Implement Two Factor Authentication

Gemfile

@@ -24,6 +24,8 @@ gem 'sweetalert-rails'
 gem 'devise', '~> 4.0'
 gem 'devise-i18n'
 gem 'devise-async'
+gem 'active_model_otp'
+gem 'rqrcode'
 gem 'bootstrap_form'
 gem 'font-kit-rails'
 gem 'nprogress-rails'

Gemfile.lock

@@ -59,6 +59,9 @@ GEM
       erubi (~> 1.4)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.3)
+    active_model_otp (2.0.1)
+      activemodel
+      rotp (~> 5.0.0)
     activejob (5.2.4.3)
       activesupport (= 5.2.4.3)
       globalid (>= 0.3.6)
@@ -84,8 +87,8 @@ GEM
     addressable (2.7.0)
       public_suffix (>= 2.0.2, < 5.0)
     arel (9.0.0)
-    ast (2.4.0)
+    ast (2.4.1)
-    autoprefixer-rails (9.7.6)
+    autoprefixer-rails (9.8.5)
       execjs
     bcrypt (3.1.13)
     better_errors (2.7.1)
@@ -110,7 +113,7 @@ GEM
     buftok (0.2.0)
     builder (3.2.4)
     byebug (11.1.3)
-    capybara (3.32.2)
+    capybara (3.33.0)
       addressable
       mini_mime (>= 0.1.3)
       nokogiri (~> 1.8)
@@ -125,8 +128,9 @@ GEM
       image_processing (~> 1.1)
       mimemagic (>= 0.3.0)
       mini_mime (>= 0.1.3)
+    chunky_png (1.3.12)
     cliver (0.3.2)
-    coderay (1.1.2)
+    coderay (1.1.3)
     coffee-rails (4.2.2)
       coffee-script (>= 2.2.0)
       railties (>= 4.0.0)
@@ -140,7 +144,7 @@ GEM
     crass (1.0.6)
     database_cleaner (1.8.5)
     debug_inspector (0.0.3)
-    devise (4.7.1)
+    devise (4.7.2)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
       railties (>= 4.1.0)
@@ -151,19 +155,19 @@ GEM
       devise (>= 4.0)
     devise-i18n (1.9.1)
       devise (>= 4.7.1)
-    diff-lcs (1.3)
+    diff-lcs (1.4.4)
     docile (1.3.2)
     domain_name (0.5.20190701)
       unf (>= 0.0.5, < 1.0.0)
     equalizer (0.0.11)
     erubi (1.9.0)
-    excon (0.73.0)
+    excon (0.75.0)
     execjs (2.7.0)
-    factory_bot (5.2.0)
+    factory_bot (6.1.0)
-      activesupport (>= 4.2.0)
+      activesupport (>= 5.0.0)
-    factory_bot_rails (5.2.0)
+    factory_bot_rails (6.1.0)
-      factory_bot (~> 5.2.0)
+      factory_bot (~> 6.1.0)
-      railties (>= 4.2.0)
+      railties (>= 5.0.0)
     fake_email_validator (1.0.11)
       activemodel
       mail
@@ -173,11 +177,11 @@ GEM
       multipart-post (>= 1.2, < 3)
     faraday_middleware (1.0.0)
       faraday (~> 1.0)
-    ffi (1.12.2)
+    ffi (1.13.1)
     ffi-compiler (1.0.1)
       ffi (>= 1.0.0)
       rake
-    fog-aws (3.6.5)
+    fog-aws (3.6.6)
       fog-core (~> 2.1)
       fog-json (~> 1.1)
       fog-xml (~> 0.1)
@@ -236,7 +240,7 @@ GEM
     http-parser (1.2.1)
       ffi-compiler (>= 1.0, < 2.0)
     http_parser.rb (0.6.0)
-    httparty (0.18.0)
+    httparty (0.18.1)
       mime-types (~> 3.0)
       multi_xml (>= 0.5.2)
     i18n (0.9.5)
@@ -261,7 +265,7 @@ GEM
       turbolinks
     jquery-ui-rails (6.0.1)
       railties (>= 3.2.16)
-    json (2.3.0)
+    json (2.3.1)
     kaminari (1.2.1)
       activesupport (>= 4.1.0)
       kaminari-actionview (= 1.2.1)
@@ -281,10 +285,10 @@ GEM
     listen (3.2.1)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
-    loofah (2.5.0)
+    loofah (2.6.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
-    lumberjack (1.2.4)
+    lumberjack (1.2.6)
     mail (2.7.1)
       mini_mime (>= 0.1.1)
     marcel (0.3.3)
@@ -304,15 +308,15 @@ GEM
       momentjs-rails (>= 2.10.5, <= 3.0.0)
     momentjs-rails (2.20.1)
       railties (>= 3.1)
-    multi_json (1.14.1)
+    multi_json (1.15.0)
     multi_xml (0.6.0)
     multipart-post (2.1.1)
     naught (1.1.0)
     nenv (0.3.0)
     nested_form (0.3.2)
-    newrelic_rpm (6.10.0.364)
+    newrelic_rpm (6.11.0.365)
     nio4r (2.5.2)
-    nokogiri (1.10.9)
+    nokogiri (1.10.10)
       mini_portile2 (~> 2.4.0)
     nokogumbo (2.0.2)
       nokogiri (~> 1.8, >= 1.8.4)
@@ -334,9 +338,9 @@ GEM
       omniauth-oauth (~> 1.1)
       rack
     orm_adapter (0.5.0)
-    parallel (1.19.1)
+    parallel (1.19.2)
-    parser (2.7.1.2)
+    parser (2.7.1.4)
-      ast (~> 2.4.0)
+      ast (~> 2.4.1)
     pg (1.2.3)
     pghero (2.7.0)
       activerecord (>= 5)
@@ -375,10 +379,10 @@ GEM
     rails-assets-growl (1.3.5)
       rails-assets-jquery
     rails-assets-jquery (2.2.4)
-    rails-controller-testing (1.0.4)
+    rails-controller-testing (1.0.5)
-      actionpack (>= 5.0.1.x)
+      actionpack (>= 5.0.1.rc1)
-      actionview (>= 5.0.1.x)
+      actionview (>= 5.0.1.rc1)
-      activesupport (>= 5.0.1.x)
+      activesupport (>= 5.0.1.rc1)
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
@@ -412,13 +416,19 @@ GEM
       ffi (~> 1.0)
     redcarpet (3.5.0)
     redis (4.1.4)
-    regexp_parser (1.7.0)
+    regexp_parser (1.7.1)
     remotipart (1.4.4)
-    responders (3.0.0)
+    responders (3.0.1)
       actionpack (>= 5.0)
       railties (>= 5.0)
     rexml (3.2.4)
-    rolify (5.2.0)
+    rolify (5.3.0)
+    rotp (5.0.0)
+      addressable (~> 2.5)
+    rqrcode (1.1.2)
+      chunky_png (~> 1.0)
+      rqrcode_core (~> 0.1)
+    rqrcode_core (0.1.2)
     rspec-core (3.9.2)
       rspec-support (~> 3.9.3)
     rspec-expectations (3.9.2)
@@ -438,19 +448,20 @@ GEM
       rspec-expectations (~> 3.9.0)
       rspec-mocks (~> 3.9.0)
       rspec-support (~> 3.9.0)
-    rspec-sidekiq (3.0.3)
+    rspec-sidekiq (3.1.0)
       rspec-core (~> 3.0, >= 3.0.0)
       sidekiq (>= 2.4.0)
     rspec-support (3.9.3)
-    rubocop (0.84.0)
+    rubocop (0.88.0)
       parallel (~> 1.10)
-      parser (>= 2.7.0.1)
+      parser (>= 2.7.1.1)
       rainbow (>= 2.2.2, < 4.0)
+      regexp_parser (>= 1.7)
       rexml
-      rubocop-ast (>= 0.0.3)
+      rubocop-ast (>= 0.1.0, < 1.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 1.4.0, < 2.0)
-    rubocop-ast (0.0.3)
+    rubocop-ast (0.1.0)
       parser (>= 2.7.0.1)
     ruby-progressbar (1.10.1)
     ruby-vips (2.0.17)
@@ -470,7 +481,7 @@ GEM
       sprockets (>= 2.8, < 4.0)
       sprockets-rails (>= 2.0, < 4.0)
       tilt (>= 1.1, < 3)
-    sassc (2.3.0)
+    sassc (2.4.0)
       ffi (~> 1.9)
     sassc-rails (2.1.2)
       railties (>= 4.0.0)
@@ -540,7 +551,7 @@ GEM
       activemodel (>= 5.0)
       bindex (>= 0.4.0)
       railties (>= 5.0)
-    websocket-driver (0.7.2)
+    websocket-driver (0.7.3)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.5)
     xpath (3.2.0)
@@ -550,6 +561,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
+  active_model_otp
   bcrypt (~> 3.1.7)
   better_errors
   binding_of_caller
@@ -609,6 +621,7 @@ DEPENDENCIES
   redcarpet
   redis
   rolify (~> 5.2)
+  rqrcode
   rspec-its (~> 1.3)
   rspec-mocks
   rspec-rails (~> 3.9)

app/controllers/user/sessions_controller.rb

@@ -0,0 +1,42 @@
+class User::SessionsController < Devise::SessionsController
+  def create
+    if session.has_key?(:user_sign_in_uid)
+      self.resource = User.find(session[:user_sign_in_uid])
+      session.delete(:user_sign_in_uid)
+    else
+      self.resource = warden.authenticate!(auth_options)
+    end
+
+    if resource.active_for_authentication? && !resource.otp_secret_key.nil?
+      if params[:user][:otp_attempt].blank?
+        session[:user_sign_in_uid] = resource.id
+        sign_out(resource)
+        redirect_to user_two_factor_entry_url
+      else
+        if resource.authenticate_otp(params[:user][:otp_attempt])
+          continue_sign_in(resource, resource_name)
+        else
+          sign_out(resource)
+          flash[:error] = t('devise.failure.invalid')
+          redirect_to root_url
+        end
+      end
+    else
+      continue_sign_in(resource, resource_name)
+    end
+  end
+
+  def two_factor_entry
+    self.resource = User.find(session[:user_sign_in_uid])
+    render 'auth/two_factor_authentication'
+  end
+
+  private
+
+  def continue_sign_in(resource, resource_name)
+    set_flash_message!(:notice, :signed_in)
+    sign_in(resource_name, resource)
+    yield resource if block_given?
+    respond_with resource, location: after_sign_in_path_for(resource)
+  end
+end

app/controllers/user_controller.rb

@@ -172,4 +172,33 @@ class UserController < ApplicationController
 
     redirect_to user_export_path
   end
+
+  def edit_security
+    current_user.otp_secret_key = User.otp_random_secret
+
+    @provisioning_uri = current_user.provisioning_uri(nil, issuer: APP_CONFIG[:hostname])
+    qr_code = RQRCode::QRCode.new(@provisioning_uri, :size => 12, :level => :h)
+    @qr_svg = qr_code.as_svg(offset: 0, color: '000',
+                         shape_rendering: 'crispEdges',
+                         module_size: 4)
+  end
+
+  def update_2fa
+    req_params = params.require(:user).permit(:otp_secret_key, :otp_validation)
+    
+    current_user.otp_secret_key = req_params[:otp_secret_key]
+
+    if current_user.authenticate_otp(req_params[:otp_validation])
+      flash[:success] = 'yay'
+      current_user.save!
+    else
+      flash[:error] = current_user.otp_code
+    end
+
+    redirect_to edit_user_security_path
+  end
+
+  def destroy_2fa
+
+  end
 end

app/models/user.rb

@@ -4,6 +4,7 @@ class User < ApplicationRecord
   include User::QuestionMethods
   include User::RelationshipMethods
   include User::TimelineMethods
+  include ActiveModel::OneTimePassword
 
   # Include default devise modules. Others available are:
   # :confirmable, :lockable, :timeoutable and :omniauthable
@@ -11,6 +12,9 @@ class User < ApplicationRecord
          :recoverable, :rememberable, :trackable,
          :validatable, :confirmable, :authentication_keys => [:login]
 
+  has_one_time_password
+  attr_accessor :otp_attempt, :otp_validation
+
   rolify
 
 #   attr_accessor :login

app/views/auth/two_factor_authentication.haml

@@ -0,0 +1,14 @@
+.container
+  .row
+    .col-sm-4.offset-sm-4
+      = render 'layouts/messages'
+      .card.mt-3
+        .card-body
+          %h1.mb-3.mt-0= t('views.auth.2fa.title')
+          = bootstrap_form_for(resource, as: resource_name, url: session_path(resource_name), method: :post) do |f|
+
+            = f.text_field :otp_attempt, autofocus: true, label: t('views.auth.2fa.otp_field')
+
+            = f.submit t('views.sessions.create'), class: 'btn btn-primary mt-3 mb-3'
+
+= render 'shared/links'

app/views/settings/_security.haml

@@ -0,0 +1,15 @@
+.card
+  .card-body
+    %h2= t('views.settings.security.2fa.title')
+    - if current_user.otp_secret_key.nil?
+      = bootstrap_form_for(current_user, url: { action: :update_2fa, method: :post }) do |f|
+        %a{:href => "https://play.google.com/store/apps/details?id=com.beemdevelopment.aegis"} Aegis Authenticator for Android
+        %a{:href => "https://apps.apple.com/gb/app/strongbox-authenticator/id1023839880"} Strongbox Authenticator for iOS
+        = RQRCode::QRCode.new(current_user.provisioning_uri("Retrospring:#{current_user.screen_name}", issuer: "Retrospring")).as_svg.html_safe
+        %pre= current_user.otp_secret_key
+        = f.text_field :otp_validation
+        = f.hidden_field :otp_secret_key, value: current_user.otp_secret_key
+        = f.submit t('views.actions.save'), class: 'btn btn-primary'
+    - else
+      %p= t('views.settings.security.2fa.enabled_hint')
+      = link_to t('views.actions.remove'), destroy_user_2fa_path, :class => 'btn btn-primary', :method => 'delete'

app/views/tabs/_settings.haml

@@ -3,6 +3,7 @@
     = list_group_item t('views.settings.tabs.account'), edit_user_registration_path
     = list_group_item t('views.settings.tabs.profile'), edit_user_profile_path
     = list_group_item t('views.settings.tabs.privacy'), edit_user_privacy_path
+    = list_group_item t('views.settings.tabs.security'), edit_user_security_path
     = list_group_item t('views.settings.tabs.sharing'), services_path
     = list_group_item 'Theme', edit_user_theme_path
     = list_group_item 'Your Data', user_data_path

app/views/user/edit_security.haml

@@ -0,0 +1,4 @@
+= render 'settings/security'
+
+- provide(:title, generate_title('Security Settings'))
+- parent_layout 'user/settings'

config/locales/en.yml

@@ -377,6 +377,7 @@ en:
         profile: "Profile"
         privacy: "Privacy"
         sharing: "Sharing"
+        security: "Security"
       account:
         modal:
           title: "Save account changes"
@@ -415,6 +416,9 @@ en:
         connect: "Connect to %{service}"
         disconnect: "Disconnect"
         confirm: "Really disconnect service %{service}?"
+      security:
+        2fa:
+          title: "Two-factor authentication"
     modal:
       ask:
         title: "Ask your followers"
@@ -443,3 +447,7 @@ en:
         admin: "Admin"
         moderator: "Moderator"
         banned: "Banned"
+    auth:
+      2fa:
+        title: "Two-factor authentication"
+        otp_field: "One-time password"

config/routes.rb

@@ -48,7 +48,8 @@ Rails.application.routes.draw do
   as :user do
     # :sessions
     get 'sign_in' => 'devise/sessions#new', as: :new_user_session
-    post 'sign_in' => 'devise/sessions#create', as: :user_session
+    post 'sign_in' => 'user/sessions#create', as: :user_session
+    get 'otp_auth' => 'user/sessions#two_factor_entry', as: :user_two_factor_entry
     delete 'sign_out' => 'devise/sessions#destroy', as: :destroy_user_session
     # :registrations
     get 'settings/delete_account' => 'devise/registrations#cancel', as: :cancel_user_registration
@@ -67,6 +68,10 @@ Rails.application.routes.draw do
   match '/settings/theme', to: 'user#update_theme', via: 'patch', as: :update_user_theme
   match '/settings/theme/delete', to: 'user#delete_theme', via: 'delete', as: :delete_user_theme
 
+  match '/settings/security', to: 'user#edit_security', via: :get, as: :edit_user_security
+  match '/settings/security/2fa', to: 'user#update_2fa', via: :patch, as: :update_user_2fa
+  match '/settings/security/2fa', to: 'user#destroy_2fa', via: :delete, as: :destroy_user_2fa
+
   # resources :services, only: [:index, :destroy]
   match '/settings/services', to: 'services#index', via: 'get', as: :services
   match '/settings/services/:id', to: 'services#destroy', via: 'delete', as: :service

db/migrate/20201001172537_add_otp_secret_key_to_users.rb

@@ -0,0 +1,5 @@
+class AddOtpSecretKeyToUsers < ActiveRecord::Migration[5.2]
+  def change
+    add_column :users, :otp_secret_key, :string
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2020_07_04_163504) do
+ActiveRecord::Schema.define(version: 2020_10_01_172537) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -273,6 +273,7 @@ ActiveRecord::Schema.define(version: 2020_07_04_163504) do
     t.string "export_url"
     t.boolean "export_processing", default: false, null: false
     t.datetime "export_created_at"
+    t.string "otp_secret_key"
     t.index ["confirmation_token"], name: "index_users_on_confirmation_token", unique: true
     t.index ["email"], name: "index_users_on_email", unique: true
     t.index ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true