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const jwt = require('jsonwebtoken');
const User = require('../models/User');
class AuthController {
// Register a new user
async register(req, res, next) {
try {
const { email, password, name } = req.body;
// Check if user already exists
const existingUser = await User.findByEmail(email);
if (existingUser) {
return res.status(409).json({
error: 'User already exists',
message: 'A user with this email address already exists'
});
}
// Hash password
const saltRounds = parseInt(process.env.BCRYPT_ROUNDS) || 12;
const hashedPassword = await bcrypt.hash(password, saltRounds);
// Create user
const user = await User.create({
email,
password: hashedPassword,
name
});
// Generate JWT token
const token = jwt.sign(
{ userId: user.id, email: user.email },
process.env.JWT_SECRET,
{ expiresIn: process.env.JWT_EXPIRES_IN || '24h' }
);
// Return user data (without password) and token
const { password: _, ...userWithoutPassword } = user;
res.status(201).json({
message: 'User registered successfully',
user: userWithoutPassword,
token
});
} catch (error) {
next(error);
}
}
// Login user
async login(req, res, next) {
try {
const { email, password } = req.body;
// Check if account is locked
const isLocked = await User.isAccountLocked(email);
if (isLocked) {
return res.status(423).json({
error: 'Account locked',
message: 'Your account has been locked due to multiple failed login attempts. Please wait 15 minutes or reset your password.'
});
}
// Find user by email
const user = await User.findByEmail(email);
if (!user) {
// Track failed attempt even for non-existent users
await User.trackLoginAttempt(email, false);
return res.status(401).json({
error: 'Authentication failed',
message: 'Invalid email or password'
});
}
// Verify password
const isPasswordValid = user.password ? await bcrypt.compare(password, user.password) : false;
// Track login attempt
await User.trackLoginAttempt(email, isPasswordValid);
if (!isPasswordValid) {
const updatedUser = await User.findByEmail(email);
const remainingAttempts = 3 - updatedUser.loginAttempts;
if (remainingAttempts > 0) {
return res.status(401).json({
error: 'Authentication failed',
message: `Invalid email or password. ${remainingAttempts} attempts remaining.`
});
} else {
return res.status(423).json({
error: 'Account locked',
message: 'Your account has been locked due to multiple failed login attempts. Please wait 15 minutes or reset your password.'
});
}
}
// Generate JWT token
const token = jwt.sign(
{ userId: user.id, email: user.email },
process.env.JWT_SECRET,
{ expiresIn: process.env.JWT_EXPIRES_IN || '24h' }
);
// Return user data (without password) and token
const { password: _, ...userWithoutPassword } = user;
res.status(200).json({
message: 'Login successful',
user: userWithoutPassword,
token
});
} catch (error) {
next(error);
}
}
// Request password reset
async requestPasswordReset(req, res, next) {
try {
const { email } = req.body;
// Check if user exists
const user = await User.findByEmail(email);
if (!user) {
// Don't reveal if user exists or not for security
return res.status(200).json({
message: 'If an account with this email exists, a password reset link has been sent.'
});
}
// Generate password reset token
const userWithToken = await User.generatePasswordResetToken(email);
// In a real application, you would send an email here
// For demonstration, we'll return the token in the response
// In production, this should be sent via email
res.status(200).json({
message: 'Password reset link sent to your email',
resetToken: userWithToken.passwordResetToken, // Remove this in production
expiresIn: '1 hour'
});
} catch (error) {
next(error);
}
}
// Reset password with token
async resetPassword(req, res, next) {
try {
const { email, token, newPassword } = req.body;
// Verify token
const user = await User.verifyPasswordResetToken(email, token);
if (!user) {
return res.status(400).json({
error: 'Invalid or expired token',
message: 'The password reset token is invalid or has expired'
});
}
// Hash new password
const saltRounds = parseInt(process.env.BCRYPT_ROUNDS) || 12;
const hashedPassword = await bcrypt.hash(newPassword, saltRounds);
// Reset password
const updatedUser = await User.resetPassword(email, token, hashedPassword);
Iif (!updatedUser) {
return res.status(400).json({
error: 'Password reset failed',
message: 'Unable to reset password. Please try again.'
});
}
res.status(200).json({
message: 'Password reset successfully. You can now login with your new password.'
});
} catch (error) {
next(error);
}
}
// Get user profile
async getProfile(req, res, next) {
try {
const userId = req.user.userId;
const user = await User.findById(userId);
Iif (!user) {
return res.status(404).json({
error: 'User not found',
message: 'User profile not found'
});
}
// Return user data without password
const { password, ...userWithoutPassword } = user;
res.status(200).json({
user: userWithoutPassword
});
} catch (error) {
next(error);
}
}
// Update user profile
async updateProfile(req, res, next) {
try {
const userId = req.user.userId;
const { name, email } = req.body;
// Validate input
Eif (email) {
const emailRegex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
if (!emailRegex.test(email)) {
return res.status(400).json({
error: 'Invalid email format',
message: 'Please provide a valid email address'
});
}
}
Iif (name && (name.length < 2 || name.length > 50)) {
return res.status(400).json({
error: 'Invalid name length',
message: 'Name must be between 2 and 50 characters'
});
}
// Check if email is already taken by another user
Eif (email) {
const existingUser = await User.findByEmail(email);
if (existingUser && existingUser.id !== userId) {
return res.status(409).json({
error: 'Email already exists',
message: 'This email address is already in use'
});
}
}
// Update user
const updatedUser = await User.update(userId, { name, email });
Iif (!updatedUser) {
return res.status(404).json({
error: 'User not found',
message: 'User profile not found'
});
}
// Return updated user data without password
const { password, ...userWithoutPassword } = updatedUser;
res.status(200).json({
message: 'Profile updated successfully',
user: userWithoutPassword
});
} catch (error) {
next(error);
}
}
}
module.exports = new AuthController(); |