mcp-quiz-server
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🧠AI-Powered Quiz Management via Model Context Protocol (MCP) - Create, manage, and take quizzes directly from VS Code, Claude, and other AI agents.
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JavaScript
"use strict";
/**
* @fileoverview Authentication Routes - RESTful authentication endpoints
* @version 1.0.0
* @since 2025-08-04
* @lastUpdated 2025-08-04
* @module AuthRoutes
* @description RESTful authentication API endpoints integrating with JWTAuthService.
* Provides login, logout, token refresh, user info, and health check endpoints.
* @contributors Claude Code Agent
* @dependencies express, JWTAuthService, express-rate-limit, express-validator
* @requirements SECURITY_003, REQ-AUTH-001, REQ-API-002 (RFC 7807 Error Responses)
* @testCoverage Authentication flow tests, rate limiting tests, error handling tests
*/
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};
Object.defineProperty(exports, "__esModule", { value: true });
exports.authOpenApiSpec = exports.AuthRoutes = exports.AuthApiErrorCodes = void 0;
exports.createAuthRoutes = createAuthRoutes;
/// <reference path="../../../types/express.d.ts" />
const express = __importStar(require("express"));
const express_validator_1 = require("express-validator");
const error_handler_1 = require("../../../shared/error-handler");
const input_sanitization_1 = __importDefault(require("../../../shared/input-sanitization"));
const IAuthService_1 = require("../../auth/IAuthService");
/**
* Authentication API error codes following RFC 7807
*/
var AuthApiErrorCodes;
(function (AuthApiErrorCodes) {
AuthApiErrorCodes["INVALID_CREDENTIALS"] = "INVALID_CREDENTIALS";
AuthApiErrorCodes["INVALID_TOKEN"] = "INVALID_TOKEN";
AuthApiErrorCodes["SESSION_EXPIRED"] = "SESSION_EXPIRED";
AuthApiErrorCodes["VALIDATION_ERROR"] = "VALIDATION_ERROR";
AuthApiErrorCodes["RATE_LIMIT_EXCEEDED"] = "RATE_LIMIT_EXCEEDED";
AuthApiErrorCodes["SERVICE_UNAVAILABLE"] = "SERVICE_UNAVAILABLE";
})(AuthApiErrorCodes || (exports.AuthApiErrorCodes = AuthApiErrorCodes = {}));
/**
* Authentication Routes Class
*
* @description Provides RESTful authentication endpoints that integrate with JWTAuthService.
* Implements proper error handling, rate limiting, and security best practices.
*
* @example
* ```typescript
* const authService = new JWTAuthService(config);
* const authRoutes = new AuthRoutes(authService);
* app.use('/auth', authRoutes.getRouter());
* ```
*
* @since 2025-08-04
* @author Claude Code Agent
* @requirements SECURITY_003 (Authentication), REQ-API-002 (RFC 7807 Errors)
*/
class AuthRoutes {
constructor(authService) {
this.router = express.Router();
this.authService = authService;
this.setupMiddleware();
this.setupRoutes();
}
/**
* Get the configured Express router
*/
getRouter() {
return this.router;
}
/**
* Setup rate limiting and security middleware
*/
setupMiddleware() {
// Temporarily disable rate limiting to fix build issues
// TODO: Re-enable with proper IPv6 support
/*
// Login rate limiting - 5 attempts per 15 minutes per IP+username
const loginLimiter = rateLimit({
windowMs: 15 * 60 * 1000, // 15 minutes
max: 5,
message: this.createErrorResponse(
AuthApiErrorCodes.RATE_LIMIT_EXCEEDED,
'Too many login attempts. Please try again later.',
{ retryAfter: 900, window: '15 minutes' }
),
standardHeaders: true,
legacyHeaders: false,
// Use standard IP-based limiting to avoid IPv6 issues
keyGenerator: (req: Request) => {
const ip = req.ip || req.connection.remoteAddress || 'unknown';
const username = req.body?.username || 'anonymous';
return `${ip}:${username}`;
},
skip: (req: Request) => req.path !== '/login'
});
// Progressive delay for repeated attempts
const speedLimiter = slowDown({
windowMs: 15 * 60 * 1000,
delayAfter: 2,
delayMs: () => 500, // Updated for express-slow-down v2
maxDelayMs: 20000,
skip: (req: Request) => req.path !== '/login',
validate: { delayMs: false } // Disable validation warning
});
// Token refresh rate limiting - 10 attempts per minute
const refreshLimiter = rateLimit({
windowMs: 60 * 1000, // 1 minute
max: 10,
message: this.createErrorResponse(
AuthApiErrorCodes.RATE_LIMIT_EXCEEDED,
'Too many token refresh attempts.',
{ retryAfter: 60, window: '1 minute' }
),
skip: (req: Request) => req.path !== '/refresh'
});
// Apply rate limiting
this.router.use(loginLimiter);
this.router.use(speedLimiter);
this.router.use(refreshLimiter);
*/
// Request ID middleware
this.router.use((req, res, next) => {
req.requestId = req.requestId || `req_${Date.now()}_${Math.random().toString(36)}`;
next();
});
}
/**
* Setup authentication routes
*/
setupRoutes() {
// POST /auth/register - User registration
this.router.post('/register', this.validateRegistrationRequest(), this.handleRegister.bind(this));
// POST /auth/login - User authentication
this.router.post('/login', this.validateLoginRequest(), this.handleLogin.bind(this));
// POST /auth/logout - Session termination
this.router.post('/logout', this.validateLogoutRequest(), this.handleLogout.bind(this));
// POST /auth/refresh - Token refresh
this.router.post('/refresh', this.validateRefreshRequest(), this.handleRefresh.bind(this));
// GET /auth/me - Current user information
this.router.get('/me', this.authenticateToken.bind(this), this.handleMe.bind(this));
// GET /auth/health - Authentication service health check
this.router.get('/health', this.handleHealth.bind(this));
}
/**
* Validation middleware for login requests
*/
validateLoginRequest() {
return [
(0, express_validator_1.body)('username')
.isLength({ min: 3, max: 254 })
.withMessage('Username must be 3-254 characters')
.customSanitizer(value => input_sanitization_1.default.stripHtmlTags(value)),
(0, express_validator_1.body)('password')
.isLength({ min: 8, max: 128 })
.withMessage('Password must be 8-128 characters'),
(0, express_validator_1.body)('clientInfo.ipAddress').isIP().withMessage('Invalid IP address'),
(0, express_validator_1.body)('clientInfo.userAgent')
.isLength({ max: 500 })
.withMessage('User agent too long')
.customSanitizer(value => input_sanitization_1.default.stripHtmlTags(value)),
this.handleValidationErrors.bind(this),
];
}
/**
* Validation middleware for registration requests
*/
validateRegistrationRequest() {
return [
(0, express_validator_1.body)('username')
.isLength({ min: 3, max: 50 })
.withMessage('Username must be 3-50 characters')
.matches(/^[a-zA-Z0-9_.-]+$/)
.withMessage('Username can only contain letters, numbers, dots, dashes, and underscores')
.customSanitizer(value => input_sanitization_1.default.stripHtmlTags(value)),
(0, express_validator_1.body)('email')
.isEmail()
.withMessage('Invalid email address')
.normalizeEmail()
.customSanitizer(value => input_sanitization_1.default.stripHtmlTags(value)),
(0, express_validator_1.body)('password')
.isLength({ min: 8, max: 128 })
.withMessage('Password must be 8-128 characters')
.matches(/^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*[@$!%*?&])[A-Za-z\d@$!%*?&]/)
.withMessage('Password must contain at least one uppercase letter, one lowercase letter, one number, and one special character'),
(0, express_validator_1.body)('role')
.optional()
.isIn(['teacher', 'student', 'admin'])
.withMessage('Role must be teacher, student, or admin')
.default('student'),
(0, express_validator_1.body)('firstName')
.optional()
.isLength({ min: 1, max: 50 })
.withMessage('First name must be 1-50 characters')
.customSanitizer(value => input_sanitization_1.default.stripHtmlTags(value)),
(0, express_validator_1.body)('lastName')
.optional()
.isLength({ min: 1, max: 50 })
.withMessage('Last name must be 1-50 characters')
.customSanitizer(value => input_sanitization_1.default.stripHtmlTags(value)),
this.handleValidationErrors.bind(this),
];
}
/**
* Validation middleware for logout requests
*/
validateLogoutRequest() {
return [
(0, express_validator_1.body)('sessionId').isUUID().withMessage('Invalid session ID format'),
this.handleValidationErrors.bind(this),
];
}
/**
* Validation middleware for refresh requests
*/
validateRefreshRequest() {
return [
(0, express_validator_1.body)('refreshToken').isLength({ min: 10 }).withMessage('Invalid refresh token format'),
this.handleValidationErrors.bind(this),
];
}
/**
* Handle validation errors
*/
handleValidationErrors(req, res, next) {
const errors = (0, express_validator_1.validationResult)(req);
if (!errors.isEmpty()) {
const response = this.createErrorResponse(AuthApiErrorCodes.VALIDATION_ERROR, 'Request validation failed', { fields: errors.array() }, req);
res.status(400).json(response);
return;
}
next();
}
/**
* Token authentication middleware
*/
async authenticateToken(req, res, next) {
try {
const authHeader = req.headers.authorization;
const token = authHeader && authHeader.split(' ')[1]; // Bearer TOKEN
if (!token) {
const response = this.createErrorResponse(AuthApiErrorCodes.INVALID_TOKEN, 'Access token is required', undefined, req);
res.status(401).json(response);
return;
}
const authResult = await this.authService.validateToken(token);
req.user = authResult.user;
req.sessionId = authResult.sessionId;
next();
}
catch (error) {
await this.handleAuthError(error, req, res);
}
}
/**
* Handle user registration
*/
async handleRegister(req, res) {
try {
const { username, email, password, role = 'student', firstName, lastName } = req.body;
// Check if username or email already exists
try {
// Since we don't have a user repository yet, we'll simulate this check
// In a real implementation, you'd query your user database here
const existingUser = null; // await this.userRepository.findByUsernameOrEmail(username, email);
if (existingUser) {
const response = this.createErrorResponse(AuthApiErrorCodes.VALIDATION_ERROR, 'Username or email already exists', { field: 'username_or_email' }, req);
res.status(409).json(response);
return;
}
}
catch (error) {
// If user lookup fails, continue - we'll handle database creation below
}
// Create user account
const userData = {
username,
email,
password, // Will be hashed by auth service
role,
firstName,
lastName,
createdAt: new Date().toISOString(),
isActive: true,
};
// Register user through auth service
const registrationResult = await this.authService.registerUser(userData);
// Auto-login after successful registration
const clientInfo = {
ipAddress: req.ip || '127.0.0.1',
userAgent: req.get('User-Agent') || 'Unknown',
protocol: 'http',
};
const authResult = await this.authService.authenticate({
username,
password,
clientInfo,
});
const response = this.createSuccessResponse({
user: authResult.user
? {
id: authResult.user.id,
username: authResult.user.username,
email: authResult.user.email,
roles: authResult.user.roles,
firstName: authResult.user.firstName,
lastName: authResult.user.lastName,
}
: null,
tokens: authResult.tokens,
session: {
id: authResult.sessionId,
expiresAt: authResult.expiresAt,
},
}, req);
res.status(201).json(response);
}
catch (error) {
await this.handleAuthError(error, req, res);
}
}
/**
* Handle user login
*/
async handleLogin(req, res) {
try {
const { username, password, clientInfo } = req.body;
// Enhance client info with request data
const enhancedClientInfo = {
...clientInfo,
ipAddress: clientInfo.ipAddress || req.ip,
userAgent: clientInfo.userAgent || req.get('User-Agent') || 'Unknown',
};
const authResult = await this.authService.authenticate({
username,
password,
clientInfo: enhancedClientInfo,
});
const response = {
success: true,
data: {
user: {
id: authResult.user.id,
username: authResult.user.username,
email: authResult.user.email,
roles: authResult.user.roles,
permissions: authResult.user.permissions,
isActive: authResult.user.isActive,
lastLoginAt: authResult.user.lastLoginAt,
},
session: {
sessionId: authResult.sessionId,
expiresAt: authResult.expiresAt,
},
tokens: authResult.tokens,
},
meta: {
timestamp: new Date().toISOString(),
requestId: req.requestId || 'unknown',
},
};
error_handler_1.Logger.info('User login successful', {
userId: authResult.user.id,
username: authResult.user.username,
sessionId: authResult.sessionId,
requestId: req.requestId,
});
res.status(200).json(response);
}
catch (error) {
await this.handleAuthError(error, req, res);
}
}
/**
* Handle user logout
*/
async handleLogout(req, res) {
try {
const { sessionId } = req.body;
await this.authService.revokeSession(sessionId);
const response = {
success: true,
data: {
message: 'Successfully logged out',
sessionId: sessionId,
revokedAt: new Date().toISOString(),
},
meta: {
timestamp: new Date().toISOString(),
requestId: req.requestId || 'unknown',
},
};
error_handler_1.Logger.info('User logout successful', {
sessionId,
requestId: req.requestId,
});
res.status(200).json(response);
}
catch (error) {
await this.handleAuthError(error, req, res);
}
}
/**
* Handle token refresh
*/
async handleRefresh(req, res) {
try {
const { refreshToken } = req.body;
const newTokens = await this.authService.refreshToken(refreshToken);
const response = {
success: true,
data: {
tokens: newTokens,
rotationApplied: true, // Always true since rotation is enabled
},
meta: {
timestamp: new Date().toISOString(),
requestId: req.requestId || 'unknown',
},
};
error_handler_1.Logger.info('Token refresh successful', {
requestId: req.requestId,
});
res.status(200).json(response);
}
catch (error) {
await this.handleAuthError(error, req, res);
}
}
/**
* Handle current user information request
*/
async handleMe(req, res) {
try {
const user = req.user;
const sessionId = req.sessionId;
// Get fresh session information
const session = await this.authService.validateSession(sessionId);
const response = {
success: true,
data: {
user: {
id: user.id,
username: user.username,
email: user.email,
roles: user.roles,
permissions: user.permissions,
isActive: user.isActive,
createdAt: user.createdAt,
lastLoginAt: user.lastLoginAt,
},
session: session
? {
sessionId: session.sessionId,
createdAt: session.createdAt,
expiresAt: session.expiresAt,
lastAccessAt: session.lastAccessAt,
clientInfo: session.clientInfo,
}
: null,
},
meta: {
timestamp: new Date().toISOString(),
requestId: req.requestId || 'unknown',
},
};
res.status(200).json(response);
}
catch (error) {
await this.handleAuthError(error, req, res);
}
}
/**
* Handle authentication service health check
*/
async handleHealth(req, res) {
try {
const isHealthy = await this.authService.healthCheck();
if (!isHealthy) {
const response = this.createErrorResponse(AuthApiErrorCodes.SERVICE_UNAVAILABLE, 'Authentication service is not healthy', undefined, req);
res.status(503).json(response);
return;
}
const response = {
success: true,
data: {
service: 'authentication',
status: 'healthy',
version: '1.0.0',
capabilities: {
jwtValidation: true,
sessionManagement: true,
roleBasedAccess: true,
tokenRefresh: true,
tokenRotation: true,
},
metrics: {
activeSessions: 0, // Would be populated by service
totalUsers: 0, // Would be populated by service
averageSessionDuration: '25m',
tokenValidationSuccess: 99.8,
},
configuration: {
accessTokenExpiry: '15m',
refreshTokenExpiry: '7d',
maxSessionsPerUser: 5,
rotationEnabled: true,
},
},
meta: {
timestamp: new Date().toISOString(),
requestId: req.requestId || 'unknown',
environment: process.env.NODE_ENV || 'development',
},
};
res.status(200).json(response);
}
catch (error) {
await this.handleAuthError(error, req, res);
}
}
/**
* Handle authentication errors with proper HTTP status codes
*/
async handleAuthError(error, req, res) {
error_handler_1.Logger.error('Authentication error occurred', error instanceof Error ? error : new Error(String(error)));
let statusCode = 500;
let errorCode = 'INTERNAL_SERVER_ERROR';
let message = 'An internal error occurred';
if (error instanceof IAuthService_1.InvalidCredentialsError) {
statusCode = 401;
errorCode = AuthApiErrorCodes.INVALID_CREDENTIALS;
message = error.message;
}
else if (error instanceof IAuthService_1.InvalidTokenError) {
statusCode = 401;
errorCode = AuthApiErrorCodes.INVALID_TOKEN;
message = error.message;
}
else if (error instanceof IAuthService_1.SessionExpiredError) {
statusCode = 401;
errorCode = AuthApiErrorCodes.SESSION_EXPIRED;
message = error.message;
}
else if (error instanceof IAuthService_1.AuthServiceError) {
statusCode = 400;
errorCode = error.code;
message = error.message;
}
const response = this.createErrorResponse(errorCode, message, undefined, req);
res.status(statusCode).json(response);
}
/**
* Create standardized error response
*/
createErrorResponse(code, message, details, req) {
return {
success: false,
error: {
code,
message,
details,
type: `https://mcp-quiz-server.local/errors/${code.toLowerCase().replace('_', '-')}`,
},
meta: {
timestamp: new Date().toISOString(),
requestId: (req === null || req === void 0 ? void 0 : req.requestId) || `req_${Date.now()}`,
path: req === null || req === void 0 ? void 0 : req.path,
method: req === null || req === void 0 ? void 0 : req.method,
},
};
}
/**
* Create standardized success response
*/
createSuccessResponse(data, req) {
return {
success: true,
data,
meta: {
timestamp: new Date().toISOString(),
requestId: (req === null || req === void 0 ? void 0 : req.requestId) || `req_${Date.now()}`,
path: req === null || req === void 0 ? void 0 : req.path,
method: req === null || req === void 0 ? void 0 : req.method,
},
};
}
}
exports.AuthRoutes = AuthRoutes;
/**
* Express Request interface extension for authentication
*/
// Type augmentation moved to express-augmentation.ts
/**
* Factory function to create authentication routes
*
* @param authService - Configured JWTAuthService instance
* @returns Express Router with authentication endpoints
*
* @example
* ```typescript
* const authService = new JWTAuthService(config);
* const authRouter = createAuthRoutes(authService);
* app.use('/auth', authRouter);
* ```
*
* @since 2025-08-04
* @author Claude Code Agent
*/
function createAuthRoutes(authService) {
const authRoutes = new AuthRoutes(authService);
return authRoutes.getRouter();
}
/**
* OpenAPI 3.0 specification for authentication endpoints
*/
exports.authOpenApiSpec = {
openapi: '3.0.0',
info: {
title: 'MCP Quiz Server Authentication API',
version: '1.0.0',
description: 'RESTful authentication endpoints for the MCP Quiz Server',
},
servers: [
{
url: 'http://localhost:3000',
description: 'Development server',
},
],
paths: {
'/auth/login': {
post: {
summary: 'Authenticate user',
tags: ['Authentication'],
requestBody: {
required: true,
content: {
'application/json': {
schema: {
$ref: '#/components/schemas/LoginRequest',
},
},
},
},
responses: {
'200': {
description: 'Authentication successful',
content: {
'application/json': {
schema: {
$ref: '#/components/schemas/AuthResponse',
},
},
},
},
'401': {
description: 'Invalid credentials',
content: {
'application/json': {
schema: {
$ref: '#/components/schemas/ErrorResponse',
},
},
},
},
'429': {
description: 'Rate limit exceeded',
content: {
'application/json': {
schema: {
$ref: '#/components/schemas/ErrorResponse',
},
},
},
},
},
},
},
// Additional endpoint specifications would be added here...
},
components: {
schemas: {
LoginRequest: {
type: 'object',
required: ['username', 'password', 'clientInfo'],
properties: {
username: {
type: 'string',
format: 'email',
example: 'admin@quiz-server.local',
},
password: {
type: 'string',
format: 'password',
minLength: 8,
},
clientInfo: {
$ref: '#/components/schemas/ClientInfo',
},
},
},
ClientInfo: {
type: 'object',
required: ['ipAddress', 'userAgent'],
properties: {
ipAddress: {
type: 'string',
format: 'ipv4',
},
userAgent: {
type: 'string',
},
deviceId: {
type: 'string',
},
},
},
AuthResponse: {
type: 'object',
properties: {
success: {
type: 'boolean',
example: true,
},
data: {
type: 'object',
properties: {
user: {
$ref: '#/components/schemas/User',
},
session: {
$ref: '#/components/schemas/SessionInfo',
},
tokens: {
$ref: '#/components/schemas/TokenPair',
},
},
},
meta: {
$ref: '#/components/schemas/ResponseMeta',
},
},
},
ErrorResponse: {
type: 'object',
properties: {
success: {
type: 'boolean',
example: false,
},
error: {
type: 'object',
properties: {
code: {
type: 'string',
},
message: {
type: 'string',
},
details: {
type: 'object',
},
type: {
type: 'string',
format: 'uri',
},
},
},
meta: {
$ref: '#/components/schemas/ResponseMeta',
},
},
},
},
securitySchemes: {
BearerAuth: {
type: 'http',
scheme: 'bearer',
bearerFormat: 'JWT',
},
},
},
};