add methods for password hashing in User model

Signed-off-by: BinotaLIU <me@binota.org>

Author: binotaliu

lib/models/user.js

@@ -1,7 +1,7 @@
 'use strict'
 // external modules
 var Sequelize = require('sequelize')
-var scrypt = require('scrypt')
+var Scrypt = require('scrypt-kdf')
 
 // core
 var logger = require('../logger')
@@ -41,20 +41,20 @@ module.exports = function (sequelize, DataTypes) {
       }
     },
     password: {
-      type: Sequelize.TEXT,
-      set: function (value) {
-        var hash = scrypt.kdfSync(value, scrypt.paramsSync(0.1)).toString('hex')
-        this.setDataValue('password', hash)
-      }
+      type: Sequelize.TEXT
     }
   })
 
-  User.prototype.verifyPassword = function (attempt) {
-    if (scrypt.verifyKdfSync(Buffer.from(this.password, 'hex'), attempt)) {
+  User.prototype.hashPassword = async function (plain) {
+    return Scrypt.kdf(plain, await Scrypt.pickParams(0.1)).toString('hex')
+  }
+
+  User.prototype.verifyPassword = async function (attempt) {
+    if (await Scrypt.verifyKdf(Buffer.from(this.password, 'hex'), attempt)) {
       return this
-    } else {
-      return false
     }
+
+    return false
   }
 
   User.associate = function (models) {