Get demo app working

.gitignore

@@ -41,8 +41,6 @@ build-iPhoneSimulator/
 
 # for a library or gem, you might want to ignore these files since the code is
 # intended to run in multiple environments; otherwise, check them in:
-Gemfile.lock
-.ruby-version
 .ruby-gemset
 .tool-versions
 

demo/.gitignore

@@ -14,3 +14,5 @@
 # Ignore all logfiles and tempfiles.
 /log/*.log
 /tmp
+
+.byebug_history

demo/.ruby-version

@@ -0,0 +1 @@
+2.5.1

demo/Gemfile

@@ -1,16 +1,18 @@
 source 'https://rubygems.org'
 
-gem 'rails', '4.2.7.1'
-gem 'sqlite3'
+gem 'bundler', '1.17.3'
+gem 'rails', '4.2.11'
+gem 'sqlite3', '~> 1.3.6'
 gem 'sass-rails', '~> 4.0.3'
 gem 'uglifier', '>= 1.3.0'
 gem 'coffee-rails', '~> 4.0.0'
 # See https://github.com/sstephenson/execjs#readme for more supported runtimes
 # gem 'therubyracer',  platforms: :ruby
+gem 'byebug'
 
 gem 'jquery-rails'
 gem 'turbolinks'
 
 gem 'devise'
 gem 'devise-two-factor', path: '../'
-gem 'rqrcode-rails3'
+gem 'rqrcode'

demo/Gemfile.lock

@@ -0,0 +1,177 @@
+PATH
+  remote: ..
+  specs:
+    devise-two-factor (3.1.0)
+      activesupport (< 6.1)
+      attr_encrypted (>= 1.3, < 4, != 2)
+      devise (~> 4.0)
+      railties (< 6.1)
+      rotp (~> 2.0)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    actionmailer (4.2.11)
+      actionpack (= 4.2.11)
+      actionview (= 4.2.11)
+      activejob (= 4.2.11)
+      mail (~> 2.5, >= 2.5.4)
+      rails-dom-testing (~> 1.0, >= 1.0.5)
+    actionpack (4.2.11)
+      actionview (= 4.2.11)
+      activesupport (= 4.2.11)
+      rack (~> 1.6)
+      rack-test (~> 0.6.2)
+      rails-dom-testing (~> 1.0, >= 1.0.5)
+      rails-html-sanitizer (~> 1.0, >= 1.0.2)
+    actionview (4.2.11)
+      activesupport (= 4.2.11)
+      builder (~> 3.1)
+      erubis (~> 2.7.0)
+      rails-dom-testing (~> 1.0, >= 1.0.5)
+      rails-html-sanitizer (~> 1.0, >= 1.0.3)
+    activejob (4.2.11)
+      activesupport (= 4.2.11)
+      globalid (>= 0.3.0)
+    activemodel (4.2.11)
+      activesupport (= 4.2.11)
+      builder (~> 3.1)
+    activerecord (4.2.11)
+      activemodel (= 4.2.11)
+      activesupport (= 4.2.11)
+      arel (~> 6.0)
+    activesupport (4.2.11)
+      i18n (~> 0.7)
+      minitest (~> 5.1)
+      thread_safe (~> 0.3, >= 0.3.4)
+      tzinfo (~> 1.1)
+    arel (6.0.4)
+    attr_encrypted (3.1.0)
+      encryptor (~> 3.0.0)
+    bcrypt (3.1.13)
+    builder (3.2.4)
+    byebug (11.1.1)
+    chunky_png (1.3.11)
+    coffee-rails (4.0.1)
+      coffee-script (>= 2.2.0)
+      railties (>= 4.0.0, < 5.0)
+    coffee-script (2.4.1)
+      coffee-script-source
+      execjs
+    coffee-script-source (1.12.2)
+    concurrent-ruby (1.1.6)
+    crass (1.0.6)
+    devise (4.7.1)
+      bcrypt (~> 3.0)
+      orm_adapter (~> 0.1)
+      railties (>= 4.1.0)
+      responders
+      warden (~> 1.2.3)
+    encryptor (3.0.0)
+    erubis (2.7.0)
+    execjs (2.7.0)
+    globalid (0.4.2)
+      activesupport (>= 4.2.0)
+    hike (1.2.3)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
+    jquery-rails (4.3.5)
+      rails-dom-testing (>= 1, < 3)
+      railties (>= 4.2.0)
+      thor (>= 0.14, < 2.0)
+    loofah (2.4.0)
+      crass (~> 1.0.2)
+      nokogiri (>= 1.5.9)
+    mail (2.7.1)
+      mini_mime (>= 0.1.1)
+    mini_mime (1.0.2)
+    mini_portile2 (2.4.0)
+    minitest (5.14.0)
+    multi_json (1.14.1)
+    nokogiri (1.10.8)
+      mini_portile2 (~> 2.4.0)
+    orm_adapter (0.5.0)
+    rack (1.6.13)
+    rack-test (0.6.3)
+      rack (>= 1.0)
+    rails (4.2.11)
+      actionmailer (= 4.2.11)
+      actionpack (= 4.2.11)
+      actionview (= 4.2.11)
+      activejob (= 4.2.11)
+      activemodel (= 4.2.11)
+      activerecord (= 4.2.11)
+      activesupport (= 4.2.11)
+      bundler (>= 1.3.0, < 2.0)
+      railties (= 4.2.11)
+      sprockets-rails
+    rails-deprecated_sanitizer (1.0.3)
+      activesupport (>= 4.2.0.alpha)
+    rails-dom-testing (1.0.9)
+      activesupport (>= 4.2.0, < 5.0)
+      nokogiri (~> 1.6)
+      rails-deprecated_sanitizer (>= 1.0.1)
+    rails-html-sanitizer (1.3.0)
+      loofah (~> 2.3)
+    railties (4.2.11)
+      actionpack (= 4.2.11)
+      activesupport (= 4.2.11)
+      rake (>= 0.8.7)
+      thor (>= 0.18.1, < 2.0)
+    rake (13.0.1)
+    responders (2.4.1)
+      actionpack (>= 4.2.0, < 6.0)
+      railties (>= 4.2.0, < 6.0)
+    rotp (2.1.2)
+    rqrcode (1.1.2)
+      chunky_png (~> 1.0)
+      rqrcode_core (~> 0.1)
+    rqrcode_core (0.1.1)
+    sass (3.2.19)
+    sass-rails (4.0.5)
+      railties (>= 4.0.0, < 5.0)
+      sass (~> 3.2.2)
+      sprockets (~> 2.8, < 3.0)
+      sprockets-rails (~> 2.0)
+    sprockets (2.12.5)
+      hike (~> 1.2)
+      multi_json (~> 1.0)
+      rack (~> 1.0)
+      tilt (~> 1.1, != 1.3.0)
+    sprockets-rails (2.3.3)
+      actionpack (>= 3.0)
+      activesupport (>= 3.0)
+      sprockets (>= 2.8, < 4.0)
+    sqlite3 (1.3.13)
+    thor (1.0.1)
+    thread_safe (0.3.6)
+    tilt (1.4.1)
+    turbolinks (5.2.1)
+      turbolinks-source (~> 5.2)
+    turbolinks-source (5.2.0)
+    tzinfo (1.2.6)
+      thread_safe (~> 0.1)
+    uglifier (4.2.0)
+      execjs (>= 0.3.0, < 3)
+    warden (1.2.7)
+      rack (>= 1.0)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  bundler (= 1.17.3)
+  byebug
+  coffee-rails (~> 4.0.0)
+  devise
+  devise-two-factor!
+  jquery-rails
+  rails (= 4.2.11)
+  rqrcode
+  sass-rails (~> 4.0.3)
+  sqlite3 (~> 1.3.6)
+  turbolinks
+  uglifier (>= 1.3.0)
+
+BUNDLED WITH
+   1.17.3

demo/app/views/home/index.html.erb

@@ -10,10 +10,18 @@
 
   <% if current_user.otp_required_for_login %>
     <%= button_to "Disable 2FA", users_disable_otp_path, :method => :post %>
-    <%= raw RQRCode::render_qrcode(current_user.otp_provisioning_uri(current_user.email, issuer: "Devise-Two-Factor-Demo"),
-                                   :svg,
-                                   :level => :l,
-                                   :unit => 2) %>
+
+    <br />
+    <% code = current_user.otp_provisioning_uri(current_user.email, issuer: "Devise-Two-Factor-Demo") %>
+    <%= RQRCode::QRCode.new(code).as_svg(module_size: 4).html_safe %>
+
+    <br />
+    <p>
+      DEBUG INFO:
+    </p>
+    CODE: <%= code %><br />
+    SECRET: <%= current_user.otp_secret %><br />
+
     <br>
   <% end %>
   <%= link_to "Log out", destroy_user_session_path, :method => :delete %>

demo/config/local_env.yml

@@ -0,0 +1,2 @@
+# update with rake secret
+ENCRYPTION_KEY: "e2d9c3ce555255496121e9e869507a563467c89a0e2f7a89e59635656a9f46fad4b74d07e39a96ee1e40c5644008079dadce515f09f47188974d35b5c1e3fd86"