From 79a99ac93bf1655b431471cf084bb718063c9928 Mon Sep 17 00:00:00 2001
From: Kevin Serrano <kevgagser@gmail.com>
Date: Tue, 11 Oct 2016 14:33:30 -0700
Subject: [PATCH] Move tos hash comparison logic from background to mm
 controller.

---
 app/scripts/background.js          | 18 +-----------------
 app/scripts/metamask-controller.js | 25 +++++++++++++++----------
 2 files changed, 16 insertions(+), 27 deletions(-)

diff --git a/app/scripts/background.js b/app/scripts/background.js
index adde3a87f..652acc113 100644
--- a/app/scripts/background.js
+++ b/app/scripts/background.js
@@ -8,10 +8,6 @@ const messageManager = require('./lib/message-manager')
 const setupMultiplex = require('./lib/stream-utils.js').setupMultiplex
 const MetamaskController = require('./metamask-controller')
 const extension = require('./lib/extension')
-const fs = require('fs')
-const path = require('path')
-const disclaimer = fs.readFileSync(path.join(__dirname, '..', '..', 'USER_AGREEMENT.md')).toString()
-const stringHash = require('string-hash')
 
 const STORAGE_KEY = 'metamask-config'
 var popupIsOpen = false
@@ -33,20 +29,8 @@ function triggerUi () {
 // On first install, open a window to MetaMask website to how-it-works.
 
 extension.runtime.onInstalled.addListener(function (details) {
-  const newTOSHash = stringHash(disclaimer)
   if (details.reason === 'install') {
-    controller.setTOSHash(newTOSHash, () => {
-      extension.tabs.create({url: 'https://metamask.io/#how-it-works'})
-    })
-  } else if (details.reason === 'update') {
-    controller.checkTOSChange(newTOSHash, (hasChanged) => {
-      if (hasChanged) {
-        controller.resetDisclaimer()
-        controller.setTOSHash(newTOSHash, () => {
-          extension.tabs.create({url: 'https://metamask.io/terms.html'})
-        })
-      }
-    })
+    extension.tabs.create({url: 'https://metamask.io/#how-it-works'})
   }
 })
 
diff --git a/app/scripts/metamask-controller.js b/app/scripts/metamask-controller.js
index c763d571c..29c62a85d 100644
--- a/app/scripts/metamask-controller.js
+++ b/app/scripts/metamask-controller.js
@@ -7,6 +7,7 @@ const HostStore = require('./lib/remote-store.js').HostStore
 const Web3 = require('web3')
 const ConfigManager = require('./lib/config-manager')
 const extension = require('./lib/extension')
+const newTOSHash = global.TOS_HASH
 
 module.exports = class MetamaskController {
 
@@ -22,12 +23,15 @@ module.exports = class MetamaskController {
     this.idStore.setStore(this.ethStore)
     this.messageManager = messageManager
     this.publicConfigStore = this.initPublicConfigStore()
+
     var currentFiat = this.configManager.getCurrentFiat() || 'USD'
     this.configManager.setCurrentFiat(currentFiat)
     this.configManager.updateConversionRate()
-    var currentHash = this.configManager.getTOSHash() || 0
-    this.configManager.setTOSHash(currentHash)
+
+    this.checkTOSChange()
+
     this.scheduleConversionInterval()
+
   }
 
   getState () {
@@ -266,22 +270,23 @@ module.exports = class MetamaskController {
   // config
   //
 
-  setTOSHash (hash, cb) {
+  setTOSHash (hash) {
     try {
       this.configManager.setTOSHash(hash)
-      cb(this.configManager.getTOSHash())
     } catch (e) {
-      cb(null, e)
+      console.error('Error in setting terms of service hash.')
     }
   }
 
-  checkTOSChange (newHash, cb) {
+  checkTOSChange () {
     try {
-      var currentHash = this.configManager.getTOSHash()
-      var change = !(currentHash === newHash)
-      cb(change)
+      const storedHash = this.configManager.getTOSHash() || 0
+      if (storedHash !== global.newTOSHash) {
+        this.resetDisclaimer()
+        this.setTOSHash(global.newTOSHash)
+      }
     } catch (e) {
-      cb(null, e)
+      console.error("Error in checking TOS change.")
     }
 
   }