Simple summary-to-full-feed proxy for a RSS feed, for gf. Ruby CGI.

my_little_boudoir.rb

#!/usr/bin/env ruby
# Simple summary-to-full-feed proxy for a single, hard-coded feed.
# Caches each entry by GUID and timestamp.

FEED = "http://mylittleboudoir.com/feed/"
CACHE_DIR = "/tmp"

require "open-uri"
require "rubygems"
require "nokogiri"

feed = Nokogiri::XML(open(FEED))

feed.css('item').each do |item|
  
  guid = item.at('guid').text[/\d+/]
  time = Time.parse(item.at('pubDate').text).to_i
  cache_file = File.join(CACHE_DIR, "cache_#{guid}_#{time}")
  
  if File.exist?(cache_file)
    full_entry = File.read(cache_file)
  else
    url = URI.parse(item.at('link').text)
    raise "Link is not HTTP" unless url.is_a?(URI::HTTP)
    html = Nokogiri::HTML(open(url))

    full_entry = html.at('.entry').inner_html
    full_entry.sub!(/<div id="iLikeThis-.*\z/m, '')  # Remove crap at end.

    File.open(cache_file, 'w') { |f| f.write full_entry }
  end
  
  desc_node = item.at('description')
  desc_node.content = full_entry
end

puts "Content-Type: text/xml; charset=utf-8"
puts
puts feed