Initial commit

.gitignore

+# See https://help.github.com/articles/ignoring-files for more about ignoring files.
+#
+# If you find yourself ignoring temporary files generated by your text editor
+# or operating system, you probably want to add a global ignore instead:
+#   git config --global core.excludesfile '~/.gitignore_global'
+
+# Ignore bundler config.
+/.bundle
+
+# Ignore all logfiles and tempfiles.
+/log/*
+/tmp/*
+!/log/.keep
+!/tmp/.keep
+
+# Ignore Byebug command history file.
+.byebug_history
+.env

Gemfile

+source 'https://rubygems.org'
+
+gem 'rails', '~> 5.0.0', '>= 5.0.0.1'
+gem 'pg', '~> 0.18'
+gem 'puma', '~> 3.0'
+gem 'sass-rails', '~> 5.0'
+
+gem 'mastodon-api', require: 'mastodon'
+gem 'twitter', git: 'https://github.com/sferik/twitter'
+gem 'devise'
+gem 'omniauth-twitter'
+gem 'omniauth-mastodon'
+
+group :development, :test do
+  gem 'pry'
+  gem 'dotenv-rails'
+end
+
+group :development do
+  gem 'listen', '~> 3.0.5'
+  gem 'spring'
+  gem 'spring-watcher-listen', '~> 2.0.0'
+end
+
+gem 'rails_12factor', group: :production
+gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
+
+ruby '2.2.4'

Gemfile.lock

+GIT
+  remote: https://github.com/sferik/twitter
+  revision: aa909b3b7733ca619d80f1c8cba961033d1fc7e6
+  specs:
+    twitter (5.15.0)
+      addressable (~> 2.3)
+      buftok (~> 0.2.0)
+      equalizer (~> 0.0.11)
+      http (~> 2.0)
+      http-form_data (~> 1.0)
+      http_parser.rb (~> 0.6.0)
+      memoizable (~> 0.4.0)
+      multipart-post (~> 2.0)
+      naught (~> 1.0)
+      simple_oauth (~> 0.3.0)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    actioncable (5.0.0.1)
+      actionpack (= 5.0.0.1)
+      nio4r (~> 1.2)
+      websocket-driver (~> 0.6.1)
+    actionmailer (5.0.0.1)
+      actionpack (= 5.0.0.1)
+      actionview (= 5.0.0.1)
+      activejob (= 5.0.0.1)
+      mail (~> 2.5, >= 2.5.4)
+      rails-dom-testing (~> 2.0)
+    actionpack (5.0.0.1)
+      actionview (= 5.0.0.1)
+      activesupport (= 5.0.0.1)
+      rack (~> 2.0)
+      rack-test (~> 0.6.3)
+      rails-dom-testing (~> 2.0)
+      rails-html-sanitizer (~> 1.0, >= 1.0.2)
+    actionview (5.0.0.1)
+      activesupport (= 5.0.0.1)
+      builder (~> 3.1)
+      erubis (~> 2.7.0)
+      rails-dom-testing (~> 2.0)
+      rails-html-sanitizer (~> 1.0, >= 1.0.2)
+    activejob (5.0.0.1)
+      activesupport (= 5.0.0.1)
+      globalid (>= 0.3.6)
+    activemodel (5.0.0.1)
+      activesupport (= 5.0.0.1)
+    activerecord (5.0.0.1)
+      activemodel (= 5.0.0.1)
+      activesupport (= 5.0.0.1)
+      arel (~> 7.0)
+    activesupport (5.0.0.1)
+      concurrent-ruby (~> 1.0, >= 1.0.2)
+      i18n (~> 0.7)
+      minitest (~> 5.1)
+      tzinfo (~> 1.1)
+    addressable (2.4.0)
+    arel (7.1.4)
+    bcrypt (3.1.11)
+    buftok (0.2.0)
+    builder (3.2.2)
+    coderay (1.1.1)
+    concurrent-ruby (1.0.2)
+    devise (4.2.0)
+      bcrypt (~> 3.0)
+      orm_adapter (~> 0.1)
+      railties (>= 4.1.0, < 5.1)
+      responders
+      warden (~> 1.2.3)
+    domain_name (0.5.20160826)
+      unf (>= 0.0.5, < 1.0.0)
+    dotenv (2.1.1)
+    dotenv-rails (2.1.1)
+      dotenv (= 2.1.1)
+      railties (>= 4.0, < 5.1)
+    equalizer (0.0.11)
+    erubis (2.7.0)
+    faraday (0.9.2)
+      multipart-post (>= 1.2, < 3)
+    ffi (1.9.14)
+    globalid (0.3.7)
+      activesupport (>= 4.1.0)
+    hashie (3.4.6)
+    http (2.0.3)
+      addressable (~> 2.3)
+      http-cookie (~> 1.0)
+      http-form_data (~> 1.0.1)
+      http_parser.rb (~> 0.6.0)
+    http-cookie (1.0.3)
+      domain_name (~> 0.5)
+    http-form_data (1.0.1)
+    http_parser.rb (0.6.0)
+    i18n (0.7.0)
+    json (1.8.3)
+    jwt (1.5.6)
+    listen (3.0.8)
+      rb-fsevent (~> 0.9, >= 0.9.4)
+      rb-inotify (~> 0.9, >= 0.9.7)
+    loofah (2.0.3)
+      nokogiri (>= 1.5.9)
+    mail (2.6.4)
+      mime-types (>= 1.16, < 4)
+    mastodon-api (1.0.0)
+      addressable (~> 2.4)
+      http (~> 2.0)
+    memoizable (0.4.2)
+      thread_safe (~> 0.3, >= 0.3.1)
+    method_source (0.8.2)
+    mime-types (3.1)
+      mime-types-data (~> 3.2015)
+    mime-types-data (3.2016.0521)
+    mini_portile2 (2.1.0)
+    minitest (5.9.1)
+    multi_json (1.12.1)
+    multi_xml (0.5.5)
+    multipart-post (2.0.0)
+    naught (1.1.0)
+    nio4r (1.2.1)
+    nokogiri (1.6.8.1)
+      mini_portile2 (~> 2.1.0)
+    oauth (0.5.1)
+    oauth2 (1.2.0)
+      faraday (>= 0.8, < 0.10)
+      jwt (~> 1.0)
+      multi_json (~> 1.3)
+      multi_xml (~> 0.5)
+      rack (>= 1.2, < 3)
+    omniauth (1.3.1)
+      hashie (>= 1.2, < 4)
+      rack (>= 1.0, < 3)
+    omniauth-mastodon (0.9.1)
+      omniauth (~> 1.0)
+      omniauth-oauth2 (~> 1.1)
+    omniauth-oauth (1.1.0)
+      oauth
+      omniauth (~> 1.0)
+    omniauth-oauth2 (1.4.0)
+      oauth2 (~> 1.0)
+      omniauth (~> 1.2)
+    omniauth-twitter (1.2.1)
+      json (~> 1.3)
+      omniauth-oauth (~> 1.1)
+    orm_adapter (0.5.0)
+    pg (0.19.0)
+    pry (0.10.4)
+      coderay (~> 1.1.0)
+      method_source (~> 0.8.1)
+      slop (~> 3.4)
+    puma (3.6.0)
+    rack (2.0.1)
+    rack-test (0.6.3)
+      rack (>= 1.0)
+    rails (5.0.0.1)
+      actioncable (= 5.0.0.1)
+      actionmailer (= 5.0.0.1)
+      actionpack (= 5.0.0.1)
+      actionview (= 5.0.0.1)
+      activejob (= 5.0.0.1)
+      activemodel (= 5.0.0.1)
+      activerecord (= 5.0.0.1)
+      activesupport (= 5.0.0.1)
+      bundler (>= 1.3.0, < 2.0)
+      railties (= 5.0.0.1)
+      sprockets-rails (>= 2.0.0)
+    rails-dom-testing (2.0.1)
+      activesupport (>= 4.2.0, < 6.0)
+      nokogiri (~> 1.6.0)
+    rails-html-sanitizer (1.0.3)
+      loofah (~> 2.0)
+    rails_12factor (0.0.3)
+      rails_serve_static_assets
+      rails_stdout_logging
+    rails_serve_static_assets (0.0.5)
+    rails_stdout_logging (0.0.5)
+    railties (5.0.0.1)
+      actionpack (= 5.0.0.1)
+      activesupport (= 5.0.0.1)
+      method_source
+      rake (>= 0.8.7)
+      thor (>= 0.18.1, < 2.0)
+    rake (11.3.0)
+    rb-fsevent (0.9.7)
+    rb-inotify (0.9.7)
+      ffi (>= 0.5.0)
+    responders (2.3.0)
+      railties (>= 4.2.0, < 5.1)
+    sass (3.4.22)
+    sass-rails (5.0.6)
+      railties (>= 4.0.0, < 6)
+      sass (~> 3.1)
+      sprockets (>= 2.8, < 4.0)
+      sprockets-rails (>= 2.0, < 4.0)
+      tilt (>= 1.1, < 3)
+    simple_oauth (0.3.1)
+    slop (3.6.0)
+    spring (2.0.0)
+      activesupport (>= 4.2)
+    spring-watcher-listen (2.0.1)
+      listen (>= 2.7, < 4.0)
+      spring (>= 1.2, < 3.0)
+    sprockets (3.7.0)
+      concurrent-ruby (~> 1.0)
+      rack (> 1, < 3)
+    sprockets-rails (3.2.0)
+      actionpack (>= 4.0)
+      activesupport (>= 4.0)
+      sprockets (>= 3.0.0)
+    thor (0.19.1)
+    thread_safe (0.3.5)
+    tilt (2.0.5)
+    tzinfo (1.2.2)
+      thread_safe (~> 0.1)
+    unf (0.1.4)
+      unf_ext
+    unf_ext (0.0.7.2)
+    warden (1.2.6)
+      rack (>= 1.0)
+    websocket-driver (0.6.4)
+      websocket-extensions (>= 0.1.0)
+    websocket-extensions (0.1.2)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  devise
+  dotenv-rails
+  listen (~> 3.0.5)
+  mastodon-api
+  omniauth-mastodon
+  omniauth-twitter
+  pg (~> 0.18)
+  pry
+  puma (~> 3.0)
+  rails (~> 5.0.0, >= 5.0.0.1)
+  rails_12factor
+  sass-rails (~> 5.0)
+  spring
+  spring-watcher-listen (~> 2.0.0)
+  twitter!
+  tzinfo-data
+
+RUBY VERSION
+   ruby 2.2.4p230
+
+BUNDLED WITH
+   1.13.0

README.md

+# README
+
+This README would normally document whatever steps are necessary to get the
+application up and running.
+
+Things you may want to cover:
+
+* Ruby version
+
+* System dependencies
+
+* Configuration
+
+* Database creation
+
+* Database initialization
+
+* How to run the test suite
+
+* Services (job queues, cache servers, search engines, etc.)
+
+* Deployment instructions
+
+* ...

Rakefile

+# Add your own tasks in files placed in lib/tasks ending in .rake,
+# for example lib/tasks/capistrano.rake, and they will automatically be available to Rake.
+
+require_relative 'config/application'
+
+Rails.application.load_tasks

app/assets/config/manifest.js

+//= link_tree ../images
+//= link_directory ../stylesheets .css

app/assets/javascripts/friends.js

+// Place all the behaviors and hooks related to the matching controller here.
+// All this logic will automatically be available in application.js.

app/assets/javascripts/home.js

+// Place all the behaviors and hooks related to the matching controller here.
+// All this logic will automatically be available in application.js.

app/assets/javascripts/users/omniauth_callbacks.js

+// Place all the behaviors and hooks related to the matching controller here.
+// All this logic will automatically be available in application.js.

app/assets/stylesheets/application.css

+/*
+ * This is a manifest file that'll be compiled into application.css, which will include all the files
+ * listed below.
+ *
+ * Any CSS and SCSS file within this directory, lib/assets/stylesheets, vendor/assets/stylesheets,
+ * or any plugin's vendor/assets/stylesheets directory can be referenced here using a relative path.
+ *
+ * You're free to add application-wide styles to this file and they'll appear at the bottom of the
+ * compiled file so the styles you add here take precedence over styles defined in any other CSS/SCSS
+ * files in this directory. Styles in this file should be added after the last require_* statement.
+ * It is generally better to create a new file per style scope.
+ *
+ *= require_tree .
+ *= require_self
+ */

app/assets/stylesheets/friends.scss

+// Place all the styles related to the friends controller here.
+// They will automatically be included in application.css.
+// You can use Sass (SCSS) here: http://sass-lang.com/

app/assets/stylesheets/home.scss

+// Place all the styles related to the home controller here.
+// They will automatically be included in application.css.
+// You can use Sass (SCSS) here: http://sass-lang.com/

app/assets/stylesheets/users/omniauth_callbacks.scss

+// Place all the styles related to the Users::OmniauthCallbacks controller here.
+// They will automatically be included in application.css.
+// You can use Sass (SCSS) here: http://sass-lang.com/

app/controllers/application_controller.rb

+class ApplicationController < ActionController::Base
+  protect_from_forgery with: :exception
+end

app/controllers/friends_controller.rb

+require 'twitter'
+
+class FriendsController < ApplicationController
+  before_action :authenticate_user!
+
+  def index
+    fetch_twitter_followees
+    fetch_related_mastodons
+  end
+
+  private
+
+  def fetch_twitter_followees
+    @twitter_friend_ids = twitter_client.friend_ids
+  end
+
+  def fetch_related_mastodons
+    @friends = User.where(id: Authorization.where(provider: :twitter, uid: @twitter_friend_ids.to_a).pluck(:user_id)).includes(:authorizations)
+  end
+
+  def twitter_client
+    @twitter_client ||= Twitter::REST::Client.new do |config|
+      authorization = current_user.authorizations.find_by(provider: :twitter)
+
+      config.consumer_key        = ENV['TWITTER_CLIENT_ID']
+      config.consumer_secret     = ENV['TWITTER_CLIENT_SECRET']
+      config.access_token        = authorization.try(:token)
+      config.access_token_secret = authorization.try(:secret)
+    end
+  end
+end

app/controllers/home_controller.rb

+class HomeController < ApplicationController
+  def index
+  end
+end

app/controllers/users/omniauth_callbacks_controller.rb

+class Users::OmniauthCallbacksController < Devise::OmniauthCallbacksController
+  def all
+    user = User.from_omniauth(request.env['omniauth.auth'], current_user)
+
+    if user.persisted?
+      sign_in_and_redirect(user)
+    else
+      redirect_to root_path
+    end
+  end
+
+  alias_method :twitter, :all
+  alias_method :mastodon, :all
+
+  def failure
+    redirect_to root_path
+  end
+end

app/helpers/application_helper.rb

+module ApplicationHelper
+end

app/helpers/friends_helper.rb

+module FriendsHelper
+end

app/helpers/home_helper.rb

+module HomeHelper
+end

app/helpers/users/omniauth_callbacks_helper.rb

+module Users::OmniauthCallbacksHelper
+end

app/jobs/application_job.rb

+class ApplicationJob < ActiveJob::Base
+end

app/mailers/application_mailer.rb

+class ApplicationMailer < ActionMailer::Base
+  default from: 'from@example.com'
+  layout 'mailer'
+end

app/models/application_record.rb

+class ApplicationRecord < ActiveRecord::Base
+  self.abstract_class = true
+end

app/models/authorization.rb

+class Authorization < ApplicationRecord
+  belongs_to :user, inverse_of: :authorizations
+end

app/models/mastodon_client.rb

+class MastodonClient < ApplicationRecord
+end

app/models/user.rb

+class User < ApplicationRecord
+  devise :omniauthable, omniauth_providers: [:twitter, :mastodon]
+
+  has_many :authorizations
+
+  class << self
+    def from_omniauth(auth, current_user)
+      authorization = Authorization.where(provider: auth.provider, uid: auth.uid.to_s).first_or_initialize
+      user = current_user || User.new
+      authorization.user   = user
+      authorization.token  = auth.credentials.token
+      authorization.secret = auth.credentials.secret
+      authorization.save
+      authorization.user
+    end
+  end
+end

app/views/friends/index.html.erb

+<table>
+  <thead>
+    <tr>
+      <th>Twitter user</th>
+      <th>Mastodon user</th>
+    </tr>
+  </thead>
+
+  <tbody>
+    <% @friends.each do |user| %>
+      <tr>
+        <td><%= @twitter_map[user.authorizations.find_by(provider: :twitter).uid].screen_name %></td>
+        <td><%= user.authorizations.find_by(provider: :mastodon).try(:uid) %></td>
+      </tr>
+    <% end %>
+  </tbody>
+</table>

app/views/home/index.html.erb

+<ul>
+  <li><%= link_to "Sign in with Twitter", user_twitter_omniauth_authorize_path %></li>
+  <li><%= link_to "Sign in with Mastodon", user_mastodon_omniauth_authorize_path %></li>
+</li>
+
+<% if user_signed_in? %>
+  <p>You are signed in:</p>
+
+  <table>
+    <tbody>
+      <tr>
+        <th>Twitter</th>
+        <td><%= current_user.authorizations.find_by(provider: :twitter).try(:uid) %></td>
+      </tr>
+
+      <tr>
+        <th>Mastodon</th>
+        <td><%= current_user.authorizations.find_by(provider: :mastodon).try(:uid) %></td>
+      </tr>
+    </tbody>
+  </table>
+
+  <p><%= link_to "Find friends on Mastodon", friends_path %></p>
+<% else %>
+  <p>You are not signed in</p>
+<% end %>

app/views/layouts/application.html.erb

+<!DOCTYPE html>
+<html>
+  <head>
+    <title>MastodonBridge</title>
+    <%= csrf_meta_tags %>
+
+    <%= stylesheet_link_tag    'application', media: 'all' %>
+  </head>
+
+  <body>
+    <%= yield %>
+  </body>
+</html>

app/views/layouts/mailer.html.erb

+<!DOCTYPE html>
+<html>
+  <head>
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+    <style>
+      /* Email styles need to be inline */
+    </style>
+  </head>
+
+  <body>
+    <%= yield %>
+  </body>
+</html>

app/views/layouts/mailer.text.erb

+<%= yield %>

bin/bundle

+#!/usr/bin/env ruby
+ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../../Gemfile', __FILE__)
+load Gem.bin_path('bundler', 'bundle')

bin/rails

+#!/usr/bin/env ruby
+APP_PATH = File.expand_path('../config/application', __dir__)
+require_relative '../config/boot'
+require 'rails/commands'

bin/rake

+#!/usr/bin/env ruby
+require_relative '../config/boot'
+require 'rake'
+Rake.application.run

bin/setup

+#!/usr/bin/env ruby
+require 'pathname'
+require 'fileutils'
+include FileUtils
+
+# path to your application root.
+APP_ROOT = Pathname.new File.expand_path('../../', __FILE__)
+
+def system!(*args)
+  system(*args) || abort("\n== Command #{args} failed ==")
+end
+
+chdir APP_ROOT do
+  # This script is a starting point to setup your application.
+  # Add necessary setup steps to this file.
+
+  puts '== Installing dependencies =='
+  system! 'gem install bundler --conservative'
+  system('bundle check') || system!('bundle install')
+
+  # puts "\n== Copying sample files =="
+  # unless File.exist?('config/database.yml')
+  #   cp 'config/database.yml.sample', 'config/database.yml'
+  # end
+
+  puts "\n== Preparing database =="
+  system! 'bin/rails db:setup'
+
+  puts "\n== Removing old logs and tempfiles =="
+  system! 'bin/rails log:clear tmp:clear'
+
+  puts "\n== Restarting application server =="
+  system! 'bin/rails restart'
+end

bin/update

+#!/usr/bin/env ruby
+require 'pathname'
+require 'fileutils'
+include FileUtils
+
+# path to your application root.
+APP_ROOT = Pathname.new File.expand_path('../../', __FILE__)
+
+def system!(*args)
+  system(*args) || abort("\n== Command #{args} failed ==")
+end
+
+chdir APP_ROOT do
+  # This script is a way to update your development environment automatically.
+  # Add necessary update steps to this file.
+
+  puts '== Installing dependencies =='
+  system! 'gem install bundler --conservative'
+  system('bundle check') || system!('bundle install')
+
+  puts "\n== Updating database =="
+  system! 'bin/rails db:migrate'
+
+  puts "\n== Removing old logs and tempfiles =="
+  system! 'bin/rails log:clear tmp:clear'
+
+  puts "\n== Restarting application server =="
+  system! 'bin/rails restart'
+end

config.ru

+# This file is used by Rack-based servers to start the application.
+
+require_relative 'config/environment'
+
+run Rails.application

config/application.rb

+require_relative 'boot'
+
+require "rails"
+# Pick the frameworks you want:
+require "active_model/railtie"
+require "active_job/railtie"
+require "active_record/railtie"
+require "action_controller/railtie"
+require "action_mailer/railtie"
+require "action_view/railtie"
+# require "action_cable/engine"
+require "sprockets/railtie"
+require "rails/test_unit/railtie"
+
+# Require the gems listed in Gemfile, including any gems
+# you've limited to :test, :development, or :production.
+Bundler.require(*Rails.groups)
+
+module MastodonBridge
+  class Application < Rails::Application
+    # Settings in config/environments/* take precedence over those specified here.
+    # Application configuration should go into files in config/initializers
+    # -- all .rb files in that directory are automatically loaded.
+  end
+end

config/boot.rb

+ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../Gemfile', __dir__)
+
+require 'bundler/setup' # Set up gems listed in the Gemfile.

config/database.yml

+# PostgreSQL. Versions 9.1 and up are supported.
+#
+# Install the pg driver:
+#   gem install pg
+# On OS X with Homebrew:
+#   gem install pg -- --with-pg-config=/usr/local/bin/pg_config
+# On OS X with MacPorts:
+#   gem install pg -- --with-pg-config=/opt/local/lib/postgresql84/bin/pg_config
+# On Windows:
+#   gem install pg
+#       Choose the win32 build.
+#       Install PostgreSQL and put its /bin directory on your path.
+#
+# Configure Using Gemfile
+# gem 'pg'
+#
+default: &default
+  adapter: postgresql
+  encoding: unicode
+  # For details on connection pooling, see rails configuration guide
+  # http://guides.rubyonrails.org/configuring.html#database-pooling
+  pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
+
+development:
+  <<: *default
+  database: mastodon-bridge_development
+
+  # The specified database role being used to connect to postgres.
+  # To create additional roles in postgres see `$ createuser --help`.
+  # When left blank, postgres will use the default role. This is
+  # the same name as the operating system user that initialized the database.
+  #username: mastodon-bridge
+
+  # The password associated with the postgres role (username).
+  #password:
+
+  # Connect on a TCP socket. Omitted by default since the client uses a
+  # domain socket that doesn't need configuration. Windows does not have