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const { Strategy: PassportLocalStrategy } = require('passport-local');
const User = require('../models/User');
const { loginSchema, errorsToString } = require('./validators');
const logger = require('../utils/logger');
async function validateLoginRequest(req) {
const { error } = loginSchema.safeParse(req.body);
return error ? errorsToString(error.errors) : null;
}
async function findUserByEmail(email) {
return User.findOne({ email: email.trim() });
}
async function comparePassword(user, password) {
return new Promise((resolve, reject) => {
user.comparePassword(password, function (err, isMatch) {
if (err) {
return reject(err);
}
resolve(isMatch);
});
});
}
async function passportLogin(req, email, password, done) {
try {
const validationError = await validateLoginRequest(req);
if (validationError) {
logError('Passport Local Strategy - Validation Error', { reqBody: req.body });
logger.error(`[Login] [Login failed] [Username: ${email}] [Request-IP: ${req.ip}]`);
return done(null, false, { message: validationError });
}
const user = await findUserByEmail(email);
if (!user) {
logError('Passport Local Strategy - User Not Found', { email });
logger.error(`[Login] [Login failed] [Username: ${email}] [Request-IP: ${req.ip}]`);
return done(null, false, { message: 'Email does not exist.' });
}
const isMatch = await comparePassword(user, password);
if (!isMatch) {
logError('Passport Local Strategy - Password does not match', { isMatch });
logger.error(`[Login] [Login failed] [Username: ${email}] [Request-IP: ${req.ip}]`);
return done(null, false, { message: 'Incorrect password.' });
}
logger.info(`[Login] [Login successful] [Username: ${email}] [Request-IP: ${req.ip}]`);
return done(null, user);
} catch (err) {
return done(err);
}
}
function logError(title, parameters) {
const entries = Object.entries(parameters).map(([name, value]) => ({ name, value }));
logger.error(title, { parameters: entries });
}
module.exports = () =>
new PassportLocalStrategy(
{
usernameField: 'email',
passwordField: 'password',
session: false,
passReqToCallback: true,
},
passportLogin,
);
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