';
+import { expect } from 'chai';
+import { SMTPAuth } from '../../src/auth/SMTPAuth';
+
+describe('test smtp auth', () => {
+	it('authenticate against smtp server', async () => {
+		const auth = new SMTPAuth({
+			host: 'smtp.gmail.com',
+			port: 465,
+			useSecureTransport: true,
+			validHosts: ['gmail.com']
+		});
+
+		const result = await auth.authenticate('username', 'password');
+
+		expect(result).to.equal(true);
+	});
+});