Send week of installation and ref parameter to updater

app/dates.js

@@ -1,3 +1,7 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+* License, v. 2.0. If a copy of the MPL was not distributed with this file,
+* You can obtain one at http://mozilla.org/MPL/2.0/. */
+
 // The iso week is defined as the week number starting on January 4th indexed to the first Thursday
 var isoWeek = function () {
   var date = new Date()
@@ -30,3 +34,11 @@ exports.todayWOY = () => {
 exports.todayMonth = () => {
   return (new Date()).getMonth() + 1
 }
+
+const MILLISECONDS_IN_ONE_DAY = 60 * 60 * 24 * 1000
+
+// return YYYY-MM-DD of closest Monday in the past to current date
+exports.lastMonday = (d) => {
+  var monday = new Date(d.getTime() - ((d.getDay() - 1) * MILLISECONDS_IN_ONE_DAY))
+  return localYMD(monday)
+}

app/updater.js

@@ -18,6 +18,7 @@ const appActions = require('../js/actions/appActions')
 const Immutable = require('immutable')
 const dates = require('./dates')
 const Channel = require('./channel')
+const buildConfig = require('../js/constants/buildConfig')
 
 const fs = require('fs')
 const path = require('path')
@@ -117,12 +118,14 @@ exports.init = (platform, arch, ver, updateToPreview) => {
 // This is a privacy preserving policy. Instead of passing personally identifying
 // information, the browser will pass thefour boolean values indicating when the last
 // update check occurred.
-var paramsFromLastCheckDelta = (lastCheckYMD, lastCheckWOY, lastCheckMonth, firstCheckMade) => {
+var paramsFromLastCheckDelta = (lastCheckYMD, lastCheckWOY, lastCheckMonth, firstCheckMade, weekOfInstallation, ref) => {
   return {
     daily: !lastCheckYMD || (dates.todayYMD() > lastCheckYMD),
     weekly: !lastCheckWOY || (dates.todayWOY() !== lastCheckWOY),
     monthly: !lastCheckMonth || (dates.todayMonth() !== lastCheckMonth),
-    first: !firstCheckMade
+    first: !firstCheckMade,
+    woi: weekOfInstallation,
+    ref: ref || null
   }
 }
 
@@ -143,12 +146,18 @@ var requestVersionInfo = (done, pingOnly) => {
   const firstCheckMade = state.getIn(['updates', 'firstCheckMade'], false)
   debug(`firstCheckMade = ${firstCheckMade}`)
 
+  // The previous Monday from the installation date
+  const weekOfInstallation = state.getIn(['updates', 'weekOfInstallation'], null)
+  debug(`weekOfInstallation= ${weekOfInstallation}`)
+
   // Build query string based on the last date an update request was made
   const query = paramsFromLastCheckDelta(
     lastCheckYMD,
     lastCheckWOY,
     lastCheckMonth,
-    firstCheckMade
+    firstCheckMade,
+    weekOfInstallation,
+    buildConfig.ref || null
   )
   query.accept_preview = updateToPreviewReleases ? 'true' : 'false'
   const queryString = `${platformBaseUrl}?${querystring.stringify(query)}`

js/stores/appStore.js

@@ -265,6 +265,9 @@ const handleAppAction = (action) => {
       appState = appState.setIn(['updates', 'lastCheckWOY'], dates.todayWOY())
       appState = appState.setIn(['updates', 'lastCheckMonth'], dates.todayMonth())
       appState = appState.setIn(['updates', 'firstCheckMade'], true)
+      if (!appState.getIn(['updates', 'weekOfInstallation'])) {
+        appState = appState.setIn(['updates', 'weekOfInstallation'], dates.lastMonday(new Date()))
+      }
       break
     case appConstants.APP_SET_UPDATE_STATUS:
       if (action.status !== undefined) {

test/unit/app/browser/datesTest.js

@@ -0,0 +1,49 @@
+/* global describe, it, before, after */
+
+const assert = require('assert')
+const sinon = require('sinon')
+let dates
+
+require('../../braveUnit')
+
+describe('update date handling', function () {
+  const exampleDate = 1510708981887 // Tuesday November 14th 2017, 6:23:01 PM
+  const exampleDate2 = 1512304291746 // Monday December 04th 2017, 9:18:11 AM
+  let fakeClock
+  before(function () {
+    fakeClock = sinon.useFakeTimers(exampleDate)
+    dates = require('../../../../app/dates')
+  })
+  after(function () {
+    fakeClock.restore()
+  })
+
+  describe('todayYMD', function () {
+    it('returns YYYY-MM-DD of today', function () {
+      assert.equal(dates.todayYMD(), '2017-11-14', 'today')
+    })
+  })
+
+  describe('todayWOY', function () {
+    it('returns the ISO week number for today', function () {
+      assert.equal(dates.todayWOY(), 314, 'ISO week number')
+    })
+  })
+
+  describe('todayMonth', function () {
+    it('returns the month of today as a number', function () {
+      assert.equal(dates.todayMonth(), 11, 'Month of today')
+    })
+  })
+
+  describe('lastMonday', function () {
+    it('returns YYYY-MM-DD of closest Monday in the past to current date', function () {
+      const d = new Date(exampleDate)
+      assert.equal(dates.lastMonday(d), '2017-11-13', 'previous Monday')
+    })
+    it('returns YYYY-MM-DD of today if today is monday', function () {
+      const d = new Date(exampleDate2)
+      assert.equal(dates.lastMonday(d), '2017-12-04', 'today is Monday')
+    })
+  })
+})

tools/buildPackage.js

@@ -15,10 +15,12 @@ const isLinux = process.platform === 'linux'
 
 var env = {
   NODE_ENV: 'production',
-  CHANNEL: process.env.CHANNEL
+  CHANNEL: process.env.CHANNEL,
+  REF: process.env.REF || null
 }
 
 const channel = env.CHANNEL
+const ref = env.REF
 
 var channels = { nightly: true, developer: true, beta: true, dev: true }
 if (!channels[channel]) {
@@ -75,7 +77,8 @@ config.writeBuildConfig(
   {
     channel: channel,
     BROWSER_LAPTOP_REV: require('git-rev-sync').long(),
-    nodeEnv: env.NODE_ENV
+    nodeEnv: env.NODE_ENV,
+    ref: ref || null
   },
   'buildConfig.js'
 )