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const bcrypt = require('bcryptjs');
const validator = require('validator');
const crypto = require('crypto');
class User {
static async create({ username, password, email, full_name, role = 'auditor' }) {
try {
// Validate all required fields
if (!username || !password || !email || !full_name) {
throw new Error('All fields are required: username, password, email, full_name');
}
// Validate field lengths match database schema
if (username.length > 50) throw new Error('Username must be 50 characters or less');
if (email.length > 100) throw new Error('Email must be 100 characters or less');
if (full_name.length > 100) throw new Error('Full name must be 100 characters or less');
// Validate email format
if (!validator.isEmail(email)) {
throw new Error('Invalid email format');
}
// Validate password strength
if (password.length < 8) {
throw new Error('Password must be at least 8 characters');
}
if (!/[A-Z]/.test(password)) {
throw new Error('Password must contain at least one uppercase letter');
}
if (!/[0-9]/.test(password)) {
throw new Error('Password must contain at least one number');
}
// Validate role matches enum
const validRoles = ['auditor', 'manager', 'admin'];
if (role && !validRoles.includes(role)) {
throw new Error('Invalid user role');
}
// Check for existing user
const existingUser = await this.findByUsernameOrEmail(username, email);
if (existingUser) {
throw new Error('Username or email already exists');
}
// Hash password with salt rounds
const password_hash = await bcrypt.hash(password, 12);
// Create user in database
const [result] = await pool.query(
`INSERT INTO users
(username, password_hash, email, full_name, role, created_at)
VALUES (?, ?, ?, ?, ?, NOW())`,
[username, password_hash, email, full_name, role]
);
// Return the new user's ID
return result.insertId;
} catch (error) {
console.error('User creation error:', error);
throw error;
}
}
static async findByUsername(username) {
if (!username || username.length > 50) return null;
const [rows] = await pool.query(
'SELECT * FROM users WHERE username = ? LIMIT 1',
[username]
);
if (!rows || rows.length === 0) {
return null;
}
return rows[0];
}
static async findByEmail(email) {
if (!email || email.length > 100) return null;
const [rows] = await pool.query(
'SELECT * FROM users WHERE email = ? LIMIT 1',
[email]
);
return rows[0];
}
static async findByUsernameOrEmail(username, email) {
if ((!username || username.length > 50) && (!email || email.length > 100)) return null;
const [rows] = await pool.query(
'SELECT * FROM users WHERE username = ? OR email = ? LIMIT 1',
[username, email]
);
return rows[0];
}
static async findById(id) {
if (!id || isNaN(id)) return null;
const [rows] = await pool.query(
`SELECT id, username, email, full_name, role, is_active,
last_login, failed_login_attempts, created_at, updated_at
FROM users WHERE id = ? LIMIT 1`,
[id]
);
return rows[0];
}
static async updateLastLogin(id) {
if (!id || isNaN(id)) return false;
await pool.query(
'UPDATE users SET last_login = NOW() WHERE id = ?',
[id]
);
return true;
}
static async incrementFailedAttempts(id) {
if (!id || isNaN(id)) return false;
await pool.query(
'UPDATE users SET failed_login_attempts = failed_login_attempts + 1 WHERE id = ?',
[id]
);
return true;
}
static async resetFailedAttempts(id) {
if (!id || isNaN(id)) return false;
await pool.query(
'UPDATE users SET failed_login_attempts = 0 WHERE id = ?',
[id]
);
return true;
}
static async updatePassword(id, newPassword) {
if (!id || isNaN(id) || !newPassword) return false;
if (newPassword.length < 8) {
throw new Error('Password must be at least 8 characters');
}
const password_hash = await bcrypt.hash(newPassword, 12);
await pool.query(
'UPDATE users SET password_hash = ?, password_reset_token = NULL, password_reset_expires = NULL WHERE id = ?',
[password_hash, id]
);
return true;
}
static async deactivateUser(id) {
if (!id || isNaN(id)) return false;
await pool.query(
'UPDATE users SET is_active = FALSE, updated_at = NOW() WHERE id = ?',
[id]
);
return true;
}
static async activateUser(id) {
if (!id || isNaN(id)) return false;
await pool.query(
'UPDATE users SET is_active = TRUE, updated_at = NOW() WHERE id = ?',
[id]
);
return true;
}
static async getAllUsers(options = {}) {
const {
page = 1,
limit = 10,
activeOnly = true,
role = null
} = options;
const offset = (page - 1) * limit;
let query = `SELECT id, username, email, full_name, role, is_active,
last_login, created_at FROM users`;
const params = [];
const conditions = [];
if (activeOnly) {
conditions.push('is_active = TRUE');
}
if (role) {
conditions.push('role = ?');
params.push(role);
}
if (conditions.length) {
query += ' WHERE ' + conditions.join(' AND ');
}
query += ' ORDER BY created_at DESC LIMIT ? OFFSET ?';
params.push(limit, offset);
const [rows] = await pool.query(query, params);
return rows;
}
static async comparePassword(password, hash) {
if (!password || !hash) return false;
return await bcrypt.compare(password, hash);
}
static async generateResetToken() {
return crypto.randomBytes(32).toString('hex');
}
static async setResetToken(email, token, expires) {
if (!email || !token || !expires) return false;
await pool.query(
`UPDATE users
SET password_reset_token = ?,
password_reset_expires = ?
WHERE email = ?`,
[token, expires, email]
);
return true;
}
static async findByResetToken(token) {
if (!token) return null;
const [rows] = await pool.query(
`SELECT * FROM users
WHERE password_reset_token = ?
AND password_reset_expires > NOW()
LIMIT 1`,
[token]
);
return rows[0];
}
static async clearResetToken(id) {
if (!id || isNaN(id)) return false;
await pool.query(
`UPDATE users
SET password_reset_token = NULL,
password_reset_expires = NULL
WHERE id = ?`,
[id]
);
return true;
}
static async countUsers(activeOnly = true) {
const [rows] = await pool.query(
`SELECT COUNT(*) AS count FROM users
${activeOnly ? 'WHERE is_active = TRUE' : ''}`
);
return rows[0].count;
}
static async updateProfile(id, updates) {
if (!id || isNaN(id) || !updates || typeof updates !== 'object') {
return false;
}
const allowedFields = ['full_name', 'email'];
const fieldsToUpdate = {};
// Filter only allowed fields
for (const field in updates) {
if (allowedFields.includes(field)) {
fieldsToUpdate[field] = updates[field];
}
}
if (Object.keys(fieldsToUpdate).length === 0) {
return false;
}
// Validate email if being updated
if (fieldsToUpdate.email) {
if (fieldsToUpdate.email.length > 100) {
throw new Error('Email must be 100 characters or less');
}
if (!validator.isEmail(fieldsToUpdate.email)) {
throw new Error('Invalid email format');
}
// Check if email already exists
const existingUser = await this.findByEmail(fieldsToUpdate.email);
if (existingUser && existingUser.id !== id) {
throw new Error('Email already in use by another account');
}
}
// Validate full_name if being updated
if (fieldsToUpdate.full_name && fieldsToUpdate.full_name.length > 100) {
throw new Error('Full name must be 100 characters or less');
}
const setClause = Object.keys(fieldsToUpdate)
.map(field => `${field} = ?`)
.join(', ');
const values = Object.values(fieldsToUpdate);
values.push(id);
await pool.query(
`UPDATE users SET ${setClause}, updated_at = NOW() WHERE id = ?`,
values
);
return true;
}
static async changeRole(id, newRole) {
if (!id || isNaN(id) || !newRole) return false;
const validRoles = ['auditor', 'manager', 'admin'];
if (!validRoles.includes(newRole)) {
throw new Error('Invalid user role');
}
await pool.query(
'UPDATE users SET role = ?, updated_at = NOW() WHERE id = ?',
[newRole, id]
);
return true;
}
}
module.exports = User; |