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Philipp Kunz
2025-05-24 14:39:48 +00:00
parent dc5c0b2584
commit 6e19e30f87
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test/suite/smtpserver_commands/test.cmd-03.rcpt-to.ts Normal file
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import { tap, expect } from '@git.zone/tstest/tapbundle';
import * as net from 'net';
import { startTestServer, stopTestServer } from '../../helpers/server.loader.js';
const TEST_PORT = 2525;
let testServer;
const TEST_TIMEOUT = 10000;
tap.test('prepare server', async () => {
testServer = await startTestServer({ port: TEST_PORT });
await new Promise(resolve => setTimeout(resolve, 100));
});
tap.test('RCPT TO - should accept valid recipient after MAIL FROM', async (tools) => {
const done = tools.defer();
const socket = net.createConnection({
host: 'localhost',
port: TEST_PORT,
timeout: TEST_TIMEOUT
});
let receivedData = '';
let currentStep = 'connecting';
socket.on('data', (data) => {
receivedData += data.toString();
if (currentStep === 'connecting' && receivedData.includes('220')) {
currentStep = 'ehlo';
receivedData = '';
socket.write('EHLO test.example.com\r\n');
} else if (currentStep === 'ehlo' && receivedData.includes('250 ')) {
currentStep = 'mail_from';
receivedData = '';
socket.write('MAIL FROM:<sender@example.com>\r\n');
} else if (currentStep === 'mail_from' && receivedData.includes('250')) {
currentStep = 'rcpt_to';
receivedData = '';
socket.write('RCPT TO:<recipient@example.com>\r\n');
} else if (currentStep === 'rcpt_to' && receivedData.includes('250')) {
expect(receivedData).toInclude('250');
socket.write('QUIT\r\n');
setTimeout(() => {
socket.destroy();
done.resolve();
}, 100);
}
});
socket.on('error', (error) => {
done.reject(error);
});
socket.on('timeout', () => {
socket.destroy();
done.reject(new Error(`Connection timeout at step: ${currentStep}`));
});
await done.promise;
});
tap.test('RCPT TO - should reject without MAIL FROM', async (tools) => {
const done = tools.defer();
const socket = net.createConnection({
host: 'localhost',
port: TEST_PORT,
timeout: TEST_TIMEOUT
});
let receivedData = '';
let currentStep = 'connecting';
socket.on('data', (data) => {
receivedData += data.toString();
if (currentStep === 'connecting' && receivedData.includes('220')) {
currentStep = 'ehlo';
receivedData = '';
socket.write('EHLO test.example.com\r\n');
} else if (currentStep === 'ehlo' && receivedData.includes('250 ')) {
currentStep = 'rcpt_to_without_mail';
receivedData = '';
// Try RCPT TO without MAIL FROM
socket.write('RCPT TO:<recipient@example.com>\r\n');
} else if (currentStep === 'rcpt_to_without_mail' && receivedData.includes('503')) {
// Should get 503 (bad sequence)
expect(receivedData).toInclude('503');
socket.write('QUIT\r\n');
setTimeout(() => {
socket.destroy();
done.resolve();
}, 100);
}
});
socket.on('error', (error) => {
done.reject(error);
});
socket.on('timeout', () => {
socket.destroy();
done.reject(new Error(`Connection timeout at step: ${currentStep}`));
});
await done.promise;
});
tap.test('RCPT TO - should accept multiple recipients', async (tools) => {
const done = tools.defer();
const socket = net.createConnection({
host: 'localhost',
port: TEST_PORT,
timeout: TEST_TIMEOUT
});
let receivedData = '';
let currentStep = 'connecting';
let recipientCount = 0;
const maxRecipients = 3;
socket.on('data', (data) => {
receivedData += data.toString();
if (currentStep === 'connecting' && receivedData.includes('220')) {
currentStep = 'ehlo';
receivedData = '';
socket.write('EHLO test.example.com\r\n');
} else if (currentStep === 'ehlo' && receivedData.includes('250 ')) {
currentStep = 'mail_from';
receivedData = '';
socket.write('MAIL FROM:<sender@example.com>\r\n');
} else if (currentStep === 'mail_from' && receivedData.includes('250')) {
currentStep = 'rcpt_to';
receivedData = '';
socket.write(`RCPT TO:<recipient${recipientCount + 1}@example.com>\r\n`);
} else if (currentStep === 'rcpt_to' && receivedData.includes('250')) {
recipientCount++;
receivedData = '';
if (recipientCount < maxRecipients) {
socket.write(`RCPT TO:<recipient${recipientCount + 1}@example.com>\r\n`);
} else {
expect(recipientCount).toEqual(maxRecipients);
socket.write('QUIT\r\n');
setTimeout(() => {
socket.destroy();
done.resolve();
}, 100);
}
}
});
socket.on('error', (error) => {
done.reject(error);
});
socket.on('timeout', () => {
socket.destroy();
done.reject(new Error(`Connection timeout at step: ${currentStep}`));
});
await done.promise;
});
tap.test('RCPT TO - should reject invalid email format', async (tools) => {
const done = tools.defer();
const socket = net.createConnection({
host: 'localhost',
port: TEST_PORT,
timeout: TEST_TIMEOUT
});
let receivedData = '';
let currentStep = 'connecting';
let testIndex = 0;
const invalidRecipients = [
'notanemail',
'@example.com',
'user@',
'user@.com',
'user@domain..com'
];
socket.on('data', (data) => {
receivedData += data.toString();
if (currentStep === 'connecting' && receivedData.includes('220')) {
currentStep = 'ehlo';
receivedData = '';
socket.write('EHLO test.example.com\r\n');
} else if (currentStep === 'ehlo' && receivedData.includes('250 ')) {
currentStep = 'mail_from';
receivedData = '';
socket.write('MAIL FROM:<sender@example.com>\r\n');
} else if (currentStep === 'mail_from' && receivedData.includes('250')) {
currentStep = 'rcpt_to';
receivedData = '';
console.log(`Testing invalid recipient: "${invalidRecipients[testIndex]}"`);
socket.write(`RCPT TO:<${invalidRecipients[testIndex]}>\r\n`);
} else if (currentStep === 'rcpt_to' && (receivedData.includes('501') || receivedData.includes('5'))) {
// Should reject with 5xx error
console.log(` Response: ${receivedData.trim()}`);
testIndex++;
if (testIndex < invalidRecipients.length) {
currentStep = 'rset';
receivedData = '';
socket.write('RSET\r\n');
} else {
socket.write('QUIT\r\n');
setTimeout(() => {
socket.destroy();
done.resolve();
}, 100);
}
} else if (currentStep === 'rset' && receivedData.includes('250')) {
currentStep = 'mail_from';
receivedData = '';
socket.write('MAIL FROM:<sender@example.com>\r\n');
}
});
socket.on('error', (error) => {
done.reject(error);
});
socket.on('timeout', () => {
socket.destroy();
done.reject(new Error(`Connection timeout at step: ${currentStep}`));
});
await done.promise;
});
tap.test('RCPT TO - should handle SIZE parameter', async (tools) => {
const done = tools.defer();
const socket = net.createConnection({
host: 'localhost',
port: TEST_PORT,
timeout: TEST_TIMEOUT
});
let receivedData = '';
let currentStep = 'connecting';
socket.on('data', (data) => {
receivedData += data.toString();
if (currentStep === 'connecting' && receivedData.includes('220')) {
currentStep = 'ehlo';
receivedData = '';
socket.write('EHLO test.example.com\r\n');
} else if (currentStep === 'ehlo' && receivedData.includes('250 ')) {
currentStep = 'mail_from';
receivedData = '';
socket.write('MAIL FROM:<sender@example.com>\r\n');
} else if (currentStep === 'mail_from' && receivedData.includes('250')) {
currentStep = 'rcpt_to_with_size';
receivedData = '';
// RCPT TO doesn't typically have SIZE parameter, but test server response
socket.write('RCPT TO:<recipient@example.com> SIZE=1024\r\n');
} else if (currentStep === 'rcpt_to_with_size') {
// Server might accept or reject the parameter
expect(receivedData).toMatch(/^(250|555|501)/);
socket.write('QUIT\r\n');
setTimeout(() => {
socket.destroy();
done.resolve();
}, 100);
}
});
socket.on('error', (error) => {
done.reject(error);
});
socket.on('timeout', () => {
socket.destroy();
done.reject(new Error(`Connection timeout at step: ${currentStep}`));
});
await done.promise;
});
tap.test('cleanup server', async () => {
await stopTestServer(testServer);
});
tap.start();