login con imap

Gemfile

@@ -29,9 +29,14 @@ gem 'jbuilder', '~> 2.5'
 # Use Capistrano for deployment
 # gem 'capistrano-rails', group: :development
 
+gem 'email_address'
+gem 'rails_warden'
+gem 'haml-rails'
+gem 'bootstrap', '~> 4.0.0.beta3'
+gem 'jekyll'
+
 group :development, :test do
-  # Call 'byebug' anywhere in the code to stop execution and get a debugger console
+  gem 'pry'
-  gem 'byebug', platforms: [:mri, :mingw, :x64_mingw]
   # Adds support for Capybara system testing and selenium driver
   gem 'capybara', '~> 2.13'
   gem 'selenium-webdriver'
@@ -45,6 +50,3 @@ group :development do
   gem 'spring'
   gem 'spring-watcher-listen', '~> 2.0.0'
 end
-
-# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
-gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]

Gemfile.lock

@@ -41,9 +41,14 @@ GEM
     addressable (2.5.2)
       public_suffix (>= 2.0.2, < 4.0)
     arel (8.0.0)
+    autoprefixer-rails (7.2.4)
+      execjs
     bindex (0.5.0)
+    bootstrap (4.0.0.beta3)
+      autoprefixer-rails (>= 6.0.3)
+      popper_js (>= 1.12.3, < 2)
+      sass (>= 3.5.2)
     builder (3.2.3)
-    byebug (9.1.0)
     capybara (2.16.1)
       addressable
       mini_mime (>= 0.1.3)
@@ -53,18 +58,63 @@ GEM
       xpath (~> 2.0)
     childprocess (0.8.0)
       ffi (~> 1.0, >= 1.0.11)
+    coderay (1.1.2)
+    colorator (1.1.0)
     concurrent-ruby (1.0.5)
     crass (1.0.3)
+    em-websocket (0.5.1)
+      eventmachine (>= 0.12.9)
+      http_parser.rb (~> 0.6.0)
+    email_address (0.1.6)
+      netaddr
+      simpleidn
     erubi (1.7.0)
+    erubis (2.7.0)
+    eventmachine (1.2.5)
     execjs (2.7.0)
     ffi (1.9.18)
+    forwardable-extended (2.6.0)
     globalid (0.4.1)
       activesupport (>= 4.2.0)
+    haml (5.0.4)
+      temple (>= 0.8.0)
+      tilt
+    haml-rails (1.0.0)
+      actionpack (>= 4.0.1)
+      activesupport (>= 4.0.1)
+      haml (>= 4.0.6, < 6.0)
+      html2haml (>= 1.0.1)
+      railties (>= 4.0.1)
+    html2haml (2.2.0)
+      erubis (~> 2.7.0)
+      haml (>= 4.0, < 6)
+      nokogiri (>= 1.6.0)
+      ruby_parser (~> 3.5)
+    http_parser.rb (0.6.0)
     i18n (0.9.1)
       concurrent-ruby (~> 1.0)
     jbuilder (2.7.0)
       activesupport (>= 4.2.0)
       multi_json (>= 1.2)
+    jekyll (3.7.0)
+      addressable (~> 2.4)
+      colorator (~> 1.0)
+      em-websocket (~> 0.5)
+      i18n (~> 0.7)
+      jekyll-sass-converter (~> 1.0)
+      jekyll-watch (~> 2.0)
+      kramdown (~> 1.14)
+      liquid (~> 4.0)
+      mercenary (~> 0.3.3)
+      pathutil (~> 0.9)
+      rouge (>= 1.7, < 4)
+      safe_yaml (~> 1.0)
+    jekyll-sass-converter (1.5.1)
+      sass (~> 3.4)
+    jekyll-watch (2.0.0)
+      listen (~> 3.0)
+    kramdown (1.16.2)
+    liquid (4.0.0)
     listen (3.1.5)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
@@ -74,14 +124,22 @@ GEM
       nokogiri (>= 1.5.9)
     mail (2.7.0)
       mini_mime (>= 0.1.1)
+    mercenary (0.3.6)
     method_source (0.9.0)
     mini_mime (1.0.0)
     mini_portile2 (2.3.0)
     minitest (5.10.3)
     multi_json (1.12.2)
+    netaddr (1.5.1)
     nio4r (2.1.0)
     nokogiri (1.8.1)
       mini_portile2 (~> 2.3.0)
+    pathutil (0.16.1)
+      forwardable-extended (~> 2.6)
+    popper_js (1.12.9)
+    pry (0.11.3)
+      coderay (~> 1.1.0)
+      method_source (~> 0.9.0)
     public_suffix (3.0.1)
     puma (3.11.0)
     rack (2.0.3)
@@ -104,6 +162,8 @@ GEM
       nokogiri (>= 1.6)
     rails-html-sanitizer (1.0.3)
       loofah (~> 2.0)
+    rails_warden (0.5.8)
+      warden (>= 1.0.0)
     railties (5.1.4)
       actionpack (= 5.1.4)
       activesupport (= 5.1.4)
@@ -114,8 +174,12 @@ GEM
     rb-fsevent (0.10.2)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
+    rouge (3.1.0)
     ruby_dep (1.5.0)
+    ruby_parser (3.10.1)
+      sexp_processor (~> 4.9)
     rubyzip (1.2.1)
+    safe_yaml (1.0.4)
     sass (3.5.4)
       sass-listen (~> 4.0.0)
     sass-listen (4.0.0)
@@ -130,6 +194,8 @@ GEM
     selenium-webdriver (3.8.0)
       childprocess (~> 0.5)
       rubyzip (~> 1.0)
+    sexp_processor (4.10.0)
+    simpleidn (0.0.9)
     spring (2.0.2)
       activesupport (>= 4.2)
     spring-watcher-listen (2.0.1)
@@ -143,6 +209,7 @@ GEM
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
     sqlite3 (1.3.13)
+    temple (0.8.0)
     thor (0.20.0)
     thread_safe (0.3.6)
     tilt (2.0.8)
@@ -153,6 +220,8 @@ GEM
       thread_safe (~> 0.1)
     uglifier (4.1.2)
       execjs (>= 0.3.0, < 3)
+    warden (1.2.7)
+      rack (>= 1.0)
     web-console (3.5.1)
       actionview (>= 5.0)
       activemodel (>= 5.0)
@@ -168,19 +237,23 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  byebug
+  bootstrap (~> 4.0.0.beta3)
   capybara (~> 2.13)
+  email_address
+  haml-rails
   jbuilder (~> 2.5)
+  jekyll
   listen (>= 3.0.5, < 3.2)
+  pry
   puma (~> 3.7)
   rails (~> 5.1.4)
+  rails_warden
   sass-rails (~> 5.0)
   selenium-webdriver
   spring
   spring-watcher-listen (~> 2.0.0)
   sqlite3
   turbolinks (~> 5)
-  tzinfo-data
   uglifier (>= 1.3.0)
   web-console (>= 3.3.0)
 

app/assets/stylesheets/application.css

@@ -1,15 +0,0 @@
-/*
- * 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, 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/application.scss

@@ -0,0 +1,38 @@
+@import "bootstrap";
+
+$footer-height: 60px;
+
+.background-cover {
+  background: image-url("background.jpg") no-repeat center center fixed;
+  -webkit-background-size: cover;
+  -moz-background-size: cover;
+  -o-background-size: cover;
+  background-size: cover;
+}
+
+.full-height {
+  height: calc(100vh - #{$footer-height});
+}
+
+html {
+  position: relative;
+  min-height: 100%;
+}
+
+body {
+  margin-bottom: $footer-height;
+}
+
+.footer {
+  position: absolute;
+  bottom: 0;
+  width: 100%;
+  height: $footer-height;
+  line-height: $footer-height;
+  text-align: center;
+}
+
+textarea.post-content {
+  min-height: 80vh;
+  font-family: monospace;
+}

app/controllers/application_controller.rb

@@ -1,3 +1,7 @@
 class ApplicationController < ActionController::Base
   protect_from_forgery with: :exception
+
+  def index
+    redirect_to sites_path
+  end
 end

app/controllers/login_controller.rb

@@ -0,0 +1,21 @@
+class LoginController < ApplicationController
+  protect_from_forgery with: :exception
+
+  def index
+    redirect_to new_login_path
+  end
+
+  def new
+    @has_cover = true
+    render 'login/new'
+  end
+
+  def create
+    authenticate
+
+    if authenticated?
+      # TODO enviar a la URL de donde vinimos
+      redirect_to sites_path
+    end
+  end
+end

app/controllers/sites_controller.rb

@@ -0,0 +1,6 @@
+class SitesController < ApplicationController
+  before_action :authenticate!
+
+  def index
+  end
+end

app/models/usuaria.rb

@@ -0,0 +1,18 @@
+# Un modelo para la usuaria que no se corresponde con una base de datos
+# porque vienen de IMAP
+#
+# Una usuaria puede tener muchos sitios, pero no podemos establecer
+# relaciones estilo has_many porque no estamos usando ActiveRecord, que
+# requeriría que guardemos todo en una base de datos.
+class Usuaria < OpenStruct
+  # Crear una usuaria ad hoc, porque la base de datos de usuarias está
+  # en otro lado.
+  def self.find(username)
+    Usuaria.new(username: username)
+  end
+
+  # Obtener todos los sitios de esta usuaria
+  def sites
+    @sites ||= Site.all_for(self)
+  end
+end

app/views/layouts/application.html.erb

@@ -1,14 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <title>Sutty</title>
-    <%= csrf_meta_tags %>
-
-    <%= stylesheet_link_tag    'application', media: 'all', 'data-turbolinks-track': 'reload' %>
-    <%= javascript_include_tag 'application', 'data-turbolinks-track': 'reload' %>
-  </head>
-
-  <body>
-    <%= yield %>
-  </body>
-</html>

app/views/layouts/application.html.haml

@@ -0,0 +1,15 @@
+!!!
+%html
+  %head
+    %meta{content: "text/html; charset=UTF-8", 'http-equiv': "Content-Type"}/
+    %title Sutty
+    = csrf_meta_tags
+    = stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track': 'reload'
+  %body{class: @has_cover ? 'background-cover' : ''}
+    .container-fluid
+      = yield
+    %footer.footer
+      %p{style: @has_cover ? 'color: white' : ''}
+        %a{href: 'https://0xacab.org/itacate-kefir/sutty'} Sutty
+        es desarrollada por
+        %a{href: 'https://kefir.red'} Kéfir

app/views/login/new.haml

@@ -0,0 +1,14 @@
+.row.align-items-center.justify-content-center.full-height
+  .col-md-6.align-self-center
+    - if flash[:error]
+      .alert.alert-danger{role: 'alert'}
+        = flash[:error]
+
+    = form_tag login_path do
+      .form-group
+        %input{type: 'email', name: 'username', class: 'form-control', placeholder: t('login.email')}
+      .form-group
+        %input{type: 'password', name: 'password', class: 'form-control', placeholder: t('login.password')}
+
+      .form-group
+        %input{type: 'submit', value: t('login.submit', class: 'btn btn-lg btn-primary btn-block'}

app/views/sites/index.haml

@@ -0,0 +1 @@
+%h1= t('sites.title')

config/initializers/warden.rb

@@ -0,0 +1,18 @@
+require 'warden/imap'
+
+Rails.configuration.middleware.use RailsWarden::Manager do |manager|
+  manager.default_strategies :imap
+  manager.failure_app = -> (env) { LoginController.action(:new).call(env) }
+end
+
+class Warden::SessionSerializer
+  def serialize(record)
+    [record.username]
+  end
+
+  def deserialize(keys)
+    Usuaria.find(keys.first)
+  end
+end
+
+Warden::Strategies.add(:imap, Warden::IMAP::Strategy)

config/locales/en.yml

@@ -1,33 +1,7 @@
-# Files in the config/locales directory are used for internationalization
-# and are automatically loaded by Rails. If you want to use locales other
-# than English, add the necessary files in this directory.
-#
-# To use the locales, use `I18n.t`:
-#
-#     I18n.t 'hello'
-#
-# In views, this is aliased to just `t`:
-#
-#     <%= t('hello') %>
-#
-# To use a different locale, set it with `I18n.locale`:
-#
-#     I18n.locale = :es
-#
-# This would use the information in config/locales/es.yml.
-#
-# The following keys must be escaped otherwise they will not be retrieved by
-# the default I18n backend:
-#
-# true, false, on, off, yes, no
-#
-# Instead, surround them with single quotes.
-#
-# en:
-#   'true': 'foo'
-#
-# To learn more, please read the Rails Internationalization guide
-# available at http://guides.rubyonrails.org/i18n.html.
-
 en:
-  hello: "Hello world"
+  login:
+    email: 'E-mail'
+    password: 'Password'
+    submit: 'Log in'
+  sites:
+    title: 'Sites'

config/locales/es.yml

@@ -0,0 +1,7 @@
+es:
+  login:
+    email: 'Dirección de correo'
+    password: 'Contraseña'
+    submit: 'Ingresar'
+  sites:
+    title: 'Sitios'

config/routes.rb

@@ -1,3 +1,10 @@
 Rails.application.routes.draw do
-  # For details on the DSL available within this file, see http://guides.rubyonrails.org/routing.html
+  root 'application#index'
+
+  get 'login/new', to: 'login#new'
+  post 'login', to: 'login#create'
+
+  resources :sites do
+    resources :posts
+  end
 end

lib/warden/imap.rb

@@ -0,0 +1,51 @@
+# frozen_string_literal: true
+
+require 'net/imap'
+require 'warden'
+require 'email_address'
+
+module Warden
+  module IMAP
+    # Una estrategia de autenticación por IMAP
+    class Strategy < Warden::Strategies::Base
+      def valid?
+        return false unless params.include? 'username'
+        return false unless params.include? 'password'
+
+        @email = EmailAddress.new(params['username'])
+
+        @email.valid?
+      end
+
+      def authenticate!
+        imap_connect
+        imap_login
+      end
+
+      private
+
+      def imap_connect
+        # No vamos a enviar la contraseña en texto plano a ningún lado
+        @imap = Net::IMAP.new(@email.host_name, ssl: true)
+      # Errores más comunes según
+      # https://ruby-doc.org/stdlib-2.0.0/libdoc/net/imap/rdoc/Net/IMAP.html
+      rescue Errno::ECONNREFUSED, Errno::ETIMEDOUT, Errno::ENETUNREACH,
+             SocketError, Net::IMAP::ByeResponseError => e
+
+        @imap.disconnect
+        fail! e.to_s
+      end
+
+      def imap_login
+        @imap.login(@email.normal, params['password'])
+        @imap.disconnect
+
+        success! Usuaria.find(@email.normal)
+      rescue EOFError => e
+        @imap.disconnect
+        fail! e.to_s
+      end
+    end
+  end
+end
+