Add Facebook login with Sorcery

The facebook key and secret defined in the sorcery config file are for
testing only and need to be changed and not committed to source when
app is ready to go live

config/initializers/sorcery.rb

@@ -71,7 +71,7 @@ Rails.application.config.sorcery.configure do |config|
   # What providers are supported by this app, i.e. [:twitter, :facebook, :github, :linkedin, :xing, :google, :liveid] .
   # Default: `[]`
   #
-  # config.external_providers =
+  config.external_providers = [:facebook]
 
 
   # You can change it by your local ca_file. i.e. '/etc/pki/tls/certs/ca-bundle.crt'
@@ -109,13 +109,14 @@ Rails.application.config.sorcery.configure do |config|
   # config.twitter.secret = ""
   # config.twitter.callback_url = "http://0.0.0.0:3000/oauth/callback?provider=twitter"
   # config.twitter.user_info_mapping = {:email => "screen_name"}
-  #
-  # config.facebook.key = ""
-  # config.facebook.secret = ""
-  # config.facebook.callback_url = "http://0.0.0.0:3000/oauth/callback?provider=facebook"
-  # config.facebook.user_info_mapping = {:email => "name"}
-  # config.facebook.access_permissions = ["email", "publish_stream"]
-  #
+  
+  config.facebook.key = "726202304080642"
+  config.facebook.secret = "386a7b717d348af4120aeb1bb0ca3516"
+  config.facebook.callback_url = "http://0.0.0.0:3000/oauth/callback?provider=facebook"
+  config.facebook.user_info_mapping = {:email => "email", :username => "username", :avatar => "picture/data/url"}
+  config.facebook.scope = "email"
+  config.facebook.display = "popup"
+  
   # config.github.key = ""
   # config.github.secret = ""
   # config.github.callback_url = "http://0.0.0.0:3000/oauth/callback?provider=github"
@@ -147,7 +148,7 @@ Rails.application.config.sorcery.configure do |config|
     # specify username attributes, for example: [:username, :email].
     # Default: `[:username]`
     #
-    # user.username_attribute_names =
+    user.username_attribute_names = [:username, :email]
 
 
     # change *virtual* password attribute, the one which is used until an encrypted one is generated.
@@ -214,7 +215,7 @@ Rails.application.config.sorcery.configure do |config|
     # make this configuration inheritable for subclasses. Useful for ActiveRecord's STI.
     # Default: `false`
     #
-    # user.subclasses_inherit_config =
+    user.subclasses_inherit_config = true
 
 
     # -- remember_me --
@@ -411,7 +412,7 @@ Rails.application.config.sorcery.configure do |config|
     # Class which holds the various external provider data for this user.
     # Default: `nil`
     #
-    # user.authentications_class =
+    user.authentications_class = Authentication
 
 
     # User's identifier in authentications class.

config/routes.rb

@@ -56,6 +56,10 @@ BikeBike::Application.routes.draw do
 	get		'login' => 'user_sessions#new', :as => :login
 	post	'logout' => 'user_sessions#destroy', :as => :logout
 	get		'register'  => 'users#new', :as => 'register'
+  
+  post "oauth/callback" => "oauths#callback"
+  get "oauth/callback" => "oauths#callback"
+  get "oauth/:provider" => "oauths#oauth", :as => :auth_at_provider
 
 	root 'pages#home'