fix: #546 issue with closing registration (#547)

* fix: #546 issue with closing registration

* refactor: change casing of controller files for consistency

* fix: ensure registrationEnabled is sending a boolean value

* refactor: modifications to openId code

api/server/controllers/auth/LoginController.js

@@ -0,0 +1,39 @@
+const User = require('../../../models/User');
+
+const loginController = async (req, res) => {
+  try {
+    const user = await User.findById(
+      req.user._id
+    );
+
+    // If user doesn't exist, return error
+    if (!user) { // typeof user !== User) { // this doesn't seem to resolve the User type ??
+      return res.status(400).json({ message: 'Invalid credentials' });
+    }
+
+    const token = req.user.generateToken();
+    const expires = eval(process.env.SESSION_EXPIRY);
+    
+    // Add token to cookie
+    res.cookie(
+      'token',
+      token,
+      {
+        expires: new Date(Date.now() + expires),
+        httpOnly: false,
+        secure: process.env.NODE_ENV === 'production'
+      }
+    );
+
+    return res.status(200).send({ token, user });
+  } catch (err) {
+    console.log(err);
+  }
+
+  // Generic error messages are safer
+  return res.status(500).json({ message: 'Something went wrong' });
+};
+
+module.exports = {
+  loginController
+};