feat: read a new (temporary) token type, OBSUserId from Authorization header

app.js

@@ -5,6 +5,7 @@ const session = require('express-session');
 const cors = require('cors');
 const errorhandler = require('errorhandler');
 const mongoose = require('mongoose');
+const auth = require('./routes/auth');
 
 const isProduction = process.env.NODE_ENV === 'production';
 
@@ -12,6 +13,7 @@ const isProduction = process.env.NODE_ENV === 'production';
 const app = express();
 
 app.use(cors());
+app.use(auth.getUserIdMiddleware);
 
 // Normal express config defaults
 app.use(require('morgan')('dev'));

routes/auth.js

@@ -2,30 +2,51 @@ const jwt = require('express-jwt');
 const secret = require('../config').secret;
 
 function getTokenFromHeader(req) {
-  if (
-    (req.headers.authorization && req.headers.authorization.split(' ')[0] === 'Token') ||
-    (req.headers.authorization && req.headers.authorization.split(' ')[0] === 'Bearer')
-  ) {
-    return req.headers.authorization.split(' ')[1];
+  const [tokenType, token] = req.headers.authorization?.split(' ') || [];
+
+  if (tokenType === 'Token' || tokenType === 'Bearer') {
+    return token;
   }
 
   return null;
 }
 
-const auth = {
-  required: jwt({
-    secret: secret,
-    userProperty: 'payload',
-    getToken: getTokenFromHeader,
-    algorithms: ['HS256'],
-  }),
-  optional: jwt({
+const jwtOptional = jwt({
   secret: secret,
   userProperty: 'payload',
   credentialsRequired: false,
   getToken: getTokenFromHeader,
   algorithms: ['HS256'],
-  }),
-};
+});
 
-module.exports = auth;
+function getUserIdMiddleware(req, res, next) {
+  try {
+    const [tokenType, token] = req.headers.authorization.split(' ') || [];
+
+    if (tokenType === 'Token' || tokenType === 'Bearer') {
+      return jwtOptional(req, res, next);
+    } else if (tokenType === 'OBSUserId') {
+      req.payload = { id: token.trim() };
+      next();
+    } else {
+      req.payload = null;
+      next();
+    }
+  } catch (err) {
+    next(err);
+  }
+}
+
+module.exports = {
+  required(req, res, next) {
+    if (!req.payload) {
+      return res.sendStatus(403);
+    } else {
+      return next();
+    }
+  },
+  optional(req, res, next) {
+    return next();
+  },
+  getUserIdMiddleware,
+};