Add comprehensive SMTP command tests for RCPT TO, DATA, QUIT, TLS, and basic email sending
- Implement CMD-03 tests for RCPT TO command, validating recipient addresses, handling multiple recipients, and enforcing command sequence. - Implement CMD-04 tests for DATA command, ensuring proper email content transmission, handling of dot-stuffing, large messages, and correct command sequence. - Implement CMD-13 tests for QUIT command, verifying graceful connection termination and idempotency. - Implement CM-01 tests for TLS connections, including STARTTLS capability and direct TLS connections. - Implement EP-01 tests for basic email sending, covering complete SMTP transaction flow, MIME attachments, HTML emails, custom headers, and minimal emails.
This commit is contained in:
180
test/suite/smtpserver_commands/test.cmd-03.rcpt-to.test.ts
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180
test/suite/smtpserver_commands/test.cmd-03.rcpt-to.test.ts
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/**
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* CMD-03: RCPT TO Command Tests
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* Tests SMTP RCPT TO command for recipient validation
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*/
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import { assert, assertMatch } from '@std/assert';
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import { startTestServer, stopTestServer, type ITestServer } from '../../helpers/server.loader.ts';
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import {
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connectToSmtp,
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waitForGreeting,
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sendSmtpCommand,
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closeSmtpConnection,
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} from '../../helpers/utils.ts';
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const TEST_PORT = 25253;
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let testServer: ITestServer;
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Deno.test({
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name: 'CMD-03: Setup - Start SMTP server',
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async fn() {
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testServer = await startTestServer({ port: TEST_PORT });
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assert(testServer, 'Test server should be created');
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},
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sanitizeResources: false,
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sanitizeOps: false,
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});
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Deno.test({
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name: 'CMD-03: RCPT TO - accepts valid recipient addresses',
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async fn() {
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const conn = await connectToSmtp('localhost', TEST_PORT);
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try {
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await waitForGreeting(conn);
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await sendSmtpCommand(conn, 'EHLO test.example.com', '250');
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await sendSmtpCommand(conn, 'MAIL FROM:<sender@example.com>', '250');
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const validRecipients = [
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'user@example.com',
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'test.user+tag@example.com',
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'user@[192.168.1.1]', // IP literal
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'user@subdomain.example.com',
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'multiple_recipients@example.com',
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];
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for (const recipient of validRecipients) {
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console.log(`✓ Testing valid recipient: ${recipient}`);
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const response = await sendSmtpCommand(conn, `RCPT TO:<${recipient}>`, '250');
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assert(response.startsWith('250'), `Should accept valid recipient: ${recipient}`);
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}
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} finally {
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await closeSmtpConnection(conn);
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}
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},
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sanitizeResources: false,
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sanitizeOps: false,
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});
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Deno.test({
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name: 'CMD-03: RCPT TO - accepts multiple recipients',
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async fn() {
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const conn = await connectToSmtp('localhost', TEST_PORT);
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try {
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await waitForGreeting(conn);
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await sendSmtpCommand(conn, 'EHLO test.example.com', '250');
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await sendSmtpCommand(conn, 'MAIL FROM:<sender@example.com>', '250');
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// Add multiple recipients
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await sendSmtpCommand(conn, 'RCPT TO:<user1@example.com>', '250');
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await sendSmtpCommand(conn, 'RCPT TO:<user2@example.com>', '250');
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await sendSmtpCommand(conn, 'RCPT TO:<user3@example.com>', '250');
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console.log('✓ Successfully added 3 recipients');
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} finally {
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await closeSmtpConnection(conn);
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}
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},
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sanitizeResources: false,
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sanitizeOps: false,
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});
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Deno.test({
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name: 'CMD-03: RCPT TO - rejects invalid recipient addresses',
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async fn() {
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const conn = await connectToSmtp('localhost', TEST_PORT);
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try {
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await waitForGreeting(conn);
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await sendSmtpCommand(conn, 'EHLO test.example.com', '250');
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await sendSmtpCommand(conn, 'MAIL FROM:<sender@example.com>', '250');
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const invalidRecipients = [
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'notanemail',
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'@example.com',
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'user@',
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'user space@example.com',
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];
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for (const recipient of invalidRecipients) {
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console.log(`✗ Testing invalid recipient: ${recipient}`);
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try {
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const response = await sendSmtpCommand(conn, `RCPT TO:<${recipient}>`);
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assertMatch(response, /^5\d\d/, `Should reject invalid recipient: ${recipient}`);
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} catch (error) {
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console.log(` Recipient caused error (acceptable): ${error.message}`);
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}
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}
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} finally {
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try {
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await closeSmtpConnection(conn);
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} catch {
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// Ignore close errors
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}
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}
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},
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sanitizeResources: false,
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sanitizeOps: false,
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});
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Deno.test({
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name: 'CMD-03: RCPT TO - enforces correct sequence',
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async fn() {
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const conn = await connectToSmtp('localhost', TEST_PORT);
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try {
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await waitForGreeting(conn);
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await sendSmtpCommand(conn, 'EHLO test.example.com', '250');
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// Try RCPT TO before MAIL FROM
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const response = await sendSmtpCommand(conn, 'RCPT TO:<user@example.com>');
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assertMatch(response, /^503/, 'Should reject RCPT TO before MAIL FROM');
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} finally {
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try {
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await closeSmtpConnection(conn);
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} catch {
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// Ignore errors
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}
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}
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},
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sanitizeResources: false,
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sanitizeOps: false,
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});
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Deno.test({
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name: 'CMD-03: RCPT TO - RSET clears recipients',
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async fn() {
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const conn = await connectToSmtp('localhost', TEST_PORT);
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try {
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await waitForGreeting(conn);
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await sendSmtpCommand(conn, 'EHLO test.example.com', '250');
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await sendSmtpCommand(conn, 'MAIL FROM:<sender@example.com>', '250');
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await sendSmtpCommand(conn, 'RCPT TO:<user1@example.com>', '250');
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await sendSmtpCommand(conn, 'RCPT TO:<user2@example.com>', '250');
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// Reset should clear recipients
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await sendSmtpCommand(conn, 'RSET', '250');
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// Should be able to start new transaction
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await sendSmtpCommand(conn, 'MAIL FROM:<newsender@example.com>', '250');
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await sendSmtpCommand(conn, 'RCPT TO:<newrecipient@example.com>', '250');
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console.log('✓ RSET successfully cleared recipients');
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} finally {
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await closeSmtpConnection(conn);
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}
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},
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sanitizeResources: false,
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sanitizeOps: false,
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});
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Deno.test({
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name: 'CMD-03: Cleanup - Stop SMTP server',
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async fn() {
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await stopTestServer(testServer);
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},
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sanitizeResources: false,
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sanitizeOps: false,
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});
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