fix: naming and redundancy issues

lib/new-admin/admin-server.js

@@ -11,19 +11,15 @@ const cookieParser = require('cookie-parser')
 const bodyParser = require('body-parser')
 const { ApolloServer, AuthenticationError } = require('apollo-server-express')
 const _ = require('lodash/fp')
-const session = require('express-session')
-const pgSession = require('connect-pg-simple')(session)
-const hkdf = require('futoin-hkdf')
 const pify = require('pify')
 
 const login = require('./services/login')
 const register = require('./routes/authentication')
 
 const options = require('../options')
-const db = require('../db')
 const users = require('../users')
-const mnemonicHelpers = require('../mnemonic-helpers')
 
+const session = require('./middlewares/session')
 const authRouter = require('./routes/auth')
 const { AuthDirective } = require('./graphql/directives')
 const { typeDefs, resolvers } = require('./graphql/schema')
@@ -46,33 +42,7 @@ app.use(cookieParser())
 app.use(bodyParser.json())
 app.use(bodyParser.urlencoded({ extended: true })) // support encoded bodies
 app.use(express.static(path.resolve(__dirname, '..', '..', 'public')))
-
-const getSecret = () => {
-  const mnemonic = fs.readFileSync(options.mnemonicPath, 'utf8')
-  return hkdf(
-    mnemonicHelpers.toEntropyBuffer(mnemonic),
-    16,
-    { salt: 'lamassu-server-salt', info: 'operator-id' }
-  ).toString('hex')
-}
-
-app.use('*', session({
-  store: new pgSession({
-    pgPromise: db,
-    tableName: 'user_sessions'
-  }),
-  name: 'lid',
-  secret: getSecret(),
-  resave: false,
-  saveUninitialized: false,
-  cookie: {
-    httpOnly: true,
-    secure: true,
-    domain: hostname,
-    sameSite: true,
-    maxAge: 60 * 10 * 1000 // 10 minutes
-  }
-}))
+app.use(session)
 
 const apolloServer = new ApolloServer({
   typeDefs,