714 lines
24 KiB
JavaScript
714 lines
24 KiB
JavaScript
require('dotenv').config();
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const express = require('express');
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const { Pool } = require('pg');
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const session = require('express-session');
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const cors = require('cors');
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const path = require('path');
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const fs = require('fs');
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const bcrypt = require('bcryptjs');
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// Initialize Express app
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const app = express();
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const PORT = process.env.PORT || 3000;
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// Middleware
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app.use(cors());
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app.use(express.json());
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app.use(express.static(path.join(__dirname, 'public')));
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function requireAuth(req, res, next) {
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if (!req.session || !req.session.authenticated) {
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return res.status(401).json({ error: 'Unauthorized' });
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}
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next();
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}
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// Session configuration
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app.use(session({
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secret: process.env.SESSION_SECRET || 'default-secret-change-this',
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resave: false,
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saveUninitialized: false,
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cookie: {
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secure: process.env.NODE_ENV === 'production',
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httpOnly: true,
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maxAge: 1000 * 60 * 60 * 24 * 7 // 7 days
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}
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}));
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// Database connection pool
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const pool = new Pool({
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host: process.env.DB_HOST || 'localhost',
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port: process.env.DB_PORT || 5432,
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database: process.env.DB_NAME || 'postgres',
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user: process.env.DB_USER || 'postgres',
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password: process.env.DB_PASSWORD || 'postgres',
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});
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// Test database connection
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pool.connect((err, client, release) => {
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if (err) {
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console.error('❌ Error connecting to PostgreSQL:', err.message);
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console.log('Проверьте настройки в .env файле');
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} else {
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console.log('✅ Connected to PostgreSQL database');
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console.log(` Host: ${process.env.DB_HOST || 'localhost'}:${process.env.DB_PORT || 5432}`);
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console.log(` Database: ${process.env.DB_NAME || 'postgres'}`);
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release();
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}
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});
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// Initialize database schema
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async function initializeDatabase() {
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const client = await pool.connect();
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try {
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// Check if users table exists, if not create it
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await client.query(`
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CREATE TABLE IF NOT EXISTS users (
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id SERIAL PRIMARY KEY,
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name VARCHAR(255) NOT NULL,
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email VARCHAR(255) UNIQUE NOT NULL,
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password VARCHAR(255) NOT NULL,
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role VARCHAR(50) NOT NULL DEFAULT 'viewer',
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active BOOLEAN DEFAULT true,
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created_at TIMESTAMP DEFAULT NOW(),
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updated_at TIMESTAMP DEFAULT NOW()
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);
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CREATE TABLE IF NOT EXISTS activity_logs (
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id SERIAL PRIMARY KEY,
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user_id INTEGER REFERENCES users(id) ON DELETE CASCADE,
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action VARCHAR(255),
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details JSONB,
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created_at TIMESTAMP DEFAULT NOW()
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);
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CREATE INDEX IF NOT EXISTS idx_activity_logs_user_id ON activity_logs(user_id);
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CREATE INDEX IF NOT EXISTS idx_activity_logs_created_at ON activity_logs(created_at);
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`);
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// Create default admin user if doesn't exist
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const adminExists = await client.query(
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'SELECT id FROM users WHERE email = $1',
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['admin@example.com']
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);
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if (adminExists.rows.length === 0) {
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const hashedPassword = await bcrypt.hash('admin123', 10);
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await client.query(
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`INSERT INTO users (name, email, password, role, active)
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VALUES ($1, $2, $3, $4, $5)`,
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['Admin', 'admin@example.com', hashedPassword, 'superadmin', true]
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);
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console.log('✅ Created default admin user: admin@example.com / admin123');
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}
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console.log('✅ Database schema initialized');
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} catch (error) {
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console.error('Database initialization error:', error);
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} finally {
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client.release();
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}
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}
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// Initialize on startup
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initializeDatabase();
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// Routes
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const authRoutes = require('./src/routes/auth');
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const userRoutes = require('./src/routes/users');
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const dbRoutes = require('./src/routes/db-tables');
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const adminRoutes = require('./src/routes/admin');
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// API Routes
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app.use('/api/auth', authRoutes(pool));
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app.use('/api/users', userRoutes(pool));
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app.use('/api/db', dbRoutes(pool));
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app.use('/api/admin', adminRoutes(pool));
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// SPA catch-all route
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app.get('*', (req, res) => {
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res.sendFile(path.join(__dirname, 'public', 'index.html'));
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});
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// Error handling middleware
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app.use((err, req, res, next) => {
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console.error('Error:', err);
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res.status(500).json({
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success: false,
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message: 'Internal server error',
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error: process.env.NODE_ENV === 'development' ? err.message : undefined
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});
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});
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// Start server
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app.listen(PORT, () => {
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console.log(`\n🚀 PostgreSQL Admin Panel running at http://localhost:${PORT}`);
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console.log(`📦 Environment: ${process.env.NODE_ENV || 'development'}`);
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console.log(`\n💾 Database Connection:`);
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console.log(` Host: ${process.env.DB_HOST || 'localhost'}`);
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console.log(` Database: ${process.env.DB_NAME || 'postgres'}`);
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console.log('\n');
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});
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// Graceful shutdown
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process.on('SIGTERM', () => {
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console.log('SIGTERM received. Shutting down gracefully...');
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pool.end(() => {
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console.log('Connection pool closed');
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process.exit(0);
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});
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});
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module.exports = app;
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app.post('/api/login', async (req, res) => {
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const { username, password } = req.body;
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// Try users.json first
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const user = getUser(username);
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if (user && password === user.password) {
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try {
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const client = await pool.connect();
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const result = await client.query('SELECT NOW() as time');
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client.release();
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req.session.authenticated = true;
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req.session.username = username;
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req.session.role = user.role;
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res.json({
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success: true,
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message: 'Login successful',
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role: user.role,
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dbInfo: {
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host: process.env.DB_HOST,
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port: process.env.DB_PORT,
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database: process.env.DB_NAME,
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connected: true,
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serverTime: result.rows[0].time
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}
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});
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return;
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} catch (err) {
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res.status(500).json({
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success: false,
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error: 'Database connection failed',
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details: err.message
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});
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return;
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}
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}
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// Fallback to env-based admin
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if (username === process.env.ADMIN_USERNAME && password === process.env.ADMIN_PASSWORD) {
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try {
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const client = await pool.connect();
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const result = await client.query('SELECT NOW() as time');
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client.release();
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req.session.authenticated = true;
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req.session.username = username;
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req.session.role = 'superadmin';
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res.json({
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success: true,
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message: 'Login successful',
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role: 'superadmin',
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dbInfo: {
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host: process.env.DB_HOST,
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port: process.env.DB_PORT,
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database: process.env.DB_NAME,
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connected: true,
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serverTime: result.rows[0].time
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}
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});
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return;
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} catch (err) {
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res.status(500).json({
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success: false,
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error: 'Database connection failed',
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details: err.message
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});
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return;
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}
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}
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res.status(401).json({
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success: false,
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error: 'Invalid credentials'
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});
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});
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// Logout
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app.post('/api/logout', (req, res) => {
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req.session.destroy();
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res.json({ success: true });
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});
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// Check session
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app.get('/api/session', (req, res) => {
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if (req.session.authenticated) {
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res.json({
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authenticated: true,
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username: req.session.username,
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role: req.session.role || 'viewer',
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permissions: getRolePermissions(req.session.role),
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dbInfo: {
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host: process.env.DB_HOST,
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port: process.env.DB_PORT,
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database: process.env.DB_NAME
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}
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});
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} else {
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res.json({ authenticated: false });
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}
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});
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// Get all tables
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app.get('/api/tables', requireAuth, async (req, res) => {
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try {
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const role = req.session.role || 'viewer';
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const result = await pool.query(`
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SELECT
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table_name as name,
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(SELECT COUNT(*) FROM information_schema.columns WHERE table_name = t.table_name) as column_count
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FROM information_schema.tables t
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WHERE table_schema = 'public'
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ORDER BY table_name
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`);
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// Filter tables by access rights (folders)
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const accessibleTables = result.rows.filter(table => canAccessTable(role, table.name));
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// Get row counts for each table
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const tablesWithCounts = await Promise.all(
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accessibleTables.map(async (table) => {
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try {
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const countResult = await pool.query(`SELECT COUNT(*) as count FROM "${table.name}"`);
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return {
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...table,
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rows: parseInt(countResult.rows[0].count),
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size: 'calculating...' // Would need pg_size_pretty for real size
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};
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} catch (e) {
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return { ...table, rows: 0, size: '0 KB' };
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}
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})
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);
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res.json(tablesWithCounts);
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} catch (err) {
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res.status(500).json({ error: err.message });
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}
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});
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// Get table data with pagination, search, filters and sort
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app.get('/api/tables/:tableName/data', requireAuth, async (req, res) => {
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const { tableName } = req.params;
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const role = req.session.role || 'viewer';
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// Check access for this table
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if (!canAccessTable(role, tableName)) {
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return res.status(403).json({ error: 'Access denied' });
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}
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const page = parseInt(req.query.page) || 1;
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const limit = parseInt(req.query.limit) || 10;
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const search = req.query.search || '';
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const filters = req.query.filters ? JSON.parse(req.query.filters) : [];
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const sortColumn = req.query.sortColumn || '';
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const sortDirection = req.query.sortDirection || 'ASC';
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const offset = (page - 1) * limit;
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try {
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let whereClause = '';
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let params = [];
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let paramIndex = 1;
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// Search
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if (search) {
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const columnsResult = await pool.query(`
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SELECT column_name
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FROM information_schema.columns
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WHERE table_name = $1 AND table_schema = 'public'
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ORDER BY ordinal_position
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`, [tableName]);
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const columns = columnsResult.rows.map(row => row.column_name);
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const searchConditions = columns.map(col => `CAST("${col}" AS TEXT) ILIKE $${paramIndex}`).join(' OR ');
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whereClause = `WHERE ${searchConditions}`;
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params.push(`%${search}%`);
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paramIndex++;
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}
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// Filters
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if (filters && typeof filters === 'object') {
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const filterConditions = Object.entries(filters).map(([column, value]) => {
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if (value && value.trim()) {
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params.push(`%${value}%`);
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paramIndex++;
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// Use CAST to TEXT to support UUID and other non-text column types
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return `CAST("${column}" AS TEXT) ILIKE $${paramIndex - 1}`;
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}
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return null;
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}).filter(c => c);
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if (filterConditions.length > 0) {
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whereClause = whereClause ? `${whereClause} AND ${filterConditions.join(' AND ')}` : `WHERE ${filterConditions.join(' AND ')}`;
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}
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}
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// Get total count
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const countResult = await pool.query(`SELECT COUNT(*) as total FROM "${tableName}" ${whereClause}`, params);
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const total = parseInt(countResult.rows[0].total);
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// Build ORDER BY
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let orderBy = 'ORDER BY (SELECT NULL)'; // Default no order
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if (sortColumn) {
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orderBy = `ORDER BY "${sortColumn}" ${sortDirection}`;
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}
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// Get data
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const result = await pool.query(`
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SELECT * FROM "${tableName}"
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${whereClause}
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${orderBy}
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LIMIT $${paramIndex} OFFSET $${paramIndex + 1}
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`, [...params, limit, offset]);
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res.json({
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data: result.rows,
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total,
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page,
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limit,
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totalPages: Math.ceil(total / limit)
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});
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} catch (err) {
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res.status(500).json({ error: err.message });
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}
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});
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// Get table structure
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app.get('/api/tables/:tableName/structure', requireAuth, async (req, res) => {
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const { tableName } = req.params;
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try {
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const result = await pool.query(`
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SELECT
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c.column_name as name,
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c.data_type as type,
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c.is_nullable as nullable,
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c.column_default as default_value,
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CASE WHEN kcu.column_name IS NOT NULL THEN true ELSE false END as is_primary
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FROM information_schema.columns c
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LEFT JOIN information_schema.table_constraints tc
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ON tc.table_name = c.table_name
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AND tc.table_schema = c.table_schema
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AND tc.constraint_type = 'PRIMARY KEY'
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LEFT JOIN information_schema.key_column_usage kcu
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ON kcu.constraint_name = tc.constraint_name
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AND kcu.table_schema = tc.table_schema
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AND kcu.column_name = c.column_name
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WHERE c.table_name = $1 AND c.table_schema = 'public'
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ORDER BY c.ordinal_position
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`, [tableName]);
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res.json(result.rows);
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} catch (err) {
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res.status(500).json({ error: err.message });
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}
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});
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// Create table
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app.post('/api/tables', requireAuth, async (req, res) => {
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const { name, columns } = req.body;
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const role = req.session.role || 'viewer';
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const folder = getTableFolder(name);
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const perms = getRolePermissions(role);
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if (!perms.canCreate || (perms.folders && !perms.folders.includes(folder))) {
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return res.status(403).json({ error: 'Access denied' });
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}
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try {
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let columnsSQL = columns.map(col => {
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let def = `"${col.name}" ${col.type}`;
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if (col.pk) def += ' PRIMARY KEY';
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if (!col.nullable && !col.pk) def += ' NOT NULL';
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return def;
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}).join(', ');
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const sql = `CREATE TABLE "${name}" (${columnsSQL})`;
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await pool.query(sql);
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res.json({ success: true, message: 'Table created' });
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} catch (err) {
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res.status(500).json({ error: err.message });
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}
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});
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// Delete table
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app.delete('/api/tables/:tableName', requireAuth, async (req, res) => {
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const { tableName } = req.params;
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const role = req.session.role || 'viewer';
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const folder = getTableFolder(tableName);
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const perms = getRolePermissions(role);
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if (!perms.canDelete || (perms.folders && !perms.folders.includes(folder))) {
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return res.status(403).json({ error: 'Access denied' });
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}
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try {
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await pool.query(`DROP TABLE IF EXISTS "${tableName}"`);
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res.json({ success: true, message: 'Table deleted' });
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} catch (err) {
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res.status(500).json({ error: err.message });
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}
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});
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// Insert record
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app.post('/api/tables/:tableName/records', requireAuth, async (req, res) => {
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const { tableName } = req.params;
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const data = req.body;
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const role = req.session.role || 'viewer';
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const folder = getTableFolder(tableName);
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const perms = getRolePermissions(role);
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if (!perms.canEdit || (perms.folders && !perms.folders.includes(folder))) {
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return res.status(403).json({ error: 'Access denied' });
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}
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try {
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// Get table structure to check types
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const structureResult = await pool.query(`
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SELECT column_name, data_type
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FROM information_schema.columns
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WHERE table_name = $1 AND table_schema = 'public'
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`, [tableName]);
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const structure = structureResult.rows;
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// Filter out empty UUIDs and generate if needed
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const filteredData = {};
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for (const [key, value] of Object.entries(data)) {
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const colInfo = structure.find(col => col.column_name === key);
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if (colInfo && colInfo.data_type === 'uuid') {
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if (!value || value.trim() === '') {
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// Generate UUID for empty UUID fields
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filteredData[key] = require('crypto').randomUUID();
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} else {
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// Validate UUID
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const uuidRegex = /^[0-9a-f]{8}-[0-9a-f]{4}-[1-5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i;
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if (uuidRegex.test(value)) {
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filteredData[key] = value;
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} else {
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// Invalid UUID, generate new one
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filteredData[key] = require('crypto').randomUUID();
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}
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}
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} else if (value !== '') {
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filteredData[key] = value;
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}
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}
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const columns = Object.keys(filteredData);
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const values = Object.values(filteredData);
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const placeholders = values.map((_, i) => `$${i + 1}`).join(', ');
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const sql = `INSERT INTO "${tableName}" (${columns.map(c => `"${c}"`).join(', ')}) VALUES (${placeholders}) RETURNING *`;
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const result = await pool.query(sql, values);
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res.json({ success: true, data: result.rows[0] });
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} catch (err) {
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res.status(500).json({ error: err.message });
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}
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});
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|
// Update record
|
|
app.put('/api/tables/:tableName/records/:pk', requireAuth, async (req, res) => {
|
|
const { tableName, pk } = req.params;
|
|
const role = req.session.role || 'viewer';
|
|
const folder = getTableFolder(tableName);
|
|
const perms = getRolePermissions(role);
|
|
if (!perms.canEdit || (perms.folders && !perms.folders.includes(folder))) {
|
|
return res.status(403).json({ error: 'Access denied' });
|
|
}
|
|
|
|
const data = req.body;
|
|
const columns = Object.keys(data);
|
|
const values = Object.values(data);
|
|
const setClause = columns.map((col, i) => `"${col}" = $${i + 1}`).join(', ');
|
|
|
|
try {
|
|
const primaryKey = await getPrimaryKeyColumn(tableName) || 'id';
|
|
const sql = `UPDATE "${tableName}" SET ${setClause} WHERE "${primaryKey}" = $${values.length + 1} RETURNING *`;
|
|
const result = await pool.query(sql, [...values, pk]);
|
|
res.json({ success: true, data: result.rows[0] });
|
|
} catch (err) {
|
|
res.status(500).json({ error: err.message });
|
|
}
|
|
});
|
|
|
|
// Delete record
|
|
app.delete('/api/tables/:tableName/records/:pk', requireAuth, async (req, res) => {
|
|
const { tableName, pk } = req.params;
|
|
const role = req.session.role || 'viewer';
|
|
const folder = getTableFolder(tableName);
|
|
const perms = getRolePermissions(role);
|
|
if (!perms.canDelete || (perms.folders && !perms.folders.includes(folder))) {
|
|
return res.status(403).json({ error: 'Access denied' });
|
|
}
|
|
|
|
try {
|
|
const primaryKey = await getPrimaryKeyColumn(tableName) || 'id';
|
|
await pool.query(`DELETE FROM "${tableName}" WHERE "${primaryKey}" = $1`, [pk]);
|
|
res.json({ success: true });
|
|
} catch (err) {
|
|
res.status(500).json({ error: err.message });
|
|
}
|
|
});
|
|
|
|
// Add a new column
|
|
app.post('/api/tables/:tableName/columns', requireAuth, async (req, res) => {
|
|
const { tableName } = req.params;
|
|
const { name, type, nullable = true, defaultValue, primaryKey } = req.body;
|
|
|
|
if (!name || !type) {
|
|
return res.status(400).json({ error: 'Column name and type are required' });
|
|
}
|
|
|
|
const parts = [`"${name}" ${type}`];
|
|
if (primaryKey) parts.push('PRIMARY KEY');
|
|
if (!nullable) parts.push('NOT NULL');
|
|
if (defaultValue !== undefined && defaultValue !== null && defaultValue !== '') {
|
|
parts.push(`DEFAULT ${defaultValue}`);
|
|
}
|
|
|
|
try {
|
|
await pool.query(`ALTER TABLE "${tableName}" ADD COLUMN ${parts.join(' ')}`);
|
|
res.json({ success: true });
|
|
} catch (err) {
|
|
res.status(500).json({ error: err.message });
|
|
}
|
|
});
|
|
|
|
// Modify an existing column
|
|
app.put('/api/tables/:tableName/columns/:columnName', requireAuth, async (req, res) => {
|
|
const { tableName, columnName } = req.params;
|
|
const { type, nullable, defaultValue } = req.body;
|
|
|
|
try {
|
|
if (type) {
|
|
await pool.query(`ALTER TABLE "${tableName}" ALTER COLUMN "${columnName}" TYPE ${type}`);
|
|
}
|
|
|
|
if (typeof nullable === 'boolean') {
|
|
const nullSql = nullable ? 'DROP NOT NULL' : 'SET NOT NULL';
|
|
await pool.query(`ALTER TABLE "${tableName}" ALTER COLUMN "${columnName}" ${nullSql}`);
|
|
}
|
|
|
|
if (defaultValue !== undefined) {
|
|
if (defaultValue === null || defaultValue === '') {
|
|
await pool.query(`ALTER TABLE "${tableName}" ALTER COLUMN "${columnName}" DROP DEFAULT`);
|
|
} else {
|
|
await pool.query(`ALTER TABLE "${tableName}" ALTER COLUMN "${columnName}" SET DEFAULT ${defaultValue}`);
|
|
}
|
|
}
|
|
|
|
res.json({ success: true });
|
|
} catch (err) {
|
|
res.status(500).json({ error: err.message });
|
|
}
|
|
});
|
|
|
|
// Drop a column
|
|
app.delete('/api/tables/:tableName/columns/:columnName', requireAuth, async (req, res) => {
|
|
const { tableName, columnName } = req.params;
|
|
|
|
try {
|
|
await pool.query(`ALTER TABLE "${tableName}" DROP COLUMN IF EXISTS "${columnName}"`);
|
|
res.json({ success: true });
|
|
} catch (err) {
|
|
res.status(500).json({ error: err.message });
|
|
}
|
|
});
|
|
|
|
// Execute SQL
|
|
app.post('/api/query', requireAuth, async (req, res) => {
|
|
const { sql } = req.body;
|
|
|
|
try {
|
|
const result = await pool.query(sql);
|
|
res.json({
|
|
success: true,
|
|
rows: result.rows,
|
|
rowCount: result.rowCount,
|
|
command: result.command
|
|
});
|
|
} catch (err) {
|
|
res.status(500).json({ error: err.message });
|
|
}
|
|
});
|
|
|
|
// Get indexes
|
|
app.get('/api/tables/:tableName/indexes', requireAuth, async (req, res) => {
|
|
const { tableName } = req.params;
|
|
|
|
try {
|
|
const result = await pool.query(`
|
|
SELECT
|
|
indexname as name,
|
|
indexdef as definition
|
|
FROM pg_indexes
|
|
WHERE tablename = $1
|
|
`, [tableName]);
|
|
|
|
const indexes = result.rows.map(row => ({
|
|
name: row.name,
|
|
columns: row.definition.match(/\((.*?)\)/)?.[1] || 'unknown',
|
|
unique: row.definition.includes('UNIQUE'),
|
|
type: 'btree'
|
|
}));
|
|
|
|
res.json(indexes);
|
|
} catch (err) {
|
|
res.status(500).json({ error: err.message });
|
|
}
|
|
});
|
|
|
|
// Create index
|
|
app.post('/api/tables/:tableName/indexes', requireAuth, async (req, res) => {
|
|
const { tableName } = req.params;
|
|
const { name, columns, unique } = req.body;
|
|
|
|
try {
|
|
const uniqueStr = unique ? 'UNIQUE' : '';
|
|
const sql = `CREATE ${uniqueStr} INDEX "${name}" ON "${tableName}" (${columns})`;
|
|
await pool.query(sql);
|
|
res.json({ success: true });
|
|
} catch (err) {
|
|
res.status(500).json({ error: err.message });
|
|
}
|
|
});
|
|
|
|
// Drop index
|
|
app.delete('/api/indexes/:indexName', requireAuth, async (req, res) => {
|
|
const { indexName } = req.params;
|
|
|
|
try {
|
|
await pool.query(`DROP INDEX IF EXISTS "${indexName}"`);
|
|
res.json({ success: true });
|
|
} catch (err) {
|
|
res.status(500).json({ error: err.message });
|
|
}
|
|
});
|
|
|
|
// Start server
|
|
app.listen(PORT, () => {
|
|
console.log(`🚀 Server running on http://localhost:${PORT}`);
|
|
console.log('');
|
|
console.log('🔑 Default login credentials:');
|
|
console.log(` Username: ${process.env.ADMIN_USERNAME || 'admin'}`);
|
|
console.log(` Password: ${process.env.ADMIN_PASSWORD || 'admin'}`);
|
|
console.log('');
|
|
console.log('📝 Make sure to configure your database in .env file');
|
|
});
|