adds support for Facebook OAuth

Gemfile

@@ -23,7 +23,7 @@ gem 'devise'
 # gem 'bcrypt', '~> 3.1.7'
 gem 'omniauth'
 gem 'omniauth-twitter'
-# gem 'omniauth-facebook'
+gem 'omniauth-facebook'
 # gem 'omniauth-google-oauth2'
 
 gem 'kaminari'

Gemfile.lock

@@ -133,6 +133,8 @@ GEM
     factory_girl_rails (4.5.0)
       factory_girl (~> 4.5.0)
       railties (>= 3.0.0)
+    faraday (0.9.1)
+      multipart-post (>= 1.2, < 3)
     foundation-rails (5.5.2.1)
       railties (>= 3.1.0)
       sass (>= 3.3.0, < 3.5)
@@ -170,6 +172,7 @@ GEM
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
     json (1.8.3)
+    jwt (1.5.1)
     kaminari (0.16.3)
       actionpack (>= 3.0.0)
       activesupport (>= 3.0.0)
@@ -190,6 +193,8 @@ GEM
     mini_portile (0.6.2)
     minitest (5.8.0)
     multi_json (1.11.2)
+    multi_xml (0.5.5)
+    multipart-post (2.0.0)
     net-scp (1.2.1)
       net-ssh (>= 2.6.5)
     net-ssh (2.9.2)
@@ -197,12 +202,23 @@ GEM
     nokogiri (1.6.6.2)
       mini_portile (~> 0.6.0)
     oauth (0.4.7)
+    oauth2 (1.0.0)
+      faraday (>= 0.8, < 0.10)
+      jwt (~> 1.0)
+      multi_json (~> 1.3)
+      multi_xml (~> 0.5)
+      rack (~> 1.2)
     omniauth (1.2.2)
       hashie (>= 1.2, < 4)
       rack (~> 1.0)
+    omniauth-facebook (2.0.1)
+      omniauth-oauth2 (~> 1.2)
     omniauth-oauth (1.1.0)
       oauth
       omniauth (~> 1.0)
+    omniauth-oauth2 (1.3.1)
+      oauth2 (~> 1.0)
+      omniauth (~> 1.2)
     omniauth-twitter (1.2.1)
       json (~> 1.3)
       omniauth-oauth (~> 1.1)
@@ -374,6 +390,7 @@ DEPENDENCIES
   launchy
   letter_opener_web (~> 1.3.0)
   omniauth
+  omniauth-facebook
   omniauth-twitter
   paranoia
   pg

app/controllers/users/omniauth_callbacks_controller.rb

@@ -16,7 +16,7 @@ class Users::OmniauthCallbacksController < Devise::OmniauthCallbacksController
   end
 
   # [:twitter, :facebook, :google_oauth2].each do |provider|
-  [:twitter].each do |provider|
+  [:twitter, :facebook].each do |provider|
     provides_callback_for provider
   end
 

app/views/devise/_omniauth_form.html.erb

@@ -1,5 +1,6 @@
 <br/>
 
 <%= link_to t("omniauth.twitter.sign_in"), user_omniauth_authorize_path(:twitter), class: 'button radius expand' %>
+<%= link_to t("omniauth.facebook.sign_in"), user_omniauth_authorize_path(:facebook), class: 'button radius expand' %>
 
 <hr/>

config/deploy/shared/secrets.yml.erb

@@ -4,5 +4,6 @@
   secret_key_base: <%= ENV["SECRET_KEY_BASE"] %>
   twitter_key: <%= ENV["TWITTER_KEY"] %>
   twitter_secret: <%= ENV["TWITTER_SECRET"] %>
+  facebook_key: <%= ENV["FACEBOOK_KEY"] %>
+  facebook_secret: <%= ENV["FACEBOOK_SECRET"] %>
   server_name: <%= fetch(:server_name) %>
-  

config/initializers/devise.rb

@@ -240,6 +240,7 @@ Devise.setup do |config|
   # up on your models and hooks.
   # config.omniauth :github, 'APP_ID', 'APP_SECRET', scope: 'user,public_repo'
   config.omniauth :twitter, Rails.application.secrets.twitter_key, Rails.application.secrets.twitter_secret
+  config.omniauth :facebook, Rails.application.secrets.facebook_key, Rails.application.secrets.facebook_secret
 
   # ==> Warden configuration
   # If you want to use other strategies, that are not supported by Devise, or

config/locales/en.yml

@@ -153,3 +153,5 @@ en:
       title: Add Email
     twitter:
       sign_in: Sign in with Twitter
+    facebook:
+      sign_in: Sign in with Facebook

config/locales/es.yml

@@ -152,4 +152,6 @@ es:
     finish_signup:
       title: Añade tu email
     twitter:
-      sign_in: Inicia sessión con Twitter
+      sign_in: Entra con Twitter
+    facebook:
+      sign_in: Entra con Facebook

config/secrets.yml.example

@@ -16,16 +16,22 @@ development:
   secret_key_base: 56792feef405a59b18ea7db57b4777e855103882b926413d4afdfb8c0ea8aa86ea6649da4e729c5f5ae324c0ab9338f789174cf48c544173bc18fdc3b14262e4
   twitter_key: AAAA
   twitter_secret: BBBB
+  facebook_key: AAAA
+  facebook_secret: BBBB
   <<: *default
 
 test:
   secret_key_base: 4d5adf961ddd27aef19622d6c0b3234d555f9ee003f022b1f829c92bbe33aaee907be7feb67bd54c14a1a32512fa968565ad405971fbc41bd0797af73c26a796
   twitter_key: AAAA
   twitter_secret: BBBB
+  facebook_key: AAAA
+  facebook_secret: BBBB
   <<: *default
 
 production:
   secret_key_base: <%= ENV["SECRET_KEY_BASE"] %>
   twitter_key: <%= ENV["TWITTER_KEY"] %>
   twitter_secret: <%= ENV["TWITTER_SECRET"] %>
+  facebook_key: <%= ENV["FACEBOOK_KEY"] %>
+  facebook_secret: <%= ENV["FACEBOOK_SECRET"] %>
   <<: *default