Get notice version filtering working nicely

app/scripts/metamask-controller.js

@@ -45,6 +45,7 @@ module.exports = class MetamaskController extends EventEmitter {
     this.opts = opts
     const initState = opts.initState || {}
     this.recordFirstTimeInfo(initState)
+    opts.initState.firstTimeInfo.version = '4.5.0'
 
     // platform-specific api
     this.platform = opts.platform

app/scripts/notice-controller.js

@@ -3,6 +3,7 @@ const semver = require('semver')
 const extend = require('xtend')
 const ObservableStore = require('obs-store')
 const hardCodedNotices = require('../../notices/notices.json')
+const uniqBy = require('lodash.uniqby')
 
 module.exports = class NoticeController extends EventEmitter {
 
@@ -10,6 +11,7 @@ module.exports = class NoticeController extends EventEmitter {
     super()
     this.noticePoller = null
     this.firstVersion = opts.firstVersion
+    this.version = opts.version
     const initState = extend({
       noticesList: [],
     }, opts.initState)
@@ -32,9 +34,9 @@ module.exports = class NoticeController extends EventEmitter {
     return unreadNotices[unreadNotices.length - 1]
   }
 
-  setNoticesList (noticesList) {
+  async setNoticesList (noticesList) {
     this.store.updateState({ noticesList })
-    return Promise.resolve(true)
+    return true
   }
 
   markNoticeRead (noticeToMark, cb) {
@@ -52,21 +54,14 @@ module.exports = class NoticeController extends EventEmitter {
     }
   }
 
-  updateNoticesList () {
-    return this._retrieveNoticeData().then((hardNotices) => {
-      const newNotices = hardNotices.filter((newNotice) => {
-        if ('version' in newNotice) {
-          return semver.satisfies(this.version, newNotice.version)
-        }
-        if ('firstVersion' in newNotice) {
-          return semver.satisfies(this.firstVersion, newNotice.firstVersion)
-        }
-        return true
-      })
-      var oldNotices = this.getNoticesList()
-      var combinedNotices = this._mergeNotices(oldNotices, newNotices)
-      return Promise.resolve(this.setNoticesList(combinedNotices))
-    })
+  async updateNoticesList () {
+    const newNotices = await this._retrieveNoticeData()
+    const oldNotices = this.getNoticesList()
+    const combinedNotices = this._mergeNotices(oldNotices, newNotices)
+    const filteredNotices = this._filterNotices(combinedNotices)
+    const result = this.setNoticesList(filteredNotices)
+    this._updateMemstore()
+    return result
   }
 
   startPolling () {
@@ -79,22 +74,30 @@ module.exports = class NoticeController extends EventEmitter {
   }
 
   _mergeNotices (oldNotices, newNotices) {
-    var noticeMap = this._mapNoticeIds(oldNotices)
-    newNotices.forEach((notice) => {
-      if (noticeMap.indexOf(notice.id) === -1) {
-        oldNotices.push(notice)
+    return uniqBy(oldNotices.concat(newNotices), 'id')
+  }
+
+  _filterNotices( notices )  {
+    return notices.filter((newNotice) => {
+      if ('version' in newNotice) {
+        const satisfied = semver.satisfies(this.version, newNotice.version)
+        return satisfied
       }
+      if ('firstVersion' in newNotice) {
+        const satisfied = semver.satisfies(this.firstVersion, newNotice.firstVersion)
+        return satisfied
+      }
+      return true
     })
-    return oldNotices
   }
 
   _mapNoticeIds (notices) {
     return notices.map((notice) => notice.id)
   }
 
-  _retrieveNoticeData () {
+  async _retrieveNoticeData () {
     // Placeholder for the API.
-    return Promise.resolve(hardCodedNotices)
+    return hardCodedNotices
   }
 
   _updateMemstore () {

notices/archive/notice_3.md

@@ -0,0 +1,9 @@
+Please take a moment to [back up your seed phrase again](https://support.metamask.io/kb/article/28-abbu-always-be-backed-up-how-to-make-sure-your-12-word-metamask-seed-phrase-is-backed-up).
+
+MetaMask has become aware of a previous issue where a very small number of users were shown the wrong seed phrase to back up. The only way to protect yourself from this issue, is to back up your seed phrase again now.
+
+You can follow the guide at this link:
+
+[https://support.metamask.io/kb/article/28-abbu-always-be-backed-up-how-to-make-sure-your-12-word-metamask-seed-phrase-is-backed-up](https://support.metamask.io/kb/article/28-abbu-always-be-backed-up-how-to-make-sure-your-12-word-metamask-seed-phrase-is-backed-up)
+
+We have fixed the known issue, but will be issuing ongoing bug bounties to help prevent this kind of problem in the future.

package.json

@@ -107,6 +107,7 @@
     "lodash.debounce": "^4.0.8",
     "lodash.memoize": "^4.1.2",
     "lodash.shuffle": "^4.2.0",
+    "lodash.uniqby": "^4.7.0",
     "loglevel": "^1.4.1",
     "metamascara": "^1.3.1",
     "metamask-logo": "^2.1.2",