chore(server): Move api-server in to it's own DIR

api-server/server/middlewares/add-return-to.js

@@ -0,0 +1,43 @@
+const pathsOfNoReturn = [
+  'link',
+  'auth',
+  'login',
+  'logout',
+  'signin',
+  'signup',
+  'fonts',
+  'favicon',
+  'js',
+  'css'
+];
+
+const pathsWhiteList = [
+  'news',
+  'challenges',
+  'map',
+  'news',
+  'commit'
+];
+
+const pathsOfNoReturnRegex = new RegExp(pathsOfNoReturn.join('|'), 'i');
+const whiteListRegex = new RegExp(pathsWhiteList.join('|'), 'i');
+
+export default function addReturnToUrl() {
+  return function(req, res, next) {
+    // Remember original destination before login.
+    var path = req.path.split('/')[1];
+
+    if (
+      req.method !== 'GET' ||
+      pathsOfNoReturnRegex.test(path) ||
+      !whiteListRegex.test(path) ||
+      (/hot/i).test(req.path)
+    ) {
+      return next();
+    }
+    req.session.returnTo = req.originalUrl.includes('/map') ?
+      '/' :
+      req.originalUrl;
+    return next();
+  };
+}