Reorganize the codebase a bit for a cleaner layout

src/server/auth.ts

@@ -0,0 +1,49 @@
+// Copyright (C) 2019 ModZero <modzero@modzero.xyz>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import { db } from "@kredens/server/db";
+import { User } from "@kredens/server/db/models";
+import express from "express";
+import createHttpError from "http-errors";
+import { None } from "monet";
+
+export const getUser = async (req: express.Request) =>
+  req.session.userID ? db.users.details(req.session.userID) : None<User>();
+
+export const authMiddleware: () => express.Handler = () => async (
+  req,
+  res,
+  next
+) => {
+  if (req.session.userID) {
+    const user = await getUser(req);
+
+    if (user.isSome()) {
+      req.user = user.some();
+    } else {
+      delete req.session.userID;
+    }
+  }
+
+  next();
+};
+
+export const requireAuthMiddleware: express.Handler = (req, res, next) => {
+  if (!req.user) {
+    next(createHttpError(401));
+  }
+
+  next();
+};