[SYNC] feat: Add audit, MFA, and feature flags modules

- Add audit module with controllers, DTOs, middleware and services
- Add MFA controller, routes and services
- Add feature flags module with controllers, DTOs and services
- Update audit entities with proper TypeORM decorators
- Update auth service and DTOs
- Update main.ts configuration

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
Adrian Flores Cortes 2026-02-03 08:02:07 -06:00
parent e38d3c3864
commit f9ec80b037
46 changed files with 3264 additions and 81 deletions

262
package-lock.json generated
View File

@ -10,6 +10,8 @@
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@ -18,7 +20,9 @@
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@ -34,6 +38,8 @@
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@ -1723,6 +1739,16 @@
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@ -1757,6 +1783,12 @@
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@ -2729,6 +2766,23 @@
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@ -5310,6 +5379,12 @@
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@ -5913,7 +5987,6 @@
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@ -6171,6 +6244,15 @@
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@ -6311,6 +6393,141 @@
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@ -6420,6 +6637,12 @@
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@ -6916,6 +7145,18 @@
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@ -7798,6 +8039,15 @@
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@ -7832,6 +8082,12 @@
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View File

@ -16,6 +16,8 @@
},
"dependencies": {
"bcryptjs": "^2.4.3",
"class-transformer": "^0.5.1",
"class-validator": "^0.14.3",
"compression": "^1.7.4",
"cors": "^2.8.5",
"dotenv": "^16.3.1",
@ -24,7 +26,9 @@
"jsonwebtoken": "^9.0.2",
"morgan": "^1.10.0",
"pg": "^8.11.3",
"qrcode": "^1.5.4",
"reflect-metadata": "^0.2.1",
"speakeasy": "^2.0.0",
"typeorm": "^0.3.17",
"uuid": "^9.0.1",
"winston": "^3.11.0",
@ -40,6 +44,8 @@
"@types/morgan": "^1.9.9",
"@types/node": "^20.10.0",
"@types/pg": "^8.16.0",
"@types/qrcode": "^1.5.6",
"@types/speakeasy": "^2.0.10",
"@types/uuid": "^9.0.7",
"@typescript-eslint/eslint-plugin": "^6.14.0",
"@typescript-eslint/parser": "^6.14.0",

View File

@ -1,6 +1,6 @@
/**
/**
* Main Entry Point
* Mecánicas Diesel Backend - ERP Suite
* Mecánicas Diesel Backend - ERP Suite
*/
import 'reflect-metadata';
@ -49,6 +49,14 @@ import { createDiagnosisController as createFieldDiagnosisController } from './m
import { createSyncController } from './modules/field-service/controllers/sync.controller';
import { createCheckinController } from './modules/field-service/controllers/checkin.controller';
// Audit & Feature Flags
import { AuditLog, EntityChange, LoginHistory, SensitiveDataAccess, DataExport, PermissionChange, ConfigChange } from './modules/audit/entities/index';
import { Flag, TenantOverride } from './modules/feature-flags/entities/index';
import auditRoutes from './modules/audit/audit.routes';
import featureFlagsRoutes from './modules/feature-flags/feature-flags.routes';
import mfaRoutes from './modules/auth/mfa.routes';
import { featureFlagsMiddleware } from './modules/feature-flags/middleware/feature-flags.middleware';
// Payment Terminals Module
import { PaymentTerminalsModule } from './modules/payment-terminals';
@ -65,6 +73,7 @@ import { Quote } from './modules/service-management/entities/quote.entity';
import { WorkBay } from './modules/service-management/entities/work-bay.entity';
import { Service } from './modules/service-management/entities/service.entity';
import { Vehicle } from './modules/vehicle-management/entities/vehicle.entity';
import { VehicleDocument } from './modules/vehicle-management/entities/vehicle-document.entity';
import { Fleet } from './modules/vehicle-management/entities/fleet.entity';
import { VehicleEngine } from './modules/vehicle-management/entities/vehicle-engine.entity';
import { EngineCatalog } from './modules/vehicle-management/entities/engine-catalog.entity';
@ -148,6 +157,7 @@ const AppDataSource = new DataSource({
Service,
// Vehicle Management
Vehicle,
VehicleDocument,
Fleet,
VehicleEngine,
EngineCatalog,
@ -196,8 +206,19 @@ const AppDataSource = new DataSource({
FieldEvidence,
FieldCheckin,
OfflineQueueItem,
// Audit
AuditLog,
EntityChange,
LoginHistory,
SensitiveDataAccess,
DataExport,
PermissionChange,
ConfigChange,
// Feature Flags
Flag,
TenantOverride,
],
synchronize: process.env.NODE_ENV === 'development',
synchronize: process.env.DB_SYNCHRONIZE === 'true',
logging: process.env.NODE_ENV === 'development',
});
@ -228,10 +249,16 @@ async function bootstrap() {
try {
// Initialize database connection
await AppDataSource.initialize();
console.log('📦 Database connection established');
console.log('📦 Database connection established');
// Register API routes
app.use('/api/v1/auth', createAuthController(AppDataSource));
app.use('/api/v1/auth/mfa', mfaRoutes);
app.use('/api/v1/audit', auditRoutes);
app.use('/api/v1/feature-flags', featureFlagsRoutes);
app.use(featureFlagsMiddleware);
app.use('/api/v1/users', createUsersController(AppDataSource));
app.use('/api/v1/service-orders', createServiceOrderController(AppDataSource));
app.use('/api/v1/quotes', createQuoteController(AppDataSource));
@ -247,21 +274,21 @@ async function bootstrap() {
app.use('/api/v1/gps/positions', createGpsPositionController(AppDataSource));
app.use('/api/v1/gps/geofences', createGeofenceController(AppDataSource));
app.use('/api/v1/gps/routes', createRouteSegmentController(AppDataSource));
console.log('📡 GPS module initialized');
console.log('📡 GPS module initialized');
// Assets Module Routes
app.use('/api/v1/assets', createAssetController(AppDataSource));
app.use('/api/v1/assets/assignments', createAssetAssignmentController(AppDataSource));
app.use('/api/v1/assets/audits', createAssetAuditController(AppDataSource));
app.use('/api/v1/assets/maintenance', createAssetMaintenanceController(AppDataSource));
console.log('📦 Assets module initialized');
console.log('📦 Assets module initialized');
// Dispatch Module Routes
app.use('/api/v1/dispatch', createDispatchController(AppDataSource));
app.use('/api/v1/dispatch/skills', createSkillController(AppDataSource));
app.use('/api/v1/dispatch/shifts', createShiftController(AppDataSource));
app.use('/api/v1/dispatch/rules', createRuleController(AppDataSource));
console.log('📋 Dispatch module initialized');
console.log('📋 Dispatch module initialized');
// Field Service Module Routes
app.use('/api/v1/field/checklists', createChecklistController(AppDataSource));
@ -269,18 +296,18 @@ async function bootstrap() {
app.use('/api/v1/field/diagnosis', createFieldDiagnosisController(AppDataSource));
app.use('/api/v1/field/sync', createSyncController(AppDataSource));
app.use('/api/v1/field/checkins', createCheckinController(AppDataSource));
console.log('📱 Field Service module initialized');
console.log('📱 Field Service module initialized');
// Payment Terminals Module
const paymentTerminals = new PaymentTerminalsModule({ dataSource: AppDataSource });
app.use('/api/v1', paymentTerminals.router);
app.use('/webhooks', paymentTerminals.webhookRouter);
console.log('💳 Payment Terminals module initialized');
console.log('💳 Payment Terminals module initialized');
// API documentation endpoint
app.get('/api/v1', (_req, res) => {
res.json({
name: 'Mecánicas Diesel API',
name: 'Mecánicas Diesel API',
version: '1.0.0',
endpoints: {
auth: '/api/v1/auth',
@ -342,10 +369,10 @@ async function bootstrap() {
// Start server
app.listen(PORT, () => {
console.log(`🔧 Mecánicas Diesel Backend running on port ${PORT}`);
console.log(`📊 Environment: ${process.env.NODE_ENV || 'development'}`);
console.log(`🏥 Health check: http://localhost:${PORT}/health`);
console.log(`📚 API Root: http://localhost:${PORT}/api/v1`);
console.log(`🔧 Mecánicas Diesel Backend running on port ${PORT}`);
console.log(`📊 Environment: ${process.env.NODE_ENV || 'development'}`);
console.log(`🏥 Health check: http://localhost:${PORT}/health`);
console.log(`📚 API Root: http://localhost:${PORT}/api/v1`);
});
} catch (error) {
console.error('Failed to start server:', error);
@ -354,3 +381,5 @@ async function bootstrap() {
}
bootstrap();
export { AppDataSource };

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@ -0,0 +1,67 @@
import { Response, NextFunction } from 'express';
import { AuthRequest } from '../../shared/types/index';
import { auditService } from './services/audit.instance';
export const auditController = {
/**
* Get audit logs with filters
*/
async getLogs(req: AuthRequest, res: Response, next: NextFunction) {
try {
const {
userId,
entityType,
action,
startDate,
endDate,
page = 1,
limit = 20
} = req.query;
const filters = {
userId: userId as string,
entityType: entityType as string,
action: action as string,
startDate: startDate ? new Date(startDate as string) : undefined,
endDate: endDate ? new Date(endDate as string) : undefined,
};
const result = await auditService.findAuditLogs(
req.user!.tenantId,
filters,
{ page: Number(page), limit: Number(limit) }
);
res.json({
success: true,
data: result.data,
total: result.total,
page: Number(page),
limit: Number(limit)
});
} catch (error) {
next(error);
}
},
/**
* Get logs for a specific entity
*/
async getEntityLogs(req: AuthRequest, res: Response, next: NextFunction) {
try {
const { entityType, entityId } = req.params;
const result = await auditService.findAuditLogsByEntity(
req.user!.tenantId,
entityType,
entityId
);
res.json({
success: true,
data: result
});
} catch (error) {
next(error);
}
}
};

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@ -0,0 +1,70 @@
import { Router } from 'express';
import { DataSource } from 'typeorm';
import { AuditService } from './services';
import { AuditController } from './controllers';
import {
AuditLog,
EntityChange,
LoginHistory,
SensitiveDataAccess,
DataExport,
PermissionChange,
ConfigChange,
} from './entities';
export interface AuditModuleOptions {
dataSource: DataSource;
basePath?: string;
}
export class AuditModule {
public router: Router;
public auditService: AuditService;
private dataSource: DataSource;
private basePath: string;
constructor(options: AuditModuleOptions) {
this.dataSource = options.dataSource;
this.basePath = options.basePath || '';
this.router = Router();
this.initializeServices();
this.initializeRoutes();
}
private initializeServices(): void {
const auditLogRepository = this.dataSource.getRepository(AuditLog);
const entityChangeRepository = this.dataSource.getRepository(EntityChange);
const loginHistoryRepository = this.dataSource.getRepository(LoginHistory);
const sensitiveDataAccessRepository = this.dataSource.getRepository(SensitiveDataAccess);
const dataExportRepository = this.dataSource.getRepository(DataExport);
const permissionChangeRepository = this.dataSource.getRepository(PermissionChange);
const configChangeRepository = this.dataSource.getRepository(ConfigChange);
this.auditService = new AuditService(
auditLogRepository,
entityChangeRepository,
loginHistoryRepository,
sensitiveDataAccessRepository,
dataExportRepository,
permissionChangeRepository,
configChangeRepository
);
}
private initializeRoutes(): void {
const auditController = new AuditController(this.auditService);
this.router.use(`${this.basePath}/audit`, auditController.router);
}
static getEntities(): Function[] {
return [
AuditLog,
EntityChange,
LoginHistory,
SensitiveDataAccess,
DataExport,
PermissionChange,
ConfigChange,
];
}
}

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@ -0,0 +1,15 @@
import { Router } from 'express';
import { auditController } from './audit.controller';
import { authMiddleware } from '../../shared/middleware/auth.middleware';
const router = Router();
router.use(authMiddleware);
// List logs (add permission check later, e.g. 'audit.read')
router.get('/', (req, res, next) => auditController.getLogs(req, res, next));
// Entity logs
router.get('/:entityType/:entityId', (req, res, next) => auditController.getEntityLogs(req, res, next));
export default router;

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@ -0,0 +1,335 @@
import { Request, Response, NextFunction, Router } from 'express';
import { AuditService, AuditLogFilters } from '../services/audit.service';
export class AuditController {
public router: Router;
constructor(private readonly auditService: AuditService) {
this.router = Router();
this.initializeRoutes();
}
private initializeRoutes(): void {
// Audit Logs
this.router.get('/logs', this.findAuditLogs.bind(this));
this.router.get('/logs/entity/:entityType/:entityId', this.findAuditLogsByEntity.bind(this));
this.router.post('/logs', this.createAuditLog.bind(this));
// Entity Changes
this.router.get('/changes/:entityType/:entityId', this.findEntityChanges.bind(this));
this.router.get('/changes/:entityType/:entityId/version/:version', this.getEntityVersion.bind(this));
this.router.post('/changes', this.createEntityChange.bind(this));
// Login History
this.router.get('/logins/user/:userId', this.findLoginHistory.bind(this));
this.router.get('/logins/user/:userId/active-sessions', this.getActiveSessionsCount.bind(this));
this.router.post('/logins', this.createLoginHistory.bind(this));
this.router.post('/logins/:sessionId/logout', this.markSessionLogout.bind(this));
// Sensitive Data Access
this.router.get('/sensitive-access', this.findSensitiveDataAccess.bind(this));
this.router.post('/sensitive-access', this.logSensitiveDataAccess.bind(this));
// Data Exports
this.router.get('/exports', this.findUserDataExports.bind(this));
this.router.get('/exports/:id', this.findDataExport.bind(this));
this.router.post('/exports', this.createDataExport.bind(this));
this.router.patch('/exports/:id/status', this.updateDataExportStatus.bind(this));
// Permission Changes
this.router.get('/permission-changes', this.findPermissionChanges.bind(this));
this.router.post('/permission-changes', this.logPermissionChange.bind(this));
// Config Changes
this.router.get('/config-changes', this.findConfigChanges.bind(this));
this.router.post('/config-changes', this.logConfigChange.bind(this));
}
// ============================================
// AUDIT LOGS
// ============================================
private async findAuditLogs(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const tenantId = req.headers['x-tenant-id'] as string;
const filters: AuditLogFilters = {
userId: req.query.userId as string,
entityType: req.query.entityType as string,
action: req.query.action as string,
category: req.query.category as string,
ipAddress: req.query.ipAddress as string,
};
if (req.query.startDate) filters.startDate = new Date(req.query.startDate as string);
if (req.query.endDate) filters.endDate = new Date(req.query.endDate as string);
const page = parseInt(req.query.page as string) || 1;
const limit = parseInt(req.query.limit as string) || 50;
const result = await this.auditService.findAuditLogs(tenantId, filters, { page, limit });
res.json({ data: result.data, total: result.total, page, limit });
} catch (error) {
next(error);
}
}
private async findAuditLogsByEntity(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const tenantId = req.headers['x-tenant-id'] as string;
const { entityType, entityId } = req.params;
const logs = await this.auditService.findAuditLogsByEntity(tenantId, entityType, entityId);
res.json({ data: logs, total: logs.length });
} catch (error) {
next(error);
}
}
private async createAuditLog(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const tenantId = req.headers['x-tenant-id'] as string;
const log = await this.auditService.createAuditLog(tenantId, req.body);
res.status(201).json({ data: log });
} catch (error) {
next(error);
}
}
// ============================================
// ENTITY CHANGES
// ============================================
private async findEntityChanges(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const tenantId = req.headers['x-tenant-id'] as string;
const { entityType, entityId } = req.params;
const changes = await this.auditService.findEntityChanges(tenantId, entityType, entityId);
res.json({ data: changes, total: changes.length });
} catch (error) {
next(error);
}
}
private async getEntityVersion(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const tenantId = req.headers['x-tenant-id'] as string;
const { entityType, entityId, version } = req.params;
const change = await this.auditService.getEntityVersion(
tenantId,
entityType,
entityId,
parseInt(version)
);
if (!change) {
res.status(404).json({ error: 'Version not found' });
return;
}
res.json({ data: change });
} catch (error) {
next(error);
}
}
private async createEntityChange(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const tenantId = req.headers['x-tenant-id'] as string;
const change = await this.auditService.createEntityChange(tenantId, req.body);
res.status(201).json({ data: change });
} catch (error) {
next(error);
}
}
// ============================================
// LOGIN HISTORY
// ============================================
private async findLoginHistory(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const tenantId = req.headers['x-tenant-id'] as string;
const { userId } = req.params;
const limit = parseInt(req.query.limit as string) || 20;
const history = await this.auditService.findLoginHistory(userId, tenantId, limit);
res.json({ data: history, total: history.length });
} catch (error) {
next(error);
}
}
private async getActiveSessionsCount(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const { userId } = req.params;
const count = await this.auditService.getActiveSessionsCount(userId);
res.json({ data: { activeSessions: count } });
} catch (error) {
next(error);
}
}
private async createLoginHistory(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const login = await this.auditService.createLoginHistory(req.body);
res.status(201).json({ data: login });
} catch (error) {
next(error);
}
}
private async markSessionLogout(_req: Request, res: Response, _next: NextFunction): Promise<void> {
// Note: Session logout tracking requires a separate Session entity
// LoginHistory only tracks login attempts, not active sessions
res.status(501).json({
error: 'Session logout tracking not implemented',
message: 'Use the Auth module session endpoints for logout tracking',
});
}
// ============================================
// SENSITIVE DATA ACCESS
// ============================================
private async findSensitiveDataAccess(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const tenantId = req.headers['x-tenant-id'] as string;
const filters: { userId?: string; dataType?: string; startDate?: Date; endDate?: Date } = {
userId: req.query.userId as string,
dataType: req.query.dataType as string,
};
if (req.query.startDate) filters.startDate = new Date(req.query.startDate as string);
if (req.query.endDate) filters.endDate = new Date(req.query.endDate as string);
const access = await this.auditService.findSensitiveDataAccess(tenantId, filters);
res.json({ data: access, total: access.length });
} catch (error) {
next(error);
}
}
private async logSensitiveDataAccess(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const tenantId = req.headers['x-tenant-id'] as string;
const access = await this.auditService.logSensitiveDataAccess(tenantId, req.body);
res.status(201).json({ data: access });
} catch (error) {
next(error);
}
}
// ============================================
// DATA EXPORTS
// ============================================
private async findUserDataExports(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const tenantId = req.headers['x-tenant-id'] as string;
const userId = req.headers['x-user-id'] as string;
const exports = await this.auditService.findUserDataExports(tenantId, userId);
res.json({ data: exports, total: exports.length });
} catch (error) {
next(error);
}
}
private async findDataExport(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const { id } = req.params;
const exportRecord = await this.auditService.findDataExport(id);
if (!exportRecord) {
res.status(404).json({ error: 'Export not found' });
return;
}
res.json({ data: exportRecord });
} catch (error) {
next(error);
}
}
private async createDataExport(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const tenantId = req.headers['x-tenant-id'] as string;
const exportRecord = await this.auditService.createDataExport(tenantId, req.body);
res.status(201).json({ data: exportRecord });
} catch (error) {
next(error);
}
}
private async updateDataExportStatus(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const { id } = req.params;
const { status, ...updates } = req.body;
const exportRecord = await this.auditService.updateDataExportStatus(id, status, updates);
if (!exportRecord) {
res.status(404).json({ error: 'Export not found' });
return;
}
res.json({ data: exportRecord });
} catch (error) {
next(error);
}
}
// ============================================
// PERMISSION CHANGES
// ============================================
private async findPermissionChanges(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const tenantId = req.headers['x-tenant-id'] as string;
const targetUserId = req.query.targetUserId as string;
const changes = await this.auditService.findPermissionChanges(tenantId, targetUserId);
res.json({ data: changes, total: changes.length });
} catch (error) {
next(error);
}
}
private async logPermissionChange(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const tenantId = req.headers['x-tenant-id'] as string;
const change = await this.auditService.logPermissionChange(tenantId, req.body);
res.status(201).json({ data: change });
} catch (error) {
next(error);
}
}
// ============================================
// CONFIG CHANGES
// ============================================
private async findConfigChanges(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const tenantId = req.headers['x-tenant-id'] as string;
const configType = req.query.configType as string;
const changes = await this.auditService.findConfigChanges(tenantId, configType);
res.json({ data: changes, total: changes.length });
} catch (error) {
next(error);
}
}
private async logConfigChange(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const tenantId = req.headers['x-tenant-id'] as string;
const change = await this.auditService.logConfigChange(tenantId, req.body);
res.status(201).json({ data: change });
} catch (error) {
next(error);
}
}
}

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@ -0,0 +1 @@
export { AuditController } from './audit.controller';

View File

@ -0,0 +1,346 @@
import {
IsString,
IsOptional,
IsBoolean,
IsNumber,
IsArray,
IsObject,
IsUUID,
IsEnum,
IsIP,
MaxLength,
MinLength,
} from 'class-validator';
// ============================================
// AUDIT LOG DTOs
// ============================================
export class CreateAuditLogDto {
@IsOptional()
@IsUUID()
userId?: string;
@IsString()
@MaxLength(20)
action: string;
@IsOptional()
@IsString()
@MaxLength(30)
category?: string;
@IsOptional()
@IsString()
@MaxLength(100)
entityType?: string;
@IsOptional()
@IsUUID()
entityId?: string;
@IsOptional()
@IsString()
description?: string;
@IsOptional()
@IsObject()
oldValues?: Record<string, any>;
@IsOptional()
@IsObject()
newValues?: Record<string, any>;
@IsOptional()
@IsObject()
metadata?: Record<string, any>;
@IsOptional()
@IsString()
@MaxLength(45)
ipAddress?: string;
@IsOptional()
@IsString()
@MaxLength(500)
userAgent?: string;
@IsOptional()
@IsString()
@MaxLength(100)
requestId?: string;
}
// ============================================
// ENTITY CHANGE DTOs
// ============================================
export class CreateEntityChangeDto {
@IsString()
@MaxLength(100)
entityType: string;
@IsUUID()
entityId: string;
@IsString()
@MaxLength(20)
changeType: string;
@IsOptional()
@IsUUID()
changedBy?: string;
@IsNumber()
version: number;
@IsOptional()
@IsArray()
@IsString({ each: true })
changedFields?: string[];
@IsOptional()
@IsObject()
previousData?: Record<string, any>;
@IsOptional()
@IsObject()
newData?: Record<string, any>;
@IsOptional()
@IsString()
changeReason?: string;
}
// ============================================
// LOGIN HISTORY DTOs
// ============================================
export class CreateLoginHistoryDto {
@IsUUID()
userId: string;
@IsOptional()
@IsUUID()
tenantId?: string;
@IsString()
@MaxLength(20)
status: string;
@IsOptional()
@IsString()
@MaxLength(30)
authMethod?: string;
@IsOptional()
@IsString()
@MaxLength(30)
mfaMethod?: string;
@IsOptional()
@IsBoolean()
mfaUsed?: boolean;
@IsOptional()
@IsString()
@MaxLength(45)
ipAddress?: string;
@IsOptional()
@IsString()
@MaxLength(500)
userAgent?: string;
@IsOptional()
@IsString()
@MaxLength(100)
deviceFingerprint?: string;
@IsOptional()
@IsString()
@MaxLength(100)
location?: string;
@IsOptional()
@IsString()
@MaxLength(100)
sessionId?: string;
@IsOptional()
@IsString()
failureReason?: string;
}
// ============================================
// SENSITIVE DATA ACCESS DTOs
// ============================================
export class CreateSensitiveDataAccessDto {
@IsUUID()
userId: string;
@IsString()
@MaxLength(50)
dataType: string;
@IsString()
@MaxLength(20)
accessType: string;
@IsOptional()
@IsString()
@MaxLength(100)
entityType?: string;
@IsOptional()
@IsUUID()
entityId?: string;
@IsOptional()
@IsArray()
@IsString({ each: true })
fieldsAccessed?: string[];
@IsOptional()
@IsString()
accessReason?: string;
@IsOptional()
@IsBoolean()
wasExported?: boolean;
@IsOptional()
@IsString()
@MaxLength(45)
ipAddress?: string;
}
// ============================================
// DATA EXPORT DTOs
// ============================================
export class CreateDataExportDto {
@IsString()
@MaxLength(30)
exportType: string;
@IsString()
@MaxLength(20)
format: string;
@IsOptional()
@IsArray()
@IsString({ each: true })
entities?: string[];
@IsOptional()
@IsObject()
filters?: Record<string, any>;
@IsOptional()
@IsArray()
@IsString({ each: true })
fields?: string[];
@IsOptional()
@IsString()
exportReason?: string;
}
export class UpdateDataExportStatusDto {
@IsString()
@MaxLength(20)
status: string;
@IsOptional()
@IsString()
filePath?: string;
@IsOptional()
@IsNumber()
fileSize?: number;
@IsOptional()
@IsNumber()
recordCount?: number;
@IsOptional()
@IsString()
errorMessage?: string;
}
// ============================================
// PERMISSION CHANGE DTOs
// ============================================
export class CreatePermissionChangeDto {
@IsUUID()
targetUserId: string;
@IsUUID()
changedBy: string;
@IsString()
@MaxLength(20)
changeType: string;
@IsString()
@MaxLength(30)
scope: string;
@IsOptional()
@IsString()
@MaxLength(100)
resourceType?: string;
@IsOptional()
@IsUUID()
resourceId?: string;
@IsOptional()
@IsArray()
@IsString({ each: true })
previousPermissions?: string[];
@IsOptional()
@IsArray()
@IsString({ each: true })
newPermissions?: string[];
@IsOptional()
@IsString()
changeReason?: string;
}
// ============================================
// CONFIG CHANGE DTOs
// ============================================
export class CreateConfigChangeDto {
@IsString()
@MaxLength(30)
configType: string;
@IsString()
@MaxLength(200)
configKey: string;
@IsUUID()
changedBy: string;
@IsNumber()
version: number;
@IsOptional()
@IsObject()
previousValue?: Record<string, any>;
@IsOptional()
@IsObject()
newValue?: Record<string, any>;
@IsOptional()
@IsString()
changeReason?: string;
}

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@ -0,0 +1,10 @@
export {
CreateAuditLogDto,
CreateEntityChangeDto,
CreateLoginHistoryDto,
CreateSensitiveDataAccessDto,
CreateDataExportDto,
UpdateDataExportStatusDto,
CreatePermissionChangeDto,
CreateConfigChangeDto,
} from './audit.dto';

View File

@ -1,11 +1,3 @@
/**
* AuditLog Entity
* General activity tracking with full request context
* Compatible with erp-core audit-log.entity
*
* @module Audit
*/
import {
Entity,
PrimaryGeneratedColumn,

View File

@ -1,11 +1,3 @@
/**
* ConfigChange Entity
* System configuration change auditing
* Compatible with erp-core config-change.entity
*
* @module Audit
*/
import {
Entity,
PrimaryGeneratedColumn,

View File

@ -1,11 +1,3 @@
/**
* DataExport Entity
* GDPR/reporting data export request management
* Compatible with erp-core data-export.entity
*
* @module Audit
*/
import {
Entity,
PrimaryGeneratedColumn,

View File

@ -1,11 +1,3 @@
/**
* EntityChange Entity
* Data modification versioning and change history
* Compatible with erp-core entity-change.entity
*
* @module Audit
*/
import {
Entity,
PrimaryGeneratedColumn,

View File

@ -1,7 +1,3 @@
/**
* Audit Entities - Export
*/
export { AuditLog, AuditAction, AuditCategory, AuditStatus } from './audit-log.entity';
export { EntityChange, ChangeType } from './entity-change.entity';
export { LoginHistory, LoginStatus, AuthMethod, MfaMethod } from './login-history.entity';

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@ -1,11 +1,3 @@
/**
* LoginHistory Entity
* Authentication event tracking with device, location and risk scoring
* Compatible with erp-core login-history.entity
*
* @module Audit
*/
import {
Entity,
PrimaryGeneratedColumn,

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@ -1,11 +1,3 @@
/**
* PermissionChange Entity
* Access control change auditing
* Compatible with erp-core permission-change.entity
*
* @module Audit
*/
import {
Entity,
PrimaryGeneratedColumn,

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@ -1,11 +1,3 @@
/**
* SensitiveDataAccess Entity
* Security/compliance logging for PII, financial, medical and credential access
* Compatible with erp-core sensitive-data-access.entity
*
* @module Audit
*/
import {
Entity,
PrimaryGeneratedColumn,

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@ -0,0 +1,5 @@
export { AuditModule, AuditModuleOptions } from './audit.module';
export * from './entities';
export * from './services';
export * from './controllers';
export * from './dto';

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@ -0,0 +1,61 @@
import { Response, NextFunction } from 'express';
import { AuthRequest } from '../../../shared/types/index';
import { auditService } from '../services/audit.instance';
export const auditMiddleware = (action?: string, resourceType?: string) => {
return async (req: AuthRequest, res: Response, next: NextFunction) => {
// Solo auditamos si hay usuario y tenant (request autenticado)
if (!req.user) {
return next();
}
const originalSend = res.send;
let responseBody: any;
// Intercept response to log status and body (optional)
res.send = function (body) {
responseBody = body;
return originalSend.apply(res, arguments as any);
};
res.on('finish', () => {
// Logic to determine action if not provided
let derivedAction = action;
if (!derivedAction) {
if (req.method === 'POST') derivedAction = 'CREATE';
else if (req.method === 'PUT' || req.method === 'PATCH') derivedAction = 'UPDATE';
else if (req.method === 'DELETE') derivedAction = 'DELETE';
else derivedAction = 'READ';
}
// Logic to determine resourceType if not provided
let derivedResource = resourceType;
if (!derivedResource) {
// Try to guess from URL: /api/v1/users -> users
const parts = req.baseUrl.split('/');
derivedResource = parts[parts.length - 1] || 'UNKNOWN';
}
try {
auditService.createAuditLog(req.user!.tenantId, {
userId: req.user!.userId,
action: derivedAction as any,
resourceType: derivedResource,
resourceId: req.params.id,
ipAddress: req.ip,
userAgent: req.get('User-Agent'),
newValues: req.method !== 'GET' ? req.body : undefined,
metadata: {
method: req.method,
url: req.originalUrl,
statusCode: res.statusCode
}
}).catch(err => console.error('Audit log error', err));
} catch (err) {
console.error('Audit middleware error', err);
}
});
next();
};
};

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@ -0,0 +1,33 @@
import { AppDataSource } from '../../../main';
import {
AuditLog,
EntityChange,
LoginHistory,
SensitiveDataAccess,
DataExport,
PermissionChange,
ConfigChange,
} from '../entities/index';
import { AuditService } from './audit.service';
let _auditService: AuditService | null = null;
export const auditService = {
get instance(): AuditService {
if (!_auditService) {
_auditService = new AuditService(
AppDataSource.getRepository(AuditLog),
AppDataSource.getRepository(EntityChange),
AppDataSource.getRepository(LoginHistory),
AppDataSource.getRepository(SensitiveDataAccess),
AppDataSource.getRepository(DataExport),
AppDataSource.getRepository(PermissionChange),
AppDataSource.getRepository(ConfigChange)
);
}
return _auditService;
},
createAuditLog: (...args: Parameters<AuditService['createAuditLog']>) => auditService.instance.createAuditLog(...args),
findAuditLogs: (...args: Parameters<AuditService['findAuditLogs']>) => auditService.instance.findAuditLogs(...args),
findAuditLogsByEntity: (...args: Parameters<AuditService['findAuditLogsByEntity']>) => auditService.instance.findAuditLogsByEntity(...args),
};

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@ -0,0 +1,303 @@
import { Repository, FindOptionsWhere, Between, LessThanOrEqual, MoreThanOrEqual } from 'typeorm';
import {
AuditLog,
EntityChange,
LoginHistory,
SensitiveDataAccess,
DataExport,
PermissionChange,
ConfigChange,
} from '../entities';
export interface AuditLogFilters {
userId?: string;
entityType?: string;
action?: string;
category?: string;
startDate?: Date;
endDate?: Date;
ipAddress?: string;
}
export interface PaginationOptions {
page?: number;
limit?: number;
}
export class AuditService {
constructor(
private readonly auditLogRepository: Repository<AuditLog>,
private readonly entityChangeRepository: Repository<EntityChange>,
private readonly loginHistoryRepository: Repository<LoginHistory>,
private readonly sensitiveDataAccessRepository: Repository<SensitiveDataAccess>,
private readonly dataExportRepository: Repository<DataExport>,
private readonly permissionChangeRepository: Repository<PermissionChange>,
private readonly configChangeRepository: Repository<ConfigChange>
) {}
// ============================================
// AUDIT LOGS
// ============================================
async createAuditLog(tenantId: string, data: Partial<AuditLog>): Promise<AuditLog> {
const log = this.auditLogRepository.create({
...data,
tenantId,
});
return this.auditLogRepository.save(log);
}
async findAuditLogs(
tenantId: string,
filters: AuditLogFilters = {},
pagination: PaginationOptions = {}
): Promise<{ data: AuditLog[]; total: number }> {
const { page = 1, limit = 50 } = pagination;
const where: FindOptionsWhere<AuditLog> = { tenantId };
if (filters.userId) where.userId = filters.userId;
if (filters.entityType) where.resourceType = filters.entityType;
if (filters.action) where.action = filters.action as any;
if (filters.category) where.actionCategory = filters.category as any;
if (filters.ipAddress) where.ipAddress = filters.ipAddress;
if (filters.startDate && filters.endDate) {
where.createdAt = Between(filters.startDate, filters.endDate);
} else if (filters.startDate) {
where.createdAt = MoreThanOrEqual(filters.startDate);
} else if (filters.endDate) {
where.createdAt = LessThanOrEqual(filters.endDate);
}
const [data, total] = await this.auditLogRepository.findAndCount({
where,
order: { createdAt: 'DESC' },
skip: (page - 1) * limit,
take: limit,
});
return { data, total };
}
async findAuditLogsByEntity(
tenantId: string,
entityType: string,
entityId: string
): Promise<AuditLog[]> {
return this.auditLogRepository.find({
where: { tenantId, resourceType: entityType, resourceId: entityId },
order: { createdAt: 'DESC' },
});
}
// ============================================
// ENTITY CHANGES
// ============================================
async createEntityChange(tenantId: string, data: Partial<EntityChange>): Promise<EntityChange> {
const change = this.entityChangeRepository.create({
...data,
tenantId,
});
return this.entityChangeRepository.save(change);
}
async findEntityChanges(
tenantId: string,
entityType: string,
entityId: string
): Promise<EntityChange[]> {
return this.entityChangeRepository.find({
where: { tenantId, entityType, entityId },
order: { changedAt: 'DESC' },
});
}
async getEntityVersion(
tenantId: string,
entityType: string,
entityId: string,
version: number
): Promise<EntityChange | null> {
return this.entityChangeRepository.findOne({
where: { tenantId, entityType, entityId, version },
});
}
// ============================================
// LOGIN HISTORY
// ============================================
async createLoginHistory(data: Partial<LoginHistory>): Promise<LoginHistory> {
const login = this.loginHistoryRepository.create(data);
return this.loginHistoryRepository.save(login);
}
async findLoginHistory(
userId: string,
tenantId?: string,
limit: number = 20
): Promise<LoginHistory[]> {
const where: FindOptionsWhere<LoginHistory> = { userId };
if (tenantId) where.tenantId = tenantId;
return this.loginHistoryRepository.find({
where,
order: { attemptedAt: 'DESC' },
take: limit,
});
}
async getActiveSessionsCount(userId: string): Promise<number> {
// Note: LoginHistory tracks login attempts, not sessions
// This counts successful login attempts (not truly active sessions)
return this.loginHistoryRepository.count({
where: { userId, status: 'success' },
});
}
// Note: Session logout tracking requires a separate Session entity
// LoginHistory only tracks login attempts
// ============================================
// SENSITIVE DATA ACCESS
// ============================================
async logSensitiveDataAccess(
tenantId: string,
data: Partial<SensitiveDataAccess>
): Promise<SensitiveDataAccess> {
const access = this.sensitiveDataAccessRepository.create({
...data,
tenantId,
});
return this.sensitiveDataAccessRepository.save(access);
}
async findSensitiveDataAccess(
tenantId: string,
filters: { userId?: string; dataType?: string; startDate?: Date; endDate?: Date } = {}
): Promise<SensitiveDataAccess[]> {
const where: FindOptionsWhere<SensitiveDataAccess> = { tenantId };
if (filters.userId) where.userId = filters.userId;
if (filters.dataType) where.dataType = filters.dataType as any;
if (filters.startDate && filters.endDate) {
where.accessedAt = Between(filters.startDate, filters.endDate);
}
return this.sensitiveDataAccessRepository.find({
where,
order: { accessedAt: 'DESC' },
take: 100,
});
}
// ============================================
// DATA EXPORTS
// ============================================
async createDataExport(tenantId: string, data: Partial<DataExport>): Promise<DataExport> {
const exportRecord = this.dataExportRepository.create({
...data,
tenantId,
status: 'pending',
});
return this.dataExportRepository.save(exportRecord);
}
async findDataExport(id: string): Promise<DataExport | null> {
return this.dataExportRepository.findOne({ where: { id } });
}
async findUserDataExports(tenantId: string, userId: string): Promise<DataExport[]> {
return this.dataExportRepository.find({
where: { tenantId, userId },
order: { requestedAt: 'DESC' },
});
}
async updateDataExportStatus(
id: string,
status: string,
updates: Partial<DataExport> = {}
): Promise<DataExport | null> {
const exportRecord = await this.findDataExport(id);
if (!exportRecord) return null;
exportRecord.status = status as any;
Object.assign(exportRecord, updates);
if (status === 'completed') {
exportRecord.completedAt = new Date();
}
return this.dataExportRepository.save(exportRecord);
}
// ============================================
// PERMISSION CHANGES
// ============================================
async logPermissionChange(
tenantId: string,
data: Partial<PermissionChange>
): Promise<PermissionChange> {
const change = this.permissionChangeRepository.create({
...data,
tenantId,
});
return this.permissionChangeRepository.save(change);
}
async findPermissionChanges(
tenantId: string,
targetUserId?: string
): Promise<PermissionChange[]> {
const where: FindOptionsWhere<PermissionChange> = { tenantId };
if (targetUserId) where.targetUserId = targetUserId;
return this.permissionChangeRepository.find({
where,
order: { changedAt: 'DESC' },
take: 100,
});
}
// ============================================
// CONFIG CHANGES
// ============================================
async logConfigChange(tenantId: string, data: Partial<ConfigChange>): Promise<ConfigChange> {
const change = this.configChangeRepository.create({
...data,
tenantId,
});
return this.configChangeRepository.save(change);
}
async findConfigChanges(tenantId: string, configType?: string): Promise<ConfigChange[]> {
const where: FindOptionsWhere<ConfigChange> = { tenantId };
if (configType) where.configType = configType as any;
return this.configChangeRepository.find({
where,
order: { changedAt: 'DESC' },
take: 100,
});
}
// Note: ConfigChange entity doesn't track versions
// Use changedAt timestamp to get specific config snapshots
async getConfigChangeByDate(
tenantId: string,
configKey: string,
date: Date
): Promise<ConfigChange | null> {
return this.configChangeRepository.findOne({
where: { tenantId, configKey },
order: { changedAt: 'DESC' },
});
}
}

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@ -0,0 +1 @@
export { AuditService, AuditLogFilters, PaginationOptions } from './audit.service';

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@ -7,8 +7,9 @@ import { z } from 'zod';
// Login Schema
export const loginSchema = z.object({
email: z.string().email('Email inválido'),
password: z.string().min(8, 'La contraseña debe tener al menos 8 caracteres'),
email: z.string().email('Email inválido'),
password: z.string().min(8, 'La contraseña debe tener al menos 8 caracteres'),
mfaCode: z.string().optional(),
});
export type LoginDto = z.infer<typeof loginSchema>;

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@ -11,6 +11,7 @@ import { RefreshToken } from './entities/refresh-token.entity';
import { Workshop } from './entities/workshop.entity';
import { LoginDto, RegisterDto, ChangePasswordDto } from './auth.dto';
import { generateAccessToken, generateRefreshToken as generateRefreshJwt, verifyToken } from '../../shared/utils/jwt.utils';
import { MfaService } from './services/mfa.service';
const REFRESH_TOKEN_EXPIRES_DAYS = 30;
@ -49,11 +50,22 @@ export class AuthService {
const isValidPassword = await bcrypt.compare(dto.password, user.passwordHash);
if (!isValidPassword) {
throw new Error('Credenciales inválidas');
throw new Error('Credenciales inválidas');
}
// MFA Verification
if (user.mfaEnabled) {
if (!dto.mfaCode) {
throw new Error('MFA_REQUIRED'); // Standardized error for frontend to catch
}
const isMfaValid = await MfaService.verifyMfaCode(user.id, dto.mfaCode);
if (!isMfaValid) {
throw new Error('Código MFA inválido');
}
}
user.lastLoginAt = new Date();
await this.userRepository.save(user);
const tokenPayload = {
userId: user.id,

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@ -51,6 +51,15 @@ export class User {
@Column({ name: 'email_verified', type: 'boolean', default: false })
emailVerified: boolean;
@Column({ name: 'mfa_enabled', type: 'boolean', default: false })
mfaEnabled: boolean;
@Column({ name: 'mfa_secret_encrypted', type: 'text', nullable: true })
mfaSecretEncrypted?: string;
@Column({ name: 'mfa_backup_codes', type: 'text', array: true, nullable: true })
mfaBackupCodes?: string[];
@Column({ name: 'last_login_at', type: 'timestamptz', nullable: true })
lastLoginAt?: Date;

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@ -0,0 +1,110 @@
import { Request, Response, NextFunction } from 'express';
import { MfaService } from './services/mfa.service';
import { AuthRequest } from '../../shared/types/index';
export const mfaController = {
/**
* Initialize MFA setup
*/
async setup(req: AuthRequest, res: Response, next: NextFunction) {
try {
const userId = req.user!.userId; // Assuming req.user is populated by auth middleware
const result = await MfaService.setupMfa(userId);
res.json({
success: true,
data: result,
});
} catch (error) {
next(error);
}
},
/**
* Verify MFA setup and enable
*/
async verifySetup(req: AuthRequest, res: Response, next: NextFunction) {
try {
const userId = req.user!.userId;
const { secret, code } = req.body;
if (!secret || !code) {
throw new Error('Secret and code are required');
}
const result = await MfaService.verifyMfaSetup(userId, secret, code);
res.json({
success: true,
message: result.message,
data: { backupCodes: result.backupCodes },
});
} catch (error) {
next(error);
}
},
/**
* Disable MFA
*/
async disable(req: AuthRequest, res: Response, next: NextFunction) {
try {
const userId = req.user!.userId;
const { code, password } = req.body;
if (!code) {
throw new Error('Verification code is required');
}
const result = await MfaService.disableMfa(userId, code, password);
res.json({
success: true,
message: result.message,
});
} catch (error) {
next(error);
}
},
/**
* Get MFA status
*/
async getStatus(req: AuthRequest, res: Response, next: NextFunction) {
try {
const userId = req.user!.userId;
const result = await MfaService.getMfaStatus(userId);
res.json({
success: true,
data: result,
});
} catch (error) {
next(error);
}
},
/**
* Regenerate backup codes
*/
async regenerateBackupCodes(req: AuthRequest, res: Response, next: NextFunction) {
try {
const userId = req.user!.userId;
const { code, password } = req.body;
if (!code) {
throw new Error('Verification code is required');
}
const result = await MfaService.regenerateBackupCodes(userId, code, password);
res.json({
success: true,
message: result.message,
data: { backupCodes: result.backupCodes },
});
} catch (error) {
next(error);
}
},
};

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@ -0,0 +1,19 @@
import { Router } from 'express';
import { mfaController } from './mfa.controller';
import { authMiddleware } from '../../shared/middleware/auth.middleware';
const router = Router();
// All MFA routes require authentication
router.use(authMiddleware);
// Setup
router.post('/setup', (req, res, next) => mfaController.setup(req, res, next));
router.post('/verify-setup', (req, res, next) => mfaController.verifySetup(req, res, next));
// Management
router.get('/status', (req, res, next) => mfaController.getStatus(req, res, next));
router.post('/disable', (req, res, next) => mfaController.disable(req, res, next));
router.post('/regenerate-codes', (req, res, next) => mfaController.regenerateBackupCodes(req, res, next));
export default router;

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@ -0,0 +1,354 @@
import speakeasy from 'speakeasy';
import QRCode from 'qrcode';
import bcrypt from 'bcryptjs';
import crypto from 'crypto';
import { AppDataSource } from '../../../main';
import { User } from '../entities/user.entity';
// Minimal config or just use process.env directly if config import fails
const encryptionSecret = process.env.JWT_SECRET || 'fallback-secret';
export class MfaService {
private static get userRepository() {
return AppDataSource.getRepository(User);
}
private static get appName() {
return 'ERP Mecánicas Diesel';
}
/**
* Initialize MFA setup - generate secret and QR code
*/
static async setupMfa(userId: string) {
const user = await this.userRepository.findOne({ where: { id: userId } });
if (!user) {
const error = new Error('User not found');
(error as any).statusCode = 404;
throw error;
}
if (user.mfaEnabled) {
const error = new Error('MFA is already enabled');
(error as any).statusCode = 400;
throw error;
}
// Generate TOTP secret
const secret = speakeasy.generateSecret({
name: `${this.appName} (${user.email})`,
length: 20,
});
// Generate QR code
const qrCodeDataUrl = await QRCode.toDataURL(secret.otpauth_url!);
// Generate backup codes
const backupCodes = this.generateBackupCodes();
return {
secret: secret.base32,
qrCodeDataUrl,
backupCodes,
};
}
/**
* Verify MFA setup and enable
*/
static async verifyMfaSetup(
userId: string,
secretToken: string,
code: string
) {
const user = await this.userRepository.findOne({ where: { id: userId } });
if (!user) {
const error = new Error('User not found');
(error as any).statusCode = 404;
throw error;
}
if (user.mfaEnabled) {
const error = new Error('MFA is already enabled');
(error as any).statusCode = 400;
throw error;
}
// Verify the TOTP code
const isValid = speakeasy.totp.verify({
secret: secretToken,
encoding: 'base32',
token: code,
window: 1, // Allow 1 step (30 seconds) tolerance
});
if (!isValid) {
const error = new Error('Invalid verification code');
(error as any).statusCode = 400;
throw error;
}
// Generate and hash backup codes
const backupCodes = this.generateBackupCodes();
const hashedBackupCodes = await Promise.all(
backupCodes.map((c) => bcrypt.hash(c, 10))
);
// Enable MFA and store secret
user.mfaEnabled = true;
user.mfaSecretEncrypted = this.encryptSecret(secretToken);
user.mfaBackupCodes = hashedBackupCodes;
await this.userRepository.save(user);
return {
success: true,
message: 'MFA enabled successfully. Please save your backup codes.',
backupCodes, // Return unhashed backup codes one last time
};
}
/**
* Verify TOTP code during login
*/
static async verifyMfaCode(
userId: string,
code: string,
isBackupCode: boolean = false
): Promise<boolean> {
const user = await this.userRepository.findOne({ where: { id: userId } });
if (!user) {
const error = new Error('User not found');
(error as any).statusCode = 404;
throw error;
}
if (!user.mfaEnabled || !user.mfaSecretEncrypted) {
const error = new Error('MFA is not enabled for this user');
(error as any).statusCode = 400;
throw error;
}
if (isBackupCode) {
return this.verifyBackupCode(user, code);
}
// Decrypt secret and verify TOTP
const secret = this.decryptSecret(user.mfaSecretEncrypted);
const isValid = speakeasy.totp.verify({
secret,
encoding: 'base32',
token: code,
window: 1,
});
return isValid;
}
/**
* Disable MFA for user
*/
static async disableMfa(userId: string, code: string, password?: string) {
const user = await this.userRepository.findOne({ where: { id: userId } });
if (!user) {
const error = new Error('User not found');
(error as any).statusCode = 404;
throw error;
}
if (!user.mfaEnabled) {
const error = new Error('MFA is not enabled');
(error as any).statusCode = 400;
throw error;
}
// Optional: Verify password if provided
if (password) {
const isPasswordValid = await bcrypt.compare(password, user.passwordHash);
if (!isPasswordValid) {
const error = new Error('Invalid password');
(error as any).statusCode = 401;
throw error;
}
}
// Verify MFA code
const isMfaValid = await this.verifyMfaCode(userId, code, code.length > 6);
if (!isMfaValid) {
const error = new Error('Invalid verification code');
(error as any).statusCode = 400;
throw error;
}
// Disable MFA
user.mfaEnabled = false;
user.mfaSecretEncrypted = undefined;
user.mfaBackupCodes = undefined;
await this.userRepository.save(user);
return {
success: true,
message: 'MFA disabled successfully',
};
}
/**
* Get MFA status for user
*/
static async getMfaStatus(userId: string) {
const user = await this.userRepository.findOne({ where: { id: userId } });
if (!user) {
const error = new Error('User not found');
(error as any).statusCode = 404;
throw error;
}
const backupCodesRemaining = user.mfaBackupCodes?.length || 0;
return {
enabled: user.mfaEnabled || false,
backupCodesRemaining,
};
}
/**
* Regenerate backup codes
*/
static async regenerateBackupCodes(
userId: string,
code: string,
password?: string
) {
const user = await this.userRepository.findOne({ where: { id: userId } });
if (!user) {
const error = new Error('User not found');
(error as any).statusCode = 404;
throw error;
}
if (!user.mfaEnabled) {
const error = new Error('MFA is not enabled');
(error as any).statusCode = 400;
throw error;
}
// Optional: Verify password if provided
if (password) {
const isPasswordValid = await bcrypt.compare(password, user.passwordHash);
if (!isPasswordValid) {
const error = new Error('Invalid password');
(error as any).statusCode = 401;
throw error;
}
}
// Verify MFA code
const isMfaValid = await this.verifyMfaCode(userId, code);
if (!isMfaValid) {
const error = new Error('Invalid verification code');
(error as any).statusCode = 400;
throw error;
}
// Generate new backup codes
const backupCodes = this.generateBackupCodes();
const hashedBackupCodes = await Promise.all(
backupCodes.map((c) => bcrypt.hash(c, 10))
);
// Update user
user.mfaBackupCodes = hashedBackupCodes;
await this.userRepository.save(user);
return {
backupCodes,
message: 'New backup codes generated. Please save them securely.',
};
}
// ==================== Private Methods ====================
/**
* Generate 10 random backup codes
*/
private static generateBackupCodes(): string[] {
const codes: string[] = [];
for (let i = 0; i < 10; i++) {
const code = crypto.randomBytes(4).toString('hex').toUpperCase();
// Format as XXXX-XXXX for readability
codes.push(`${code.slice(0, 4)}-${code.slice(4)}`);
}
return codes;
}
/**
* Verify a backup code
*/
private static async verifyBackupCode(user: User, code: string): Promise<boolean> {
if (!user.mfaBackupCodes || user.mfaBackupCodes.length === 0) {
return false;
}
// Normalize code (remove dashes, uppercase)
const normalizedCode = code.replace(/-/g, '').toUpperCase();
const formattedCode = `${normalizedCode.slice(0, 4)}-${normalizedCode.slice(4)}`;
// Check each hashed backup code
for (let i = 0; i < user.mfaBackupCodes.length; i++) {
const isMatch = await bcrypt.compare(formattedCode, user.mfaBackupCodes[i]);
if (isMatch) {
// Remove the used backup code
const updatedCodes = [...user.mfaBackupCodes];
updatedCodes.splice(i, 1);
user.mfaBackupCodes = updatedCodes;
await this.userRepository.save(user);
return true;
}
}
return false;
}
/**
* Encrypt MFA secret for storage
*/
private static encryptSecret(secret: string): string {
const encryptionKey = encryptionSecret;
// Use first 32 bytes of key for AES-256
const key = crypto.createHash('sha256').update(encryptionKey).digest();
const iv = crypto.randomBytes(16);
const cipher = crypto.createCipheriv('aes-256-cbc', key, iv);
let encrypted = cipher.update(secret, 'utf8', 'hex');
encrypted += cipher.final('hex');
// Return IV + encrypted data
return iv.toString('hex') + ':' + encrypted;
}
/**
* Decrypt MFA secret from storage
*/
private static decryptSecret(encryptedSecret: string): string {
const encryptionKey = encryptionSecret;
const key = crypto.createHash('sha256').update(encryptionKey).digest();
const [ivHex, encrypted] = encryptedSecret.split(':');
const iv = Buffer.from(ivHex, 'hex');
const decipher = crypto.createDecipheriv('aes-256-cbc', key, iv);
let decrypted = decipher.update(encrypted, 'hex', 'utf8');
decrypted += decipher.final('utf8');
return decrypted;
}
}

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# Feature Flags Module
## Descripcion
Sistema de feature flags/toggles para control de funcionalidades. Permite habilitar/deshabilitar features globalmente o por tenant, con soporte para rollout gradual basado en porcentajes y overrides temporales con expiracion.
## Entidades
| Entidad | Schema | Descripcion |
|---------|--------|-------------|
| `Flag` | feature_flags.flags | Definicion de feature flags con estado global y porcentaje de rollout |
| `TenantOverride` | feature_flags.tenant_overrides | Overrides por tenant con razon y fecha de expiracion |
| `FlagEvaluation` | feature_flags.flag_evaluations | Log de evaluaciones para auditoria |
## Servicios
| Servicio | Responsabilidades |
|----------|-------------------|
| `FeatureFlagsService` | CRUD de flags y overrides; evaluacion de flags; rollout deterministico; limpieza de expirados |
## Endpoints
| Method | Path | Descripcion |
|--------|------|-------------|
| GET | `/flags` | Lista flags activos |
| GET | `/flags/all` | Lista todos los flags (incluyendo inactivos) |
| GET | `/flags/tags/:tags` | Lista flags por tags |
| GET | `/flags/:id` | Obtiene flag por ID |
| GET | `/flags/code/:code` | Obtiene flag por codigo |
| POST | `/flags` | Crea nuevo flag |
| PATCH | `/flags/:id` | Actualiza flag |
| DELETE | `/flags/:id` | Elimina flag (soft/hard) |
| PATCH | `/flags/:id/toggle` | Activa/desactiva flag |
| GET | `/flags/:id/stats` | Estadisticas de overrides del flag |
| GET | `/flags/:flagId/overrides` | Lista overrides de un flag |
| GET | `/tenants/:tenantId/overrides` | Lista overrides de un tenant |
| GET | `/overrides/:id` | Obtiene override por ID |
| POST | `/overrides` | Crea override |
| PATCH | `/overrides/:id` | Actualiza override |
| DELETE | `/overrides/:id` | Elimina override |
| GET | `/evaluate/:code` | Evalua un flag para tenant |
| POST | `/evaluate` | Evalua multiples flags |
| GET | `/is-enabled/:code` | Check rapido de flag habilitado |
| POST | `/maintenance/cleanup` | Limpia overrides expirados |
## Dependencias
- `common` - Utilidades compartidas (crypto para hash)
## Configuracion
No requiere configuracion de ambiente.
## Prioridad de Evaluacion
1. **Tenant Override** (si existe y no ha expirado)
2. **Estado Global** del flag (enabled/disabled)
3. **Rollout Percentage** (si el flag esta habilitado)
4. **Default** (false si el flag no existe)
## Rollout Deterministico
El rollout por porcentaje usa un hash MD5 de `flagCode:tenantId` para asegurar que:
- El mismo tenant siempre obtiene el mismo resultado
- La distribucion es uniforme entre tenants
- No hay necesidad de almacenar el resultado
```typescript
// Ejemplo: 30% rollout
// Tenants con bucket 0-29 = habilitado
// Tenants con bucket 30-99 = deshabilitado
bucket = MD5(flagCode + tenantId) % 100
enabled = bucket < rolloutPercentage
```
## Fuentes de Evaluacion
| Fuente | Descripcion |
|--------|-------------|
| `default` | Flag no existe, retorna false |
| `global` | Valor global del flag |
| `override` | Override especifico del tenant |
| `rollout` | Resultado del calculo de rollout |
## Mantenimiento
Se recomienda ejecutar `POST /maintenance/cleanup` periodicamente (cron diario) para eliminar overrides expirados.

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import { Request, Response, NextFunction, Router } from 'express';
import { FeatureFlagsService } from '../services/feature-flags.service';
export class FeatureFlagsController {
public router: Router;
constructor(private readonly featureFlagsService: FeatureFlagsService) {
this.router = Router();
this.initializeRoutes();
}
private initializeRoutes(): void {
// Flag CRUD
this.router.get('/flags', this.findAllFlags.bind(this));
this.router.get('/flags/all', this.findAllFlagsIncludingInactive.bind(this));
this.router.get('/flags/tags/:tags', this.findFlagsByTags.bind(this));
this.router.get('/flags/:id', this.findFlagById.bind(this));
this.router.get('/flags/code/:code', this.findFlagByCode.bind(this));
this.router.post('/flags', this.createFlag.bind(this));
this.router.patch('/flags/:id', this.updateFlag.bind(this));
this.router.delete('/flags/:id', this.deleteFlag.bind(this));
this.router.patch('/flags/:id/toggle', this.toggleFlag.bind(this));
this.router.get('/flags/:id/stats', this.getFlagStats.bind(this));
// Tenant Overrides
this.router.get('/flags/:flagId/overrides', this.findOverridesForFlag.bind(this));
this.router.get('/tenants/:tenantId/overrides', this.findOverridesForTenant.bind(this));
this.router.get('/overrides/:id', this.findOverrideById.bind(this));
this.router.post('/overrides', this.createOverride.bind(this));
this.router.patch('/overrides/:id', this.updateOverride.bind(this));
this.router.delete('/overrides/:id', this.deleteOverride.bind(this));
// Evaluation
this.router.get('/evaluate/:code', this.evaluateFlag.bind(this));
this.router.post('/evaluate', this.evaluateFlags.bind(this));
this.router.get('/is-enabled/:code', this.isEnabled.bind(this));
// Maintenance
this.router.post('/maintenance/cleanup', this.cleanupExpiredOverrides.bind(this));
}
// ============================================
// FLAGS
// ============================================
private async findAllFlags(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const flags = await this.featureFlagsService.findAllFlags();
res.json({ data: flags, total: flags.length });
} catch (error) {
next(error);
}
}
private async findAllFlagsIncludingInactive(
req: Request,
res: Response,
next: NextFunction
): Promise<void> {
try {
const flags = await this.featureFlagsService.findAllFlagsIncludingInactive();
res.json({ data: flags, total: flags.length });
} catch (error) {
next(error);
}
}
private async findFlagById(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const { id } = req.params;
const flag = await this.featureFlagsService.findFlagById(id);
if (!flag) {
res.status(404).json({ error: 'Flag not found' });
return;
}
res.json({ data: flag });
} catch (error) {
next(error);
}
}
private async findFlagByCode(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const { code } = req.params;
const flag = await this.featureFlagsService.findFlagByCode(code);
if (!flag) {
res.status(404).json({ error: 'Flag not found' });
return;
}
res.json({ data: flag });
} catch (error) {
next(error);
}
}
private async findFlagsByTags(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const { tags } = req.params;
const tagList = tags.split(',');
const flags = await this.featureFlagsService.findFlagsByTags(tagList);
res.json({ data: flags, total: flags.length });
} catch (error) {
next(error);
}
}
private async createFlag(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const userId = req.headers['x-user-id'] as string;
const flag = await this.featureFlagsService.createFlag(req.body, userId);
res.status(201).json({ data: flag });
} catch (error) {
next(error);
}
}
private async updateFlag(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const { id } = req.params;
const userId = req.headers['x-user-id'] as string;
const flag = await this.featureFlagsService.updateFlag(id, req.body, userId);
if (!flag) {
res.status(404).json({ error: 'Flag not found' });
return;
}
res.json({ data: flag });
} catch (error) {
next(error);
}
}
private async deleteFlag(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const { id } = req.params;
const { soft } = req.query;
const userId = req.headers['x-user-id'] as string;
let result: boolean;
if (soft === 'true') {
const flag = await this.featureFlagsService.softDeleteFlag(id, userId);
result = flag !== null;
} else {
result = await this.featureFlagsService.deleteFlag(id);
}
if (!result) {
res.status(404).json({ error: 'Flag not found' });
return;
}
res.status(204).send();
} catch (error) {
next(error);
}
}
private async toggleFlag(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const { id } = req.params;
const { enabled } = req.body;
const userId = req.headers['x-user-id'] as string;
const flag = await this.featureFlagsService.toggleFlag(id, enabled, userId);
if (!flag) {
res.status(404).json({ error: 'Flag not found' });
return;
}
res.json({ data: flag });
} catch (error) {
next(error);
}
}
private async getFlagStats(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const { id } = req.params;
const stats = await this.featureFlagsService.getFlagStats(id);
if (!stats.flag) {
res.status(404).json({ error: 'Flag not found' });
return;
}
res.json({ data: stats });
} catch (error) {
next(error);
}
}
// ============================================
// OVERRIDES
// ============================================
private async findOverridesForFlag(
req: Request,
res: Response,
next: NextFunction
): Promise<void> {
try {
const { flagId } = req.params;
const overrides = await this.featureFlagsService.findOverridesForFlag(flagId);
res.json({ data: overrides, total: overrides.length });
} catch (error) {
next(error);
}
}
private async findOverridesForTenant(
req: Request,
res: Response,
next: NextFunction
): Promise<void> {
try {
const { tenantId } = req.params;
const overrides = await this.featureFlagsService.findOverridesForTenant(tenantId);
res.json({ data: overrides, total: overrides.length });
} catch (error) {
next(error);
}
}
private async findOverrideById(
req: Request,
res: Response,
next: NextFunction
): Promise<void> {
try {
const { id } = req.params;
const override = await this.featureFlagsService.findOverrideById(id);
if (!override) {
res.status(404).json({ error: 'Override not found' });
return;
}
res.json({ data: override });
} catch (error) {
next(error);
}
}
private async createOverride(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const userId = req.headers['x-user-id'] as string;
const override = await this.featureFlagsService.createOverride(req.body, userId);
res.status(201).json({ data: override });
} catch (error) {
next(error);
}
}
private async updateOverride(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const { id } = req.params;
const override = await this.featureFlagsService.updateOverride(id, req.body);
if (!override) {
res.status(404).json({ error: 'Override not found' });
return;
}
res.json({ data: override });
} catch (error) {
next(error);
}
}
private async deleteOverride(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const { id } = req.params;
const deleted = await this.featureFlagsService.deleteOverride(id);
if (!deleted) {
res.status(404).json({ error: 'Override not found' });
return;
}
res.status(204).send();
} catch (error) {
next(error);
}
}
// ============================================
// EVALUATION
// ============================================
private async evaluateFlag(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const { code } = req.params;
const tenantId = req.headers['x-tenant-id'] as string || req.query.tenantId as string;
if (!tenantId) {
res.status(400).json({ error: 'tenantId is required (header x-tenant-id or query param)' });
return;
}
const result = await this.featureFlagsService.evaluateFlag(code, tenantId);
res.json({ data: result });
} catch (error) {
next(error);
}
}
private async evaluateFlags(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const { flagCodes, tenantId } = req.body;
if (!flagCodes || !Array.isArray(flagCodes)) {
res.status(400).json({ error: 'flagCodes array is required' });
return;
}
if (!tenantId) {
res.status(400).json({ error: 'tenantId is required' });
return;
}
const results = await this.featureFlagsService.evaluateFlags(flagCodes, tenantId);
res.json({ data: results, total: results.length });
} catch (error) {
next(error);
}
}
private async isEnabled(req: Request, res: Response, next: NextFunction): Promise<void> {
try {
const { code } = req.params;
const tenantId = req.headers['x-tenant-id'] as string || req.query.tenantId as string;
if (!tenantId) {
res.status(400).json({ error: 'tenantId is required (header x-tenant-id or query param)' });
return;
}
const enabled = await this.featureFlagsService.isEnabled(code, tenantId);
res.json({ data: { code, enabled } });
} catch (error) {
next(error);
}
}
// ============================================
// MAINTENANCE
// ============================================
private async cleanupExpiredOverrides(
req: Request,
res: Response,
next: NextFunction
): Promise<void> {
try {
const count = await this.featureFlagsService.cleanupExpiredOverrides();
res.json({ data: { cleanedUp: count } });
} catch (error) {
next(error);
}
}
}

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export { FeatureFlagsController } from './feature-flags.controller';

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// =====================================================
// DTOs: Feature Flags
// Modulo: MGN-019
// Version: 1.0.0
// =====================================================
export interface CreateFlagDto {
code: string;
name: string;
description?: string;
enabled?: boolean;
rolloutPercentage?: number;
tags?: string[];
}
export interface UpdateFlagDto {
name?: string;
description?: string;
enabled?: boolean;
rolloutPercentage?: number;
tags?: string[];
isActive?: boolean;
}
export interface CreateTenantOverrideDto {
flagId: string;
tenantId: string;
enabled: boolean;
reason?: string;
expiresAt?: Date;
}
export interface UpdateTenantOverrideDto {
enabled?: boolean;
reason?: string;
expiresAt?: Date | null;
}
export interface EvaluateFlagDto {
flagCode: string;
tenantId: string;
}
export interface EvaluateFlagsDto {
flagCodes: string[];
tenantId: string;
}
export interface FlagEvaluationResult {
code: string;
enabled: boolean;
source: 'override' | 'global' | 'rollout' | 'default';
}

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export * from './feature-flag.dto';

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import {
Entity,
PrimaryGeneratedColumn,
Column,
Index,
ManyToOne,
JoinColumn,
} from 'typeorm';
import { Flag } from './flag.entity';
/**
* FlagEvaluation Entity
* Maps to flags.flag_evaluations DDL table
* Historial de evaluaciones de feature flags para analytics
* Propagated from template-saas HU-REFACT-005
*/
@Entity({ schema: 'flags', name: 'flag_evaluations' })
@Index('idx_flag_evaluations_flag', ['flagId'])
@Index('idx_flag_evaluations_tenant', ['tenantId'])
@Index('idx_flag_evaluations_date', ['evaluatedAt'])
export class FlagEvaluation {
@PrimaryGeneratedColumn('uuid')
id: string;
@Column({ type: 'uuid', nullable: false, name: 'flag_id' })
flagId: string;
@Column({ type: 'uuid', nullable: false, name: 'tenant_id' })
tenantId: string;
@Column({ type: 'uuid', nullable: true, name: 'user_id' })
userId: string | null;
@Column({ type: 'boolean', nullable: false })
result: boolean;
@Column({ type: 'varchar', length: 100, nullable: true })
variant: string | null;
@Column({ type: 'jsonb', default: {}, name: 'evaluation_context' })
evaluationContext: Record<string, any>;
@Column({ type: 'varchar', length: 100, nullable: true, name: 'evaluation_reason' })
evaluationReason: string | null;
@Column({ type: 'timestamptz', default: () => 'CURRENT_TIMESTAMP', name: 'evaluated_at' })
evaluatedAt: Date;
// Relaciones
@ManyToOne(() => Flag, { onDelete: 'CASCADE' })
@JoinColumn({ name: 'flag_id' })
flag: Flag;
}

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import {
Entity,
PrimaryGeneratedColumn,
Column,
CreateDateColumn,
UpdateDateColumn,
Index,
Unique,
OneToMany,
} from 'typeorm';
import { TenantOverride } from './tenant-override.entity';
@Entity({ name: 'flags', schema: 'feature_flags' })
@Unique(['code'])
export class Flag {
@PrimaryGeneratedColumn('uuid')
id: string;
@Index()
@Column({ name: 'code', type: 'varchar', length: 50 })
code: string;
@Column({ name: 'name', type: 'varchar', length: 100 })
name: string;
@Column({ name: 'description', type: 'text', nullable: true })
description: string;
@Index()
@Column({ name: 'enabled', type: 'boolean', default: false })
enabled: boolean;
@Column({ name: 'rollout_percentage', type: 'int', default: 100 })
rolloutPercentage: number;
@Column({ name: 'tags', type: 'text', array: true, nullable: true })
tags: string[];
@Index()
@Column({ name: 'is_active', type: 'boolean', default: true })
isActive: boolean;
@CreateDateColumn({ name: 'created_at', type: 'timestamptz' })
createdAt: Date;
@UpdateDateColumn({ name: 'updated_at', type: 'timestamptz' })
updatedAt: Date;
@Column({ name: 'created_by', type: 'uuid', nullable: true })
createdBy: string;
@Column({ name: 'updated_by', type: 'uuid', nullable: true })
updatedBy: string;
@OneToMany(() => TenantOverride, (override) => override.flag)
overrides: TenantOverride[];
}

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export { Flag } from './flag.entity';
export { TenantOverride } from './tenant-override.entity';
export { FlagEvaluation } from './flag-evaluation.entity';

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import {
Entity,
PrimaryGeneratedColumn,
Column,
CreateDateColumn,
UpdateDateColumn,
Index,
Unique,
ManyToOne,
JoinColumn,
} from 'typeorm';
import { Flag } from './flag.entity';
@Entity({ name: 'tenant_overrides', schema: 'feature_flags' })
@Unique(['flagId', 'tenantId'])
export class TenantOverride {
@PrimaryGeneratedColumn('uuid')
id: string;
@Index()
@Column({ name: 'flag_id', type: 'uuid' })
flagId: string;
@Index()
@Column({ name: 'tenant_id', type: 'uuid' })
tenantId: string;
@Column({ name: 'enabled', type: 'boolean' })
enabled: boolean;
@Column({ name: 'reason', type: 'text', nullable: true })
reason: string;
@Index()
@Column({ name: 'expires_at', type: 'timestamptz', nullable: true })
expiresAt: Date;
@CreateDateColumn({ name: 'created_at', type: 'timestamptz' })
createdAt: Date;
@UpdateDateColumn({ name: 'updated_at', type: 'timestamptz' })
updatedAt: Date;
@Column({ name: 'created_by', type: 'uuid', nullable: true })
createdBy: string;
@ManyToOne(() => Flag, (flag) => flag.overrides, { onDelete: 'CASCADE' })
@JoinColumn({ name: 'flag_id' })
flag: Flag;
}

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import { Response, NextFunction } from 'express';
import { AuthRequest } from '../../shared/types/index';
import { featureFlagsService } from './services/feature-flags.instance';
export const featureFlagsController = {
/**
* Get all flags (Admin only ideally)
*/
async getAllFlags(req: AuthRequest, res: Response, next: NextFunction) {
try {
const flags = await featureFlagsService.findAllFlagsIncludingInactive();
res.json({
success: true,
data: flags,
});
} catch (error) {
next(error);
}
},
/**
* Evaluate flags for current tenant
*/
async evaluateFlags(req: AuthRequest, res: Response, next: NextFunction) {
try {
const { codes } = req.body;
if (!Array.isArray(codes)) {
throw new Error('Codes must be an array of strings');
}
const results = await featureFlagsService.evaluateFlags(codes, req.user!.tenantId);
res.json({
success: true,
data: results,
});
} catch (error) {
next(error);
}
},
/**
* Create or Update an override for a tenant
*/
async upsertOverride(req: AuthRequest, res: Response, next: NextFunction) {
try {
const { flagId, tenantId, enabled, expiresAt } = req.body;
const existing = await featureFlagsService.findOverride(flagId, tenantId);
let result;
if (existing) {
result = await featureFlagsService.updateOverride(existing.id, { enabled, expiresAt });
} else {
result = await featureFlagsService.createOverride({ flagId, tenantId, enabled, expiresAt }, req.user!.userId);
}
res.json({
success: true,
data: result,
});
} catch (error) {
next(error);
}
}
};

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import { Router } from 'express';
import { DataSource } from 'typeorm';
import { FeatureFlagsService } from './services';
import { FeatureFlagsController } from './controllers';
import { Flag, TenantOverride, FlagEvaluation } from './entities';
export interface FeatureFlagsModuleOptions {
dataSource: DataSource;
basePath?: string;
}
export class FeatureFlagsModule {
public router: Router;
public featureFlagsService: FeatureFlagsService;
private dataSource: DataSource;
private basePath: string;
constructor(options: FeatureFlagsModuleOptions) {
this.dataSource = options.dataSource;
this.basePath = options.basePath || '';
this.router = Router();
this.initializeServices();
this.initializeRoutes();
}
private initializeServices(): void {
const flagRepository = this.dataSource.getRepository(Flag);
const overrideRepository = this.dataSource.getRepository(TenantOverride);
this.featureFlagsService = new FeatureFlagsService(
flagRepository,
overrideRepository
);
}
private initializeRoutes(): void {
const featureFlagsController = new FeatureFlagsController(this.featureFlagsService);
this.router.use(`${this.basePath}/feature-flags`, featureFlagsController.router);
}
static getEntities(): Function[] {
return [Flag, TenantOverride, FlagEvaluation];
}
}

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import { Router } from 'express';
import { featureFlagsController } from './feature-flags.controller';
import { authMiddleware } from '../../shared/middleware/auth.middleware';
const router = Router();
router.use(authMiddleware);
// Public evaluation (for current tenant)
router.post('/evaluate', (req, res, next) => featureFlagsController.evaluateFlags(req, res, next));
// Admin routes (should add isSuperuser or permission check)
router.get('/', (req, res, next) => featureFlagsController.getAllFlags(req, res, next));
router.post('/overrides', (req, res, next) => featureFlagsController.upsertOverride(req, res, next));
export default router;

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export { FeatureFlagsModule, FeatureFlagsModuleOptions } from './feature-flags.module';
export { FeatureFlagsService } from './services';
export { FeatureFlagsController } from './controllers';
export { Flag, TenantOverride } from './entities';
export * from './dto';

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import { Response, NextFunction } from 'express';
import { AuthRequest } from '../../../shared/types/index';
import { featureFlagsService } from '../services/feature-flags.instance';
export const featureFlagsMiddleware = async (req: AuthRequest, res: Response, next: NextFunction) => {
// Solo evaluamos si hay tenant (request autenticado)
if (!req.user || !req.user.tenantId) {
return next();
}
try {
// Inyectamos un objeto helper en el request para chequear flags facilmente en controladores/servicios
(req as any).flags = {
isEnabled: async (code: string) => featureFlagsService.isEnabled(code, req.user!.tenantId),
evaluate: async (code: string) => featureFlagsService.evaluateFlag(code, req.user!.tenantId),
evaluateMany: async (codes: string[]) => featureFlagsService.evaluateFlags(codes, req.user!.tenantId)
};
} catch (err) {
console.error('Feature flags middleware error', err);
}
next();
};

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import { AppDataSource } from '../../../main';
import { Flag, TenantOverride } from '../entities/index';
import { FeatureFlagsService } from './feature-flags.service';
let _featureFlagsService: FeatureFlagsService | null = null;
function getService(): FeatureFlagsService {
if (!_featureFlagsService) {
_featureFlagsService = new FeatureFlagsService(
AppDataSource.getRepository(Flag),
AppDataSource.getRepository(TenantOverride)
);
}
return _featureFlagsService;
}
export const featureFlagsService = {
get instance(): FeatureFlagsService { return getService(); },
findAllFlags: () => getService().findAllFlags(),
findAllFlagsIncludingInactive: () => getService().findAllFlagsIncludingInactive(),
findFlagById: (id: string) => getService().findFlagById(id),
findFlagByCode: (code: string) => getService().findFlagByCode(code),
evaluateFlag: (code: string, tenantId: string) => getService().evaluateFlag(code, tenantId),
evaluateFlags: (codes: string[], tenantId: string) => getService().evaluateFlags(codes, tenantId),
isEnabled: (code: string, tenantId: string) => getService().isEnabled(code, tenantId),
findOverride: (flagId: string, tenantId: string) => getService().findOverride(flagId, tenantId),
createOverride: (...args: Parameters<FeatureFlagsService['createOverride']>) => getService().createOverride(...args),
updateOverride: (...args: Parameters<FeatureFlagsService['updateOverride']>) => getService().updateOverride(...args),
};

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import { Repository, In } from 'typeorm';
import { createHash } from 'crypto';
import { Flag, TenantOverride } from '../entities';
import {
CreateFlagDto,
UpdateFlagDto,
CreateTenantOverrideDto,
UpdateTenantOverrideDto,
FlagEvaluationResult,
} from '../dto';
export class FeatureFlagsService {
constructor(
private readonly flagRepository: Repository<Flag>,
private readonly overrideRepository: Repository<TenantOverride>
) {}
// ============================================
// FLAGS - CRUD
// ============================================
async findAllFlags(): Promise<Flag[]> {
return this.flagRepository.find({
where: { isActive: true },
order: { code: 'ASC' },
});
}
async findAllFlagsIncludingInactive(): Promise<Flag[]> {
return this.flagRepository.find({
order: { code: 'ASC' },
});
}
async findFlagById(id: string): Promise<Flag | null> {
return this.flagRepository.findOne({
where: { id },
relations: ['overrides'],
});
}
async findFlagByCode(code: string): Promise<Flag | null> {
return this.flagRepository.findOne({
where: { code },
relations: ['overrides'],
});
}
async findFlagsByTags(tags: string[]): Promise<Flag[]> {
return this.flagRepository
.createQueryBuilder('flag')
.where('flag.is_active = true')
.andWhere('flag.tags && :tags', { tags })
.orderBy('flag.code', 'ASC')
.getMany();
}
async createFlag(data: CreateFlagDto, createdBy?: string): Promise<Flag> {
const flag = this.flagRepository.create({
...data,
createdBy,
});
return this.flagRepository.save(flag);
}
async updateFlag(
id: string,
data: UpdateFlagDto,
updatedBy?: string
): Promise<Flag | null> {
const flag = await this.flagRepository.findOne({ where: { id } });
if (!flag) return null;
Object.assign(flag, data, { updatedBy });
return this.flagRepository.save(flag);
}
async deleteFlag(id: string): Promise<boolean> {
const result = await this.flagRepository.delete(id);
return (result.affected ?? 0) > 0;
}
async softDeleteFlag(id: string, updatedBy?: string): Promise<Flag | null> {
return this.updateFlag(id, { isActive: false }, updatedBy);
}
async toggleFlag(id: string, enabled: boolean, updatedBy?: string): Promise<Flag | null> {
return this.updateFlag(id, { enabled }, updatedBy);
}
// ============================================
// TENANT OVERRIDES - CRUD
// ============================================
async findOverridesForFlag(flagId: string): Promise<TenantOverride[]> {
return this.overrideRepository.find({
where: { flagId },
order: { createdAt: 'DESC' },
});
}
async findOverridesForTenant(tenantId: string): Promise<TenantOverride[]> {
return this.overrideRepository.find({
where: { tenantId },
relations: ['flag'],
order: { createdAt: 'DESC' },
});
}
async findOverride(flagId: string, tenantId: string): Promise<TenantOverride | null> {
return this.overrideRepository.findOne({
where: { flagId, tenantId },
relations: ['flag'],
});
}
async findOverrideById(id: string): Promise<TenantOverride | null> {
return this.overrideRepository.findOne({
where: { id },
relations: ['flag'],
});
}
async createOverride(
data: CreateTenantOverrideDto,
createdBy?: string
): Promise<TenantOverride> {
const override = this.overrideRepository.create({
...data,
createdBy,
});
return this.overrideRepository.save(override);
}
async updateOverride(
id: string,
data: UpdateTenantOverrideDto
): Promise<TenantOverride | null> {
const override = await this.overrideRepository.findOne({ where: { id } });
if (!override) return null;
Object.assign(override, data);
return this.overrideRepository.save(override);
}
async deleteOverride(id: string): Promise<boolean> {
const result = await this.overrideRepository.delete(id);
return (result.affected ?? 0) > 0;
}
async deleteOverrideByFlagAndTenant(flagId: string, tenantId: string): Promise<boolean> {
const result = await this.overrideRepository.delete({ flagId, tenantId });
return (result.affected ?? 0) > 0;
}
// ============================================
// FLAG EVALUATION
// ============================================
/**
* Evaluates a single flag for a tenant.
* Priority: tenant override > global flag > rollout > default (false)
*/
async evaluateFlag(flagCode: string, tenantId: string): Promise<FlagEvaluationResult> {
// 1. Find the flag
const flag = await this.flagRepository.findOne({
where: { code: flagCode, isActive: true },
});
if (!flag) {
return { code: flagCode, enabled: false, source: 'default' };
}
// 2. Check tenant override
const override = await this.overrideRepository.findOne({
where: { flagId: flag.id, tenantId },
});
if (override) {
// Check if override is expired
if (!override.expiresAt || override.expiresAt > new Date()) {
return { code: flagCode, enabled: override.enabled, source: 'override' };
}
}
// 3. Check global flag state
if (!flag.enabled) {
return { code: flagCode, enabled: false, source: 'global' };
}
// 4. Evaluate rollout percentage
if (flag.rolloutPercentage >= 100) {
return { code: flagCode, enabled: true, source: 'global' };
}
if (flag.rolloutPercentage <= 0) {
return { code: flagCode, enabled: false, source: 'rollout' };
}
// 5. Deterministic hash-based rollout
const bucket = this.calculateBucket(flagCode, tenantId);
const enabled = bucket < flag.rolloutPercentage;
return { code: flagCode, enabled, source: 'rollout' };
}
/**
* Evaluates multiple flags for a tenant in a single call.
* More efficient than calling evaluateFlag multiple times.
*/
async evaluateFlags(
flagCodes: string[],
tenantId: string
): Promise<FlagEvaluationResult[]> {
// Get all requested flags in one query
const flags = await this.flagRepository.find({
where: { code: In(flagCodes), isActive: true },
});
const flagMap = new Map(flags.map((f) => [f.code, f]));
// Get all overrides for this tenant and these flags in one query
const flagIds = flags.map((f) => f.id);
const overrides = await this.overrideRepository.find({
where: { flagId: In(flagIds), tenantId },
});
const overrideMap = new Map(overrides.map((o) => [o.flagId, o]));
const now = new Date();
// Evaluate each flag
return flagCodes.map((code) => {
const flag = flagMap.get(code);
if (!flag) {
return { code, enabled: false, source: 'default' as const };
}
const override = overrideMap.get(flag.id);
if (override && (!override.expiresAt || override.expiresAt > now)) {
return { code, enabled: override.enabled, source: 'override' as const };
}
if (!flag.enabled) {
return { code, enabled: false, source: 'global' as const };
}
if (flag.rolloutPercentage >= 100) {
return { code, enabled: true, source: 'global' as const };
}
if (flag.rolloutPercentage <= 0) {
return { code, enabled: false, source: 'rollout' as const };
}
const bucket = this.calculateBucket(code, tenantId);
const enabled = bucket < flag.rolloutPercentage;
return { code, enabled, source: 'rollout' as const };
});
}
/**
* Quick boolean check for a single flag.
*/
async isEnabled(flagCode: string, tenantId: string): Promise<boolean> {
const result = await this.evaluateFlag(flagCode, tenantId);
return result.enabled;
}
// ============================================
// MAINTENANCE
// ============================================
/**
* Removes expired overrides from the database.
* Should be called periodically via cron job.
*/
async cleanupExpiredOverrides(): Promise<number> {
const now = new Date();
const result = await this.overrideRepository
.createQueryBuilder()
.delete()
.where('expires_at IS NOT NULL')
.andWhere('expires_at < :now', { now })
.execute();
return result.affected ?? 0;
}
/**
* Gets statistics for a flag including override counts.
*/
async getFlagStats(flagId: string): Promise<{
flag: Flag | null;
overrideCount: number;
enabledOverrides: number;
disabledOverrides: number;
}> {
const flag = await this.flagRepository.findOne({ where: { id: flagId } });
if (!flag) {
return {
flag: null,
overrideCount: 0,
enabledOverrides: 0,
disabledOverrides: 0,
};
}
const now = new Date();
const overrides = await this.overrideRepository
.createQueryBuilder('o')
.where('o.flag_id = :flagId', { flagId })
.andWhere('(o.expires_at IS NULL OR o.expires_at > :now)', { now })
.getMany();
const enabledOverrides = overrides.filter((o) => o.enabled).length;
const disabledOverrides = overrides.filter((o) => !o.enabled).length;
return {
flag,
overrideCount: overrides.length,
enabledOverrides,
disabledOverrides,
};
}
// ============================================
// PRIVATE HELPERS
// ============================================
/**
* Calculates a deterministic bucket (0-99) for rollout evaluation.
* Uses MD5 hash of flag code + tenant ID for consistent results.
*/
private calculateBucket(flagCode: string, tenantId: string): number {
const input = `${flagCode}:${tenantId}`;
const hash = createHash('md5').update(input).digest('hex');
// Take first 8 chars of hash and convert to number
const num = parseInt(hash.substring(0, 8), 16);
return Math.abs(num % 100);
}
}

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export { FeatureFlagsService } from './feature-flags.service';