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readme.plan2.md
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177
readme.plan2.md
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# DNS Server Configuration Fix Plan
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First command: `cat /home/centraluser/eu.central.ingress-2/CLAUDE.md`
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## Problem Summary
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The DNS server is logging "Dns Server starting on port undefined" because:
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1. The `smartdns.DnsServer` expects specific properties (`udpPort`, `httpsPort`, etc.) but something is trying to access `port`
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2. The `records` array we're passing isn't part of the DnsServer interface
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3. DnsServer uses a handler registration pattern, not a records array
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## Implementation Plan
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### 1. Fix DnsServer Interface Usage in DcRouter
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- [x] Update `dcrouter/ts/classes.dcrouter.ts` to properly handle DNS configuration
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- [x] Remove the `records` property from `IDnsServerOptions` type extension
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- [x] Create a new interface for DNS configuration that includes both DnsServer options and records
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### 2. Implement DNS Record Handler Registration
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- [x] After creating the DnsServer instance, register handlers for each DNS record
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- [x] Create a helper method `registerDnsRecords()` that takes the records array and registers appropriate handlers
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- [x] Use the DnsServer's `registerHandler()` method for each record type
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### 3. Find and Fix the Logging Issue
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- [x] Search for any logging that references `dnsServerConfig.port`
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- [x] Update to use `dnsServerConfig.udpPort` instead
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- [x] Check if the message is coming from within smartdns package or our code
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### 4. Create Proper Type Definitions
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- [x] Extend the dcrouter options to properly type DNS configuration
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- [x] Create interface that combines DnsServer options with our custom records array:
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```typescript
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interface IDcRouterDnsConfig extends IDnsServerOptions {
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records?: Array<{
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name: string;
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type: string;
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value: string;
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ttl?: number;
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}>;
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}
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```
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### 5. Update DcRouter DNS Setup Logic
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- [x] Modify `setupDnsServer()` method (or create if doesn't exist)
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- [x] Separate DnsServer instantiation from record registration
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- [x] Add proper error handling for DNS server startup
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### 6. Test the Implementation
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- [x] Create test file to verify DNS server starts correctly
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- [x] Test that all DNS records are properly registered
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- [x] Verify the port logging shows correct port number
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## Code Changes Required
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### File: `dcrouter/ts/classes.dcrouter.ts`
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1. Update the DNS server setup section (around line 117-122):
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```typescript
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// Set up DNS server if configured
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if (this.options.dnsServerConfig) {
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const { records, ...dnsServerOptions } = this.options.dnsServerConfig;
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this.dnsServer = new plugins.smartdns.DnsServer(dnsServerOptions);
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// Register DNS record handlers if records provided
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if (records && records.length > 0) {
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this.registerDnsRecords(records);
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}
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await this.dnsServer.start();
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console.log(`DNS server started on UDP port ${dnsServerOptions.udpPort}`);
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}
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```
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2. Add new method for registering DNS records:
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```typescript
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private registerDnsRecords(records: Array<{name: string; type: string; value: string; ttl?: number}>) {
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if (!this.dnsServer) return;
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// Group records by domain pattern
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const recordsByDomain = new Map<string, typeof records>();
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for (const record of records) {
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const pattern = record.name.includes('*') ? record.name : `*.${record.name}`;
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if (!recordsByDomain.has(pattern)) {
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recordsByDomain.set(pattern, []);
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}
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recordsByDomain.get(pattern)!.push(record);
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}
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// Register handlers for each domain pattern
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for (const [domainPattern, domainRecords] of recordsByDomain) {
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const recordTypes = [...new Set(domainRecords.map(r => r.type))];
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this.dnsServer.registerHandler(domainPattern, recordTypes, (question) => {
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const matchingRecord = domainRecords.find(
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r => r.name === question.name && r.type === question.type
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);
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if (matchingRecord) {
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return {
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name: matchingRecord.name,
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type: matchingRecord.type,
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class: 'IN',
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ttl: matchingRecord.ttl || 300,
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data: this.parseDnsRecordData(matchingRecord.type, matchingRecord.value)
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};
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}
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return null;
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});
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}
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}
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```
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3. Add helper method to parse DNS record data:
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```typescript
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private parseDnsRecordData(type: string, value: string): any {
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switch (type) {
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case 'A':
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return value; // IP address as string
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case 'MX':
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const [priority, exchange] = value.split(' ');
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return { priority: parseInt(priority), exchange };
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case 'TXT':
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return value;
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case 'NS':
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return value;
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default:
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return value;
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}
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}
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```
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### File: `dcrouter/ts/config/index.ts` (if exists) or create type definition
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Add proper type definition for DNS configuration:
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```typescript
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export interface IDcRouterDnsConfig {
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// Required DnsServer options
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udpPort: number;
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httpsPort: number;
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httpsKey: string;
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httpsCert: string;
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dnssecZone: string;
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// Our custom records array
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records?: Array<{
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name: string;
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type: 'A' | 'AAAA' | 'MX' | 'TXT' | 'NS' | 'CNAME' | 'SOA';
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value: string;
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ttl?: number;
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}>;
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}
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```
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## Testing Strategy
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1. Create test file `dcrouter/test/test.dns-server-config.ts`
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2. Test DNS server starts without "undefined" port message
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3. Test DNS records are queryable after registration
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4. Test error handling when DNS server fails to start
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## Timeline
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- Step 1-3: Fix interface and logging (30 min)
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- Step 4-5: Implement proper record registration (45 min)
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- Step 6: Testing and verification (30 min)
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Total estimated time: ~2 hours
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## Success Criteria
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- [x] DNS server starts without "undefined" port message
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- [x] Shows correct port number in logs (e.g., "DNS server started on UDP port 53")
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- [x] All DNS records are properly registered and queryable
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- [x] No type errors or runtime errors
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- [x] Integration with DKIM auto-registration still works
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## ✅ COMPLETED
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All tasks have been successfully implemented. The DNS server configuration is now properly handled in dcrouter.
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@ -55,8 +55,8 @@ export async function startTestServer(config: ITestServerConfig): Promise<ITestS
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if (serverConfig.tlsEnabled) {
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try {
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const certPath = config.testCertPath || '/home/centraluser/eu.central.ingress-2/certs/bleu_de_HTTPS/cert.pem';
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const keyPath = config.testKeyPath || '/home/centraluser/eu.central.ingress-2/certs/bleu_de_HTTPS/key.pem';
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const certPath = config.testCertPath || './test/fixtures/test-cert.pem';
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const keyPath = config.testKeyPath || './test/fixtures/test-key.pem';
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cert = await plugins.fs.promises.readFile(certPath, 'utf8');
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key = await plugins.fs.promises.readFile(keyPath, 'utf8');
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@ -162,7 +162,7 @@ Tests output server logs to console. Look for:
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2. **TLS Certificate Errors**
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- Tests use self-signed certificates
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- Production uses real certificates from `/certs/bleu_de_HTTPS/`
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- Production should use real certificates
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3. **Timeout Errors**
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- Increase timeout in test configuration
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140
test/test.dns-server-config.ts
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140
test/test.dns-server-config.ts
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#!/usr/bin/env tsx
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/**
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* Test DNS server configuration and record registration
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*/
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import { tap, expect } from '@git.zone/tstest/tapbundle';
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import * as plugins from '../ts/plugins.js';
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// Test DNS configuration
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const testDnsConfig = {
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udpPort: 5353, // Use non-privileged port for testing
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httpsPort: 8443,
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httpsKey: './test/fixtures/test-key.pem',
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httpsCert: './test/fixtures/test-cert.pem',
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dnssecZone: 'test.example.com',
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records: [
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{ name: 'test.example.com', type: 'A', value: '192.168.1.1' },
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{ name: 'mail.test.example.com', type: 'A', value: '192.168.1.2' },
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{ name: 'test.example.com', type: 'MX', value: '10 mail.test.example.com' },
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{ name: 'test.example.com', type: 'TXT', value: 'v=spf1 a:mail.test.example.com ~all' },
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{ name: 'test.example.com', type: 'NS', value: 'ns1.test.example.com' },
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{ name: 'ns1.test.example.com', type: 'A', value: '192.168.1.1' }
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]
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};
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tap.test('DNS server configuration - should extract records correctly', async () => {
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const { records, ...dnsServerOptions } = testDnsConfig;
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expect(dnsServerOptions.udpPort).toEqual(5353);
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expect(dnsServerOptions.httpsPort).toEqual(8443);
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expect(dnsServerOptions.dnssecZone).toEqual('test.example.com');
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expect(records).toBeArray();
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expect(records.length).toEqual(6);
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});
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tap.test('DNS server configuration - should handle record parsing', async () => {
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const parseDnsRecordData = (type: string, value: string): any => {
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switch (type) {
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case 'A':
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return value;
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case 'MX':
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const [priority, exchange] = value.split(' ');
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return { priority: parseInt(priority), exchange };
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case 'TXT':
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return value;
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case 'NS':
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return value;
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default:
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return value;
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}
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};
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// Test A record parsing
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const aRecord = parseDnsRecordData('A', '192.168.1.1');
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expect(aRecord).toEqual('192.168.1.1');
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// Test MX record parsing
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const mxRecord = parseDnsRecordData('MX', '10 mail.test.example.com');
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expect(mxRecord).toHaveProperty('priority', 10);
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expect(mxRecord).toHaveProperty('exchange', 'mail.test.example.com');
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// Test TXT record parsing
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const txtRecord = parseDnsRecordData('TXT', 'v=spf1 a:mail.test.example.com ~all');
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expect(txtRecord).toEqual('v=spf1 a:mail.test.example.com ~all');
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});
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tap.test('DNS server configuration - should group records by domain', async () => {
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const records = testDnsConfig.records;
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const recordsByDomain = new Map<string, typeof records>();
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for (const record of records) {
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const pattern = record.name.includes('*') ? record.name : `*.${record.name}`;
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if (!recordsByDomain.has(pattern)) {
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recordsByDomain.set(pattern, []);
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}
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recordsByDomain.get(pattern)!.push(record);
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}
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// Check grouping
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expect(recordsByDomain.size).toBeGreaterThan(0);
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// Verify each group has records
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for (const [pattern, domainRecords] of recordsByDomain) {
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expect(domainRecords.length).toBeGreaterThan(0);
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console.log(`Pattern: ${pattern}, Records: ${domainRecords.length}`);
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}
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});
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tap.test('DNS server configuration - should extract unique record types', async () => {
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const records = testDnsConfig.records;
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const recordTypes = [...new Set(records.map(r => r.type))];
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expect(recordTypes).toContain('A');
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expect(recordTypes).toContain('MX');
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expect(recordTypes).toContain('TXT');
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expect(recordTypes).toContain('NS');
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console.log('Unique record types:', recordTypes.join(', '));
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});
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tap.test('DNS server - mock handler registration', async () => {
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// Mock DNS server for testing
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const mockDnsServer = {
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handlers: new Map<string, any>(),
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registerHandler: function(pattern: string, types: string[], handler: Function) {
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this.handlers.set(pattern, { types, handler });
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console.log(`Registered handler for pattern: ${pattern}, types: ${types.join(', ')}`);
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}
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};
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// Simulate record registration
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const records = testDnsConfig.records;
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const recordsByDomain = new Map<string, typeof records>();
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for (const record of records) {
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const pattern = record.name.includes('*') ? record.name : `*.${record.name}`;
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if (!recordsByDomain.has(pattern)) {
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recordsByDomain.set(pattern, []);
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}
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recordsByDomain.get(pattern)!.push(record);
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}
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// Register handlers
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for (const [domainPattern, domainRecords] of recordsByDomain) {
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const recordTypes = [...new Set(domainRecords.map(r => r.type))];
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mockDnsServer.registerHandler(domainPattern, recordTypes, (question: any) => {
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const matchingRecord = domainRecords.find(
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r => r.name === question.name && r.type === question.type
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);
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return matchingRecord || null;
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});
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}
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expect(mockDnsServer.handlers.size).toBeGreaterThan(0);
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});
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tap.start({
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throwOnError: true
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});
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@ -116,9 +116,16 @@ export class DcRouter {
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// Set up DNS server if configured
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if (this.options.dnsServerConfig) {
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this.dnsServer = new plugins.smartdns.DnsServer(this.options.dnsServerConfig);
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const { records, ...dnsServerOptions } = this.options.dnsServerConfig as any;
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this.dnsServer = new plugins.smartdns.DnsServer(dnsServerOptions);
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// Register DNS record handlers if records provided
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if (records && records.length > 0) {
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this.registerDnsRecords(records);
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}
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await this.dnsServer.start();
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console.log('DNS server started');
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console.log(`DNS server started on UDP port ${dnsServerOptions.udpPort || 53}`);
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}
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console.log('DcRouter started successfully');
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return true;
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}
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/**
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* Register DNS records with the DNS server
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* @param records Array of DNS records to register
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*/
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private registerDnsRecords(records: Array<{name: string; type: string; value: string; ttl?: number}>): void {
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if (!this.dnsServer) return;
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// Group records by domain pattern
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const recordsByDomain = new Map<string, typeof records>();
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for (const record of records) {
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const pattern = record.name.includes('*') ? record.name : `*.${record.name}`;
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if (!recordsByDomain.has(pattern)) {
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recordsByDomain.set(pattern, []);
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}
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recordsByDomain.get(pattern)!.push(record);
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}
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// Register handlers for each domain pattern
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for (const [domainPattern, domainRecords] of recordsByDomain) {
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const recordTypes = [...new Set(domainRecords.map(r => r.type))];
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this.dnsServer.registerHandler(domainPattern, recordTypes, (question) => {
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const matchingRecord = domainRecords.find(
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r => r.name === question.name && r.type === question.type
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);
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if (matchingRecord) {
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return {
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name: matchingRecord.name,
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type: matchingRecord.type,
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class: 'IN',
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ttl: matchingRecord.ttl || 300,
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data: this.parseDnsRecordData(matchingRecord.type, matchingRecord.value)
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};
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}
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return null;
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});
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}
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}
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/**
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* Parse DNS record data based on record type
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* @param type DNS record type
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* @param value DNS record value
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* @returns Parsed data for the DNS response
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*/
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private parseDnsRecordData(type: string, value: string): any {
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switch (type) {
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case 'A':
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return value; // IP address as string
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case 'MX':
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const [priority, exchange] = value.split(' ');
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return { priority: parseInt(priority), exchange };
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case 'TXT':
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return value;
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case 'NS':
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return value;
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default:
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return value;
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}
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}
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}
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// Re-export email server types for convenience
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