a few changes to make A/B testing easier

2017-08-24 14:54:02 -07:00 · 2017-08-24 14:54:02 -07:00 · 53e822964e
parent b2f76d2df9
commit 53e822964e
94 changed files with 4566 additions and 3958 deletions
--- a/.dockerignore
+++ b/.dockerignore
@ -1,12 +1,8 @@
 node_modules
 .git
 .DS_Store
-static
-test
-scripts
-docs
 firefox
+assets
+docs
 public
-views
-webpack
-frontend
+test
--- a/.eslintignore
+++ b/.eslintignore
@ -1,3 +1,3 @@
-public
-test/frontend/bundle.js
+dist
+assets
 firefox
--- a/.gitignore
+++ b/.gitignore
@ -1,6 +1,2 @@
-.DS_Store
-dist
 node_modules
-static/*
-!static/info.txt
-test/frontend/bundle.js
+dist
--- a/2
+++ b/2
@ -12,4 +12,4 @@ RUN npm install --production && npm cache clean --force
 ENV PORT=1443
 EXPOSE $PORT

-CMD ["npm", "start"]
+CMD ["npm", "run", "prod"]
--- a/README.md
+++ b/README.md
@ -30,11 +30,12 @@ $ redis-server /usr/local/etc/redis.conf

 | Command          | Description |
 |------------------|-------------|
-| `npm run dev`    | Builds and starts the web server locally for development.
 | `npm run format` | Formats the frontend and server code using **prettier**.
 | `npm run lint`   | Lints the CSS and JavaScript code.
-| `npm start`      | Starts the Express web server.
 | `npm test`       | Runs the suite of mocha tests.
+| `npm start`      | Runs the server in development configuration.
+| `npm run build`  | Builds the production assets.
+| `npm run prod`   | Runs the server in production configuration.

 ---

--- a/frontend/src/.eslintrc.yml
+++ b/frontend/src/.eslintrc.yml
@ -1,6 +1,6 @@
 env:
  browser: true
-  node: false
+  node: true

 parserOptions:
  sourceType: module
--- a/app/dragManager.js
+++ b/app/dragManager.js
@ -0,0 +1,24 @@
+export default function(state, emitter) {
+  emitter.on('DOMContentLoaded', () => {
+    document.body.addEventListener('dragover', event => {
+      if (state.route === '/') {
+        event.preventDefault();
+      }
+    });
+    document.body.addEventListener('drop', event => {
+      if (state.route === '/' && !state.transfer) {
+        event.preventDefault();
+        document.querySelector('.upload-window').classList.remove('ondrag');
+        const target = event.dataTransfer;
+        if (target.files.length === 0) {
+          return;
+        }
+        if (target.files.length > 1 || target.files[0].size === 0) {
+          return alert(state.translate('uploadPageMultipleFilesAlert'));
+        }
+        const file = target.files[0];
+        emitter.emit('upload', { file, type: 'drop' });
+      }
+    });
+  });
+}
--- a/app/fileManager.js
+++ b/app/fileManager.js
@ -0,0 +1,202 @@
+/* global EXPIRE_SECONDS */
+import FileSender from './fileSender';
+import FileReceiver from './fileReceiver';
+import { copyToClipboard, delay, fadeOut } from './utils';
+import * as metrics from './metrics';
+
+function saveFile(file) {
+  const dataView = new DataView(file.plaintext);
+  const blob = new Blob([dataView], { type: file.type });
+  const downloadUrl = URL.createObjectURL(blob);
+
+  if (window.navigator.msSaveBlob) {
+    return window.navigator.msSaveBlob(blob, file.name);
+  }
+  const a = document.createElement('a');
+  a.href = downloadUrl;
+  a.download = file.name;
+  document.body.appendChild(a);
+  a.click();
+  URL.revokeObjectURL(downloadUrl);
+}
+
+function openLinksInNewTab(links, should = true) {
+  links = links || Array.from(document.querySelectorAll('a:not([target])'));
+  if (should) {
+    links.forEach(l => {
+      l.setAttribute('target', '_blank');
+      l.setAttribute('rel', 'noopener noreferrer');
+    });
+  } else {
+    links.forEach(l => {
+      l.removeAttribute('target');
+      l.removeAttribute('rel');
+    });
+  }
+  return links;
+}
+
+function exists(id) {
+  return new Promise((resolve, reject) => {
+    const xhr = new XMLHttpRequest();
+    xhr.onreadystatechange = () => {
+      if (xhr.readyState === XMLHttpRequest.HEADERS_RECEIVED) {
+        resolve(xhr.status === 200);
+      }
+    };
+    xhr.onerror = () => resolve(false);
+    xhr.ontimeout = () => resolve(false);
+    xhr.open('get', '/api/exists/' + id);
+    xhr.timeout = 2000;
+    xhr.send();
+  });
+}
+
+export default function(state, emitter) {
+  let lastRender = 0;
+
+  function render() {
+    emitter.emit('render');
+  }
+
+  async function checkFiles() {
+    const files = state.storage.files;
+    let rerender = false;
+    for (const file of files) {
+      const ok = await exists(file.id);
+      if (!ok) {
+        state.storage.remove(file.id);
+        rerender = true;
+      }
+    }
+    if (rerender) {
+      render();
+    }
+  }
+
+  emitter.on('DOMContentLoaded', checkFiles);
+
+  emitter.on('navigate', checkFiles);
+
+  emitter.on('render', () => {
+    lastRender = Date.now();
+  });
+
+  emitter.on('delete', async ({ file, location }) => {
+    try {
+      metrics.deletedUpload({
+        size: file.size,
+        time: file.time,
+        speed: file.speed,
+        type: file.type,
+        ttl: file.expiresAt - Date.now(),
+        location
+      });
+      state.storage.remove(file.id);
+      await FileSender.delete(file.id, file.deleteToken);
+    } catch (e) {
+      state.raven.captureException(e);
+    }
+    state.fileInfo = null;
+  });
+
+  emitter.on('cancel', () => {
+    state.transfer.cancel();
+  });
+
+  emitter.on('upload', async ({ file, type }) => {
+    const size = file.size;
+    const sender = new FileSender(file);
+    sender.on('progress', render);
+    sender.on('encrypting', render);
+    state.transfer = sender;
+    render();
+    const links = openLinksInNewTab();
+    await delay(200);
+    try {
+      const start = Date.now();
+      metrics.startedUpload({ size, type });
+      const info = await sender.upload();
+      const time = Date.now() - start;
+      const speed = size / (time / 1000);
+      metrics.completedUpload({ size, time, speed, type });
+      await delay(1000);
+      await fadeOut('upload-progress');
+      info.name = file.name;
+      info.size = size;
+      info.type = type;
+      info.time = time;
+      info.speed = speed;
+      info.createdAt = Date.now();
+      info.url = `${info.url}#${info.secretKey}`;
+      info.expiresAt = Date.now() + EXPIRE_SECONDS * 1000;
+      state.fileInfo = info;
+      state.storage.addFile(state.fileInfo);
+      openLinksInNewTab(links, false);
+      state.transfer = null;
+      state.storage.totalUploads += 1;
+      emitter.emit('pushState', `/share/${info.id}`);
+    } catch (err) {
+      state.transfer = null;
+      if (err.message === '0') {
+        //cancelled. do nothing
+        metrics.cancelledUpload({ size, type });
+        return render();
+      }
+      state.raven.captureException(err);
+      metrics.stoppedUpload({ size, type, err });
+      emitter.emit('replaceState', '/error');
+    }
+  });
+
+  emitter.on('download', async file => {
+    const size = file.size;
+    const url = `/api/download/${file.id}`;
+    const receiver = new FileReceiver(url, file.key);
+    receiver.on('progress', render);
+    receiver.on('decrypting', render);
+    state.transfer = receiver;
+    const links = openLinksInNewTab();
+    render();
+    try {
+      const start = Date.now();
+      metrics.startedDownload({ size: file.size, ttl: file.ttl });
+      const f = await receiver.download();
+      const time = Date.now() - start;
+      const speed = size / (time / 1000);
+      await delay(1000);
+      await fadeOut('download-progress');
+      saveFile(f);
+      state.storage.totalDownloads += 1;
+      metrics.completedDownload({ size, time, speed });
+      emitter.emit('pushState', '/completed');
+    } catch (err) {
+      // TODO cancelled download
+      const location = err.message === 'notfound' ? '/404' : '/error';
+      if (location === '/error') {
+        state.raven.captureException(err);
+        metrics.stoppedDownload({ size, err });
+      }
+      emitter.emit('replaceState', location);
+    } finally {
+      state.transfer = null;
+      openLinksInNewTab(links, false);
+    }
+  });
+
+  emitter.on('copy', ({ url, location }) => {
+    copyToClipboard(url);
+    metrics.copiedLink({ location });
+  });
+
+  setInterval(() => {
+    // poll for rerendering the file list countdown timers
+    if (
+      state.route === '/' &&
+      state.storage.files.length > 0 &&
+      Date.now() - lastRender > 30000
+    ) {
+      render();
+    }
+  }, 60000);
+}
--- a/frontend/src/fileReceiver.js
+++ b/frontend/src/fileReceiver.js
@ -1,9 +1,9 @@
-import EventEmitter from 'events';
-import { hexToArray } from './utils';
+import Nanobus from 'nanobus';
+import { hexToArray, bytes } from './utils';

-export default class FileReceiver extends EventEmitter {
+export default class FileReceiver extends Nanobus {
  constructor(url, k) {
-    super();
+    super('FileReceiver');
    this.key = window.crypto.subtle.importKey(
      'jwk',
      {
@ -19,6 +19,23 @@ export default class FileReceiver extends EventEmitter {
      ['decrypt']
    );
    this.url = url;
+    this.msg = 'fileSizeProgress';
+    this.progress = [0, 1];
+  }
+
+  get progressRatio() {
+    return this.progress[0] / this.progress[1];
+  }
+
+  get sizes() {
+    return {
+      partialSize: bytes(this.progress[0]),
+      totalSize: bytes(this.progress[1])
+    };
+  }
+
+  cancel() {
+    // TODO
  }

  downloadFile() {
@ -27,7 +44,8 @@ export default class FileReceiver extends EventEmitter {

      xhr.onprogress = event => {
        if (event.lengthComputable && event.target.status !== 404) {
-          this.emit('progress', [event.loaded, event.total]);
+          this.progress = [event.loaded, event.total];
+          this.emit('progress', this.progress);
        }
      };

@ -61,6 +79,7 @@ export default class FileReceiver extends EventEmitter {
  async download() {
    const key = await this.key;
    const file = await this.downloadFile();
+    this.msg = 'decryptingFile';
    this.emit('decrypting');
    const plaintext = await window.crypto.subtle.decrypt(
      {
@ -71,6 +90,7 @@ export default class FileReceiver extends EventEmitter {
      key,
      file.data
    );
+    this.msg = 'downloadFinish';
    return {
      plaintext,
      name: decodeURIComponent(file.name),
--- a/frontend/src/fileSender.js
+++ b/frontend/src/fileSender.js
@ -1,10 +1,13 @@
-import EventEmitter from 'events';
-import { arrayToHex } from './utils';
+import Nanobus from 'nanobus';
+import { arrayToHex, bytes } from './utils';

-export default class FileSender extends EventEmitter {
+export default class FileSender extends Nanobus {
  constructor(file) {
-    super();
+    super('FileSender');
    this.file = file;
+    this.msg = 'importingFile';
+    this.progress = [0, 1];
+    this.cancelled = false;
    this.iv = window.crypto.getRandomValues(new Uint8Array(12));
    this.uploadXHR = new XMLHttpRequest();
    this.key = window.crypto.subtle.generateKey(
@ -17,13 +20,13 @@ export default class FileSender extends EventEmitter {
    );
  }

-  static delete(fileId, token) {
+  static delete(id, token) {
    return new Promise((resolve, reject) => {
-      if (!fileId || !token) {
+      if (!id || !token) {
        return reject();
      }
      const xhr = new XMLHttpRequest();
-      xhr.open('post', '/delete/' + fileId, true);
+      xhr.open('POST', `/api/delete/${id}`);
      xhr.setRequestHeader('Content-Type', 'application/json');

      xhr.onreadystatechange = () => {
@ -36,8 +39,22 @@ export default class FileSender extends EventEmitter {
    });
  }

+  get progressRatio() {
+    return this.progress[0] / this.progress[1];
+  }
+
+  get sizes() {
+    return {
+      partialSize: bytes(this.progress[0]),
+      totalSize: bytes(this.progress[1])
+    };
+  }
+
  cancel() {
-    this.uploadXHR.abort();
+    this.cancelled = true;
+    if (this.msg === 'fileSizeProgress') {
+      this.uploadXHR.abort();
+    }
  }

  readFile() {
@ -57,7 +74,7 @@ export default class FileSender extends EventEmitter {
  uploadFile(encrypted, keydata) {
    return new Promise((resolve, reject) => {
      const file = this.file;
-      const fileId = arrayToHex(this.iv);
+      const id = arrayToHex(this.iv);
      const dataView = new DataView(encrypted);
      const blob = new Blob([dataView], { type: file.type });
      const fd = new FormData();
@ -67,41 +84,49 @@ export default class FileSender extends EventEmitter {

      xhr.upload.addEventListener('progress', e => {
        if (e.lengthComputable) {
-          this.emit('progress', [e.loaded, e.total]);
+          this.progress = [e.loaded, e.total];
+          this.emit('progress', this.progress);
        }
      });

      xhr.onreadystatechange = () => {
        if (xhr.readyState === XMLHttpRequest.DONE) {
          if (xhr.status === 200) {
+            this.progress = [1, 1];
+            this.msg = 'notifyUploadDone';
            const responseObj = JSON.parse(xhr.responseText);
            return resolve({
              url: responseObj.url,
-              fileId: responseObj.id,
+              id: responseObj.id,
              secretKey: keydata.k,
              deleteToken: responseObj.delete
            });
          }
-          reject(xhr.status);
+          this.msg = 'errorPageHeader';
+          reject(new Error(xhr.status));
        }
      };

-      xhr.open('post', '/upload', true);
+      xhr.open('post', '/api/upload', true);
      xhr.setRequestHeader(
        'X-File-Metadata',
        JSON.stringify({
-          id: fileId,
+          id: id,
          filename: encodeURIComponent(file.name)
        })
      );
      xhr.send(fd);
+      this.msg = 'fileSizeProgress';
    });
  }

  async upload() {
-    this.emit('loading');
    const key = await this.key;
    const plaintext = await this.readFile();
+    if (this.cancelled) {
+      throw new Error(0);
+    }
+    this.msg = 'encryptingFile';
    this.emit('encrypting');
    const encrypted = await window.crypto.subtle.encrypt(
      {
@ -112,6 +137,9 @@ export default class FileSender extends EventEmitter {
      key,
      plaintext
    );
+    if (this.cancelled) {
+      throw new Error(0);
+    }
    const keydata = await window.crypto.subtle.exportKey('jwk', key);
    return this.uploadFile(encrypted, keydata);
  }
--- a/app/main.js
+++ b/app/main.js
@ -0,0 +1,38 @@
+import app from './routes';
+import log from 'choo-log';
+import locale from '../common/locales';
+import fileManager from './fileManager';
+import dragManager from './dragManager';
+import { canHasSend } from './utils';
+import assets from '../common/assets';
+import storage from './storage';
+import metrics from './metrics';
+import Raven from 'raven-js';
+
+if (navigator.doNotTrack !== '1' && window.RAVEN_CONFIG) {
+  Raven.config(window.SENTRY_ID, window.RAVEN_CONFIG).install();
+}
+
+app.use(log());
+
+app.use((state, emitter) => {
+  // init state
+  state.transfer = null;
+  state.fileInfo = null;
+  state.translate = locale.getTranslator();
+  state.storage = storage;
+  state.raven = Raven;
+  emitter.on('DOMContentLoaded', async () => {
+    const ok = await canHasSend(assets.get('cryptofill.js'));
+    if (!ok) {
+      const reason = /firefox/i.test(navigator.userAgent) ? 'outdated' : 'gcm';
+      emitter.emit('replaceState', `/unsupported/${reason}`);
+    }
+  });
+});
+
+app.use(metrics);
+app.use(fileManager);
+app.use(dragManager);
+
+app.mount('#page-one');
--- a/frontend/src/metrics.js
+++ b/frontend/src/metrics.js
@ -1,12 +1,11 @@
 import testPilotGA from 'testpilot-ga/src/TestPilotGA';
-import Storage from './storage';
-const storage = new Storage();
+import storage from './storage';

 let hasLocalStorage = false;
 try {
-  hasLocalStorage = !!localStorage;
+  hasLocalStorage = typeof localStorage !== 'undefined';
 } catch (e) {
-  // don't care
+  // when disabled, any mention of localStorage throws an error
 }

 const analytics = new testPilotGA({
@ -15,14 +14,19 @@ const analytics = new testPilotGA({
  tid: window.GOOGLE_ANALYTICS_ID
 });

-const category = location.pathname.includes('/download')
-  ? 'recipient'
-  : 'sender';
+let appState = null;

-document.addEventListener('DOMContentLoaded', function() {
-  addExitHandlers();
-  addRestartHandlers();
-});
+export default function initialize(state, emitter) {
+  appState = state;
+  emitter.on('DOMContentLoaded', () => {
+    addExitHandlers();
+    //TODO restart handlers... somewhere
+  });
+}
+
+function category() {
+  return appState.route === '/' ? 'sender' : 'recipient';
+}

 function sendEvent() {
  return (
@ -62,11 +66,11 @@ function urlToMetric(url) {
 }

 function setReferrer(state) {
-  if (category === 'sender') {
+  if (category() === 'sender') {
    if (state) {
      storage.referrer = `${state}-upload`;
    }
-  } else if (category === 'recipient') {
+  } else if (category() === 'recipient') {
    if (state) {
      storage.referrer = `${state}-download`;
    }
@ -87,10 +91,10 @@ function takeReferrer() {
 }

 function startedUpload(params) {
-  return sendEvent(category, 'upload-started', {
+  return sendEvent('sender', 'upload-started', {
    cm1: params.size,
    cm5: storage.totalUploads,
-    cm6: storage.numFiles + 1,
+    cm6: storage.files.length + 1,
    cm7: storage.totalDownloads,
    cd1: params.type,
    cd5: takeReferrer()
@ -99,10 +103,10 @@ function startedUpload(params) {

 function cancelledUpload(params) {
  setReferrer('cancelled');
-  return sendEvent(category, 'upload-stopped', {
+  return sendEvent('sender', 'upload-stopped', {
    cm1: params.size,
    cm5: storage.totalUploads,
-    cm6: storage.numFiles,
+    cm6: storage.files.length,
    cm7: storage.totalDownloads,
    cd1: params.type,
    cd2: 'cancelled'
@ -110,12 +114,12 @@ function cancelledUpload(params) {
 }

 function completedUpload(params) {
-  return sendEvent(category, 'upload-stopped', {
+  return sendEvent('sender', 'upload-stopped', {
    cm1: params.size,
    cm2: params.time,
    cm3: params.speed,
    cm5: storage.totalUploads,
-    cm6: storage.numFiles,
+    cm6: storage.files.length,
    cm7: storage.totalDownloads,
    cd1: params.type,
    cd2: 'completed'
@ -123,20 +127,20 @@ function completedUpload(params) {
 }

 function startedDownload(params) {
-  return sendEvent(category, 'download-started', {
+  return sendEvent('recipient', 'download-started', {
    cm1: params.size,
    cm4: params.ttl,
    cm5: storage.totalUploads,
-    cm6: storage.numFiles,
+    cm6: storage.files.length,
    cm7: storage.totalDownloads
  });
 }

 function stoppedDownload(params) {
-  return sendEvent(category, 'download-stopped', {
+  return sendEvent('recipient', 'download-stopped', {
    cm1: params.size,
    cm5: storage.totalUploads,
-    cm6: storage.numFiles,
+    cm6: storage.files.length,
    cm7: storage.totalDownloads,
    cd2: 'errored',
    cd6: params.err
@ -145,20 +149,20 @@ function stoppedDownload(params) {

 function cancelledDownload(params) {
  setReferrer('cancelled');
-  return sendEvent(category, 'download-stopped', {
+  return sendEvent('recipient', 'download-stopped', {
    cm1: params.size,
    cm5: storage.totalUploads,
-    cm6: storage.numFiles,
+    cm6: storage.files.length,
    cm7: storage.totalDownloads,
    cd2: 'cancelled'
  });
 }

 function stoppedUpload(params) {
-  return sendEvent(category, 'upload-stopped', {
+  return sendEvent('sender', 'upload-stopped', {
    cm1: params.size,
    cm5: storage.totalUploads,
-    cm6: storage.numFiles,
+    cm6: storage.files.length,
    cm7: storage.totalDownloads,
    cd1: params.type,
    cd2: 'errored',
@ -167,25 +171,25 @@ function stoppedUpload(params) {
 }

 function completedDownload(params) {
-  return sendEvent(category, 'download-stopped', {
+  return sendEvent('recipient', 'download-stopped', {
    cm1: params.size,
    cm2: params.time,
    cm3: params.speed,
    cm5: storage.totalUploads,
-    cm6: storage.numFiles,
+    cm6: storage.files.length,
    cm7: storage.totalDownloads,
    cd2: 'completed'
  });
 }

 function deletedUpload(params) {
-  return sendEvent(category, 'upload-deleted', {
+  return sendEvent(category(), 'upload-deleted', {
    cm1: params.size,
    cm2: params.time,
    cm3: params.speed,
    cm4: params.ttl,
    cm5: storage.totalUploads,
-    cm6: storage.numFiles,
+    cm6: storage.files.length,
    cm7: storage.totalDownloads,
    cd1: params.type,
    cd4: params.location
@ -193,19 +197,19 @@ function deletedUpload(params) {
 }

 function unsupported(params) {
-  return sendEvent(category, 'unsupported', {
+  return sendEvent(category(), 'unsupported', {
    cd6: params.err
  });
 }

 function copiedLink(params) {
-  return sendEvent(category, 'copied', {
+  return sendEvent('sender', 'copied', {
    cd4: params.location
  });
 }

 function exitEvent(target) {
-  return sendEvent(category, 'exited', {
+  return sendEvent(category(), 'exited', {
    cd3: urlToMetric(target.currentTarget.href)
  });
 }
@ -219,21 +223,13 @@ function addExitHandlers() {
  });
 }

-function restartEvent(state) {
+function restart(state) {
  setReferrer(state);
-  return sendEvent(category, 'restarted', {
+  return sendEvent(category(), 'restarted', {
    cd2: state
  });
 }

-function addRestartHandlers() {
-  const elements = Array.from(document.querySelectorAll('.send-new'));
-  elements.forEach(el => {
-    const state = el.getAttribute('data-state');
-    el.addEventListener('click', restartEvent.bind(null, state));
-  });
-}
-
 export {
  copiedLink,
  startedUpload,
@ -245,5 +241,6 @@ export {
  cancelledDownload,
  stoppedDownload,
  completedDownload,
+  restart,
  unsupported
 };
--- a/app/routes/download.js
+++ b/app/routes/download.js
@ -0,0 +1,9 @@
+const preview = require('../templates/preview');
+const download = require('../templates/download');
+
+module.exports = function(state, emit) {
+  if (state.transfer) {
+    return download(state, emit);
+  }
+  return preview(state, emit);
+};
--- a/app/routes/home.js
+++ b/app/routes/home.js
@ -0,0 +1,9 @@
+const welcome = require('../templates/welcome');
+const upload = require('../templates/upload');
+
+module.exports = function(state, emit) {
+  if (state.transfer) {
+    return upload(state, emit);
+  }
+  return welcome(state, emit);
+};
--- a/app/routes/index.js
+++ b/app/routes/index.js
@ -0,0 +1,17 @@
+const choo = require('choo');
+const download = require('./download');
+
+const app = choo();
+
+app.route('/', require('./home'));
+app.route('/share/:id', require('../templates/share'));
+app.route('/download/:id', download);
+app.route('/download/:id/:key', download);
+app.route('/completed', require('../templates/completed'));
+app.route('/unsupported/:reason', require('../templates/unsupported'));
+app.route('/legal', require('../templates/legal'));
+app.route('/error', require('../templates/error'));
+app.route('/blank', require('../templates/blank'));
+app.route('*', require('../templates/notFound'));
+
+module.exports = app;
--- a/frontend/src/storage.js
+++ b/frontend/src/storage.js
@ -26,13 +26,30 @@ class Mem {
  }
 }

-export default class Storage {
+class Storage {
  constructor() {
    try {
      this.engine = localStorage || new Mem();
    } catch (e) {
      this.engine = new Mem();
    }
+    this._files = this.loadFiles();
+  }
+
+  loadFiles() {
+    const fs = [];
+    for (let i = 0; i < this.engine.length; i++) {
+      const k = this.engine.key(i);
+      if (isFile(k)) {
+        try {
+          fs.push(JSON.parse(this.engine.getItem(k)));
+        } catch (err) {
+          // obviously you're not a golfer
+          this.engine.removeItem(k);
+        }
+      }
+    }
+    return fs.sort((a, b) => a.createdAt - b.createdAt);
  }

  get totalDownloads() {
@ -55,34 +72,7 @@ export default class Storage {
  }

  get files() {
-    const fs = [];
-    for (let i = 0; i < this.engine.length; i++) {
-      const k = this.engine.key(i);
-      if (isFile(k)) {
-        try {
-          fs.push(JSON.parse(this.engine.getItem(k)));
-        } catch (err) {
-          // obviously you're not a golfer
-          this.engine.removeItem(k);
-        }
-      }
-    }
-    return fs.sort((file1, file2) => {
-      const creationDate1 = new Date(file1.creationDate);
-      const creationDate2 = new Date(file2.creationDate);
-      return creationDate1 - creationDate2;
-    });
-  }
-
-  get numFiles() {
-    let length = 0;
-    for (let i = 0; i < this.engine.length; i++) {
-      const k = this.engine.key(i);
-      if (isFile(k)) {
-        length += 1;
-      }
-    }
-    return length;
+    return this._files;
  }

  getFileById(id) {
@ -94,10 +84,16 @@ export default class Storage {
  }

  remove(property) {
+    if (isFile(property)) {
+      this._files.splice(this._files.findIndex(f => f.id === property), 1);
+    }
    this.engine.removeItem(property);
  }

-  addFile(id, file) {
-    this.engine.setItem(id, JSON.stringify(file));
+  addFile(file) {
+    this._files.push(file);
+    this.engine.setItem(file.id, JSON.stringify(file));
  }
 }
+
+export default new Storage();
--- a/app/templates/blank.js
+++ b/app/templates/blank.js
@ -0,0 +1,9 @@
+const html = require('choo/html');
+
+module.exports = function(state) {
+  const div = html`<div id="page-one"></div>`;
+  if (state.layout) {
+    return state.layout(state, div);
+  }
+  return div;
+};
--- a/app/templates/completed.js
+++ b/app/templates/completed.js
@ -0,0 +1,31 @@
+const html = require('choo/html');
+const progress = require('./progress');
+const { fadeOut } = require('../utils');
+
+module.exports = function(state, emit) {
+  const div = html`
+  <div id="download" class="fadeIn">
+    <div id="download-progress">
+      <div id="dl-title" class="title">${state.translate(
+        'downloadFinish'
+      )}</div>
+      <div class="description"></div>
+      ${progress(1)}
+      <div class="upload">
+        <div class="progress-text"></div>
+      </div>
+    </div>
+    <a class="send-new" data-state="completed" href="/" onclick=${sendNew}>${state.translate(
+    'sendYourFilesLink'
+  )}</a>
+  </div>
+  `;
+
+  async function sendNew(e) {
+    e.preventDefault();
+    await fadeOut('download');
+    emit('pushState', '/');
+  }
+
+  return div;
+};
--- a/app/templates/download.js
+++ b/app/templates/download.js
@ -0,0 +1,28 @@
+const html = require('choo/html');
+const progress = require('./progress');
+const { bytes } = require('../utils');
+
+module.exports = function(state) {
+  const transfer = state.transfer;
+  const div = html`
+  <div id="download-progress" class="fadeIn">
+    <div id="dl-title" class="title">${state.translate(
+      'downloadingPageProgress',
+      {
+        filename: state.fileInfo.name,
+        size: bytes(state.fileInfo.size)
+      }
+    )}</div>
+    <div class="description">${state.translate('downloadingPageMessage')}</div>
+    ${progress(transfer.progressRatio)}
+    <div class="upload">
+      <div class="progress-text">${state.translate(
+        transfer.msg,
+        transfer.sizes
+      )}</div>
+    </div>
+  </div>
+  `;
+
+  return div;
+};
--- a/app/templates/error.js
+++ b/app/templates/error.js
@ -0,0 +1,12 @@
+const html = require('choo/html');
+const assets = require('../../common/assets');
+
+module.exports = function(state) {
+  return html`
+  <div id="upload-error">
+    <div class="title">${state.translate('errorPageHeader')}</div>
+    <img id="upload-error-img" data-l10n-id="errorAltText" src="${assets.get(
+      'illustration_error.svg'
+    )}"/>
+  </div>`;
+};
--- a/app/templates/file.js
+++ b/app/templates/file.js
@ -0,0 +1,84 @@
+const html = require('choo/html');
+const assets = require('../../common/assets');
+
+function timeLeft(milliseconds) {
+  const minutes = Math.floor(milliseconds / 1000 / 60);
+  const hours = Math.floor(minutes / 60);
+  const seconds = Math.floor(milliseconds / 1000 % 60);
+  if (hours >= 1) {
+    return `${hours}h ${minutes % 60}m`;
+  } else if (hours === 0) {
+    return `${minutes}m ${seconds}s`;
+  }
+  return null;
+}
+
+module.exports = function(file, state, emit) {
+  const ttl = file.expiresAt - Date.now();
+  const remaining = timeLeft(ttl) || state.translate('linkExpiredAlt');
+  const row = html`
+  <tr id="${file.id}">
+    <td>${file.name}</td>
+    <td>
+      <img onclick=${copyClick} src="${assets.get(
+    'copy-16.svg'
+  )}" class="icon-copy" title="${state.translate('copyUrlHover')}">
+      <span class="text-copied" hidden="true">${state.translate(
+        'copiedUrl'
+      )}</span>
+    </td>
+    <td>${remaining}</td>
+    <td>
+      <img onclick=${showPopup} src="${assets.get(
+    'close-16.svg'
+  )}" class="icon-delete" title="${state.translate('deleteButtonHover')}">
+      <div class="popup">
+        <div class="popuptext" onblur=${cancel} tabindex="-1">
+          <div class="popup-message">${state.translate('deletePopupText')}</div>
+          <div class="popup-action">
+            <span class="popup-no" onclick=${cancel}>${state.translate(
+    'deletePopupCancel'
+  )}</span>
+            <span class="popup-yes" onclick=${deleteFile}>${state.translate(
+    'deletePopupYes'
+  )}</span>
+          </div>
+        </div>
+      </div>
+    </td>
+  </tr>
+  `;
+
+  function copyClick(e) {
+    emit('copy', { url: file.url, location: 'upload-list' });
+    const icon = e.target;
+    const text = e.target.nextSibling;
+    icon.hidden = true;
+    text.hidden = false;
+    setTimeout(() => {
+      icon.hidden = false;
+      text.hidden = true;
+    }, 500);
+  }
+
+  function showPopup() {
+    const tr = document.getElementById(file.id);
+    const popup = tr.querySelector('.popuptext');
+    popup.classList.add('show');
+    popup.focus();
+  }
+
+  function cancel(e) {
+    e.stopPropagation();
+    const tr = document.getElementById(file.id);
+    const popup = tr.querySelector('.popuptext');
+    popup.classList.remove('show');
+  }
+
+  function deleteFile() {
+    emit('delete', { file, location: 'upload-list' });
+    emit('render');
+  }
+
+  return row;
+};
--- a/app/templates/fileList.js
+++ b/app/templates/fileList.js
@ -0,0 +1,28 @@
+const html = require('choo/html');
+const file = require('./file');
+
+module.exports = function(state, emit) {
+  let table = '';
+  if (state.storage.files.length) {
+    table = html`
+    <table id="uploaded-files">
+      <thead>
+        <tr>
+          <th id="uploaded-file">${state.translate('uploadedFile')}</th>
+          <th id="copy-file-list">${state.translate('copyFileList')}</th>
+          <th id="expiry-file-list">${state.translate('expiryFileList')}</th>
+          <th id="delete-file-list">${state.translate('deleteFileList')}</th>
+        </tr>
+      </thead>
+      <tbody>
+        ${state.storage.files.map(f => file(f, state, emit))}
+      </tbody>
+    </table>
+    `;
+  }
+  return html`
+  <div id="file-list">
+    ${table}
+  </div>
+  `;
+};
--- a/app/templates/legal.js
+++ b/app/templates/legal.js
@ -0,0 +1,38 @@
+const html = require('choo/html');
+
+function replaceLinks(str, urls) {
+  let i = -1;
+  const s = str.replace(/<a>([^<]+)<\/a>/g, (m, v) => {
+    i++;
+    return `<a href="${urls[i]}">${v}</a>`;
+  });
+  return [`<div class="description">${s}</div>`];
+}
+
+module.exports = function(state) {
+  const div = html`
+    <div id="page-one">
+      <div id="legal">
+        <div class="title">${state.translate('legalHeader')}</div>
+          ${html(
+            replaceLinks(state.translate('legalNoticeTestPilot'), [
+              'https://testpilot.firefox.com/terms',
+              'https://testpilot.firefox.com/privacy',
+              'https://testpilot.firefox.com/experiments/send'
+            ])
+          )}
+          ${html(
+            replaceLinks(state.translate('legalNoticeMozilla'), [
+              'https://www.mozilla.org/privacy/websites/',
+              'https://www.mozilla.org/about/legal/terms/mozilla/'
+            ])
+          )}
+      </div>
+    </div>
+  `;
+
+  if (state.layout) {
+    return state.layout(state, div);
+  }
+  return div;
+};
--- a/app/templates/notFound.js
+++ b/app/templates/notFound.js
@ -0,0 +1,27 @@
+const html = require('choo/html');
+const assets = require('../../common/assets');
+
+module.exports = function(state) {
+  const div = html`
+  <div id="page-one">
+    <div id="download">
+      <div class="title">${state.translate('expiredPageHeader')}</div>
+      <div class="share-window">
+        <img src="${assets.get(
+          'illustration_expired.svg'
+        )}" id="expired-img" data-l10n-id="linkExpiredAlt"/>
+      </div>
+      <div class="expired-description">${state.translate(
+        'uploadPageExplainer'
+      )}</div>
+      <a class="send-new" href="/" data-state="notfound">${state.translate(
+        'sendYourFilesLink'
+      )}</a>
+    </div>
+  </div>`;
+
+  if (state.layout) {
+    return state.layout(state, div);
+  }
+  return div;
+};
--- a/app/templates/preview.js
+++ b/app/templates/preview.js
@ -0,0 +1,65 @@
+const html = require('choo/html');
+const assets = require('../../common/assets');
+const notFound = require('./notFound');
+const { bytes } = require('../utils');
+
+function getFileFromDOM() {
+  const el = document.getElementById('dl-file');
+  if (!el) {
+    return null;
+  }
+  const data = el.dataset;
+  return {
+    name: data.name,
+    size: parseInt(data.size, 10),
+    ttl: parseInt(data.ttl, 10)
+  };
+}
+
+module.exports = function(state, emit) {
+  state.fileInfo = state.fileInfo || getFileFromDOM();
+  if (!state.fileInfo) {
+    return notFound(state, emit);
+  }
+  state.fileInfo.id = state.params.id;
+  state.fileInfo.key = state.params.key;
+  const fileInfo = state.fileInfo;
+  const size = bytes(fileInfo.size);
+  const div = html`
+  <div id="page-one">
+    <div id="download">
+      <div id="download-page-one">
+        <div class="title">
+          <span id="dl-file"
+            data-name="${fileInfo.name}"
+            data-size="${fileInfo.size}"
+            data-ttl="${fileInfo.ttl}">${state.translate('downloadFileName', {
+    filename: fileInfo.name
+  })}</span>
+        <span id="dl-filesize">${' ' +
+          state.translate('downloadFileSize', { size })}</span>
+        </div>
+        <div class="description">${state.translate('downloadMessage')}</div>
+        <img src="${assets.get(
+          'illustration_download.svg'
+        )}" id="download-img" alt="${state.translate('downloadAltText')}"/>
+        <div>
+          <button id="download-btn" class="btn" onclick=${download}>${state.translate(
+    'downloadButtonLabel'
+  )}</button>
+        </div>
+      </div>
+      <a class="send-new" href="/">${state.translate('sendYourFilesLink')}</a>
+    </div>
+  </div>
+  `;
+  function download(event) {
+    event.preventDefault();
+    emit('download', fileInfo);
+  }
+
+  if (state.layout) {
+    return state.layout(state, div);
+  }
+  return div;
+};
--- a/app/templates/progress.js
+++ b/app/templates/progress.js
@ -0,0 +1,21 @@
+const html = require('choo/html');
+
+const radius = 73;
+const oRadius = radius + 10;
+const oDiameter = oRadius * 2;
+const circumference = 2 * Math.PI * radius;
+
+module.exports = function(progressRatio) {
+  const dashOffset = (1 - progressRatio) * circumference;
+  const percent = Math.floor(progressRatio * 100);
+  const div = html`
+  <div class="progress-bar">
+    <svg id="progress" width="${oDiameter}" height="${oDiameter}" viewPort="0 0 ${oDiameter} ${oDiameter}" version="1.1">
+      <circle r="${radius}" cx="${oRadius}" cy="${oRadius}" fill="transparent"/>
+      <circle id="bar" r="${radius}" cx="${oRadius}" cy="${oRadius}" fill="transparent" transform="rotate(-90 ${oRadius} ${oRadius})" stroke-dasharray="${circumference}" stroke-dashoffset="${dashOffset}"/>
+      <text class="percentage" text-anchor="middle" x="50%" y="98"><tspan class="percent-number">${percent}</tspan><tspan class="percent-sign">%</tspan></text>
+    </svg>
+  </div>
+  `;
+  return div;
+};
--- a/app/templates/share.js
+++ b/app/templates/share.js
@ -0,0 +1,61 @@
+const html = require('choo/html');
+const assets = require('../../common/assets');
+const notFound = require('./notFound');
+const { allowedCopy, delay, fadeOut } = require('../utils');
+
+module.exports = function(state, emit) {
+  const file = state.storage.getFileById(state.params.id);
+  if (!file) {
+    return notFound(state, emit);
+  }
+  const div = html`
+  <div id="share-link" class="fadeIn">
+    <div class="title">${state.translate('uploadSuccessTimingHeader')}</div>
+    <div id="share-window">
+      <div id="copy-text">${state.translate('copyUrlFormLabelWithName', {
+        filename: file.name
+      })}</div>
+      <div id="copy">
+        <input id="link" type="url" value="${file.url}" readonly="true"/>
+        <button id="copy-btn" class="btn" onclick=${copyLink}>${state.translate(
+    'copyUrlFormButton'
+  )}</button>
+      </div>
+      <button id="delete-file" class="btn" onclick=${deleteFile}>${state.translate(
+    'deleteFileButton'
+  )}</button>
+      <a class="send-new" data-state="completed" href="/" onclick=${sendNew}>${state.translate(
+    'sendAnotherFileLink'
+  )}</a>
+    </div>
+  </div>
+  `;
+
+  async function sendNew(e) {
+    e.preventDefault();
+    await fadeOut('share-link');
+    emit('pushState', '/');
+  }
+
+  async function copyLink() {
+    if (allowedCopy()) {
+      emit('copy', { url: file.url, location: 'success-screen' });
+      const copyBtn = document.getElementById('copy-btn');
+      copyBtn.disabled = true;
+      copyBtn.replaceChild(
+        html`<img src="${assets.get('check-16.svg')}" class="icon-check">`,
+        copyBtn.firstChild
+      );
+      await delay(2000);
+      copyBtn.disabled = false;
+      copyBtn.textContent = state.translate('copyUrlFormButton');
+    }
+  }
+
+  async function deleteFile() {
+    emit('delete', { file, location: 'success-screen' });
+    await fadeOut('share-link');
+    emit('pushState', '/');
+  }
+  return div;
+};
--- a/app/templates/unsupported.js
+++ b/app/templates/unsupported.js
@ -0,0 +1,50 @@
+const html = require('choo/html');
+const assets = require('../../common/assets');
+
+module.exports = function(state) {
+  const msg =
+    state.params.reason === 'outdated'
+      ? html`
+    <div id="unsupported-browser">
+      <div class="title">${state.translate('notSupportedHeader')}</div>
+      <div class="description">${state.translate(
+        'notSupportedOutdatedDetail'
+      )}</div>
+      <a id="update-firefox" href="https://support.mozilla.org/kb/update-firefox-latest-version">
+        <img src="${assets.get(
+          'firefox_logo-only.svg'
+        )}" class="firefox-logo" alt="Firefox"/>
+        <div class="unsupported-button-text">${state.translate(
+          'updateFirefox'
+        )}</div>
+      </a>
+      <div class="unsupported-description">${state.translate(
+        'uploadPageExplainer'
+      )}</div>
+    </div>`
+      : html`
+    <div id="unsupported-browser">
+      <div class="title">${state.translate('notSupportedHeader')}</div>
+      <div class="description">${state.translate('notSupportedDetail')}</div>
+      <div class="description"><a href="https://github.com/mozilla/send/blob/master/docs/faq.md#why-is-my-browser-not-supported">${state.translate(
+        'notSupportedLink'
+      )}</a></div>
+      <a id="dl-firefox" href="https://www.mozilla.org/firefox/new/?scene=2">
+        <img src="${assets.get(
+          'firefox_logo-only.svg'
+        )}" class="firefox-logo" alt="Firefox"/>
+        <div class="unsupported-button-text">Firefox<br>
+          <span>${state.translate('downloadFirefoxButtonSub')}</span>
+        </div>
+      </a>
+      <div class="unsupported-description">${state.translate(
+        'uploadPageExplainer'
+      )}</div>
+    </div>`;
+  const div = html`<div id="page-one">${msg}</div>`;
+
+  if (state.layout) {
+    return state.layout(state, div);
+  }
+  return div;
+};
--- a/app/templates/upload.js
+++ b/app/templates/upload.js
@ -0,0 +1,38 @@
+const html = require('choo/html');
+const progress = require('./progress');
+const { bytes } = require('../utils');
+
+module.exports = function(state, emit) {
+  const transfer = state.transfer;
+
+  const div = html`
+  <div id="upload-progress" class="fadeIn">
+    <div class="title" id="upload-filename">${state.translate(
+      'uploadingPageProgress',
+      {
+        filename: transfer.file.name,
+        size: bytes(transfer.file.size)
+      }
+    )}</div>
+    <div class="description"></div>
+    ${progress(transfer.progressRatio)}
+    <div class="upload">
+      <div class="progress-text">${state.translate(
+        transfer.msg,
+        transfer.sizes
+      )}</div>
+      <button id="cancel-upload" onclick=${cancel}>${state.translate(
+    'uploadingPageCancel'
+  )}</button>
+    </div>
+  </div>
+  `;
+
+  function cancel() {
+    const btn = document.getElementById('cancel-upload');
+    btn.disabled = true;
+    btn.textContent = state.translate('uploadCancelNotification');
+    emit('cancel');
+  }
+  return div;
+};
--- a/app/templates/welcome.js
+++ b/app/templates/welcome.js
@ -0,0 +1,55 @@
+const html = require('choo/html');
+const assets = require('../../common/assets');
+const fileList = require('./fileList');
+const { fadeOut } = require('../utils');
+
+module.exports = function(state, emit) {
+  const div = html`
+  <div id="page-one" class="fadeIn">
+    <div class="title">${state.translate('uploadPageHeader')}</div>
+    <div class="description">
+      <div>${state.translate('uploadPageExplainer')}</div>
+      <a href="https://testpilot.firefox.com/experiments/send" class="link">${state.translate(
+        'uploadPageLearnMore'
+      )}</a>
+    </div>
+    <div class="upload-window" ondragover=${dragover} ondragleave=${dragleave}>
+      <div id="upload-img"><img src="${assets.get(
+        'upload.svg'
+      )}" title="${state.translate('uploadSvgAlt')}"/></div>
+      <div id="upload-text">${state.translate('uploadPageDropMessage')}</div>
+      <span id="file-size-msg"><em>${state.translate(
+        'uploadPageSizeMessage'
+      )}</em></span>
+      <form method="post" action="upload" enctype="multipart/form-data">
+        <label for="file-upload" id="browse" class="btn">${state.translate(
+          'uploadPageBrowseButton1'
+        )}</label>
+        <input id="file-upload" type="file" name="fileUploaded" onchange=${upload} />
+      </form>
+    </div>
+    ${fileList(state, emit)}
+  </div>
+  `;
+
+  function dragover(event) {
+    event.target.classList.add('ondrag');
+  }
+
+  function dragleave(event) {
+    event.target.classList.remove('ondrag');
+  }
+
+  async function upload(event) {
+    event.preventDefault();
+    const target = event.target;
+    const file = target.files[0];
+    await fadeOut('page-one');
+    emit('upload', { file, type: 'click' });
+  }
+
+  if (state.layout) {
+    return state.layout(state, div);
+  }
+  return div;
+};
--- a/frontend/src/utils.js
+++ b/frontend/src/utils.js
@ -35,47 +35,39 @@ function notify(str) {
  */
 }

-function gcmCompliant() {
+function loadShim(polyfill) {
+  return new Promise((resolve, reject) => {
+    const shim = document.createElement('script');
+    shim.src = polyfill;
+    shim.addEventListener('load', () => resolve(true));
+    shim.addEventListener('error', () => resolve(false));
+    document.head.appendChild(shim);
+  });
+}
+
+async function canHasSend(polyfill) {
  try {
-    return window.crypto.subtle
-      .generateKey(
-        {
-          name: 'AES-GCM',
-          length: 128
-        },
-        true,
-        ['encrypt', 'decrypt']
-      )
-      .then(key => {
-        return window.crypto.subtle
-          .encrypt(
-            {
-              name: 'AES-GCM',
-              iv: window.crypto.getRandomValues(new Uint8Array(12)),
-              additionalData: window.crypto.getRandomValues(new Uint8Array(6)),
-              tagLength: 128
-            },
-            key,
-            new ArrayBuffer(8)
-          )
-          .then(() => {
-            return Promise.resolve();
-          });
-      })
-      .catch(err => {
-        return loadShim();
-      });
+    const key = await window.crypto.subtle.generateKey(
+      {
+        name: 'AES-GCM',
+        length: 128
+      },
+      true,
+      ['encrypt', 'decrypt']
+    );
+
+    await window.crypto.subtle.encrypt(
+      {
+        name: 'AES-GCM',
+        iv: window.crypto.getRandomValues(new Uint8Array(12)),
+        tagLength: 128
+      },
+      key,
+      new ArrayBuffer(8)
+    );
+    return true;
  } catch (err) {
-    return loadShim();
-  }
-  function loadShim() {
-    return new Promise((resolve, reject) => {
-      const shim = document.createElement('script');
-      shim.src = '/cryptofill.js';
-      shim.addEventListener('load', resolve);
-      shim.addEventListener('error', reject);
-      document.head.appendChild(shim);
-    });
+    return loadShim(polyfill);
  }
 }

@ -107,7 +99,8 @@ function copyToClipboard(str) {
 const LOCALIZE_NUMBERS = !!(
  typeof Intl === 'object' &&
  Intl &&
-  typeof Intl.NumberFormat === 'function'
+  typeof Intl.NumberFormat === 'function' &&
+  typeof navigator === 'object'
 );

 const UNITS = ['B', 'kB', 'MB', 'GB'];
@ -134,9 +127,22 @@ function allowedCopy() {
  return support ? document.queryCommandSupported('copy') : false;
 }

+function delay(delay = 100) {
+  return new Promise(resolve => setTimeout(resolve, delay));
+}
+
+function fadeOut(id) {
+  const classes = document.getElementById(id).classList;
+  classes.remove('fadeIn');
+  classes.add('fadeOut');
+  return delay(300);
+}
+
 const ONE_DAY_IN_MS = 86400000;

-export {
+module.exports = {
+  fadeOut,
+  delay,
  allowedCopy,
  bytes,
  percent,
@ -144,7 +150,7 @@ export {
  arrayToHex,
  hexToArray,
  notify,
-  gcmCompliant,
+  canHasSend,
  isFile,
  ONE_DAY_IN_MS
 };
--- a/public/resources/check-16.svg
+++ b/public/resources/check-16.svg
--- a/public/resources/close-16.svg
+++ b/public/resources/close-16.svg
@ -1 +1 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 16 16"><path fill="#4A4A4A" d="M9.414 8l5.293-5.293a1 1 0 0 0-1.414-1.414L8 6.586 2.707 1.293a1 1 0 0 0-1.414 1.414L6.586 8l-5.293 5.293a1 1 0 1 0 1.414 1.414L8 9.414l5.293 5.293a1 1 0 0 0 1.414-1.414z"/></svg>
+<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 16 16"><path fill="#4A4A4A" d="M9.414 8l5.293-5.293a1 1 0 0 0-1.414-1.414L8 6.586 2.707 1.293a1 1 0 0 0-1.414 1.414L6.586 8l-5.293 5.293a1 1 0 1 0 1.414 1.414L8 9.414l5.293 5.293a1 1 0 0 0 1.414-1.414z"/></svg>
--- a/public/resources/copy-16.svg
+++ b/public/resources/copy-16.svg
--- a/assets/cryptofill.js
+++ b/assets/cryptofill.js
--- a/public/resources/favicon-32x32.png
+++ b/public/resources/favicon-32x32.png
--- a/public/resources/feedback.svg
+++ b/public/resources/feedback.svg
--- a/public/resources/firefox_logo-only.svg
+++ b/public/resources/firefox_logo-only.svg
--- a/public/resources/github-icon.svg
+++ b/public/resources/github-icon.svg
--- a/public/resources/illustration_download.svg
+++ b/public/resources/illustration_download.svg
--- a/public/resources/illustration_error.svg
+++ b/public/resources/illustration_error.svg
--- a/public/resources/illustration_expired.svg
+++ b/public/resources/illustration_expired.svg
--- a/frontend/src/main.css
+++ b/frontend/src/main.css
@ -1,6 +1,6 @@
 /***     index.html     ***/
 html {
-  background: url('../../public/resources/send_bg.svg');
+  background: url('./send_bg.svg');
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'segoe ui',
    'helvetica neue', helvetica, ubuntu, roboto, noto, arial, sans-serif;
  font-weight: 200;
@ -89,7 +89,7 @@ body {

 .feedback {
  background-color: #0297f8;
-  background-image: url('../../public/resources/feedback.svg');
+  background-image: url('./feedback.svg');
  background-position: 2px 4px;
  background-repeat: no-repeat;
  background-size: 18px;
@ -154,6 +154,36 @@ a {

 /**   page-one    **/

+.fadeOut {
+  opacity: 0;
+  animation: fadeout 200ms linear;
+}
+
+@keyframes fadeout {
+  0% {
+    opacity: 1;
+  }
+
+  100% {
+    opacity: 0;
+  }
+}
+
+.fadeIn {
+  opacity: 1;
+  animation: fadein 200ms linear;
+}
+
+@keyframes fadein {
+  0% {
+    opacity: 0;
+  }
+
+  100% {
+    opacity: 1;
+  }
+}
+
 .title {
  font-size: 33px;
  line-height: 40px;
@ -431,12 +461,8 @@ tbody {
 }

 .percentage {
-  position: absolute;
  letter-spacing: -0.78px;
  font-family: 'Segoe UI', 'SF Pro Text', sans-serif;
-  top: 50px;
-  left: 50%;
-  transform: translateX(-45%);
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
@ -449,7 +475,8 @@ tbody {

 .percent-sign {
  font-size: 28.8px;
-  color: rgb(104, 104, 104);
+  stroke: none;
+  fill: #686868;
 }

 .upload {
@ -471,10 +498,18 @@ tbody {

 #cancel-upload {
  color: #d70022;
+  background: #fff;
+  font-size: 15px;
+  border: 0;
  cursor: pointer;
  text-decoration: underline;
 }

+#cancel-upload:disabled {
+  text-decoration: none;
+  cursor: auto;
+}
+
 /**   share-link    **/
 #share-window {
  margin: 0 auto;
@ -624,7 +659,7 @@ tbody {
 #update-firefox {
  margin-bottom: 181px;
  height: 80px;
-  background: #12bc00;
+  background: #98e02b;
  border-radius: 3px;
  cursor: pointer;
  border: 0;
--- a/public/resources/mozilla-logo.svg
+++ b/public/resources/mozilla-logo.svg
--- a/public/resources/send-fb.jpg
+++ b/public/resources/send-fb.jpg
--- a/public/resources/send-twitter.jpg
+++ b/public/resources/send-twitter.jpg
--- a/public/resources/send_bg.svg
+++ b/public/resources/send_bg.svg
--- a/public/resources/send_logo.svg
+++ b/public/resources/send_logo.svg
--- a/public/resources/twitter-icon.svg
+++ b/public/resources/twitter-icon.svg
--- a/public/resources/upload.svg
+++ b/public/resources/upload.svg
--- a/build/fluent_loader.js
+++ b/build/fluent_loader.js
@ -0,0 +1,38 @@
+const { MessageContext } = require('fluent');
+
+function toJSON(map) {
+  return JSON.stringify(Array.from(map));
+}
+
+module.exports = function(source) {
+  const localeExp = this.options.locale || /([^/]+)\/[^/]+\.ftl$/;
+  const result = localeExp.exec(this.resourcePath);
+  const locale = result && result[1];
+  // pre-parse the ftl
+  const context = new MessageContext(locale);
+  context.addMessages(source);
+  if (!locale) {
+    throw new Error(`couldn't find locale in: ${this.resourcePath}`);
+  }
+  return `
+module.exports = \`
+if (typeof window === 'undefined') {
+  var fluent = require('fluent');
+}
+var ctx = new fluent.MessageContext('${locale}', {useIsolating: false});
+ctx._messages = new Map(${toJSON(context._messages)});
+function translate(id, data) {
+  var msg = ctx.getMessage(id);
+  if (typeof(msg) !== 'string' && !msg.val && msg.attrs) {
+    msg = msg.attrs.title || msg.attrs.alt
+  }
+  return ctx.format(msg, data);
+}
+if (typeof window === 'undefined') {
+  module.exports = translate;
+}
+else {
+  window.translate = translate;
+}
+\``;
+};
--- a/build/generate_asset_map.js
+++ b/build/generate_asset_map.js
@ -0,0 +1,19 @@
+const fs = require('fs');
+const path = require('path');
+
+function kv(f) {
+  return `"${f}": require('../assets/${f}')`;
+}
+
+module.exports = function() {
+  const files = fs.readdirSync(path.join(__dirname, '..', 'assets'));
+  const code = `module.exports = {
+    "package.json": require('../package.json'),
+    ${files.map(kv).join(',\n')}
+  };`;
+  return {
+    code,
+    dependencies: files.map(f => require.resolve('../assets/' + f)),
+    cacheable: false
+  };
+};
--- a/build/generate_l10n_map.js
+++ b/build/generate_l10n_map.js
@ -0,0 +1,22 @@
+const fs = require('fs');
+const path = require('path');
+
+function kv(d) {
+  return `"${d}": require('../public/locales/${d}/send.ftl')`;
+}
+
+module.exports = function() {
+  const dirs = fs.readdirSync(path.join(__dirname, '..', 'public', 'locales'));
+  const code = `
+  module.exports = {
+    translate: function (id, data) { return window.translate(id, data) },
+    ${dirs.map(kv).join(',\n')}
+  };`;
+  return {
+    code,
+    dependencies: dirs.map(d =>
+      require.resolve(`../public/locales/${d}/send.ftl`)
+    ),
+    cacheable: false
+  };
+};
--- a/build/package_json_loader.js
+++ b/build/package_json_loader.js
@ -0,0 +1,11 @@
+const commit = require('git-rev-sync').short();
+
+module.exports = function(source) {
+  const pkg = JSON.parse(source);
+  const version = {
+    commit,
+    source: pkg.homepage,
+    version: process.env.CIRCLE_TAG || `v${pkg.version}`
+  };
+  return `module.exports = '${JSON.stringify(version)}'`;
+};
--- a/common/assets.js
+++ b/common/assets.js
@ -0,0 +1,32 @@
+const genmap = require('../build/generate_asset_map');
+const isServer = typeof genmap === 'function';
+const prefix = isServer ? '/' : '';
+let manifest = {};
+try {
+  //eslint-disable-next-line node/no-missing-require
+  manifest = require('../dist/manifest.json');
+} catch (e) {
+  // use middleware
+}
+
+const assets = isServer ? manifest : genmap;
+
+function getAsset(name) {
+  return prefix + assets[name];
+}
+
+const instance = {
+  get: getAsset,
+  setMiddleware: function(middleware) {
+    if (middleware) {
+      instance.get = function getAssetWithMiddleware(name) {
+        const f = middleware.fileSystem.readFileSync(
+          middleware.getFilenameFromUrl('/manifest.json')
+        );
+        return prefix + JSON.parse(f)[name];
+      };
+    }
+  }
+};
+
+module.exports = instance;
--- a/common/locales.js
+++ b/common/locales.js
@ -0,0 +1,51 @@
+const gen = require('../build/generate_l10n_map');
+
+const isServer = typeof gen === 'function';
+const prefix = isServer ? '/' : '';
+let manifest = {};
+try {
+  //eslint-disable-next-line node/no-missing-require
+  manifest = require('../dist/manifest.json');
+} catch (e) {
+  // use middleware
+}
+
+const locales = isServer ? manifest : gen;
+
+function getLocale(name) {
+  return prefix + locales[`public/locales/${name}/send.ftl`];
+}
+
+function serverTranslator(name) {
+  return require(`../dist/${locales[`public/locales/${name}/send.ftl`]}`);
+}
+
+function browserTranslator() {
+  return locales.translate;
+}
+
+const translator = isServer ? serverTranslator : browserTranslator;
+
+const instance = {
+  get: getLocale,
+  getTranslator: translator,
+  setMiddleware: function(middleware) {
+    if (middleware) {
+      const _eval = require('require-from-string');
+      instance.get = function getLocaleWithMiddleware(name) {
+        const f = middleware.fileSystem.readFileSync(
+          middleware.getFilenameFromUrl('/manifest.json')
+        );
+        return prefix + JSON.parse(f)[`public/locales/${name}/send.ftl`];
+      };
+      instance.getTranslator = function(name) {
+        const f = middleware.fileSystem.readFileSync(
+          middleware.getFilenameFromUrl(instance.get(name))
+        );
+        return _eval(f.toString());
+      };
+    }
+  }
+};
+
+module.exports = instance;
--- a/frontend/src/common.js
+++ b/frontend/src/common.js
@ -1,20 +0,0 @@
-import Raven from 'raven-js';
-import { unsupported } from './metrics';
-
-if (navigator.doNotTrack !== '1' && window.RAVEN_CONFIG) {
-  Raven.config(window.SENTRY_ID, window.RAVEN_CONFIG).install();
-}
-
-const ua = navigator.userAgent.toLowerCase();
-if (
-  ua.indexOf('firefox') > -1 &&
-  parseInt(ua.match(/firefox\/*([^\n\r]*)\./)[1], 10) <= 49
-) {
-  unsupported({
-    err: new Error('Firefox is outdated.')
-  }).then(() => {
-    location.replace('/unsupported/outdated');
-  });
-}
-
-export { Raven };
--- a/frontend/src/download.js
+++ b/frontend/src/download.js
@ -1,119 +0,0 @@
-import { Raven } from './common';
-import FileReceiver from './fileReceiver';
-import { bytes, notify, gcmCompliant } from './utils';
-import Storage from './storage';
-import * as links from './links';
-import * as metrics from './metrics';
-import * as progress from './progress';
-
-const storage = new Storage();
-function onUnload(size) {
-  metrics.cancelledDownload({ size });
-}
-
-async function download() {
-  const downloadBtn = document.getElementById('download-btn');
-  const downloadPanel = document.getElementById('download-page-one');
-  const progressPanel = document.getElementById('download-progress');
-  const file = document.getElementById('dl-file');
-  const size = Number(file.getAttribute('data-size'));
-  const ttl = Number(file.getAttribute('data-ttl'));
-  const unloadHandler = onUnload.bind(null, size);
-  const startTime = Date.now();
-  const fileReceiver = new FileReceiver(
-    '/assets' + location.pathname.slice(0, -1),
-    location.hash.slice(1)
-  );
-
-  downloadBtn.disabled = true;
-  downloadPanel.hidden = true;
-  progressPanel.hidden = false;
-  metrics.startedDownload({ size, ttl });
-  links.setOpenInNewTab(true);
-  window.addEventListener('unload', unloadHandler);
-
-  fileReceiver.on('progress', data => {
-    progress.setProgress({ complete: data[0], total: data[1] });
-  });
-
-  let downloadEnd;
-  fileReceiver.on('decrypting', () => {
-    downloadEnd = Date.now();
-    window.removeEventListener('unload', unloadHandler);
-    fileReceiver.removeAllListeners('progress');
-    document.l10n.formatValue('decryptingFile').then(progress.setText);
-  });
-
-  try {
-    const file = await fileReceiver.download();
-    const endTime = Date.now();
-    const time = endTime - startTime;
-    const downloadTime = endTime - downloadEnd;
-    const speed = size / (downloadTime / 1000);
-
-    links.setOpenInNewTab(false);
-    storage.totalDownloads += 1;
-    metrics.completedDownload({ size, time, speed });
-    progress.setText(' ');
-    document.l10n
-      .formatValues('downloadNotification', 'downloadFinish')
-      .then(translated => {
-        notify(translated[0]);
-        document.getElementById('dl-title').textContent = translated[1];
-        document.querySelector('#download-progress .description').textContent =
-          ' ';
-      });
-    const dataView = new DataView(file.plaintext);
-    const blob = new Blob([dataView], { type: file.type });
-    const downloadUrl = URL.createObjectURL(blob);
-
-    const a = document.createElement('a');
-    a.href = downloadUrl;
-    if (window.navigator.msSaveBlob) {
-      window.navigator.msSaveBlob(blob, file.name);
-      return;
-    }
-    a.download = file.name;
-    document.body.appendChild(a);
-    a.click();
-    URL.revokeObjectURL(downloadUrl);
-  } catch (err) {
-    metrics.stoppedDownload({ size, err });
-
-    if (err.message === 'notfound') {
-      location.reload();
-    } else {
-      progressPanel.hidden = true;
-      downloadPanel.hidden = true;
-      document.getElementById('upload-error').hidden = false;
-    }
-    Raven.captureException(err);
-  }
-}
-
-document.addEventListener('DOMContentLoaded', function() {
-  const file = document.getElementById('dl-file');
-  const filename = file.getAttribute('data-filename');
-  const b = Number(file.getAttribute('data-size'));
-  const size = bytes(b);
-  document.l10n.formatValue('downloadFileSize', { size }).then(str => {
-    document.getElementById('dl-filesize').textContent = str;
-  });
-  document.l10n
-    .formatValue('downloadingPageProgress', { filename, size })
-    .then(str => {
-      document.getElementById('dl-title').textContent = str;
-    });
-
-  gcmCompliant()
-    .then(() => {
-      document
-        .getElementById('download-btn')
-        .addEventListener('click', download);
-    })
-    .catch(err => {
-      metrics.unsupported({ err }).then(() => {
-        location.replace('/unsupported/gcm');
-      });
-    });
-});
--- a/frontend/src/fileList.js
+++ b/frontend/src/fileList.js
@ -1,163 +0,0 @@
-import FileSender from './fileSender';
-import Storage from './storage';
-import * as metrics from './metrics';
-import { allowedCopy, copyToClipboard, ONE_DAY_IN_MS } from './utils';
-import bel from 'bel';
-import copyImg from '../../public/resources/copy-16.svg';
-import closeImg from '../../public/resources/close-16.svg';
-
-const HOUR = 1000 * 60 * 60;
-const storage = new Storage();
-let fileList = null;
-
-document.addEventListener('DOMContentLoaded', function() {
-  fileList = document.getElementById('file-list');
-  toggleHeader();
-  Promise.all(
-    storage.files.map(file => {
-      const id = file.fileId;
-      return checkExistence(id).then(exists => {
-        if (exists) {
-          addFile(storage.getFileById(id));
-        } else {
-          storage.remove(id);
-        }
-      });
-    })
-  )
-    .catch(err => console.error(err))
-    .then(toggleHeader);
-});
-
-function toggleHeader() {
-  fileList.hidden = storage.files.length === 0;
-}
-
-function timeLeft(milliseconds) {
-  const minutes = Math.floor(milliseconds / 1000 / 60);
-  const hours = Math.floor(minutes / 60);
-  const seconds = Math.floor(milliseconds / 1000 % 60);
-  if (hours >= 1) {
-    return `${hours}h ${minutes % 60}m`;
-  } else if (hours === 0) {
-    return `${minutes}m ${seconds}s`;
-  }
-  return 'Expired';
-}
-
-function addFile(file) {
-  if (!file) {
-    return;
-  }
-  file.creationDate = new Date(file.creationDate);
-  const url = `${file.url}#${file.secretKey}`;
-  const future = new Date();
-  future.setTime(file.creationDate.getTime() + file.expiry);
-  const countdown = future.getTime() - Date.now();
-
-  const row = bel`
-  <tr>
-    <td>${file.name}</td>
-    <td>
-      <span class="icon-docs" data-l10n-id="copyUrlHover"></span>
-      <img onclick=${copyClick} src="${copyImg}" class="icon-copy" data-l10n-id="copyUrlHover">
-      <span data-l10n-id="copiedUrl" class="text-copied" hidden="true"></span>
-    </td>
-    <td>${timeLeft(countdown)}</td>
-    <td>
-      <span class="icon-cancel-1" data-l10n-id="deleteButtonHover" title="Delete"></span>
-      <img onclick=${showPopup} src="${closeImg}" class="icon-delete" data-l10n-id="deleteButtonHover" title="Delete">
-      <div class="popup">
-        <div class="popuptext" onclick=${stopProp} onblur=${cancel} tabindex="-1">
-          <div class="popup-message" data-l10n-id="deletePopupText"></div>
-          <div class="popup-action">
-            <span class="popup-no" onclick=${cancel} data-l10n-id="deletePopupCancel"></span>
-            <span class="popup-yes" onclick=${deleteFile} data-l10n-id="deletePopupYes"></span>
-          </div>
-        </div>
-      </div>
-    </td>
-  </tr>
-  `;
-  const popup = row.querySelector('.popuptext');
-  const timeCol = row.querySelectorAll('td')[2];
-  if (!allowedCopy()) {
-    row.querySelector('.icon-copy').disabled = true;
-  }
-
-  fileList.querySelector('tbody').appendChild(row);
-  toggleHeader();
-  poll();
-
-  function copyClick(e) {
-    metrics.copiedLink({ location: 'upload-list' });
-    copyToClipboard(url);
-    const icon = e.target;
-    const text = e.target.nextSibling;
-    icon.hidden = true;
-    text.hidden = false;
-    setTimeout(() => {
-      icon.hidden = false;
-      text.hidden = true;
-    }, 500);
-  }
-
-  function poll() {
-    const countdown = future.getTime() - Date.now();
-    if (countdown <= 0) {
-      storage.remove(file.fileId);
-      row.parentNode.removeChild(row);
-      toggleHeader();
-    }
-    timeCol.textContent = timeLeft(countdown);
-    setTimeout(poll, countdown >= HOUR ? 60000 : 1000);
-  }
-
-  function deleteFile() {
-    FileSender.delete(file.fileId, file.deleteToken);
-    const ttl = ONE_DAY_IN_MS - (Date.now() - file.creationDate.getTime());
-    metrics.deletedUpload({
-      size: file.size,
-      time: file.totalTime,
-      speed: file.uploadSpeed,
-      type: file.typeOfUpload,
-      location: 'upload-list',
-      ttl
-    });
-    row.parentNode.removeChild(row);
-    storage.remove(file.fileId);
-    toggleHeader();
-  }
-
-  function showPopup() {
-    popup.classList.add('show');
-    popup.focus();
-  }
-
-  function cancel(e) {
-    e.stopPropagation();
-    popup.classList.remove('show');
-  }
-
-  function stopProp(e) {
-    e.stopPropagation();
-  }
-}
-
-async function checkExistence(id) {
-  return new Promise((resolve, reject) => {
-    const xhr = new XMLHttpRequest();
-    xhr.onreadystatechange = () => {
-      if (xhr.readyState === XMLHttpRequest.HEADERS_RECEIVED) {
-        resolve(xhr.status === 200);
-      }
-    };
-    xhr.onerror = reject;
-    xhr.ontimeout = reject;
-    xhr.open('get', '/exists/' + id);
-    xhr.timeout = 2000;
-    xhr.send();
-  });
-}
-
-export { addFile };
--- a/frontend/src/links.js
+++ b/frontend/src/links.js
@ -1,21 +0,0 @@
-let links = [];
-
-document.addEventListener('DOMContentLoaded', function() {
-  links = Array.from(document.querySelectorAll('a:not([target])'));
-});
-
-function setOpenInNewTab(bool) {
-  if (bool === false) {
-    links.forEach(l => {
-      l.removeAttribute('target');
-      l.removeAttribute('rel');
-    });
-  } else {
-    links.forEach(l => {
-      l.setAttribute('target', '_blank');
-      l.setAttribute('rel', 'noopener noreferrer');
-    });
-  }
-}
-
-export { setOpenInNewTab };
--- a/frontend/src/progress.js
+++ b/frontend/src/progress.js
@ -1,47 +0,0 @@
-import { bytes, percent } from './utils';
-
-let percentText = null;
-let text = null;
-let title = null;
-let bar = null;
-let updateTitle = false;
-
-const radius = 73;
-const circumference = 2 * Math.PI * radius;
-
-document.addEventListener('DOMContentLoaded', function() {
-  percentText = document.querySelector('.percent-number');
-  text = document.querySelector('.progress-text');
-  bar = document.getElementById('bar');
-  title = document.querySelector('title');
-});
-
-document.addEventListener('blur', function() {
-  updateTitle = true;
-});
-
-document.addEventListener('focus', function() {
-  updateTitle = false;
-  return title && (title.textContent = 'Firefox Send');
-});
-
-function setProgress(params) {
-  const ratio = params.complete / params.total;
-  bar.setAttribute('stroke-dashoffset', (1 - ratio) * circumference);
-  percentText.textContent = Math.floor(ratio * 100);
-  if (updateTitle) {
-    title.textContent = percent(ratio);
-  }
-  document.l10n
-    .formatValue('fileSizeProgress', {
-      partialSize: bytes(params.complete),
-      totalSize: bytes(params.total)
-    })
-    .then(setText);
-}
-
-function setText(str) {
-  text.textContent = str;
-}
-
-export { setProgress, setText };
--- a/frontend/src/upload.js
+++ b/frontend/src/upload.js
@ -1,257 +0,0 @@
-/* global MAXFILESIZE EXPIRE_SECONDS */
-import { Raven } from './common';
-import FileSender from './fileSender';
-import {
-  allowedCopy,
-  bytes,
-  copyToClipboard,
-  notify,
-  gcmCompliant,
-  ONE_DAY_IN_MS
-} from './utils';
-import Storage from './storage';
-import * as metrics from './metrics';
-import * as progress from './progress';
-import * as fileList from './fileList';
-import checkImg from '../../public/resources/check-16.svg';
-
-const storage = new Storage();
-
-async function upload(event) {
-  event.preventDefault();
-  const pageOne = document.getElementById('page-one');
-  const link = document.getElementById('link');
-  const uploadWindow = document.querySelector('.upload-window');
-  const uploadError = document.getElementById('upload-error');
-  const uploadProgress = document.getElementById('upload-progress');
-  const clickOrDrop = event.type === 'drop' ? 'drop' : 'click';
-
-  // don't allow upload if not on upload page
-  if (pageOne.hidden) {
-    return;
-  }
-
-  storage.totalUploads += 1;
-
-  let file = '';
-  if (clickOrDrop === 'drop') {
-    if (!event.dataTransfer.files[0]) {
-      uploadWindow.classList.remove('ondrag');
-      return;
-    }
-    if (
-      event.dataTransfer.files.length > 1 ||
-      event.dataTransfer.files[0].size === 0
-    ) {
-      uploadWindow.classList.remove('ondrag');
-      document.l10n.formatValue('uploadPageMultipleFilesAlert').then(str => {
-        alert(str);
-      });
-      return;
-    }
-    file = event.dataTransfer.files[0];
-  } else {
-    file = event.target.files[0];
-  }
-
-  if (file.size > MAXFILESIZE) {
-    return document.l10n
-      .formatValue('fileTooBig', { size: bytes(MAXFILESIZE) })
-      .then(alert);
-  }
-
-  pageOne.hidden = true;
-  uploadError.hidden = true;
-  uploadProgress.hidden = false;
-  document.l10n
-    .formatValue('uploadingPageProgress', {
-      size: bytes(file.size),
-      filename: file.name
-    })
-    .then(str => {
-      document.getElementById('upload-filename').textContent = str;
-    });
-  document.l10n.formatValue('importingFile').then(progress.setText);
-  //don't allow drag and drop when not on page-one
-  document.body.removeEventListener('drop', upload);
-
-  const fileSender = new FileSender(file);
-  document.getElementById('cancel-upload').addEventListener('click', () => {
-    fileSender.cancel();
-    metrics.cancelledUpload({
-      size: file.size,
-      type: clickOrDrop
-    });
-    location.reload();
-  });
-
-  let uploadStart;
-  fileSender.on('progress', data => {
-    uploadStart = uploadStart || Date.now();
-    progress.setProgress({
-      complete: data[0],
-      total: data[1]
-    });
-  });
-
-  fileSender.on('encrypting', () => {
-    document.l10n.formatValue('encryptingFile').then(progress.setText);
-  });
-
-  let t;
-  const startTime = Date.now();
-  metrics.startedUpload({
-    size: file.size,
-    type: clickOrDrop
-  });
-  // For large files we need to give the ui a tick to breathe and update
-  // before we kick off the FileSender
-  setTimeout(() => {
-    fileSender
-      .upload()
-      .then(info => {
-        const endTime = Date.now();
-        const time = endTime - startTime;
-        const uploadTime = endTime - uploadStart;
-        const speed = file.size / (uploadTime / 1000);
-        const expiration = EXPIRE_SECONDS * 1000;
-
-        link.setAttribute('value', `${info.url}#${info.secretKey}`);
-
-        const copyText = document.getElementById('copy-text');
-        copyText.setAttribute(
-          'data-l10n-args',
-          JSON.stringify({ filename: file.name })
-        );
-        copyText.setAttribute('data-l10n-id', 'copyUrlFormLabelWithName');
-
-        metrics.completedUpload({
-          size: file.size,
-          time,
-          speed,
-          type: clickOrDrop
-        });
-
-        const fileData = {
-          name: file.name,
-          size: file.size,
-          fileId: info.fileId,
-          url: info.url,
-          secretKey: info.secretKey,
-          deleteToken: info.deleteToken,
-          creationDate: new Date(),
-          expiry: expiration,
-          totalTime: time,
-          typeOfUpload: clickOrDrop,
-          uploadSpeed: speed
-        };
-
-        document.getElementById('delete-file').addEventListener('click', () => {
-          FileSender.delete(fileData.fileId, fileData.deleteToken).then(() => {
-            const ttl =
-              ONE_DAY_IN_MS - (Date.now() - fileData.creationDate.getTime());
-            metrics
-              .deletedUpload({
-                size: fileData.size,
-                time: fileData.totalTime,
-                speed: fileData.uploadSpeed,
-                type: fileData.typeOfUpload,
-                location: 'success-screen',
-                ttl
-              })
-              .then(() => {
-                storage.remove(fileData.fileId);
-                location.reload();
-              });
-          });
-        });
-
-        storage.addFile(info.fileId, fileData);
-
-        pageOne.hidden = true;
-        uploadProgress.hidden = true;
-        uploadError.hidden = true;
-        document.getElementById('share-link').hidden = false;
-
-        fileList.addFile(fileData);
-        document.l10n.formatValue('notifyUploadDone').then(str => {
-          notify(str);
-        });
-      })
-      .catch(err => {
-        // err is 0 when coming from a cancel upload event
-        if (err === 0) {
-          return;
-        }
-        // only show error page when the error is anything other than user cancelling the upload
-        Raven.captureException(err);
-        pageOne.hidden = true;
-        uploadProgress.hidden = true;
-        uploadError.hidden = false;
-        window.clearTimeout(t);
-
-        metrics.stoppedUpload({
-          size: file.size,
-          type: clickOrDrop,
-          err
-        });
-      });
-  }, 10);
-}
-
-document.addEventListener('DOMContentLoaded', function() {
-  gcmCompliant()
-    .then(function() {
-      const pageOne = document.getElementById('page-one');
-      const copyBtn = document.getElementById('copy-btn');
-      const link = document.getElementById('link');
-      const uploadWindow = document.querySelector('.upload-window');
-
-      pageOne.hidden = false;
-      document.getElementById('file-upload').addEventListener('change', upload);
-
-      document.body.addEventListener('dragover', allowDrop);
-      document.body.addEventListener('drop', upload);
-
-      // reset copy button
-      copyBtn.disabled = !allowedCopy();
-      copyBtn.setAttribute('data-l10n-id', 'copyUrlFormButton');
-
-      link.disabled = false;
-
-      // copy link to clipboard
-      copyBtn.addEventListener('click', () => {
-        if (allowedCopy() && copyToClipboard(link.getAttribute('value'))) {
-          metrics.copiedLink({ location: 'success-screen' });
-
-          //disable button for 3s
-          copyBtn.disabled = true;
-          link.disabled = true;
-          copyBtn.innerHTML = `<img src="${checkImg}" class="icon-check"></img>`;
-          setTimeout(() => {
-            copyBtn.disabled = !allowedCopy();
-            copyBtn.setAttribute('data-l10n-id', 'copyUrlFormButton');
-            link.disabled = false;
-          }, 3000);
-        }
-      });
-
-      uploadWindow.addEventListener('dragover', () =>
-        uploadWindow.classList.add('ondrag')
-      );
-      uploadWindow.addEventListener('dragleave', () =>
-        uploadWindow.classList.remove('ondrag')
-      );
-
-      // on file upload by browse or drag & drop
-
-      function allowDrop(ev) {
-        ev.preventDefault();
-      }
-    })
-    .catch(err => {
-      metrics.unsupported({ err }).then(() => {
-        location.replace('/unsupported/gcm');
-      });
-    });
-});
--- a/package-lock.json
+++ b/package-lock.json
--- a/package.json
+++ b/package.json
@ -3,73 +3,109 @@
  "description": "File Sharing Experiment",
  "version": "1.1.2",
  "author": "Mozilla (https://mozilla.org)",
-  "dependencies": {
-    "aws-sdk": "^2.98.0",
-    "body-parser": "^1.17.2",
-    "connect-busboy": "0.0.2",
-    "convict": "^3.0.0",
-    "express": "^4.15.3",
-    "express-handlebars": "^3.0.0",
-    "helmet": "^3.8.0",
-    "mozlog": "^2.1.1",
-    "raven": "^2.1.0",
-    "redis": "^2.8.0"
+  "repository": "mozilla/send",
+  "homepage": "https://github.com/mozilla/send/",
+  "license": "MPL-2.0",
+  "private": true,
+  "scripts": {
+    "precommit": "lint-staged",
+    "clean": "rimraf dist",
+    "build": "npm run clean && webpack -p",
+    "lint": "npm-run-all lint:*",
+    "lint:css": "stylelint 'assets/*.css'",
+    "lint:js": "eslint .",
+    "lint-locales": "node scripts/lint-locales",
+    "lint-locales:dev": "npm run lint-locales",
+    "lint-locales:prod": "npm run lint-locales -- --production",
+    "format": "prettier '!(dist|node_modules|assets)/**/*.js' 'assets/*.css' --single-quote --write",
+    "get-prod-locales": "node scripts/get-prod-locales",
+    "get-prod-locales:write": "npm run get-prod-locales -- --write",
+    "changelog": "github-changes -o mozilla -r send --only-pulls --use-commit-body --no-merges",
+    "contributors": "git shortlog -s | awk -F\\t '{print $2}' > CONTRIBUTORS",
+    "release": "npm-run-all contributors changelog",
+    "test": "mocha test/unit",
+    "start": "cross-env NODE_ENV=development webpack-dev-server",
+    "prod": "node server/prod.js"
  },
-  "devDependencies": {
-    "asmcrypto.js": "0.0.11",
-    "autoprefixer": "^7.1.2",
-    "babel-core": "^6.25.0",
-    "babel-loader": "^7.1.1",
-    "babel-polyfill": "^6.23.0",
-    "babel-preset-es2015": "^6.24.1",
-    "babel-preset-stage-2": "^6.24.1",
-    "bel": "^5.0.3",
-    "browserify": "^14.4.0",
-    "copy-webpack-plugin": "^4.0.1",
-    "cross-env": "^5.0.5",
-    "css-loader": "^0.28.4",
-    "css-mqpacker": "^6.0.1",
-    "cssnano": "^3.10.0",
-    "eslint": "^4.3.0",
-    "eslint-plugin-mocha": "^4.11.0",
-    "eslint-plugin-node": "^5.1.1",
-    "eslint-plugin-security": "^1.4.0",
-    "extract-loader": "^1.0.0",
-    "file-loader": "^0.11.2",
-    "git-rev-sync": "^1.9.1",
-    "github-changes": "^1.1.0",
-    "html-loader": "^0.5.1",
-    "html-webpack-plugin": "^2.30.1",
-    "husky": "^0.14.3",
-    "l20n": "^5.0.0",
-    "lint-staged": "^4.0.3",
-    "mkdirp": "^0.5.1",
-    "mocha": "^3.4.2",
-    "npm-run-all": "^4.0.2",
-    "postcss-cli": "^4.1.0",
-    "postcss-loader": "^2.0.6",
-    "prettier": "^1.5.3",
-    "proxyquire": "^1.8.0",
-    "raven-js": "^3.17.0",
-    "rimraf": "^2.6.1",
-    "selenium-webdriver": "^3.5.0",
-    "sinon": "^2.3.8",
-    "stylelint": "^8.0.0",
-    "stylelint-config-standard": "^17.0.0",
-    "stylelint-no-unsupported-browser-features": "^1.0.0",
-    "supertest": "^3.0.0",
-    "testpilot-ga": "^0.3.0",
-    "webcrypto-liner": "^0.1.25",
-    "webpack": "^3.5.4",
-    "webpack-dev-middleware": "^1.12.0"
+  "lint-staged": {
+    "*.js": [
+      "prettier --single-quote --write",
+      "eslint",
+      "git add"
+    ],
+    "*.css": [
+      "prettier --single-quote --write",
+      "stylelint",
+      "git add"
+    ]
  },
  "engines": {
    "node": ">=8.2.0"
  },
-  "homepage": "https://github.com/mozilla/send/",
-  "license": "MPL-2.0",
-  "repository": "mozilla/send",
+  "devDependencies": {
+    "autoprefixer": "^7.1.2",
+    "babel-core": "^6.26.0",
+    "babel-loader": "^7.1.2",
+    "babel-plugin-yo-yoify": "^0.7.0",
+    "babel-polyfill": "^6.26.0",
+    "babel-preset-env": "^1.6.0",
+    "babel-preset-es2015": "^6.24.1",
+    "babel-preset-stage-2": "^6.24.1",
+    "choo-log": "^7.2.1",
+    "copy-webpack-plugin": "^4.0.1",
+    "cross-env": "^5.0.5",
+    "css-loader": "^0.28.5",
+    "css-mqpacker": "^6.0.1",
+    "cssnano": "^3.10.0",
+    "eslint": "^4.5.0",
+    "eslint-plugin-mocha": "^4.11.0",
+    "eslint-plugin-node": "^5.1.1",
+    "eslint-plugin-security": "^1.4.0",
+    "expose-loader": "^0.7.3",
+    "extract-loader": "^1.0.1",
+    "file-loader": "^0.11.2",
+    "git-rev-sync": "^1.9.1",
+    "github-changes": "^1.1.0",
+    "html-loader": "^0.5.1",
+    "husky": "^0.14.3",
+    "lint-staged": "^4.0.4",
+    "mocha": "^3.5.0",
+    "nanobus": "^4.2.0",
+    "npm-run-all": "^4.0.2",
+    "postcss-loader": "^2.0.6",
+    "prettier": "^1.5.3",
+    "proxyquire": "^1.8.0",
+    "raven-js": "^3.17.0",
+    "require-from-string": "^1.2.1",
+    "rimraf": "^2.6.1",
+    "selenium-webdriver": "^3.5.0",
+    "sinon": "^3.2.1",
+    "stylelint-config-standard": "^17.0.0",
+    "stylelint-no-unsupported-browser-features": "^1.0.0",
+    "supertest": "^3.0.0",
+    "testpilot-ga": "^0.3.0",
+    "val-loader": "^1.0.2",
+    "webpack": "^3.5.5",
+    "webpack-dev-server": "^2.7.1",
+    "webpack-manifest-plugin": "^1.3.1"
+  },
+  "dependencies": {
+    "aws-sdk": "^2.103.0",
+    "body-parser": "^1.17.2",
+    "choo": "^6.0.0",
+    "connect-busboy": "0.0.2",
+    "convict": "^4.0.0",
+    "express": "^4.15.4",
+    "express-request-language": "^1.1.12",
+    "fluent": "^0.4.1",
+    "fluent-langneg": "^0.1.0",
+    "helmet": "^3.8.1",
+    "mozlog": "^2.1.1",
+    "raven": "^2.1.2",
+    "redis": "^2.8.0"
+  },
  "availableLanguages": [
+    "en-US",
    "ast",
    "az",
    "ca",
@ -78,7 +114,6 @@
    "de",
    "dsb",
    "el",
-    "en-US",
    "es-AR",
    "es-CL",
    "es-ES",
@ -108,42 +143,5 @@
    "vi",
    "zh-CN",
    "zh-TW"
-  ],
-  "scripts": {
-    "precommit": "lint-staged",
-    "clean": "rimraf dist",
-    "build": "npm-run-all build:*",
-    "build:js": "webpack -p",
-    "build:version": "node scripts/version",
-    "changelog": "github-changes -o mozilla -r send --only-pulls --use-commit-body --no-merges",
-    "contributors": "git shortlog -s | awk -F\\t '{print $2}' > CONTRIBUTORS",
-    "dev": "npm run clean && npm run build && npm start",
-    "format": "prettier '{,frontend/src/,scripts/,server/,test/**/!(bundle)}*.{js,css}' --single-quote --write",
-    "get-prod-locales": "node scripts/get-prod-locales",
-    "get-prod-locales:write": "npm run get-prod-locales -- --write",
-    "lint": "npm-run-all lint:*",
-    "lint:css": "stylelint 'frontend/src/*.css'",
-    "lint:js": "eslint .",
-    "lint-locales": "node scripts/lint-locales",
-    "lint-locales:dev": "npm run lint-locales",
-    "lint-locales:prod": "npm run lint-locales -- --production",
-    "release": "npm-run-all contributors changelog",
-    "start": "node server/server",
-    "test": "cross-env NODE_ENV=test npm-run-all test:*",
-    "test:unit": "mocha test/unit",
-    "test:server": "mocha test/server",
-    "test--browser": "browserify test/frontend/frontend.bundle.js -o test/frontend/bundle.js -d && node test/frontend/driver.js"
-  },
-  "lint-staged": {
-    "*.js": [
-      "prettier --single-quote --write",
-      "eslint",
-      "git add"
-    ],
-    "*.css": [
-      "prettier --single-quote --write",
-      "stylelint",
-      "git add"
-    ]
-  }
+  ]
 }
--- a/postcss.config.js
+++ b/postcss.config.js
@ -2,13 +2,13 @@ const autoprefixer = require('autoprefixer');
 const cssnano = require('cssnano');
 const mqpacker = require('css-mqpacker');

-const conf = require('./server/config');
+const config = require('./server/config');

 const options = {
  plugins: [autoprefixer, mqpacker, cssnano]
 };

-if (conf.env === 'development') {
+if (config.env === 'development') {
  options.map = { inline: true };
 }

--- a/public/favicon.ico
+++ b/public/favicon.ico
--- a/scripts/version.js
+++ b/scripts/version.js
@ -1,21 +0,0 @@
-const fs = require('fs');
-const path = require('path');
-const pkg = require('../package.json');
-const mkdirp = require('mkdirp');
-
-let commit;
-
-try {
-  commit = require('git-rev-sync').short();
-} catch (err) {
-  // Whatever...
-}
-
-const filename = path.join(__dirname, '..', 'dist', 'public', 'version.json');
-const filedata = {
-  commit,
-  source: pkg.homepage,
-  version: process.env.CIRCLE_TAG || `v${pkg.version}`
-};
-mkdirp.sync(path.dirname(filename));
-fs.writeFileSync(filename, JSON.stringify(filedata, null, 2) + '\n');
--- a/server/dev.js
+++ b/server/dev.js
@ -0,0 +1,13 @@
+const assets = require('../common/assets');
+const locales = require('../common/locales');
+const routes = require('./routes');
+const pages = require('./routes/pages');
+
+module.exports = function(app, devServer) {
+  assets.setMiddleware(devServer.middleware);
+  locales.setMiddleware(devServer.middleware);
+  routes(app);
+  // webpack-dev-server routes haven't been added yet
+  // so wait for next tick to add 404 handler
+  process.nextTick(() => app.use(pages.notfound));
+};
--- a/server/languages.js
+++ b/server/languages.js
@ -0,0 +1,16 @@
+const { availableLanguages } = require('../package.json');
+const config = require('./config');
+const fs = require('fs');
+const path = require('path');
+
+function allLangs() {
+  const langs = fs.readdirSync(path.join(__dirname, '..', 'public', 'locales'));
+  langs.unshift('en-US'); // default first, TODO change for fluent-langneg
+  return langs;
+}
+
+if (config.l10n_dev) {
+  module.exports = allLangs();
+} else {
+  module.exports = availableLanguages;
+}
--- a/server/layout.js
+++ b/server/layout.js
@ -0,0 +1,98 @@
+const html = require('choo/html');
+const assets = require('../common/assets');
+const locales = require('../common/locales');
+
+module.exports = function(state, body = '') {
+  const firaTag = state.fira
+    ? html`<link rel="stylesheet" type="text/css" href="https://code.cdn.mozilla.net/fonts/fira.css" />`
+    : '';
+  return html`
+  <!DOCTYPE html>
+  <html>
+  <head>
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+
+    <meta property="og:title" content="${state.title}"/>
+    <meta name="twitter:title" content="${state.title}"/>
+    <meta name="description" content="${state.description}"/>
+    <meta property="og:description" content="${state.description}"/>
+    <meta name="twitter:description" content="${state.description}"/>
+    <meta name="twitter:card" content="summary"/>
+    <meta property="og:image" content="${state.baseUrl}${assets.get(
+    'send-fb.jpg'
+  )}"/>
+    <meta name="twitter:image" content="${state.baseUrl}${assets.get(
+    'send-twitter.jpg'
+  )}"/>
+    <meta property="og:url" content="${state.baseUrl}"/>
+
+    <title>${state.title}</title>
+
+    <link rel="stylesheet" type="text/css" href="${assets.get('main.css')}" />
+    <link rel="icon" type="image/png" href="${assets.get(
+      'favicon-32x32.png'
+    )}" sizes="32x32" />
+    ${firaTag}
+    <script defer src="/jsconfig.js"></script>
+    <script defer src="${assets.get('runtime.js')}"></script>
+    <script defer src="${assets.get('vendor.js')}"></script>
+    <script defer src="${locales.get(state.locale)}"></script>
+    <script defer src="${assets.get('app.js')}"></script>
+  </head>
+  <body>
+    <header class="header">
+      <div class="send-logo">
+        <a href="/">
+          <img src="${assets.get(
+            'send_logo.svg'
+          )}" alt="Send"/><h1 class="site-title">Send</h1>
+        </a>
+        <div class="site-subtitle">
+          <a href="https://testpilot.firefox.com">Firefox Test Pilot</a>
+          <div>${state.translate('siteSubtitle')}</div>
+        </div>
+      </div>
+      <a href="https://qsurvey.mozilla.com/s3/txp-firefox-send" rel="noreferrer noopener" class="feedback" target="_blank">${state.translate(
+        'siteFeedback'
+      )}</a>
+    </header>
+    <div class="all">
+      <noscript>
+        <h2>Firefox Send requires JavaScript</h2>
+        <p><a href="https://github.com/mozilla/send/blob/master/docs/faq.md#why-does-firefox-send-require-javascript">Why does Firefox Send require JavaScript?</a></p>
+        <p>Please enable JavaScript and try again.</p>
+      </noscript>
+      ${body}
+    </div>
+    <div class="footer">
+      <div class="legal-links">
+        <a href="https://www.mozilla.org" role="presentation"><img class="mozilla-logo" src="${assets.get(
+          'mozilla-logo.svg'
+        )}" alt="mozilla"/></a>
+        <a href="https://www.mozilla.org/about/legal">${state.translate(
+          'footerLinkLegal'
+        )}</a>
+        <a href="https://testpilot.firefox.com/about">${state.translate(
+          'footerLinkAbout'
+        )}</a>
+        <a href="/legal">${state.translate('footerLinkPrivacy')}</a>
+        <a href="/legal">${state.translate('footerLinkTerms')}</a>
+        <a href="https://www.mozilla.org/privacy/websites/#cookies">${state.translate(
+          'footerLinkCookies'
+        )}</a>
+      </div>
+      <div class="social-links">
+        <a href="https://github.com/mozilla/send" role="presentation"><img class="github" src="${assets.get(
+          'github-icon.svg'
+        )}" alt="github"/></a>
+        <a href="https://twitter.com/FxTestPilot" role="presentation"><img class="twitter" src="${assets.get(
+          'twitter-icon.svg'
+        )}" alt="twitter"/></a>
+      </div>
+    </div>
+  </body>
+  </html>
+  `;
+};
--- a/server/log.js
+++ b/server/log.js
@ -1,4 +1,4 @@
-const conf = require('./config.js');
+const conf = require('./config');

 const isProduction = conf.env === 'production';

--- a/server/prod.js
+++ b/server/prod.js
@ -0,0 +1,26 @@
+const express = require('express');
+const path = require('path');
+const Raven = require('raven');
+const config = require('./config');
+const routes = require('./routes');
+const pages = require('./routes/pages');
+
+if (config.sentry_dsn) {
+  Raven.config(config.sentry_dsn).install();
+}
+
+const app = express();
+
+app.use(
+  express.static(path.resolve(__dirname, '../dist/'), {
+    setHeaders: function(res) {
+      res.set('Cache-Control', 'public, max-age=31536000, immutable');
+    }
+  })
+);
+
+routes(app);
+
+app.use(pages.notfound);
+
+app.listen(1443);
--- a/server/routes/delete.js
+++ b/server/routes/delete.js
@ -0,0 +1,30 @@
+const storage = require('../storage');
+
+function validateID(route_id) {
+  return route_id.match(/^[0-9a-fA-F]{10}$/) !== null;
+}
+
+module.exports = async function(req, res) {
+  const id = req.params.id;
+
+  if (!validateID(id)) {
+    res.sendStatus(404);
+    return;
+  }
+
+  const delete_token = req.body.delete_token;
+
+  if (!delete_token) {
+    res.sendStatus(404);
+    return;
+  }
+
+  try {
+    const err = await storage.delete(id, delete_token);
+    if (!err) {
+      res.sendStatus(200);
+    }
+  } catch (e) {
+    res.sendStatus(404);
+  }
+};
--- a/server/routes/download.js
+++ b/server/routes/download.js
@ -0,0 +1,38 @@
+const storage = require('../storage');
+const mozlog = require('../log');
+const log = mozlog('send.download');
+
+function validateID(route_id) {
+  return route_id.match(/^[0-9a-fA-F]{10}$/) !== null;
+}
+
+module.exports = async function(req, res) {
+  const id = req.params.id;
+  if (!validateID(id)) {
+    return res.sendStatus(404);
+  }
+
+  try {
+    const meta = await storage.metadata(id);
+    const contentLength = await storage.length(id);
+    res.writeHead(200, {
+      'Content-Disposition': `attachment; filename=${meta.filename}`,
+      'Content-Type': 'application/octet-stream',
+      'Content-Length': contentLength,
+      'X-File-Metadata': JSON.stringify(meta)
+    });
+    const file_stream = storage.get(id);
+
+    file_stream.on('end', async () => {
+      try {
+        await storage.forceDelete(id);
+      } catch (e) {
+        log.info('DeleteError:', id);
+      }
+    });
+
+    file_stream.pipe(res);
+  } catch (e) {
+    res.sendStatus(404);
+  }
+};
--- a/server/routes/exists.js
+++ b/server/routes/exists.js
@ -0,0 +1,19 @@
+const storage = require('../storage');
+
+function validateID(route_id) {
+  return route_id.match(/^[0-9a-fA-F]{10}$/) !== null;
+}
+
+module.exports = async (req, res) => {
+  const id = req.params.id;
+  if (!validateID(id)) {
+    return res.sendStatus(404);
+  }
+
+  try {
+    await storage.exists(id);
+    res.sendStatus(200);
+  } catch (e) {
+    res.sendStatus(404);
+  }
+};
--- a/server/routes/index.js
+++ b/server/routes/index.js
@ -0,0 +1,80 @@
+const busboy = require('connect-busboy');
+const helmet = require('helmet');
+const bodyParser = require('body-parser');
+const requestLanguage = require('express-request-language');
+const languages = require('../languages');
+const storage = require('../storage');
+const config = require('../config');
+const pages = require('./pages');
+// const lang = require('fluent-langneg')
+
+module.exports = function(app) {
+  app.use(
+    requestLanguage({
+      languages
+    })
+  );
+  app.use(helmet());
+  app.use(
+    helmet.hsts({
+      maxAge: 31536000,
+      force: config.env === 'production'
+    })
+  );
+  app.use(
+    helmet.contentSecurityPolicy({
+      directives: {
+        defaultSrc: ["'self'"],
+        connectSrc: [
+          "'self'",
+          'https://sentry.prod.mozaws.net',
+          'https://www.google-analytics.com'
+        ],
+        imgSrc: ["'self'", 'https://www.google-analytics.com'],
+        scriptSrc: ["'self'"],
+        styleSrc: ["'self'", 'https://code.cdn.mozilla.net'],
+        fontSrc: ["'self'", 'https://code.cdn.mozilla.net'],
+        formAction: ["'none'"],
+        frameAncestors: ["'none'"],
+        objectSrc: ["'none'"],
+        reportUri: '/__cspreport__'
+      }
+    })
+  );
+  app.use(
+    busboy({
+      limits: {
+        fileSize: config.max_file_size
+      }
+    })
+  );
+  app.use(bodyParser.json());
+  app.get('/', pages.index);
+  app.get('/legal', pages.legal);
+  app.get('/jsconfig.js', require('./jsconfig'));
+  app.get('/share/:id', pages.blank);
+  app.get('/download/:id', pages.download);
+  app.get('/completed', pages.blank);
+  app.get('/unsupported/:reason', pages.unsupported);
+  app.post('/api/upload', require('./upload'));
+  app.get('/api/download/:id', require('./download'));
+  app.get('/api/exists/:id', require('./exists'));
+  app.post('/api/delete/:id', require('./delete'));
+
+  app.get('/__version__', function(req, res) {
+    res.sendFile(require.resolve('../../dist/version.json'));
+  });
+
+  app.get('/__lbheartbeat__', function(req, res) {
+    res.sendStatus(200);
+  });
+
+  app.get('__heartbeat__', async (req, res) => {
+    try {
+      await storage.ping();
+      res.sendStatus(200);
+    } catch (e) {
+      res.sendStatus(500);
+    }
+  });
+};
--- a/server/routes/jsconfig.js
+++ b/server/routes/jsconfig.js
@ -0,0 +1,46 @@
+const config = require('../config');
+
+let sentry = '';
+if (config.sentry_id) {
+  //eslint-disable-next-line node/no-missing-require
+  const version = require('../../dist/version.json');
+  sentry = `
+var RAVEN_CONFIG = {
+  release: '${version.version}',
+  tags: {
+    commit: '${version.commit}'
+  },
+  dataCallback: function (data) {
+    var hash = window.location.hash;
+    if (hash) {
+      return JSON.parse(JSON.stringify(data).replace(new RegExp(hash.slice(1), 'g'), ''));
+    }
+    return data;
+  }
+}
+var SENTRY_ID = '${config.sentry_id}';
+`;
+}
+
+let ga = '';
+if (config.analytics_id) {
+  ga = `var GOOGLE_ANALYTICS_ID = ${config.analytics_id};`;
+}
+
+/* eslint-disable no-useless-escape */
+const jsconfig = `
+var isIE = /trident\\\/7\.|msie/i.test(navigator.userAgent);
+var isUnsupportedPage = /\\\/unsupported/.test(location.pathname);
+if (isIE && !isUnsupportedPage) {
+  window.location.replace('/unsupported/ie');
+}
+var MAXFILESIZE = ${config.max_file_size};
+var EXPIRE_SECONDS = ${config.expire_seconds};
+${ga}
+${sentry}
+`;
+
+module.exports = function(req, res) {
+  res.set('Content-Type', 'application/javascript');
+  res.send(jsconfig);
+};
--- a/server/routes/pages.js
+++ b/server/routes/pages.js
@ -0,0 +1,68 @@
+const routes = require('../../app/routes');
+const storage = require('../storage');
+const state = require('../state');
+
+function validateID(route_id) {
+  return route_id.match(/^[0-9a-fA-F]{10}$/) !== null;
+}
+
+function stripEvents(str) {
+  // For CSP we need to remove all the event handler placeholders.
+  // It's ok, app.js will add them when it attaches to the DOM.
+  return str.replace(/\son\w+=""/g, '');
+}
+
+module.exports = {
+  index: function(req, res) {
+    res.send(stripEvents(routes.toString('/', state(req))));
+  },
+
+  blank: function(req, res) {
+    res.send(stripEvents(routes.toString('/blank', state(req))));
+  },
+
+  download: async function(req, res, next) {
+    const id = req.params.id;
+    if (!validateID(id)) {
+      return next();
+    }
+
+    try {
+      const efilename = await storage.filename(id);
+      const name = decodeURIComponent(efilename);
+      const size = await storage.length(id);
+      const ttl = await storage.ttl(id);
+      res.send(
+        stripEvents(
+          routes.toString(
+            `/download/${req.params.id}`,
+            Object.assign(state(req), {
+              fileInfo: { name, size, ttl }
+            })
+          )
+        )
+      );
+    } catch (e) {
+      next();
+    }
+  },
+
+  unsupported: function(req, res) {
+    res.send(
+      stripEvents(
+        routes.toString(
+          `/unsupported/${req.params.reason}`,
+          Object.assign(state(req), { fira: true })
+        )
+      )
+    );
+  },
+
+  legal: function(req, res) {
+    res.send(stripEvents(routes.toString('/legal', state(req))));
+  },
+
+  notfound: function(req, res) {
+    res.status(404).send(stripEvents(routes.toString('/404', state(req))));
+  }
+};
--- a/server/routes/upload.js
+++ b/server/routes/upload.js
@ -0,0 +1,65 @@
+const crypto = require('crypto');
+const storage = require('../storage');
+const config = require('../config');
+const mozlog = require('../log');
+
+const log = mozlog('send.upload');
+
+const validateIV = route_id => {
+  return route_id.match(/^[0-9a-fA-F]{24}$/) !== null;
+};
+
+module.exports = function(req, res) {
+  const newId = crypto.randomBytes(5).toString('hex');
+  let meta;
+
+  try {
+    meta = JSON.parse(req.header('X-File-Metadata'));
+  } catch (e) {
+    res.sendStatus(400);
+    return;
+  }
+
+  if (
+    !meta.hasOwnProperty('id') ||
+    !meta.hasOwnProperty('filename') ||
+    !validateIV(meta.id)
+  ) {
+    res.sendStatus(404);
+    return;
+  }
+
+  meta.delete = crypto.randomBytes(10).toString('hex');
+  req.pipe(req.busboy);
+
+  req.busboy.on(
+    'file',
+    async (fieldname, file, filename, encoding, mimeType) => {
+      try {
+        meta.mimeType = mimeType || 'application/octet-stream';
+        await storage.set(newId, file, filename, meta);
+        const protocol = config.env === 'production' ? 'https' : req.protocol;
+        const url = `${protocol}://${req.get('host')}/download/${newId}/`;
+        res.json({
+          url,
+          delete: meta.delete,
+          id: newId
+        });
+      } catch (e) {
+        log.error('upload', e);
+        if (e.message === 'limit') {
+          return res.sendStatus(413);
+        }
+        res.sendStatus(500);
+      }
+    }
+  );
+
+  req.on('close', async err => {
+    try {
+      await storage.forceDelete(newId);
+    } catch (e) {
+      log.info('DeleteError:', newId);
+    }
+  });
+};
--- a/server/server.js
+++ b/server/server.js
@ -1,328 +0,0 @@
-const express = require('express');
-const exphbs = require('express-handlebars');
-const busboy = require('connect-busboy');
-const path = require('path');
-const bodyParser = require('body-parser');
-const helmet = require('helmet');
-const conf = require('./config.js');
-const storage = require('./storage.js');
-const Raven = require('raven');
-const crypto = require('crypto');
-const fs = require('fs');
-const version = require('../dist/public/version.json');
-
-if (conf.sentry_dsn) {
-  Raven.config(conf.sentry_dsn).install();
-}
-
-const mozlog = require('./log.js');
-
-const log = mozlog('send.server');
-
-const STATIC_PATH = path.join(__dirname, '../dist/public');
-
-const app = express();
-
-function allLangs() {
-  return fs
-    .readdirSync(path.join(STATIC_PATH, 'locales'))
-    .map(function(f) {
-      return f.split('.')[0];
-    })
-    .join(',');
-}
-
-function prodLangs() {
-  return require('../package.json').availableLanguages.join(',');
-}
-
-const availableLanguages = conf.l10n_dev ? allLangs() : prodLangs();
-
-// dev middleware is broken at the moment because of how webpack builds the
-// handlebars templates. Leaving the commented code here as a mark of shame.
-
-// if (conf.env === 'development') {
-//   const webpack = require('webpack');
-//   const webpackDevMiddleware = require('webpack-dev-middleware');
-//   const config = require('../webpack.config.js');
-//   config.devtool = 'inline-source-map';
-//   const compiler = webpack(config);
-//   const wdm = webpackDevMiddleware(compiler, {
-//     publicPath: config.output.publicPath
-//   });
-//   app.use(wdm);
-// }
-app.set('views', 'dist/views/');
-app.engine(
-  'handlebars',
-  exphbs({
-    defaultLayout: 'main',
-    layoutsDir: 'dist/views/layouts',
-    helpers: {
-      availableLanguages,
-      baseUrl: conf.base_url,
-      title: 'Firefox Send',
-      description:
-        'Encrypt and send files with a link that automatically expires to ensure your important documents don’t stay online forever.'
-    }
-  })
-);
-app.set('view engine', 'handlebars');
-
-app.use(helmet());
-app.use(
-  helmet.hsts({
-    maxAge: 31536000,
-    force: conf.env === 'production'
-  })
-);
-app.use(
-  helmet.contentSecurityPolicy({
-    directives: {
-      defaultSrc: ["'self'"],
-      connectSrc: [
-        "'self'",
-        'https://sentry.prod.mozaws.net',
-        'https://www.google-analytics.com'
-      ],
-      imgSrc: ["'self'", 'https://www.google-analytics.com'],
-      scriptSrc: ["'self'"],
-      styleSrc: ["'self'", 'https://code.cdn.mozilla.net'],
-      fontSrc: ["'self'", 'https://code.cdn.mozilla.net'],
-      formAction: ["'none'"],
-      frameAncestors: ["'none'"],
-      objectSrc: ["'none'"],
-      reportUri: '/__cspreport__'
-    }
-  })
-);
-app.use(
-  busboy({
-    limits: {
-      fileSize: conf.max_file_size
-    }
-  })
-);
-app.use(bodyParser.json());
-app.use(
-  '/resources',
-  express.static(path.join(STATIC_PATH, 'resources'), {
-    setHeaders: function(res) {
-      res.set('Cache-Control', 'public, max-age=31536000, immutable');
-    }
-  })
-);
-app.use(express.static(STATIC_PATH));
-
-app.get('/', (req, res) => {
-  res.render('index');
-});
-
-app.get('/unsupported/:reason', (req, res) => {
-  const outdated = req.params.reason === 'outdated';
-  res.render('unsupported', {
-    outdated,
-    fira: true
-  });
-});
-
-app.get('/legal', (req, res) => {
-  res.render('legal');
-});
-
-app.get('/jsconfig.js', (req, res) => {
-  res.set('Content-Type', 'application/javascript');
-  res.render('jsconfig', {
-    googleAnalyticsId: conf.analytics_id,
-    sentryId: conf.sentry_id,
-    version: version.version,
-    commit: version.commit,
-    maxFileSize: conf.max_file_size,
-    expireSeconds: conf.expire_seconds,
-    layout: false
-  });
-});
-
-app.get('/exists/:id', async (req, res) => {
-  const id = req.params.id;
-  if (!validateID(id)) {
-    res.sendStatus(404);
-    return;
-  }
-
-  try {
-    await storage.exists(id);
-    res.sendStatus(200);
-  } catch (e) {
-    res.sendStatus(404);
-  }
-});
-
-app.get('/download/:id', async (req, res) => {
-  const id = req.params.id;
-  if (!validateID(id)) {
-    res.status(404).render('notfound');
-    return;
-  }
-
-  try {
-    const efilename = await storage.filename(id);
-    const filename = decodeURIComponent(efilename);
-    const filenameJson = JSON.stringify({ filename });
-    const sizeInBytes = await storage.length(id);
-    const ttl = await storage.ttl(id);
-    res.render('download', {
-      filename,
-      filenameJson,
-      sizeInBytes,
-      ttl
-    });
-  } catch (e) {
-    res.status(404).render('notfound');
-  }
-});
-
-app.get('/assets/download/:id', async (req, res) => {
-  const id = req.params.id;
-  if (!validateID(id)) {
-    res.sendStatus(404);
-    return;
-  }
-
-  try {
-    const meta = await storage.metadata(id);
-    const contentLength = await storage.length(id);
-    res.writeHead(200, {
-      'Content-Disposition': `attachment; filename=${meta.filename}`,
-      'Content-Type': 'application/octet-stream',
-      'Content-Length': contentLength,
-      'X-File-Metadata': JSON.stringify(meta)
-    });
-    const file_stream = storage.get(id);
-
-    file_stream.on('end', async () => {
-      try {
-        await storage.forceDelete(id);
-      } catch (e) {
-        log.info('DeleteError:', id);
-      }
-    });
-
-    file_stream.pipe(res);
-  } catch (e) {
-    res.sendStatus(404);
-  }
-});
-
-app.post('/delete/:id', async (req, res) => {
-  const id = req.params.id;
-
-  if (!validateID(id)) {
-    res.sendStatus(404);
-    return;
-  }
-
-  const delete_token = req.body.delete_token;
-
-  if (!delete_token) {
-    res.sendStatus(404);
-    return;
-  }
-
-  try {
-    const err = await storage.delete(id, delete_token);
-    if (!err) {
-      res.sendStatus(200);
-    }
-  } catch (e) {
-    res.sendStatus(404);
-  }
-});
-
-app.post('/upload', (req, res, next) => {
-  const newId = crypto.randomBytes(5).toString('hex');
-  let meta;
-
-  try {
-    meta = JSON.parse(req.header('X-File-Metadata'));
-  } catch (e) {
-    res.sendStatus(400);
-    return;
-  }
-
-  if (
-    !meta.hasOwnProperty('id') ||
-    !meta.hasOwnProperty('filename') ||
-    !validateIV(meta.id)
-  ) {
-    res.sendStatus(404);
-    return;
-  }
-
-  meta.delete = crypto.randomBytes(10).toString('hex');
-  req.pipe(req.busboy);
-
-  req.busboy.on(
-    'file',
-    async (fieldname, file, filename, encoding, mimeType) => {
-      try {
-        meta.mimeType = mimeType || 'application/octet-stream';
-        await storage.set(newId, file, filename, meta);
-        const protocol = conf.env === 'production' ? 'https' : req.protocol;
-        const url = `${protocol}://${req.get('host')}/download/${newId}/`;
-        res.json({
-          url,
-          delete: meta.delete,
-          id: newId
-        });
-      } catch (e) {
-        if (e.message === 'limit') {
-          return res.sendStatus(413);
-        }
-        res.sendStatus(500);
-      }
-    }
-  );
-
-  req.on('close', async err => {
-    try {
-      await storage.forceDelete(newId);
-    } catch (e) {
-      log.info('DeleteError:', newId);
-    }
-  });
-});
-
-app.get('/__lbheartbeat__', (req, res) => {
-  res.sendStatus(200);
-});
-
-app.get('/__heartbeat__', async (req, res) => {
-  try {
-    await storage.ping();
-    res.sendStatus(200);
-  } catch (e) {
-    res.sendStatus(500);
-  }
-});
-
-app.get('/__version__', (req, res) => {
-  res.sendFile(path.join(STATIC_PATH, 'version.json'));
-});
-
-const server = app.listen(conf.listen_port, () => {
-  log.info('startServer:', `Send app listening on port ${conf.listen_port}!`);
-});
-
-const validateID = route_id => {
-  return route_id.match(/^[0-9a-fA-F]{10}$/) !== null;
-};
-
-const validateIV = route_id => {
-  return route_id.match(/^[0-9a-fA-F]{24}$/) !== null;
-};
-
-module.exports = {
-  server: server,
-  storage: storage
-};
--- a/server/state.js
+++ b/server/state.js
@ -0,0 +1,20 @@
+const config = require('./config');
+const layout = require('./layout');
+const locales = require('../common/locales');
+
+module.exports = function(req) {
+  const locale = req.language || 'en-US';
+  return {
+    locale,
+    translate: locales.getTranslator(locale),
+    title: 'Firefox Send',
+    description:
+      'Encrypt and send files with a link that automatically expires to ensure your important documents don’t stay online forever.',
+    baseUrl: config.base_url,
+    ui: {},
+    storage: {
+      files: []
+    },
+    layout
+  };
+};
--- a/server/storage.js
+++ b/server/storage.js
@ -1,17 +1,18 @@
 const AWS = require('aws-sdk');
 const s3 = new AWS.S3();

-const conf = require('./config.js');
+const config = require('./config');
+const { tmpdir } = require('os');
 const fs = require('fs');
 const path = require('path');

-const mozlog = require('./log.js');
+const mozlog = require('./log');

 const log = mozlog('send.storage');

 const redis = require('redis');
 const redis_client = redis.createClient({
-  host: conf.redis_host,
+  host: config.redis_host,
  connect_timeout: 10000
 });

@ -19,7 +20,9 @@ redis_client.on('error', err => {
  log.error('Redis:', err);
 });

-if (conf.s3_bucket) {
+let tempDir = null;
+
+if (config.s3_bucket) {
  module.exports = {
    filename: filename,
    exists: exists,
@ -36,6 +39,8 @@ if (conf.s3_bucket) {
    metadata
  };
 } else {
+  tempDir = fs.mkdtempSync(`${tmpdir()}${path.sep}send-`);
+  log.info('tempDir', tempDir);
  module.exports = {
    filename: filename,
    exists: exists,
@ -113,7 +118,7 @@ function setField(id, key, value) {
 function localLength(id) {
  return new Promise((resolve, reject) => {
    try {
-      resolve(fs.statSync(path.join(__dirname, '../static', id)).size);
+      resolve(fs.statSync(path.join(tempDir, id)).size);
    } catch (err) {
      reject();
    }
@ -121,12 +126,12 @@ function localLength(id) {
 }

 function localGet(id) {
-  return fs.createReadStream(path.join(__dirname, '../static', id));
+  return fs.createReadStream(path.join(tempDir, id));
 }

 function localSet(newId, file, filename, meta) {
  return new Promise((resolve, reject) => {
-    const filepath = path.join(__dirname, '../static', newId);
+    const filepath = path.join(tempDir, newId);
    const fstream = fs.createWriteStream(filepath);
    file.pipe(fstream);
    file.on('limit', () => {
@ -135,7 +140,7 @@ function localSet(newId, file, filename, meta) {
    });
    fstream.on('finish', () => {
      redis_client.hmset(newId, meta);
-      redis_client.expire(newId, conf.expire_seconds);
+      redis_client.expire(newId, config.expire_seconds);
      log.info('localSet:', 'Upload Finished of ' + newId);
      resolve(meta.delete);
    });
@ -156,7 +161,7 @@ function localDelete(id, delete_token) {
      } else {
        redis_client.del(id);
        log.info('Deleted:', id);
-        resolve(fs.unlinkSync(path.join(__dirname, '../static', id)));
+        resolve(fs.unlinkSync(path.join(tempDir, id)));
      }
    });
  });
@ -165,7 +170,7 @@ function localDelete(id, delete_token) {
 function localForceDelete(id) {
  return new Promise((resolve, reject) => {
    redis_client.del(id);
-    resolve(fs.unlinkSync(path.join(__dirname, '../static', id)));
+    resolve(fs.unlinkSync(path.join(tempDir, id)));
  });
 }

@ -179,7 +184,7 @@ function localPing() {

 function awsLength(id) {
  const params = {
-    Bucket: conf.s3_bucket,
+    Bucket: config.s3_bucket,
    Key: id
  };
  return new Promise((resolve, reject) => {
@ -195,7 +200,7 @@ function awsLength(id) {

 function awsGet(id) {
  const params = {
-    Bucket: conf.s3_bucket,
+    Bucket: config.s3_bucket,
    Key: id
  };

@ -208,7 +213,7 @@ function awsGet(id) {

 function awsSet(newId, file, filename, meta) {
  const params = {
-    Bucket: conf.s3_bucket,
+    Bucket: config.s3_bucket,
    Key: newId,
    Body: file
  };
@ -221,7 +226,7 @@ function awsSet(newId, file, filename, meta) {
  return upload.promise().then(
    () => {
      redis_client.hmset(newId, meta);
-      redis_client.expire(newId, conf.expire_seconds);
+      redis_client.expire(newId, config.expire_seconds);
    },
    err => {
      if (hitLimit) {
@ -240,7 +245,7 @@ function awsDelete(id, delete_token) {
        reject();
      } else {
        const params = {
-          Bucket: conf.s3_bucket,
+          Bucket: config.s3_bucket,
          Key: id
        };

@ -256,7 +261,7 @@ function awsDelete(id, delete_token) {
 function awsForceDelete(id) {
  return new Promise((resolve, reject) => {
    const params = {
-      Bucket: conf.s3_bucket,
+      Bucket: config.s3_bucket,
      Key: id
    };

@ -269,6 +274,6 @@ function awsForceDelete(id) {

 function awsPing() {
  return localPing().then(() =>
-    s3.headBucket({ Bucket: conf.s3_bucket }).promise()
+    s3.headBucket({ Bucket: config.s3_bucket }).promise()
  );
 }
--- a/static/info.txt
+++ b/static/info.txt
@ -1 +0,0 @@
-This is where downloaded files are stored. 
--- a/test/frontend/frontend.bundle.js
+++ b/test/frontend/frontend.bundle.js
@ -12,11 +12,11 @@ window.Raven = {
 };

 window.FakeFile = FakeFile;
-window.FileSender = require('../../frontend/src/fileSender');
-window.FileReceiver = require('../../frontend/src/fileReceiver');
+window.FileSender = require('../../app/fileSender');
+window.FileReceiver = require('../../app/fileReceiver');
 window.sinon = require('sinon');
 window.server = window.sinon.fakeServer.create();
 window.assert = require('assert');
-const utils = require('../../frontend/src/utils');
+const utils = require('../../app/utils');
 window.hexToArray = utils.hexToArray;
 window.arrayToHex = utils.arrayToHex;
--- a/test/unit/aws.storage.test.js
+++ b/test/unit/aws.storage.test.js
@ -46,11 +46,11 @@ const awsStub = {
 const storage = proxyquire('../../server/storage', {
  redis: redisStub,
  fs: fsStub,
-  './log.js': function() {
+  './log': function() {
    return logStub;
  },
  'aws-sdk': awsStub,
-  './config.js': {
+  './config': {
    s3_bucket: 'test'
  }
 });
--- a/test/unit/local.storage.test.js
+++ b/test/unit/local.storage.test.js
@ -2,8 +2,6 @@ const assert = require('assert');
 const sinon = require('sinon');
 const proxyquire = require('proxyquire');

-// const conf = require('../server/config.js');
-
 const redisStub = {};
 const exists = sinon.stub();
 const hget = sinon.stub();
@ -35,7 +33,7 @@ logStub.error = sinon.stub();
 const storage = proxyquire('../../server/storage', {
  redis: redisStub,
  fs: fsStub,
-  './log.js': function() {
+  './log': function() {
    return logStub;
  }
 });
--- a/views/jsconfig.handlebars
+++ b/views/jsconfig.handlebars
@ -1,28 +0,0 @@
-{{!-- This file should be es5 only --}}
-var isIE = /trident\/7\.|msie/i.test(navigator.userAgent);
-var isUnsupportedPage = /\/unsupported/.test(location.pathname);
-if (isIE && !isUnsupportedPage) {
-  window.location.replace('/unsupported/ie');
-}
-
-{{#if sentryId}}
-var RAVEN_CONFIG = {
-  release: '{{{version}}}',
-  tags: {
-    commit: '{{{commit}}}'
-  },
-  dataCallback: function (data) {
-    var hash = window.location.hash;
-    if (hash) {
-      return JSON.parse(JSON.stringify(data).replace(new RegExp(hash.slice(1), 'g'), ''));
-    }
-    return data;
-  }
-}
-var SENTRY_ID = '{{{sentryId}}}';
-{{/if}}
-{{#if googleAnalyticsId}}
-var GOOGLE_ANALYTICS_ID = '{{{googleAnalyticsId}}}';
-{{/if}}
-var MAXFILESIZE = {{{maxFileSize}}};
-var EXPIRE_SECONDS = {{{expireSeconds}}};
--- a/webpack.config.js
+++ b/webpack.config.js
@ -1,17 +1,16 @@
 const path = require('path');
 const webpack = require('webpack');
-const HtmlPlugin = require('html-webpack-plugin');
 const CopyPlugin = require('copy-webpack-plugin');
+const ManifestPlugin = require('webpack-manifest-plugin');

 module.exports = {
  entry: {
-    vendor: ['babel-polyfill', 'raven-js'],
-    upload: ['./frontend/src/upload.js'],
-    download: ['./frontend/src/download.js']
+    vendor: ['babel-polyfill', 'raven-js', 'fluent', 'choo'],
+    app: ['./app/main.js']
  },
  output: {
-    filename: 'resources/[name].[chunkhash].js',
-    path: path.resolve(__dirname, 'dist/public'),
+    filename: '[name].[chunkhash:8].js',
+    path: path.resolve(__dirname, 'dist'),
    publicPath: '/'
  },
  module: {
@ -20,19 +19,48 @@ module.exports = {
        test: /\.js$/,
        loader: 'babel-loader',
        include: [
-          path.resolve(__dirname, 'frontend'),
+          path.resolve(__dirname, 'app'),
+          path.resolve(__dirname, 'common'),
          path.resolve(__dirname, 'node_modules/testpilot-ga/src')
        ],
        options: {
          babelrc: false,
-          presets: [['es2015', { modules: false }], 'stage-2']
+          presets: [['env', { modules: false }], 'stage-2'],
+          plugins: ['yo-yoify']
        }
      },
+      {
+        test: /\.js$/,
+        include: [path.dirname(require.resolve('fluent'))],
+        use: [
+          {
+            loader: 'expose-loader',
+            options: 'fluent'
+          },
+          {
+            loader: 'babel-loader',
+            options: {
+              presets: [['env', { modules: false }]]
+            }
+          }
+        ]
+      },
+      {
+        test: require.resolve('./assets/cryptofill'),
+        use: [
+          {
+            loader: 'file-loader',
+            options: {
+              name: '[name].[hash:8].[ext]'
+            }
+          }
+        ]
+      },
      {
        test: /\.(svg|png|jpg)$/,
        loader: 'file-loader',
        options: {
-          name: 'resources/[name].[hash].[ext]'
+          name: '[name].[hash:8].[ext]'
        }
      },
      {
@ -41,7 +69,7 @@ module.exports = {
          {
            loader: 'file-loader',
            options: {
-              name: 'resources/[name].[hash].[ext]'
+              name: '[name].[hash:8].[ext]'
            }
          },
          'extract-loader',
@ -50,75 +78,64 @@ module.exports = {
        ]
      },
      {
-        test: /\.hbs$/,
+        test: require.resolve('./package.json'),
        use: [
          {
-            loader: 'html-loader',
+            loader: 'file-loader',
            options: {
-              interpolate: 'require',
-              minimize: false
+              name: 'version.json'
            }
-          }
+          },
+          'extract-loader',
+          './build/package_json_loader'
        ]
+      },
+      {
+        test: /\.ftl$/,
+        use: [
+          {
+            loader: 'file-loader',
+            options: {
+              name: '[path][name].[hash:8].js'
+            }
+          },
+          'extract-loader',
+          './build/fluent_loader'
+        ]
+      },
+      {
+        test: require.resolve('./build/generate_asset_map.js'),
+        use: ['babel-loader', 'val-loader']
+      },
+      {
+        test: require.resolve('./build/generate_l10n_map.js'),
+        use: ['babel-loader', 'val-loader']
      }
    ]
  },
  plugins: [
    new CopyPlugin([
-      {
-        context: 'public',
-        from: 'locales/**/*.ftl'
-      },
      {
        context: 'public',
        from: '*.*'
-      },
-      {
-        from: 'views/**',
-        to: '../'
-      },
-      {
-        context: 'node_modules/l20n/dist/web',
-        from: 'l20n.min.js'
      }
    ]),
-    new HtmlPlugin({
-      filename: '../views/index.handlebars',
-      template: 'webpack/upload.hbs',
-      chunks: ['upload']
-    }),
-    new HtmlPlugin({
-      filename: '../views/download.handlebars',
-      template: 'webpack/download.hbs',
-      chunks: ['download']
-    }),
-    new HtmlPlugin({
-      filename: '../views/legal.handlebars',
-      template: 'webpack/legal.hbs',
-      inject: false
-    }),
-    new HtmlPlugin({
-      filename: '../views/notfound.handlebars',
-      template: 'webpack/notfound.hbs',
-      inject: false
-    }),
-    new HtmlPlugin({
-      filename: '../views/layouts/main.handlebars',
-      template: 'webpack/layout.hbs',
-      inject: 'head',
-      excludeChunks: ['upload', 'download']
-    }),
-    new HtmlPlugin({
-      filename: '../views/unsupported.handlebars',
-      template: 'webpack/unsupported.hbs',
-      inject: false
-    }),
+    new webpack.IgnorePlugin(/dist/),
+    new webpack.IgnorePlugin(/require-from-string/),
    new webpack.HashedModuleIdsPlugin(),
    new webpack.optimize.CommonsChunkPlugin({
      name: 'vendor'
    }),
    new webpack.optimize.CommonsChunkPlugin({
      name: 'runtime'
-    })
-  ]
+    }),
+    new ManifestPlugin()
+  ],
+  devServer: {
+    compress: true,
+    setup:
+      process.env.NODE_ENV === 'development'
+        ? require('./server/dev')
+        : undefined
+  }
 };
--- a/webpack/download.hbs
+++ b/webpack/download.hbs
@ -1,43 +0,0 @@
-<div id="download">
-  <div id="download-page-one">
-    <div class="title">
-      <span id="dl-file"
-            data-filename="{{filename}}"
-            data-size="{{sizeInBytes}}"
-            data-ttl="{{ttl}}"
-            data-l10n-id="downloadFileName"
-            data-l10n-args='{{filenameJson}}'></span>
-      <span id="dl-filesize"></span>
-    </div>
-    <div class="description" data-l10n-id="downloadMessage"></div>
-    <img src="../public/resources/illustration_download.svg" id="download-img" data-l10n-id="downloadAltText"/>
-    <div>
-      <button id="download-btn" class="btn" data-l10n-id="downloadButtonLabel"></button>
-    </div>
-  </div>
-
-  <div id="download-progress" hidden="true">
-    <div id="dl-title" class="title"></div>
-    <div class="description" data-l10n-id="downloadingPageMessage"></div>
-    <div class="progress-bar">
-      <svg id="progress" width="166" height="166" viewPort="0 0 166 166" version="1.1">
-        <circle r="73" cx="83" cy="83" fill="transparent"/>
-        <circle id="bar" r="73" cx="83" cy="83" fill="transparent" transform="rotate(-90 83 83)" stroke-dasharray="458.67" stroke-dashoffset="458.67"/>
-      </svg>
-      <div class="percentage">
-        <span class="percent-number"></span>
-        <span class="percent-sign">%</span>
-      </div>
-    </div>
-    <div class="upload">
-      <div class="progress-text">{{filename}}</div>
-    </div>
-  </div>
-
-  <div id="upload-error" hidden="true">
-    <div class="title" data-l10n-id="errorPageHeader"></div>
-    <img id="upload-error-img" data-l10n-id="errorAltText" src="../public/resources/illustration_error.svg"/>
-  </div>
-
-  <a class="send-new" data-state="completed" data-l10n-id="sendYourFilesLink" href="/"></a>
-</div>
--- a/webpack/layout.hbs
+++ b/webpack/layout.hbs
@ -1,69 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-  <meta http-equiv="X-UA-Compatible" content="IE=edge">
-  <meta charset="utf-8" />
-  <meta name="viewport" content="width=device-width, initial-scale=1">
-  <meta name="defaultLanguage" content="en-US">
-  <meta name="availableLanguages" content="{{availableLanguages}}">
-
-  <meta property="og:title" content="{{title}}"/>
-  <meta name="twitter:title" content="{{title}}"/>
-  <meta name="description" content="{{description}}"/>
-  <meta property="og:description" content="{{description}}"/>
-  <meta name="twitter:description" content="{{description}}"/>
-  <meta name="twitter:card" content="summary"/>
-  <meta property="og:image" content="{{baseUrl}}${require('../public/resources/send-fb.jpg')}"/>
-  <meta name="twitter:image" content="{{baseUrl}}${require('../public/resources/send-twitter.jpg')}"/>
-  <meta property="og:url" content="{{baseUrl}}"/>
-
-  <title>{{title}}</title>
-
-  <link rel="stylesheet" type="text/css" href="${require('../frontend/src/main.css')}" />
-  {{#if fira}}
-  <link rel="stylesheet" type="text/css" href="https://code.cdn.mozilla.net/fonts/fira.css" />
-  {{/if}}
-
-  <link rel="icon" type="image/png" href="${require('../public/resources/favicon-32x32.png')}" sizes="32x32" />
-  <link rel="localization" href="/locales/{locale}/send.ftl">
-
-  <script src="/jsconfig.js"></script>
-  <script defer src="/l20n.min.js"></script>
-</head>
-<body>
-  <header class="header">
-    <div class="send-logo">
-      <a href="/">
-        <img src="../public/resources/send_logo.svg" alt="Send"/><h1 class="site-title">Send</h1>
-      </a>
-      <div class="site-subtitle">
-        <a href="https://testpilot.firefox.com">Firefox Test Pilot</a>
-        <div data-l10n-id="siteSubtitle">web experiment</div>
-      </div>
-    </div>
-    <a href="https://qsurvey.mozilla.com/s3/txp-firefox-send" rel="noreferrer noopener" class="feedback" target="_blank" data-l10n-id="siteFeedback">Feedback</a>
-  </header>
-  <div class="all">
-    <noscript>
-      <h2>Firefox Send requires JavaScript</h2>
-      <p><a href="https://github.com/mozilla/send/blob/master/docs/faq.md#why-does-firefox-send-require-javascript">Why does Firefox Send require JavaScript?</a></p>
-      <p>Please enable JavaScript and try again.</p>
-    </noscript>
-    {{{body}}}
-  </div>
-  <div class="footer">
-    <div class="legal-links">
-      <a href="https://www.mozilla.org" role="presentation"><img class="mozilla-logo" src="../public/resources/mozilla-logo.svg" alt="mozilla"/></a>
-      <a href="https://www.mozilla.org/about/legal" data-l10n-id="footerLinkLegal">Legal</a>
-      <a href="https://testpilot.firefox.com/about" data-l10n-id="footerLinkAbout">About Test Pilot</a>
-      <a href="/legal" data-l10n-id="footerLinkPrivacy">Privacy</a>
-      <a href="/legal" data-l10n-id="footerLinkTerms">Terms</a>
-      <a href="https://www.mozilla.org/privacy/websites/#cookies" data-l10n-id="footerLinkCookies">Cookies</a>
-    </div>
-    <div class="social-links">
-      <a href="https://github.com/mozilla/send" role="presentation"><img class="github" src="../public/resources/github-icon.svg" alt="github"/></a>
-      <a href="https://twitter.com/FxTestPilot" role="presentation"><img class="twitter" src="../public/resources/twitter-icon.svg" alt="twitter"/></a>
-    </div>
-  </div>
-</body>
-</html>
--- a/webpack/legal.hbs
+++ b/webpack/legal.hbs
@ -1,12 +0,0 @@
-<div id="legal">
-  <div class="title" data-l10n-id="legalHeader"></div>
-  <div class="description" data-l10n-id="legalNoticeTestPilot">
-    <a href="https://testpilot.firefox.com/terms"></a>
-    <a href="https://testpilot.firefox.com/privacy"></a>
-    <a href="https://testpilot.firefox.com/experiments/send"></a>
-  </div>
-  <div class="description" data-l10n-id="legalNoticeMozilla">
-    <a href="https://www.mozilla.org/privacy/websites/"></a>
-    <a href="https://www.mozilla.org/about/legal/terms/mozilla/"></a>
-  </div>
-</div>
--- a/webpack/notfound.hbs
+++ b/webpack/notfound.hbs
@ -1,8 +0,0 @@
-<div id="download">
-<div class="title" data-l10n-id="expiredPageHeader"></div>
-<div class="share-window">
-  <img src="../public/resources/illustration_expired.svg" id="expired-img" data-l10n-id="linkExpiredAlt"/>
-</div>
-<div class="expired-description" data-l10n-id="uploadPageExplainer"></div>
-<a class="send-new" href="/" data-state="notfound" data-l10n-id="sendYourFilesLink"></a>
-</div>
--- a/webpack/unsupported.hbs
+++ b/webpack/unsupported.hbs
@ -1,20 +0,0 @@
-<div id="unsupported-browser">
-  <div class="title" data-l10n-id="notSupportedHeader">Your browser is not supported.</div>
-  {{#if outdated}}
-    <div class="description" data-l10n-id="notSupportedOutdatedDetail">Unfortunately this version of Firefox does not support the web technology that powers Firefox Send. You’ll need to update your browser.</div>
-    <a id="update-firefox" href="https://support.mozilla.org/kb/update-firefox-latest-version">
-      <img src="../public/resources/firefox_logo-only.svg" class="firefox-logo" alt="Firefox"/>
-      <div class="unsupported-button-text" data-l10n-id="updateFirefox">Update Firefox</div>
-    </a>
-  {{else}}
-    <div class="description" data-l10n-id="notSupportedDetail">Unfortunately this browser does not support the web technology that powers Firefox Send. You’ll need to try another browser. We recommend Firefox!</div>
-    <div class="description"><a href="https://github.com/mozilla/send/blob/master/docs/faq.md#why-is-my-browser-not-supported" data-l10n-id="notSupportedLink">Why is my browser not supported?</a></div>
-    <a id="dl-firefox" href="https://www.mozilla.org/firefox/new/?scene=2">
-      <img src="../public/resources/firefox_logo-only.svg" class="firefox-logo" alt="Firefox"/>
-      <div class="unsupported-button-text">Firefox<br>
-        <span data-l10n-id="downloadFirefoxButtonSub">Free Download</span>
-      </div>
-    </a>
-  {{/if}}
-  <div class="unsupported-description" data-l10n-id="uploadPageExplainer">Send files through a safe, private, and encrypted link that automatically expires to ensure your stuff does not remain online forever.</div>
-</div>
--- a/webpack/upload.hbs
+++ b/webpack/upload.hbs
@ -1,75 +0,0 @@
-<div id="page-one" hidden>
-  <div class="title" data-l10n-id="uploadPageHeader"></div>
-  <div class="description">
-    <div data-l10n-id="uploadPageExplainer"></div>
-    <a href="https://testpilot.firefox.com/experiments/send" class="link" data-l10n-id="uploadPageLearnMore"></a>
-  </div>
-  <div class="upload-window" >
-    <div id="upload-img"><img data-l10n-id="uploadSvgAlt" src="../public/resources/upload.svg"/></div>
-    <div id="upload-text" data-l10n-id="uploadPageDropMessage"></div>
-    <span id="file-size-msg"><em data-l10n-id="uploadPageSizeMessage"></em></span>
-    <form method="post" action="upload" enctype="multipart/form-data">
-      <label for="file-upload" id="browse"
-              data-l10n-id="uploadPageBrowseButton1" class="btn"></label>
-      <input id="file-upload" type="file" name="fileUploaded" />
-    </form>
-  </div>
-
-  <div id="file-list">
-    <table id="uploaded-files">
-      <thead>
-        <tr>
-          <!-- htmllint attr-bans="false" -->
-          <th id="uploaded-file" data-l10n-id="uploadedFile"></th>
-          <th id="copy-file-list" data-l10n-id="copyFileList"></th>
-          <th id="expiry-file-list" data-l10n-id="expiryFileList"></th>
-          <th id="delete-file-list" data-l10n-id="deleteFileList"></th>
-          <!-- htmllint tag-bans="$previous" -->
-        </tr>
-      </thead>
-      <tbody>
-      </tbody>
-    </table>
-  </div>
-</div>
-
-<div id="upload-progress" hidden="true">
-  <div class="title" id="upload-filename"></div>
-  <div class="description"></div>
-  <div class="progress-bar">
-    <svg id="progress" width="166" height="166" viewPort="0 0 166 166" version="1.1">
-      <circle r="73" cx="83" cy="83" fill="transparent"/>
-      <circle id="bar" r="73" cx="83" cy="83" fill="transparent" transform="rotate(-90 83 83)" stroke-dasharray="458.67" stroke-dashoffset="458.67"/>
-    </svg>
-    <div class="percentage">
-      <span class="percent-number">0</span>
-      <span class="percent-sign">%</span>
-    </div>
-  </div>
-  <div class="upload">
-    <div class="progress-text"></div>
-    <div id="cancel-upload"
-          data-l10n-id="uploadingPageCancel"></div>
-  </div>
-
-</div>
-
-<div id="share-link" hidden="true">
-  <div class="title" data-l10n-id="uploadSuccessTimingHeader"></div>
-  <div id="share-window">
-    <div id="copy-text"></div>
-    <div id="copy">
-      <input id="link" type="url" value="" readonly/>
-      <button id="copy-btn" class="btn" data-l10n-id="copyUrlFormButton"></button>
-    </div>
-    <button id="delete-file" class="btn" data-l10n-id="deleteFileButton"></button>
-    <a class="send-new" data-state="completed" data-l10n-id="sendAnotherFileLink" href="/"></a>
-  </div>
-</div>
-
-<div id="upload-error" hidden="true">
-  <div class="title" data-l10n-id="errorPageHeader"></div>
-  <div class="expired-description" data-l10n-id="errorPageMessage"></div>
-  <img id="upload-error-img" data-l10n-id="errorAltText" src="../public/resources/illustration_error.svg"/>
-  <a class="send-new" href="/" data-state="errored" data-l10n-id="sendAnotherFileLink"></a>
-</div>