Using `passport.js` for login system.

1 files changed, 33 insertions, 0 deletions

diff --git a/config/passport.js b/config/passport.js
new file mode 100644
index 0000000..c4368cb
--- /dev/null
+++ b/config/passport.js
@@ -0,0 +1,33 @@
+const passport = require('passport');
+const LocalStrategy = require('passport-local').Strategy;
+const bcrypt = require('bcryptjs');
+
+const User = require('../models/user');
+
+const strategyCallback = (email, password, done) => {
+  // Try to find user
+  User.findOne({email}, (err, user) => {
+    // Database error
+    if (err)
+      return done(err);
+
+    // No user found
+    if (!user)
+      return done(null, false);
+
+    // Wrong password
+    if (!bcrypt.compareSync(password, user.password))
+      return done(null, false);
+
+    // Successful login
+    return done(null, user);
+  })
+};
+
+passport.use(new LocalStrategy({usernameField: 'email'}, strategyCallback));
+
+passport.serializeUser((user, done) => done(null, user._id));
+
+passport.deserializeUser((id, done) => {
+  User.findById(id, (err, user) => done(err, user));
+});