passport tdd blog passport.js

passport.js

var LocalStrategy = require('passport-local').Strategy;
var User = require('../app/models/user');

module.exports = function (passport) {
  passport.serializeUser(function (user, done) {
    done(null, user.id);
  });

  passport.deserializeUser(function (id, done) {
    User.findById(id, function (err, user) {
      done(err, user);
    });
  });

  passport.use('local-signup', new LocalStrategy({
      usernameField: 'username',
      passwordField: 'password',
      passReqToCallback: true
    },
    function (req, username, password, done) {
      process.nextTick(function () {
        if (!req.user) {
          User.findOne({'username': username}, function (err, user) {
            if (err) return done(err);

            if (user) return done(null, {error: 'That username is already taken.'});
            
            var newUser = new User()

            newUser.username = username;
            newUser.password = newUser.generateHash(password);

            newUser.save(function (err) {
              if (err) return done(null, {error: err.message});

              return done(null, newUser);
            });
          });
        } else {
          return done(null, req.user);
        }
      });
    }));

  passport.use('local-login', new LocalStrategy({
      usernameField: 'username',
      passwordField: 'password',
      passReqToCallback: true
    },
    function (req, username, password, done) {
      if (username) {
        username = username.toLowerCase();
      }

      process.nextTick(function () {
        User.findOne({'username': username}, function (err, user) {
          if (err) return done(err);
          
          if (!user)
            return done(null, {error: 'No user found.'});
          
          if (!user.validPassword(password)) {
            return done(null, {error: 'Wrong password.'});
          }
          return done(null, user);
        });
      });
    }));
};