CanonicalRedirect.rb

class CanonicalRedirect
  def initialize(app)
    @app = app
  end

  def call(env)
    request = Rack::Request.new(env)
    
    if request.host =~ /^domain1/ 
      [301, {"Location" => request.url.sub("//domain1", "//www.domain2")}, self]
    elsif request.host =~ /^domain2/
      [301, {"Location" => request.url.sub("//", "//www.")}, self]
    elsif request.host =~ /^www.domain1/
      [301, {"Location" => request.url.sub("//www.domain1", "//www.domain2")}, self]
    else
      @app.call(env)
    end
  end

  def each(&block)
  end
end


  def each(&block)
  end
end