UI (#15)

Adding new Admin UI. Updating Fredy to V3.0.0 as it has been a large rewrite. Thanks for all contributions and help on the way!

lib/api/security.js

@@ -0,0 +1,53 @@
+const userStorage = require('../services/storage/userStorage');
+const cookieSession = require('cookie-session');
+const { nanoid } = require('nanoid');
+
+const unauthorized = (res) => {
+  return res.send(401);
+};
+
+const isUnauthorized = (req) => {
+  return req.session.currentUser == null;
+};
+
+const isAdmin = (req) => {
+  if (!isUnauthorized(req)) {
+    const user = userStorage.getUser(req.session.currentUser);
+    return user != null && user.isAdmin;
+  }
+  return false;
+};
+
+const authInterceptor = () => {
+  return (req, res, next) => {
+    if (isUnauthorized(req)) {
+      return unauthorized(res);
+    } else {
+      next();
+    }
+  };
+};
+
+const adminInterceptor = () => {
+  return (req, res, next) => {
+    if (!isAdmin(req)) {
+      return unauthorized(res);
+    } else {
+      next();
+    }
+  };
+};
+
+exports.cookieSession = (userId) => {
+  return cookieSession({
+    name: 'fredy-admin-session',
+    keys: ['fredy', 'super', 'fancy', 'key', nanoid()],
+    userId,
+    maxAge: 24 * 60 * 60 * 1000, // 24 hours
+  });
+};
+
+exports.adminInterceptor = adminInterceptor;
+exports.authInterceptor = authInterceptor;
+exports.isUnauthorized = isUnauthorized;
+exports.isAdmin = isAdmin;