TripIt OAuth Example for http://flocktravel.com

gistfile1.rb

class ThirdpartyController < ApplicationController
  before_filter :authenticate_user!
  before_filter :get_consumer_info, :except => [ :index ]
  
  def index
    session[:request_token] = nil
    @tripit = current_user.authorizations.where(:provider => "tripit")
  end

  def tripit
    session[:request_token] = nil

    consumer = OAuth::Consumer.new @api_key, @api_secret, { :site => "https://api.tripit.com" }
    callback = CGI::escape(APP_CONFIG['tripit_callback_url'])
        
    request_token = consumer.get_request_token
    oauth_token = request_token.token
    
    request_url = "https://www.tripit.com/oauth/authorize?oauth_token=#{oauth_token}&oauth_callback=#{callback}"
    request_token.consumer.secret = nil # do not pass the consumer secret via session
    
    session[:request_token] = request_token

    redirect_to request_url
  end
  
  def tripit_remove
    authorizations = current_user.authorizations.where(:provider => "tripit") # incase we got more than one tripit
    authorizations.each do |a|
      a.destroy
    end
    flash[:notice] = "Successfully removed TripIt! from your account."
    redirect_to thirdparty_path
  end

  def tripit_callback
    request_token = session[:request_token]
    request_token.consumer.secret = @api_secret

    session[:request_token] = nil
    access_token = request_token.get_access_token
    token = access_token.token
    secret = access_token.secret
    
    authorization = Authorization.find_by_user_id_and_provider(current_user.id, "tripit")
    if authorization
      authorization.token = token
      authorization.secret = secret
      authorization.save!
    else
      current_user.authorizations.create!(:provider => "tripit", :token => token, :secret => secret )
    end
    
    flash[:notice] = "Successfully authenticated TripIt!"
    redirect_to thirdparty_path
  end
  
  private
  
  def get_consumer_info
    @api_key = APP_CONFIG['tripit_api_key']
    @api_secret = APP_CONFIG['tripit_api_secret']
  end

end