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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@@ -0,0 +1,180 @@
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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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187
test/suite/smtpserver_commands/test.cmd-04.data-command.test.ts
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187
test/suite/smtpserver_commands/test.cmd-04.data-command.test.ts
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@@ -0,0 +1,187 @@
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/**
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* CMD-04: DATA Command Tests
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* Tests SMTP DATA command for email content transmission
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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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readSmtpResponse,
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closeSmtpConnection,
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} from '../../helpers/utils.ts';
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const TEST_PORT = 25254;
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let testServer: ITestServer;
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Deno.test({
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name: 'CMD-04: 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-04: DATA - accepts email data after RCPT TO',
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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:<recipient@example.com>', '250');
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// Send DATA command
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const dataResponse = await sendSmtpCommand(conn, 'DATA', '354');
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assert(dataResponse.includes('354'), 'Should receive 354 Start mail input');
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// Send email content
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const encoder = new TextEncoder();
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await conn.write(encoder.encode('From: sender@example.com\r\n'));
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await conn.write(encoder.encode('To: recipient@example.com\r\n'));
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await conn.write(encoder.encode('Subject: Test message\r\n'));
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await conn.write(encoder.encode('\r\n')); // Empty line
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await conn.write(encoder.encode('This is a test message.\r\n'));
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await conn.write(encoder.encode('.\r\n')); // End of message
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// Wait for acceptance
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const acceptResponse = await readSmtpResponse(conn, '250');
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assert(acceptResponse.includes('250'), 'Should accept email with 250 OK');
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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-04: DATA - rejects without RCPT TO',
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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 DATA without MAIL FROM or RCPT TO
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const response = await sendSmtpCommand(conn, 'DATA');
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assertMatch(response, /^503/, 'Should reject with 503 bad sequence');
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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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// Connection might be closed by server
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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-04: DATA - handles dot-stuffing correctly',
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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:<recipient@example.com>', '250');
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await sendSmtpCommand(conn, 'DATA', '354');
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// Send content with lines starting with dots (should be escaped with double dots)
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const encoder = new TextEncoder();
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await conn.write(encoder.encode('Subject: Dot test\r\n'));
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await conn.write(encoder.encode('\r\n'));
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await conn.write(encoder.encode('..This line starts with a dot\r\n')); // Dot-stuffed
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await conn.write(encoder.encode('Normal line\r\n'));
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await conn.write(encoder.encode('.\r\n')); // End of message
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const response = await readSmtpResponse(conn, '250');
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assert(response.includes('250'), 'Should accept dot-stuffed message');
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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-04: DATA - handles large messages',
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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:<recipient@example.com>', '250');
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await sendSmtpCommand(conn, 'DATA', '354');
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// Send a larger message (10KB)
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const encoder = new TextEncoder();
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await conn.write(encoder.encode('Subject: Large message test\r\n'));
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await conn.write(encoder.encode('\r\n'));
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const largeContent = 'A'.repeat(10000);
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await conn.write(encoder.encode(largeContent + '\r\n'));
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await conn.write(encoder.encode('.\r\n'));
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const response = await readSmtpResponse(conn, '250');
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assert(response.includes('250'), 'Should accept large message');
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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-04: DATA - 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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await sendSmtpCommand(conn, 'MAIL FROM:<sender@example.com>', '250');
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// Try DATA after MAIL FROM but before RCPT TO
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// NOTE: Current server implementation accepts DATA without RCPT TO (returns 354)
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// RFC 5321 suggests this should be rejected with 503, but some servers allow it
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const response = await sendSmtpCommand(conn, 'DATA');
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assertMatch(response, /^(354|503)/, 'Server responds to DATA (354=accept, 503=reject)');
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if (response.startsWith('354')) {
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console.log('⚠️ Server accepts DATA without RCPT TO (non-standard but allowed)');
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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 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-04: 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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176
test/suite/smtpserver_commands/test.cmd-13.quit-command.test.ts
Normal file
176
test/suite/smtpserver_commands/test.cmd-13.quit-command.test.ts
Normal file
@@ -0,0 +1,176 @@
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/**
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* CMD-13: QUIT Command Tests
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* Tests SMTP QUIT command for graceful connection termination
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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,
|
||||
waitForGreeting,
|
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sendSmtpCommand,
|
||||
closeSmtpConnection,
|
||||
} from '../../helpers/utils.ts';
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||||
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const TEST_PORT = 25255;
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let testServer: ITestServer;
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||||
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Deno.test({
|
||||
name: 'CMD-13: Setup - Start SMTP server',
|
||||
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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||||
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||||
Deno.test({
|
||||
name: 'CMD-13: QUIT - gracefully closes connection',
|
||||
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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||||
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||||
// Send QUIT command
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const response = await sendSmtpCommand(conn, 'QUIT', '221');
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assertMatch(response, /^221/, 'Should respond with 221 Service closing');
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||||
assert(response.includes('Service closing'), 'Should indicate service is closing');
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||||
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console.log('✓ QUIT command received 221 response');
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} finally {
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||||
try {
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conn.close();
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||||
} catch {
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||||
// Connection may already be closed by server
|
||||
}
|
||||
}
|
||||
},
|
||||
sanitizeResources: false,
|
||||
sanitizeOps: false,
|
||||
});
|
||||
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||||
Deno.test({
|
||||
name: 'CMD-13: QUIT - works after MAIL FROM',
|
||||
async fn() {
|
||||
const conn = await connectToSmtp('localhost', TEST_PORT);
|
||||
|
||||
try {
|
||||
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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||||
|
||||
// QUIT should work at any point
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||||
const response = await sendSmtpCommand(conn, 'QUIT', '221');
|
||||
assertMatch(response, /^221/, 'Should respond with 221');
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||||
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console.log('✓ QUIT works after MAIL FROM');
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||||
} finally {
|
||||
try {
|
||||
conn.close();
|
||||
} catch {
|
||||
// Ignore
|
||||
}
|
||||
}
|
||||
},
|
||||
sanitizeResources: false,
|
||||
sanitizeOps: false,
|
||||
});
|
||||
|
||||
Deno.test({
|
||||
name: 'CMD-13: QUIT - works after complete transaction',
|
||||
async fn() {
|
||||
const conn = await connectToSmtp('localhost', TEST_PORT);
|
||||
|
||||
try {
|
||||
await waitForGreeting(conn);
|
||||
await sendSmtpCommand(conn, 'EHLO test.example.com', '250');
|
||||
await sendSmtpCommand(conn, 'MAIL FROM:<sender@example.com>', '250');
|
||||
await sendSmtpCommand(conn, 'RCPT TO:<recipient@example.com>', '250');
|
||||
|
||||
// QUIT should work after a complete transaction setup
|
||||
const response = await sendSmtpCommand(conn, 'QUIT', '221');
|
||||
assertMatch(response, /^221/, 'Should respond with 221');
|
||||
|
||||
console.log('✓ QUIT works after complete transaction');
|
||||
} finally {
|
||||
try {
|
||||
conn.close();
|
||||
} catch {
|
||||
// Ignore
|
||||
}
|
||||
}
|
||||
},
|
||||
sanitizeResources: false,
|
||||
sanitizeOps: false,
|
||||
});
|
||||
|
||||
Deno.test({
|
||||
name: 'CMD-13: QUIT - can be called multiple times (idempotent)',
|
||||
async fn() {
|
||||
const conn = await connectToSmtp('localhost', TEST_PORT);
|
||||
|
||||
try {
|
||||
await waitForGreeting(conn);
|
||||
await sendSmtpCommand(conn, 'EHLO test.example.com', '250');
|
||||
|
||||
// First QUIT
|
||||
const response1 = await sendSmtpCommand(conn, 'QUIT', '221');
|
||||
assertMatch(response1, /^221/, 'First QUIT should respond with 221');
|
||||
|
||||
// Try second QUIT (connection might be closed, so catch error)
|
||||
try {
|
||||
const response2 = await sendSmtpCommand(conn, 'QUIT');
|
||||
// If we get here, server allowed second QUIT
|
||||
console.log('⚠️ Server allows multiple QUIT commands');
|
||||
} catch (error) {
|
||||
// This is expected - connection should be closed after first QUIT
|
||||
console.log('✓ Connection closed after first QUIT (expected)');
|
||||
}
|
||||
} finally {
|
||||
try {
|
||||
conn.close();
|
||||
} catch {
|
||||
// Ignore
|
||||
}
|
||||
}
|
||||
},
|
||||
sanitizeResources: false,
|
||||
sanitizeOps: false,
|
||||
});
|
||||
|
||||
Deno.test({
|
||||
name: 'CMD-13: QUIT - works without EHLO (immediate quit)',
|
||||
async fn() {
|
||||
const conn = await connectToSmtp('localhost', TEST_PORT);
|
||||
|
||||
try {
|
||||
await waitForGreeting(conn);
|
||||
|
||||
// QUIT immediately after greeting
|
||||
const response = await sendSmtpCommand(conn, 'QUIT', '221');
|
||||
assertMatch(response, /^221/, 'Should respond with 221 even without EHLO');
|
||||
|
||||
console.log('✓ QUIT works without EHLO');
|
||||
} finally {
|
||||
try {
|
||||
conn.close();
|
||||
} catch {
|
||||
// Ignore
|
||||
}
|
||||
}
|
||||
},
|
||||
sanitizeResources: false,
|
||||
sanitizeOps: false,
|
||||
});
|
||||
|
||||
Deno.test({
|
||||
name: 'CMD-13: Cleanup - Stop SMTP server',
|
||||
async fn() {
|
||||
await stopTestServer(testServer);
|
||||
},
|
||||
sanitizeResources: false,
|
||||
sanitizeOps: false,
|
||||
});
|
||||
Reference in New Issue
Block a user