Mongrelhandler + erb

A few weeks back I wrote a MongrelHandler to handle concurrent requests on a site to
process a slow running process(read scraping) in background. Here is how it looks like (in essence)

class  < Mongrel::HttpHandler
def get_binding
binding
end
def process(request, response)
response.start(200) do |head, out|
  head["Content-Type"] = "text/html"
  params={}
  request.params["QUERY_STRING"].split('&').each{|x|
    k,v=x.split('=')
    params[k.to_sym]=v
  }
  params[:id]=request.params["PATH_INFO"]
  @posts=Post.find(params[:id]) #or whatever
  template=""
  File.open("#{RAILS_ROOT}/app/views/<path>/<filename>", "r"){
    |f| template=f.readlines.to_s
  }
  rhtml = ERB.new(template)
  str=rhtml.result(self.get_binding)
  out.write str
end
end
end

To start it call
mongrel_rails start -e environment -p port -S path-to-mongrel-handler