adds support for Facebook OAuth

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