OPEN-ISP v0.5 (pickle-lime) — rilis open-source perdana
Aplikasi billing & manajemen ISP (fiber optic) — PWA pelanggan, portal teknisi & kolektor, admin panel lengkap, multi-vendor OLT, RADIUS, WhatsApp/Telegram, pembayaran QRIS. Kredit & lisensi (ISC): - Base kode & repo: alijayanet/billing-rtrw oleh Alijaya Net — terima kasih banyak atas base kode dan repo yang bermanfaat. - Add-on: GoWA, LibreSpeed/OpenSpeedTest, Uptime Kuma, notification-forwarder. - Dikembangkan menjadi OPEN-ISP oleh oxpoe — https://github.com/oxpoe/open-isp
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/**
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* Error Handling Middleware
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* Menangani error secara terpusat dan memberikan response yang konsisten
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*/
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const { logger } = require('../config/logger');
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/**
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* Custom Error Classes
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*/
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class AppError extends Error {
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constructor(message, statusCode, isOperational = true) {
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super(message);
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this.statusCode = statusCode;
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this.isOperational = isOperational;
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this.timestamp = new Date().toISOString();
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Error.captureStackTrace(this, this.constructor);
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}
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}
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class ValidationError extends AppError {
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constructor(message) {
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super(message, 400);
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this.name = 'ValidationError';
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}
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}
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class UnauthorizedError extends AppError {
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constructor(message = 'Unauthorized') {
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super(message, 401);
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this.name = 'UnauthorizedError';
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}
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}
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class ForbiddenError extends AppError {
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constructor(message = 'Forbidden') {
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super(message, 403);
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this.name = 'ForbiddenError';
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}
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}
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class NotFoundError extends AppError {
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constructor(message = 'Resource not found') {
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super(message, 404);
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this.name = 'NotFoundError';
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}
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}
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class ConflictError extends AppError {
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constructor(message = 'Resource conflict') {
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super(message, 409);
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this.name = 'ConflictError';
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}
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}
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class RateLimitError extends AppError {
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constructor(message = 'Rate limit exceeded') {
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super(message, 429);
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this.name = 'RateLimitError';
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}
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}
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class InternalServerError extends AppError {
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constructor(message = 'Internal server error') {
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super(message, 500);
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this.name = 'InternalServerError';
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this.isOperational = false;
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}
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}
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/**
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* Error Handler Middleware
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*/
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function errorHandler(err, req, res, next) {
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if (res.headersSent) return next(err);
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// Log error
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if (err.isOperational) {
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logger.warn(`[Error Handler] Operational error: ${err.message}`, {
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statusCode: err.statusCode,
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path: req.path,
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method: req.method,
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ip: req.ip
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});
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} else {
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logger.error(`[Error Handler] Unexpected error: ${err.message}`, {
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statusCode: err.statusCode,
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path: req.path,
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method: req.method,
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ip: req.ip,
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stack: err.stack
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});
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}
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// Determine status code
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const statusCode = err.statusCode || 500;
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// Determine response format based on request type
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const isApi = req.path.startsWith('/api/');
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const _accH = String(req.headers.accept || '');
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const _xrw = String(req.headers['x-requested-with'] || '').toLowerCase();
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const isJson = isApi || _accH.indexOf('application/json') !== -1 || req.xhr === true || _xrw === 'fetch';
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if (isJson) {
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// JSON response for API requests
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res.status(statusCode).json({
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success: false,
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error: {
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message: err.message || 'An error occurred',
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type: err.name || 'Error',
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statusCode: statusCode,
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...(process.env.NODE_ENV === 'development' && { stack: err.stack })
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}
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});
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} else {
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// HTML response for web requests
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const errorMessage = err.message || 'Terjadi kesalahan. Silakan coba lagi atau hubungi admin.';
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const errorTitle = err.name || 'Error';
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// Set flash message for web pages
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if (req.session) {
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req.session._msg = {
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type: 'error',
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text: errorMessage
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};
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}
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// Render error page (kondisi JSON sudah ditangani di atas)
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res.status(statusCode).render('error', {
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title: `${statusCode} - ${errorTitle}`,
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error: errorMessage,
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statusCode: statusCode,
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path: req.path
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});
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}
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}
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/**
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* 404 Not Found Handler
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*/
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function notFoundHandler(req, res, next) {
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const isApi = req.path.startsWith('/api/');
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const _accH = String(req.headers.accept || '');
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const _xrw = String(req.headers['x-requested-with'] || '').toLowerCase();
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const isJson = isApi || _accH.indexOf('application/json') !== -1 || req.xhr === true || _xrw === 'fetch';
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if (isJson) {
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res.status(404).json({
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success: false,
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error: {
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message: 'Resource not found',
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type: 'NotFoundError',
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statusCode: 404,
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path: req.path
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}
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});
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} else {
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if (req.session) {
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req.session._msg = {
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type: 'error',
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text: 'Halaman tidak ditemukan'
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};
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}
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res.status(404).render('error', {
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title: '404 - Not Found',
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error: 'Halaman yang Anda cari tidak ditemukan',
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statusCode: 404,
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path: req.path
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});
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}
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}
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/**
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* Async Error Wrapper
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* Menangani error di async functions secara otomatis
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*/
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function asyncHandler(fn) {
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return (req, res, next) => {
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Promise.resolve(fn(req, res, next)).catch(next);
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};
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}
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/**
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* Validation Helper
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* Memvalidasi input dan throw ValidationError jika tidak valid
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*/
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function validateInput(data, schema) {
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const errors = [];
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for (const [field, rules] of Object.entries(schema)) {
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const value = data[field];
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// Required check
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if (rules.required && (value === undefined || value === null || value === '')) {
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errors.push(`${field} is required`);
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continue;
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}
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// Skip other validations if field is not required and not provided
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if (!rules.required && (value === undefined || value === null || value === '')) {
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continue;
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}
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// Type check
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if (rules.type) {
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if (rules.type === 'string' && typeof value !== 'string') {
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errors.push(`${field} must be a string`);
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} else if (rules.type === 'number' && typeof value !== 'number') {
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errors.push(`${field} must be a number`);
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} else if (rules.type === 'email' && typeof value === 'string') {
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const emailRegex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
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if (!emailRegex.test(value)) {
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errors.push(`${field} must be a valid email`);
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}
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} else if (rules.type === 'phone' && typeof value === 'string') {
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const phoneRegex = /^[\d\s\-\+]+$/;
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if (!phoneRegex.test(value)) {
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errors.push(`${field} must be a valid phone number`);
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}
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}
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}
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// Min length check
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if (rules.minLength && typeof value === 'string' && value.length < rules.minLength) {
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errors.push(`${field} must be at least ${rules.minLength} characters`);
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}
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// Max length check
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if (rules.maxLength && typeof value === 'string' && value.length > rules.maxLength) {
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errors.push(`${field} must be at most ${rules.maxLength} characters`);
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}
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// Min value check
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if (rules.min !== undefined && typeof value === 'number' && value < rules.min) {
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errors.push(`${field} must be at least ${rules.min}`);
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}
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// Max value check
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if (rules.max !== undefined && typeof value === 'number' && value > rules.max) {
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errors.push(`${field} must be at most ${rules.max}`);
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}
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// Pattern check
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if (rules.pattern && typeof value === 'string') {
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if (!rules.pattern.test(value)) {
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errors.push(`${field} format is invalid`);
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}
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}
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// Custom validation
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if (rules.validate && typeof rules.validate === 'function') {
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const result = rules.validate(value);
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if (result !== true) {
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errors.push(result || `${field} is invalid`);
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}
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}
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}
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if (errors.length > 0) {
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throw new ValidationError(errors.join(', '));
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}
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return true;
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}
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module.exports = {
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errorHandler,
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notFoundHandler,
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asyncHandler,
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validateInput,
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AppError,
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ValidationError,
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UnauthorizedError,
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ForbiddenError,
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NotFoundError,
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ConflictError,
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RateLimitError,
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InternalServerError
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};
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