Simple GeoCommons and GeoIQ OAuth Sinatra App

simple_sinatra_oauth_app_geoiq.rb

require "rubygems"
require "sinatra"
require "oauth"
require "oauth/consumer"
require 'haml'

enable :sessions

# Simple Ruby Sinatra application for interacting with GeoIQ server
# You would need to either supply environment variables for key, secret and site or change them in this file.
# You should also change the urls in the "/" and "/perm" calls to ones that the user can access and one that the user cannot.
#

before do
  session[:oauth] ||= {}  
  
  consumer_key = ENV["consumer_key"] || "CONSUMER_KEY"
  consumer_secret = ENV["consumer_secret"] || "CONSUMER_SECRET"
  site = ENV["consumer_site"] || "http://geocommons.com"

  @consumer ||= OAuth::Consumer.new(consumer_key, consumer_secret, :site => site)
  
  if !session[:oauth][:request_token].nil? && !session[:oauth][:request_token_secret].nil?
    @request_token = OAuth::RequestToken.new(@consumer, session[:oauth][:request_token], session[:oauth][:request_token_secret])
  end
  
  if !session[:oauth][:access_token].nil? && !session[:oauth][:access_token_secret].nil?
    @access_token = OAuth::AccessToken.new(@consumer, session[:oauth][:access_token], session[:oauth][:access_token_secret])
  end
  

end

# gets the edit page for the user, You'd need to change the url
get "/" do
  if @access_token
    @user_edit_page =  @access_token.get('/search?mh_query=&format=json&limit=2')
    haml :index
  else
    '<a href="/request">Sign On</a>'
  end
end

get '/allowed' do
  if @access_token
    
  end
end

# tries to access a resource that its not allowed to, you'd need to change the url
get '/perm' do
  if @access_token
    text = @access_token.get('/datasets/2454.json')
  else
    text = "not logged in"
  end
  URI.escape(text.inspect)
end

get "/request" do
  @request_token = @consumer.get_request_token(:oauth_callback => "http://#{request.host}:4567/auth")
  session[:oauth][:request_token] = @request_token.token
  session[:oauth][:request_token_secret] = @request_token.secret
  redirect @request_token.authorize_url
end

get "/auth" do
  @access_token = @request_token.get_access_token :oauth_verifier => params[:oauth_verifier]
  session[:oauth][:access_token] = @access_token.token
  session[:oauth][:access_token_secret] = @access_token.secret
  redirect "/"
end

get "/logout" do
  session[:oauth] = {}
  redirect "/"
end


__END__

@@ layout
%html
 = yield

@@ index
%p #{@user_edit_page.body}
 

@@ profile

 %p Welcome 
 %p You are now connected via Geoiq
 %p session[:profile].inspect