Login system: Email confirmation

app/confirm.vue

@@ -0,0 +1,42 @@
+<script>
+const api = require('./api')
+const { jwt } = require('./security')
+export default {
+  data() {
+    return {
+      model: {
+        confirmKey: null
+      }
+    }
+  },
+  methods: {
+    async submit() {
+      const result = await api.post('confirm', {
+        email: this.$route.params.email,
+        ...this.model
+      })
+      console.log(result)
+      if (result.error) {
+        this.error = result.error
+      } else {
+        jwt.token = result.token
+        this.$router.push('/dashboard')
+      }
+    }
+  }
+}
+</script>
+<template>
+  <div>
+    <h1>Confirm your email address</h1>
+    <p>
+      We emailed you a confirmation code. Please enter it here to confirm your email address.
+    </p>
+    <p>
+      <em>I can almost guarantee this email will be in your spam folder, but don't worry. Your email address is only used for signing in, and resetting your password.</em>
+    </p>
+    <v-text-field v-model="model.confirmKey" label="Enter your confirmation key" placeholder="###-###" />
+    <v-btn @click="submit">Confirm Email</v-btn>
+    <v-alert v-model="error" type="error">{{error}}</v-alert>
+  </div>
+</template>

app/main.vue

@@ -1,15 +1,18 @@
 <script>
 const { jwt } = require('./security')
+const gravatar = require('gravatar')
 import VueRouter from 'vue-router'
 import Home from './home.vue'
 import Signup from './signup.vue'
 import Signin from './signin.vue'
+import Confirm from './confirm.vue'
 
 const router = new VueRouter({
   routes: [
     { path: '', component: Home },
     { path: '/signup', component: Signup },
-    { path: '/signin', component: Signin }
+    { path: '/signin', component: Signin },
+    { path: '/confirm/:email', component: Confirm }
   ]
 })
 
@@ -27,6 +30,16 @@ export default {
       jwt
     }
   },
+  computed: {
+    gravatar() {
+      return jwt.token && gravatar.url(jwt.identity.email, {
+        s: 24
+      })
+    },
+    name() {
+      return jwt.token && jwt.identity.name
+    }
+  },
   methods: {
     signout() {
       jwt.token = null
@@ -44,6 +57,13 @@ export default {
           <v-toolbar-title>RSS Archive</v-toolbar-title>
         </v-toolbar> -->
         <v-list>
+          <v-list-tile v-if="jwt.token">
+            <v-list-tile-action>
+              <img :src="gravatar" />
+            </v-list-tile-action>
+            <v-list-tile-title>{{name}}</v-list-tile-title>
+          </v-list-tile>
+
           <v-list-tile v-if="!jwt.token" to="/signin">
             <v-list-tile-action>
               <v-icon>account_circle</v-icon>

app/signup.vue

@@ -62,11 +62,10 @@ export default {
         if (result.error) {
           throw new Error(result.error)
         }
-        jwt.token = result.token
-        this.$router.push('/dashboard')
+        this.$router.push('/confirm/' + this.model.email)
       } catch (err) {
         this.saving = false
-        this.error = err.message || err
+        this.error = err.stack || err
       }
     }
   }

package.json

@@ -45,10 +45,12 @@
     "express": "^4.16.4",
     "express-ws": "^4.0.0",
     "file-loader": "^3.0.1",
+    "gravatar": "^1.8.0",
     "jsonwebtoken": "^8.5.1",
     "level": "^5.0.1",
     "material-icons": "^0.3.0",
     "morgan": "^1.9.1",
+    "sendmail": "^1.6.1",
     "stylus": "^0.54.5",
     "stylus-loader": "^3.0.2",
     "text-loader": "^0.0.1",

server/mail.js

@@ -0,0 +1,16 @@
+const sendmailCB = require('sendmail')({
+  silent: false
+})
+
+const sendmail = async (mail) => new Promise((resolve, reject) => {
+  sendmailCB(mail, (err, response) => err ? reject(err) : resolve(response))
+})
+
+module.exports = {sendmail}
+// await sendmail({
+//   from: 'no-reply@rssunlimited.com',
+//   to: 'alancnet@gmail.com',
+//   subject: 'Testing again',
+//   html: 'If you can see this, this worked!',
+//   text: 'If you can see this, this worked!'
+// })

server/security.js

@@ -2,8 +2,14 @@ const crypto = require('crypto')
 const uuid = require('uuid/v4')
 const jwt = require('jsonwebtoken')
 const SECRET = 'scale action palace measure'
+
 const genSeed = uuid
 
+const genKey = ({format = '###-###', alphabet = 'ABCDEFGHJKMNPQRSTUVWXYZ23456789'} = {}) => {
+  const c = () => alphabet[Math.floor(Math.random() * alphabet.length)]
+  return format.replace(/#/g, c)
+}
+
 const hashPassword = ({password, seed, email}) => {
   if (!password) throw new Error('Missing password')
   if (!seed) throw new Error('Missing seed')
@@ -16,7 +22,10 @@ const hashPassword = ({password, seed, email}) => {
   return result
 }
 
-const createToken = user => jwt.sign(user, SECRET, { expiresIn: '2 days' })
+const createToken = user => jwt.sign({
+  email: user.email,
+  name: user.name,
+}, SECRET, { expiresIn: '2 days' })
 
 const validate = token => jwt.verify(token, SECRET, { complete: true })
 
@@ -35,4 +44,4 @@ const authorize = (...claims) => (req, res, next) => {
   }
 }
 
-module.exports = { hashPassword, genSeed, createToken, validate, authorize }
+module.exports = { hashPassword, genSeed, createToken, validate, authorize, genKey }

server/server.js

@@ -1,7 +1,8 @@
 const app = require('./app')
 const db = require('./db')
 const log = require('./log')
-const { hashPassword, genSeed, authorize, createToken } = require('./security')
+const { hashPassword, genSeed, genKey, authorize, createToken } = require('./security')
+const { sendmail } = require('./mail')
 
 app.post('/signup', async (req, res) => {
   if (!req.body.name) throw new Error('Missing name')
@@ -9,19 +10,30 @@ app.post('/signup', async (req, res) => {
   if (!req.body.email) throw new Error('Missing email')
   const email = req.body.email.toLowerCase().trim()
   const existing = await db.users.get(email)
-  if (existing) throw new Error('User already exists.')
+  if (existing && existing.confirmed) throw new Error('User already exists.')
   const seed = genSeed()
   const password = hashPassword({password: req.body.password, email, seed})
-
+  const confirmKey = genKey()
   const user = {
     name: req.body.name,
     email: req.body.email,
     password,
     seed,
     ip: req.ip,
+    confirmed: false,
+    confirmKey,
+    keyCreated: Date.now(),
+    failCount: 0,
     created: Date.now()
   }
 
+  const mailResult = await sendmail({
+    to: `${user.name} <${user.email}>`,
+    from: `RSS Unlimited <noreply@rssunlimited.com>`,
+    subject: `Please verify your email address.`,
+    text: `Enter the following code to confirm your email address on RSSUnlimited.com:\n\n${confirmKey}`
+  })
+
   await db.users.put(email, user)
 
   log({
@@ -29,9 +41,25 @@ app.post('/signup', async (req, res) => {
     user
   })
 
-  res.status(200).send({
-    token: createToken(user)
-  })
+  res.status(200).send({})
+})
+
+app.post('/confirm', async (req, res) => {
+  if (!req.body.confirmKey) throw new Error('Missing confirmKey')
+  if (!req.body.email) throw new Error('Missing email')
+  const email = req.body.email.toLowerCase().trim()
+  const user = await db.users.get(email)
+  if (user && !user.confirmed && user.confirmKey.toUpperCase() === req.body.confirmKey.toUpperCase().trim()) {
+    user.confirmed = true
+    db.users.put(email, user)
+    res.status(200).send({
+      token: createToken(user)
+    })
+  } else {
+    res.status(400).send({
+      error: 'Something went wrong :('
+    })
+  }
 })
 
 app.post('/login', async (req, res) => {

yarn.lock

@@ -350,6 +350,11 @@ acorn@^6.0.5:
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-6.2.0.tgz#67f0da2fc339d6cfb5d6fb244fd449f33cd8bbe3"
   integrity sha512-8oe72N3WPMjA+2zVG71Ia0nXZ8DpQH+QyyHO+p06jT8eg8FGG3FbcUIi8KziHlAfheJQZeoqbvq1mQSQHXKYLw==
 
+addressparser@1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/addressparser/-/addressparser-1.0.1.tgz#47afbe1a2a9262191db6838e4fd1d39b40821746"
+  integrity sha1-R6++GiqSYhkdtoOOT9HTm0CCF0Y=
+
 ajv-errors@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/ajv-errors/-/ajv-errors-1.0.1.tgz#f35986aceb91afadec4102fbd85014950cefa64d"
@@ -686,6 +691,11 @@ bluebird@^3.1.1, bluebird@^3.5.5:
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.5.tgz#a8d0afd73251effbbd5fe384a77d73003c17a71f"
   integrity sha512-5am6HnnfN+urzt4yfg7IgTbotDjIT/u8AJpEt0sIU9FtXfVeezXAPKswrG+xKUCOYAINpSdgZVDU6QFh+cuH3w==
 
+blueimp-md5@^2.3.0:
+  version "2.10.0"
+  resolved "https://registry.yarnpkg.com/blueimp-md5/-/blueimp-md5-2.10.0.tgz#02f0843921f90dca14f5b8920a38593201d6964d"
+  integrity sha512-EkNUOi7tpV68TqjpiUz9D9NcT8um2+qtgntmMbi5UKssVX2m/2PLqotcric0RE63pB3HPN/fjf3cKHN2ufGSUQ==
+
 bmp-js@0.0.3:
   version "0.0.3"
   resolved "https://registry.yarnpkg.com/bmp-js/-/bmp-js-0.0.3.tgz#64113e9c7cf1202b376ed607bf30626ebe57b18a"
@@ -866,6 +876,18 @@ buffer@^4.3.0:
     ieee754 "^1.1.4"
     isarray "^1.0.0"
 
+buildmail@3.10.0:
+  version "3.10.0"
+  resolved "https://registry.yarnpkg.com/buildmail/-/buildmail-3.10.0.tgz#c6826d716e7945bb6f6b1434b53985e029a03159"
+  integrity sha1-xoJtcW55RbtvaxQ0tTmF4CmgMVk=
+  dependencies:
+    addressparser "1.0.1"
+    libbase64 "0.1.0"
+    libmime "2.1.0"
+    libqp "1.1.0"
+    nodemailer-fetch "1.6.0"
+    nodemailer-shared "1.1.0"
+
 builtin-status-codes@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/builtin-status-codes/-/builtin-status-codes-3.0.0.tgz#85982878e21b98e1c66425e03d0174788f569ee8"
@@ -934,6 +956,11 @@ camelcase@^3.0.0:
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-3.0.0.tgz#32fc4b9fcdaf845fcdf7e73bb97cac2261f0ab0a"
   integrity sha1-MvxLn82vhF/N9+c7uXysImHwqwo=
 
+camelcase@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-4.1.0.tgz#d545635be1e33c542649c69173e5de6acfae34dd"
+  integrity sha1-1UVjW+HjPFQmScaRc+Xeas+uNN0=
+
 camelcase@^5.0.0, camelcase@^5.2.0:
   version "5.3.1"
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-5.3.1.tgz#e3c9b31569e106811df242f715725a1f4c494320"
@@ -1293,6 +1320,15 @@ cross-spawn@6.0.5, cross-spawn@^6.0.0, cross-spawn@^6.0.5:
     shebang-command "^1.2.0"
     which "^1.2.9"
 
+cross-spawn@^5.0.1:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-5.1.0.tgz#e8bd0efee58fcff6f8f94510a0a554bbfa235449"
+  integrity sha1-6L0O/uWPz/b4+UUQoKVUu/ojVEk=
+  dependencies:
+    lru-cache "^4.0.1"
+    shebang-command "^1.2.0"
+    which "^1.2.9"
+
 crypto-browserify@^3.11.0:
   version "3.12.0"
   resolved "https://registry.yarnpkg.com/crypto-browserify/-/crypto-browserify-3.12.0.tgz#396cf9f3137f03e4b8e532c58f698254e00f80ec"
@@ -1412,7 +1448,7 @@ debug@^3.1.0, debug@^3.2.5, debug@^3.2.6:
   dependencies:
     ms "^2.1.1"
 
-decamelize@^1.2.0:
+decamelize@^1.1.1, decamelize@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-1.2.0.tgz#f6534d15148269b20352e7bee26f501f9a191290"
   integrity sha1-9lNNFRSCabIDUue+4m9QH5oZEpA=
@@ -1554,6 +1590,13 @@ diffie-hellman@^5.0.0:
     miller-rabin "^4.0.0"
     randombytes "^2.0.0"
 
+dkim-signer@0.2.2:
+  version "0.2.2"
+  resolved "https://registry.yarnpkg.com/dkim-signer/-/dkim-signer-0.2.2.tgz#aa81ec071eeed3622781baa922044d7800e5f308"
+  integrity sha1-qoHsBx7u02IngbqpIgRNeADl8wg=
+  dependencies:
+    libmime "^2.0.3"
+
 dns-equal@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/dns-equal/-/dns-equal-1.0.0.tgz#b39e7f1da6eb0a75ba9c17324b34753c47e0654d"
@@ -1680,6 +1723,11 @@ elliptic@^6.0.0:
     minimalistic-assert "^1.0.0"
     minimalistic-crypto-utils "^1.0.0"
 
+email-validator@^2.0.3:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/email-validator/-/email-validator-2.0.4.tgz#b8dfaa5d0dae28f1b03c95881d904d4e40bfe7ed"
+  integrity sha512-gYCwo7kh5S3IDyZPLZf6hSS0MnZT8QmJFqYvbqlDZSbwdZlY6QZWxJ4i/6UhITOJ4XzyI647Bm2MXKCLqnJ4nQ==
+
 emoji-regex@^7.0.1:
   version "7.0.3"
   resolved "https://registry.yarnpkg.com/emoji-regex/-/emoji-regex-7.0.3.tgz#933a04052860c85e83c122479c4748a8e4c72156"
@@ -1857,6 +1905,19 @@ evp_bytestokey@^1.0.0, evp_bytestokey@^1.0.3:
     md5.js "^1.3.4"
     safe-buffer "^5.1.1"
 
+execa@^0.7.0:
+  version "0.7.0"
+  resolved "https://registry.yarnpkg.com/execa/-/execa-0.7.0.tgz#944becd34cc41ee32a63a9faf27ad5a65fc59777"
+  integrity sha1-lEvs00zEHuMqY6n68nrVpl/Fl3c=
+  dependencies:
+    cross-spawn "^5.0.1"
+    get-stream "^3.0.0"
+    is-stream "^1.1.0"
+    npm-run-path "^2.0.0"
+    p-finally "^1.0.0"
+    signal-exit "^3.0.0"
+    strip-eof "^1.0.0"
+
 execa@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/execa/-/execa-1.0.0.tgz#c6236a5bb4df6d6f15e88e7f017798216749ddd8"
@@ -2061,6 +2122,13 @@ find-cache-dir@^2.0.0:
     make-dir "^2.0.0"
     pkg-dir "^3.0.0"
 
+find-up@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/find-up/-/find-up-2.1.0.tgz#45d1b7e506c717ddd482775a2b77920a3c0c57a7"
+  integrity sha1-RdG35QbHF93UgndaK3eSCjwMV6c=
+  dependencies:
+    locate-path "^2.0.0"
+
 find-up@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/find-up/-/find-up-3.0.0.tgz#49169f1d7993430646da61ecc5ae355c21c97b73"
@@ -2222,6 +2290,11 @@ get-own-enumerable-property-symbols@^3.0.0:
   resolved "https://registry.yarnpkg.com/get-own-enumerable-property-symbols/-/get-own-enumerable-property-symbols-3.0.0.tgz#b877b49a5c16aefac3655f2ed2ea5b684df8d203"
   integrity sha512-CIJYJC4GGF06TakLg8z4GQKvDsx9EMspVxOYih7LerEL/WosUnFIww45CGfxfeKHqlg3twgUrYRT1O3WQqjGCg==
 
+get-stream@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-3.0.0.tgz#8e943d1358dc37555054ecbe2edb05aa174ede14"
+  integrity sha1-jpQ9E1jcN1VQVOy+LtsFqhdO3hQ=
+
 get-stream@^4.0.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-4.1.0.tgz#c1b255575f3dc21d59bfc79cd3d2b46b1c3a54b5"
@@ -2350,6 +2423,16 @@ graceful-fs@^4.1.11, graceful-fs@^4.1.15, graceful-fs@^4.1.2, graceful-fs@^4.1.6
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.2.0.tgz#8d8fdc73977cb04104721cb53666c1ca64cd328b"
   integrity sha512-jpSvDPV4Cq/bgtpndIWbI5hmYxhQGHPC4d4cqBPb4DLniCfhJokdXhwhaDuLBGLQdvvRum/UiX6ECVIPvDXqdg==
 
+gravatar@^1.8.0:
+  version "1.8.0"
+  resolved "https://registry.yarnpkg.com/gravatar/-/gravatar-1.8.0.tgz#1dd9ce0f6bb625802377233b96796181b39af8ff"
+  integrity sha512-00KTHk0tIgOdTGShjE64JS66WHlOAnku7nRyER4OsU5ekFvWZICpV0JYgwyp9NdId2KbJWqK03rn87LXBd1U4g==
+  dependencies:
+    blueimp-md5 "^2.3.0"
+    email-validator "^2.0.3"
+    querystring "0.2.0"
+    yargs "^11.0.0"
+
 growl@1.10.5:
   version "1.10.5"
   resolved "https://registry.yarnpkg.com/growl/-/growl-1.10.5.tgz#f2735dc2283674fa67478b10181059355c369e5e"
@@ -2636,6 +2719,16 @@ https-browserify@^1.0.0:
   resolved "https://registry.yarnpkg.com/https-browserify/-/https-browserify-1.0.0.tgz#ec06c10e0a34c0f2faf199f7fd7fc78fffd03c73"
   integrity sha1-7AbBDgo0wPL68Zn3/X/Hj//QPHM=
 
+iconv-lite@0.4.13:
+  version "0.4.13"
+  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.13.tgz#1f88aba4ab0b1508e8312acc39345f36e992e2f2"
+  integrity sha1-H4irpKsLFQjoMSrMOTRfNumS4vI=
+
+iconv-lite@0.4.15:
+  version "0.4.15"
+  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.15.tgz#fe265a218ac6a57cfe854927e9d04c19825eddeb"
+  integrity sha1-/iZaIYrGpXz+hUkn6dBMGYJe3es=
+
 iconv-lite@0.4.24, iconv-lite@^0.4.4:
   version "0.4.24"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.24.tgz#2022b4b25fbddc21d2f524974a474aafe733908b"
@@ -2741,6 +2834,11 @@ interpret@1.2.0:
   resolved "https://registry.yarnpkg.com/interpret/-/interpret-1.2.0.tgz#d5061a6224be58e8083985f5014d844359576296"
   integrity sha512-mT34yGKMNceBQUoVn7iCDKDntA7SC6gycMAWzGx1z/CMCTV7b2AAtXlo3nRyHZ1FelRkQbQjprHSYGwzLtkVbw==
 
+invert-kv@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/invert-kv/-/invert-kv-1.0.0.tgz#104a8e4aaca6d3d8cd157a8ef8bfab2d7a3ffdb6"
+  integrity sha1-EEqOSqym09jNFXqO+L+rLXo//bY=
+
 invert-kv@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/invert-kv/-/invert-kv-2.0.0.tgz#7393f5afa59ec9ff5f67a27620d11c226e3eec02"
@@ -3184,6 +3282,13 @@ kind-of@^6.0.0, kind-of@^6.0.2:
   resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-6.0.2.tgz#01146b36a6218e64e58f3a8d66de5d7fc6f6d051"
   integrity sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA==
 
+lcid@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/lcid/-/lcid-1.0.0.tgz#308accafa0bc483a3867b4b6f2b9506251d1b835"
+  integrity sha1-MIrMr6C8SDo4Z7S28rlQYlHRuDU=
+  dependencies:
+    invert-kv "^1.0.0"
+
 lcid@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/lcid/-/lcid-2.0.0.tgz#6ef5d2df60e52f82eb228a4c373e8d1f397253cf"
@@ -3290,6 +3395,34 @@ levelup@^4.0.0:
     level-iterator-stream "~4.0.0"
     xtend "~4.0.0"
 
+libbase64@0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/libbase64/-/libbase64-0.1.0.tgz#62351a839563ac5ff5bd26f12f60e9830bb751e6"
+  integrity sha1-YjUag5VjrF/1vSbxL2Dpgwu3UeY=
+
+libmime@2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/libmime/-/libmime-2.1.0.tgz#51bc76de2283161eb9051c4bc80aed713e4fd1cd"
+  integrity sha1-Ubx23iKDFh65BRxLyArtcT5P0c0=
+  dependencies:
+    iconv-lite "0.4.13"
+    libbase64 "0.1.0"
+    libqp "1.1.0"
+
+libmime@^2.0.3:
+  version "2.1.3"
+  resolved "https://registry.yarnpkg.com/libmime/-/libmime-2.1.3.tgz#25017ca5ab5a1e98aadbe2725017cf1d48a42a0c"
+  integrity sha1-JQF8pataHpiq2+JyUBfPHUikKgw=
+  dependencies:
+    iconv-lite "0.4.15"
+    libbase64 "0.1.0"
+    libqp "1.1.0"
+
+libqp@1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/libqp/-/libqp-1.1.0.tgz#f5e6e06ad74b794fb5b5b66988bf728ef1dedbe8"
+  integrity sha1-9ebgatdLeU+1tbZpiL9yjvHe2+g=
+
 livereload-js@^2.3.0:
   version "2.4.0"
   resolved "https://registry.yarnpkg.com/livereload-js/-/livereload-js-2.4.0.tgz#447c31cf1ea9ab52fc20db615c5ddf678f78009c"
@@ -3343,6 +3476,14 @@ loader-utils@^0.2.16:
     json5 "^0.5.0"
     object-assign "^4.0.1"
 
+locate-path@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/locate-path/-/locate-path-2.0.0.tgz#2b568b265eec944c6d9c0de9c3dbbbca0354cd8e"
+  integrity sha1-K1aLJl7slExtnA3pw9u7ygNUzY4=
+  dependencies:
+    p-locate "^2.0.0"
+    path-exists "^3.0.0"
+
 locate-path@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/locate-path/-/locate-path-3.0.0.tgz#dbec3b3ab759758071b58fe59fc41871af21400e"
@@ -3426,7 +3567,7 @@ lower-case@^1.1.1:
   resolved "https://registry.yarnpkg.com/lower-case/-/lower-case-1.1.4.tgz#9a2cabd1b9e8e0ae993a4bf7d5875c39c42e8eac"
   integrity sha1-miyr0bno4K6ZOkv31YdcOcQujqw=
 
-lru-cache@^4.1.2:
+lru-cache@^4.0.1, lru-cache@^4.1.2:
   version "4.1.5"
   resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-4.1.5.tgz#8bbe50ea85bed59bc9e33dcab8235ee9bcf443cd"
   integrity sha512-sWZlbEP2OsHNkXrMl5GYk/jKk70MBng6UU4YI/qGDYbgf6YbP4EvmqISbXCoJiRKs+1bSpFHVgQxvJ17F2li5g==
@@ -3446,6 +3587,14 @@ ltgt@^2.1.2:
   resolved "https://registry.yarnpkg.com/ltgt/-/ltgt-2.2.1.tgz#f35ca91c493f7b73da0e07495304f17b31f87ee5"
   integrity sha1-81ypHEk/e3PaDgdJUwTxezH4fuU=
 
+mailcomposer@3.12.0:
+  version "3.12.0"
+  resolved "https://registry.yarnpkg.com/mailcomposer/-/mailcomposer-3.12.0.tgz#9c5e1188aa8e1c62ec8b86bd43468102b639e8f9"
+  integrity sha1-nF4RiKqOHGLsi4a9Q0aBArY56Pk=
+  dependencies:
+    buildmail "3.10.0"
+    libmime "2.1.0"
+
 make-dir@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/make-dir/-/make-dir-2.1.0.tgz#5f0310e18b8be898cc07009295a30ae41e91e6f5"
@@ -3497,6 +3646,13 @@ media-typer@0.3.0:
   resolved "https://registry.yarnpkg.com/media-typer/-/media-typer-0.3.0.tgz#8710d7af0aa626f8fffa1ce00168545263255748"
   integrity sha1-hxDXrwqmJvj/+hzgAWhUUmMlV0g=
 
+mem@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/mem/-/mem-1.1.0.tgz#5edd52b485ca1d900fe64895505399a0dfa45f76"
+  integrity sha1-Xt1StIXKHZAP5kiVUFOZoN+kX3Y=
+  dependencies:
+    mimic-fn "^1.0.0"
+
 mem@^4.0.0:
   version "4.3.0"
   resolved "https://registry.yarnpkg.com/mem/-/mem-4.3.0.tgz#461af497bc4ae09608cdb2e60eefb69bff744178"
@@ -3585,6 +3741,11 @@ mime@^2.4.2:
   resolved "https://registry.yarnpkg.com/mime/-/mime-2.4.4.tgz#bd7b91135fc6b01cde3e9bae33d659b63d8857e5"
   integrity sha512-LRxmNwziLPT828z+4YkNzloCFC2YM4wrB99k+AV5ZbEyfGNWfG8SO1FUXLmLDBSo89NrJZ4DIWeLjy1CHGhMGA==
 
+mimic-fn@^1.0.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-1.2.0.tgz#820c86a39334640e99516928bd03fca88057d022"
+  integrity sha512-jf84uxzwiuiIVKiOLpfYk7N46TSy8ubTonmneY9vrpHNAnp0QBt2BxWV9dO3/j+BoVAb+a5G6YDPW3M5HOdMWQ==
+
 mimic-fn@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-2.1.0.tgz#7ed2c2ccccaf84d3ffcb7a69b57711fc2083401b"
@@ -3856,6 +4017,18 @@ node-pre-gyp@^0.12.0:
     semver "^5.3.0"
     tar "^4"
 
+nodemailer-fetch@1.6.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/nodemailer-fetch/-/nodemailer-fetch-1.6.0.tgz#79c4908a1c0f5f375b73fe888da9828f6dc963a4"
+  integrity sha1-ecSQihwPXzdbc/6IjamCj23JY6Q=
+
+nodemailer-shared@1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/nodemailer-shared/-/nodemailer-shared-1.1.0.tgz#cf5994e2fd268d00f5cf0fa767a08169edb07ec0"
+  integrity sha1-z1mU4v0mjQD1zw+nZ6CBae2wfsA=
+  dependencies:
+    nodemailer-fetch "1.6.0"
+
 nopt@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/nopt/-/nopt-4.0.1.tgz#d0d4685afd5415193c8c7505602d0d17cd64474d"
@@ -4055,6 +4228,15 @@ os-homedir@^1.0.0:
   resolved "https://registry.yarnpkg.com/os-homedir/-/os-homedir-1.0.2.tgz#ffbc4988336e0e833de0c168c7ef152121aa7fb3"
   integrity sha1-/7xJiDNuDoM94MFox+8VISGqf7M=
 
+os-locale@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/os-locale/-/os-locale-2.1.0.tgz#42bc2900a6b5b8bd17376c8e882b65afccf24bf2"
+  integrity sha512-3sslG3zJbEYcaC4YVAvDorjGxc7tv6KVATnLPZONiljsUncvihe9BQoVCEs0RZ1kmf4Hk9OBqlZfJZWI4GanKA==
+  dependencies:
+    execa "^0.7.0"
+    lcid "^1.0.0"
+    mem "^1.1.0"
+
 os-locale@^3.0.0, os-locale@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/os-locale/-/os-locale-3.1.0.tgz#a802a6ee17f24c10483ab9935719cef4ed16bf1a"
@@ -4092,6 +4274,13 @@ p-is-promise@^2.0.0:
   resolved "https://registry.yarnpkg.com/p-is-promise/-/p-is-promise-2.1.0.tgz#918cebaea248a62cf7ffab8e3bca8c5f882fc42e"
   integrity sha512-Y3W0wlRPK8ZMRbNq97l4M5otioeA5lm1z7bkNkxCka8HSPjR0xRWmpCmc9utiaLP9Jb1eD8BgeIxTW4AIF45Pg==
 
+p-limit@^1.1.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/p-limit/-/p-limit-1.3.0.tgz#b86bd5f0c25690911c7590fcbfc2010d54b3ccb8"
+  integrity sha512-vvcXsLAJ9Dr5rQOPk7toZQZJApBl2K4J6dANSsEuh6QI41JYcsS/qhTGa9ErIUUgK3WNQoJYvylxvjqmiqEA9Q==
+  dependencies:
+    p-try "^1.0.0"
+
 p-limit@^2.0.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/p-limit/-/p-limit-2.2.0.tgz#417c9941e6027a9abcba5092dd2904e255b5fbc2"
@@ -4099,6 +4288,13 @@ p-limit@^2.0.0:
   dependencies:
     p-try "^2.0.0"
 
+p-locate@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/p-locate/-/p-locate-2.0.0.tgz#20a0103b222a70c8fd39cc2e580680f3dde5ec43"
+  integrity sha1-IKAQOyIqcMj9OcwuWAaA893l7EM=
+  dependencies:
+    p-limit "^1.1.0"
+
 p-locate@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/p-locate/-/p-locate-3.0.0.tgz#322d69a05c0264b25997d9f40cd8a891ab0064a4"
@@ -4118,6 +4314,11 @@ p-retry@^3.0.1:
   dependencies:
     retry "^0.12.0"
 
+p-try@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/p-try/-/p-try-1.0.0.tgz#cbc79cdbaf8fd4228e13f621f2b1a237c1b207b3"
+  integrity sha1-y8ec26+P1CKOE/Yh8rGiN8GyB7M=
+
 p-try@^2.0.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/p-try/-/p-try-2.2.0.tgz#cb2868540e313d61de58fafbe35ce9004d5540e6"
@@ -4917,6 +5118,14 @@ send@0.17.1:
     range-parser "~1.2.1"
     statuses "~1.5.0"
 
+sendmail@^1.6.1:
+  version "1.6.1"
+  resolved "https://registry.yarnpkg.com/sendmail/-/sendmail-1.6.1.tgz#6be92fb4be70d1d9ad102030aeb1e737bd512159"
+  integrity sha512-lIhvnjSi5e5jL8wA1GPP6j2QVlx6JOEfmdn0QIfmuJdmXYGmJ375kcOU0NSm/34J+nypm4sa1AXrYE5w3uNIIA==
+  dependencies:
+    dkim-signer "0.2.2"
+    mailcomposer "3.12.0"
+
 serial-stream@0.0.2:
   version "0.0.2"
   resolved "https://registry.yarnpkg.com/serial-stream/-/serial-stream-0.0.2.tgz#687ecf283f5e131cbd33c3e4304a029042a8696f"
@@ -6266,6 +6475,11 @@ xtend@^4.0.0, xtend@~4.0.0, xtend@~4.0.1:
   resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.1.tgz#a5c6d532be656e23db820efb943a1f04998d63af"
   integrity sha1-pcbVMr5lbiPbgg77lDofBJmNY68=
 
+y18n@^3.2.1:
+  version "3.2.1"
+  resolved "https://registry.yarnpkg.com/y18n/-/y18n-3.2.1.tgz#6d15fba884c08679c0d77e88e7759e811e07fa41"
+  integrity sha1-bRX7qITAhnnA136I53WegR4H+kE=
+
 "y18n@^3.2.1 || ^4.0.0", y18n@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/y18n/-/y18n-4.0.0.tgz#95ef94f85ecc81d007c264e190a120f0a3c8566b"
@@ -6304,6 +6518,13 @@ yargs-parser@^4.0.2:
   dependencies:
     camelcase "^3.0.0"
 
+yargs-parser@^9.0.2:
+  version "9.0.2"
+  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-9.0.2.tgz#9ccf6a43460fe4ed40a9bb68f48d43b8a68cc077"
+  integrity sha1-nM9qQ0YP5O1Aqbto9I1DuKaMwHc=
+  dependencies:
+    camelcase "^4.1.0"
+
 yargs@12.0.5:
   version "12.0.5"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-12.0.5.tgz#05f5997b609647b64f66b81e3b4b10a368e7ad13"
@@ -6338,3 +6559,21 @@ yargs@13.2.4:
     which-module "^2.0.0"
     y18n "^4.0.0"
     yargs-parser "^13.1.0"
+
+yargs@^11.0.0:
+  version "11.1.0"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-11.1.0.tgz#90b869934ed6e871115ea2ff58b03f4724ed2d77"
+  integrity sha512-NwW69J42EsCSanF8kyn5upxvjp5ds+t3+udGBeTbFnERA+lF541DDpMawzo4z6W/QrzNM18D+BPMiOBibnFV5A==
+  dependencies:
+    cliui "^4.0.0"
+    decamelize "^1.1.1"
+    find-up "^2.1.0"
+    get-caller-file "^1.0.1"
+    os-locale "^2.0.0"
+    require-directory "^2.1.1"
+    require-main-filename "^1.0.1"
+    set-blocking "^2.0.0"
+    string-width "^2.0.0"
+    which-module "^2.0.0"
+    y18n "^3.2.1"
+    yargs-parser "^9.0.2"