a simple rack app, that wraps 'status' rss calls to twitter with the necessary oauth

get_twitter_rss.rb

require 'simple_oauth'
require 'net/http'
require 'rack'

class GetTwitterRSS
	@@consumer_secrets={:consumer_key=>"<<YOUR_KEY>>",:consumer_secret=>"<<YOUR_SECRET>>}
	@@user_secrets={"username
1"=>{:token_secret=>"<<TOKEN_SECRET>>",:token=>"<<ACCESS_TOKEN>>"}}
	@@base="api.twitter.com"
	def call(env)
		return [500,{"content-type"=>"text/plain"},"format: /user/action.format"] unless mch=env["PATH_INFO"].match(/\/(\w+)\/(\w+)\.(\w+)/)
		user,action,format=mch[1,3]
		return [404,{"content-type"=>"text/plain"},"user #{user.downcase} not in system"] unless @@user_secrets[user]
		path="/1/statuses/#{action}.#{format}"
		h=SimpleOAuth::Header.new("get","http://#{@@base}#{path}",{},@@consumer_secrets.merge(@@user_secrets[user.downcase]))
		Net::HTTP.start(@@base) do |http|
			res=http.get(path,{"Authorization"=>h.to_s})
			headers=res.to_hash
			headers.delete("status")
			headers.merge!(headers) {|k,v| v*","}
			[res.code.to_i,headers,[res.body]]
		end
	end
end

get_twitter_rss.ru

require 'rack'
require 'get_twitter_rss.rb'
run GetTwitterRSS.new