tgoldenberg · August 29, 2015 14:19
diff --git a/gistfile1.txt b/gistfile1.txt
 ##routes.rb

 Rails.application.routes.draw do
  resources :authentications
  root to: "static_pages#home"
  get 'static_pages/books'
  devise_for :users, controllers: {omniauth_callbacks: "authentications", registrations: "registrations"}
 end


 #initializers/devise.rb 

  require "omniauth-facebook"
  config.omniauth :facebook, 'my-app-key', 'my-secret-key', :scope => 'public_profile', :display => 'popup'

 ##user.rb 

 class User < ActiveRecord::Base
  has_many :authentications
  # Include default devise modules. Others available are:
  # :confirmable, :lockable, :timeoutable and :omniauthable
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable, :omniauthable, omniauth_providers: [:facebook]

   def self.from_omniauth(auth, signed_in_resource=nil)
     user = User.where(provider: auth.provider, uid: auth.uid).first
     if user
       return user
     else
       registered_user = User.where(:email => auth.info.email).first
       if registered_user
         return registered_user
       else
         user = User.create(name:auth.extra.raw_info.name,
                            provider: auth.provider,
                            uid: auth.uid,
                            email: auth.info.email,
                            password: Devise.friendly_token[0,20]
         )
       end
     end
   end
 end

 ##authentication.rb 

 class Authentication < ActiveRecord::Base
  belongs_to :user
 end

 ##omniauth_callbacks_controller.rb 

 class OmniauthCallbacksController < Devise::OmniauthCallbacksController

  def facebook
    @user = User.from_omniauth(request.env["omniauth.auth"], current_user)

    if @user.persisted?

      sign_in @user
      redirect_to root_path
      set_flash_message(:notice, :success, :kind => 'Facebook') if is_navigational_format?
    else
      session["devise.facebook_data"] = request.env["omniauth.auth"]
      redirect_to root_path
    end
  end

  def destroy
    reset_session
    redirect_to root_url, :notice => 'Signed out!'
  end

  def failure
    reset_session
    redirect_to root_url, :alert => 'Authentication error: #{params[:message]}'
  end
 end

 ##authentications_controller.rb 

  def facebook
    raise omni = request.env["omniauth.auth"].to_yaml
  end


 ##index.html.erb 

 <h1>StaticPages#books</h1>
 <p>Find me in app/views/static_pages/books.html.erb</p>
 <li> <%= link_to 'Sign in with FACEBOOK', user_omniauth_authorize_path(:facebook) %></li>

 <html>
    <head data-user="<%= current_user ? current_user.uid : nil %>">
      <title>Client-side Flow Example</title>
      <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.0/jquery.min.js" type="text/javascript"></script>
    </head>
    <body>
      <div id="fb-root"></div>
      <script type="text/javascript">
        window.fbAsyncInit = function() {
          FB.init({
            appId  : '370236446503733',
            status : true, // check login status
            cookie : true, // enable cookies to allow the server to access the session
            xfbml  : true  // parse XFBML
          });
        };
        (function(d) {
          var js, id = 'facebook-jssdk'; if (d.getElementById(id)) {return;}
          js = d.createElement('script'); js.id = id; js.async = true;
          js.src = "//connect.facebook.net/en_US/all.js";
          d.getElementsByTagName('head')[0].appendChild(js);
        }(document));
        $(function() {
          $('a').click(function(e) {
            e.preventDefault();
            FB.login(function(response) {
              if (response.authResponse) {
                $('#connect').html('Connected! Hitting OmniAuth callback (GET /auth/facebook/callback)...');
                // since we have cookies enabled, this request will allow omniauth to parse
                // out the auth code from the signed request in the fbsr_XXX cookie
                $.getJSON('/auth/facebook/callback', function(json) {
                  $('#connect').html('Connected! Callback complete.');
                  $('#results').html(JSON.stringify(json));
                });
              }
            }, { scope: 'email,read_stream', state: 'abc123' });
          });
        });
      </script>
      <p id="connect">
        <a href="#">Connect to FB!</a>
      </p>
      <p id="results" />
    </body>
    </html>
	##routes.rb

	Rails.application.routes.draw do
	resources :authentications
	root to: "static_pages#home"
	get 'static_pages/books'
	devise_for :users, controllers: {omniauth_callbacks: "authentications", registrations: "registrations"}
	end


	#initializers/devise.rb

	require "omniauth-facebook"
	config.omniauth :facebook, 'my-app-key', 'my-secret-key', :scope => 'public_profile', :display => 'popup'

	##user.rb

	class User < ActiveRecord::Base
	has_many :authentications
	# Include default devise modules. Others available are:
	# :confirmable, :lockable, :timeoutable and :omniauthable
	devise :database_authenticatable, :registerable,
	:recoverable, :rememberable, :trackable, :validatable, :omniauthable, omniauth_providers: [:facebook]

	def self.from_omniauth(auth, signed_in_resource=nil)
	user = User.where(provider: auth.provider, uid: auth.uid).first
	if user
	return user
	else
	registered_user = User.where(:email => auth.info.email).first
	if registered_user
	return registered_user
	else
	user = User.create(name:auth.extra.raw_info.name,
	provider: auth.provider,
	uid: auth.uid,
	email: auth.info.email,
	password: Devise.friendly_token[0,20]
	)
	end
	end
	end
	end

	##authentication.rb

	class Authentication < ActiveRecord::Base
	belongs_to :user
	end

	##omniauth_callbacks_controller.rb

	class OmniauthCallbacksController < Devise::OmniauthCallbacksController

	def facebook
	@user = User.from_omniauth(request.env["omniauth.auth"], current_user)

	if @user.persisted?

	sign_in @user
	redirect_to root_path
	set_flash_message(:notice, :success, :kind => 'Facebook') if is_navigational_format?
	else
	session["devise.facebook_data"] = request.env["omniauth.auth"]
	redirect_to root_path
	end
	end

	def destroy
	reset_session
	redirect_to root_url, :notice => 'Signed out!'
	end

	def failure
	reset_session
	redirect_to root_url, :alert => 'Authentication error: #{params[:message]}'
	end
	end

	##authentications_controller.rb

	def facebook
	raise omni = request.env["omniauth.auth"].to_yaml
	end


	##index.html.erb

	<h1>StaticPages#books</h1>
	<p>Find me in app/views/static_pages/books.html.erb</p>
	<li> <%= link_to 'Sign in with FACEBOOK', user_omniauth_authorize_path(:facebook) %></li>

	<html>
	<head data-user="<%= current_user ? current_user.uid : nil %>">
	<title>Client-side Flow Example</title>
	<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.0/jquery.min.js" type="text/javascript"></script>
	</head>
	<body>
	<div id="fb-root"></div>
	<script type="text/javascript">
	window.fbAsyncInit = function() {
	FB.init({
	appId : '370236446503733',
	status : true, // check login status
	cookie : true, // enable cookies to allow the server to access the session
	xfbml : true // parse XFBML
	});
	};
	(function(d) {
	var js, id = 'facebook-jssdk'; if (d.getElementById(id)) {return;}
	js = d.createElement('script'); js.id = id; js.async = true;
	js.src = "//connect.facebook.net/en_US/all.js";
	d.getElementsByTagName('head')[0].appendChild(js);
	}(document));
	$(function() {
	$('a').click(function(e) {
	e.preventDefault();
	FB.login(function(response) {
	if (response.authResponse) {
	$('#connect').html('Connected! Hitting OmniAuth callback (GET /auth/facebook/callback)...');
	// since we have cookies enabled, this request will allow omniauth to parse
	// out the auth code from the signed request in the fbsr_XXX cookie
	$.getJSON('/auth/facebook/callback', function(json) {
	$('#connect').html('Connected! Callback complete.');
	$('#results').html(JSON.stringify(json));
	});
	}
	}, { scope: 'email,read_stream', state: 'abc123' });
	});
	});
	</script>
	<p id="connect">
	<a href="#">Connect to FB!</a>
	</p>
	<p id="results" />
	</body>
	</html>