text: /**
   * Copyright 2019, the AMP HTML authors
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *    http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  'use strict';
  
  const session = require('express-session');
  
  exports.installRootAuthentications = root => {
    root.use(session({
      secret: 'keyboard cat',
      resave: false,
      saveUninitialized: true,
      cookie: {
        maxAge: 7 * 24 * 60 * 60 * 1000, // 1 week
      },
    }));
  };
  
  exports.installRouteAuthentications = route => {
    route.use((request, response, next) => {
      if (request.headers.authorization) {
        const user = Buffer.from(
            request.headers.authorization.substring(6), 'base64')
            .toString()
            .slice(0, -1);
        request.session.passport = {user};
        return next();
      }
      request.session.redirectTo = request.originalUrl;
      response.redirect('/login');
    });
  };
  