directory as itunes podcast experiment

config.ru

#use Rack::Static, root: ''

feed = lambda { |env| 
  server = [env['SERVER_NAME'], env['SERVER_PORT']].compact.join(':')

  # file = File.join(Dir.pwd,env['PATH_INFO'])
  # if File.exist? file
  #   return [200, {'Content-Type'=>'video/quicktime', 'Content-Length'=>File.size(file).to_s}, [File.read(file)]] 
  # end

  head = <<-HEAD
<?xml version="1.0" encoding="UTF-8"?>
<rss xmlns:atom="http://www.w3.org/2005/Atom" xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd" version="2.0">
  
  <channel>

    <title>#{File.basename Dir.pwd}</title>
    <description>#{File.basename Dir.pwd} - #{Dir['*.mov'].size} Episodes</description>
    <link>http://#{server}</link>
    <language>en-us</language>
    <copyright>Copyright 2007</copyright>
    <lastBuildDate>Mon, 18 May 2015 19:00:00 GMT</lastBuildDate>
    <pubDate>Mon, 18 May 2015 19:00:00 GMT</pubDate>
    <itunes:explicit>no</itunes:explicit>
    <atom:link href="http://#{server}/feed.xml" rel="self" type="application/rss+xml" />
    <itunes:category text="Technology"/>
    <itunes:owner>
      <itunes:name>Ben</itunes:name>
      <itunes:email>ben@rexin.at</itunes:email>
    </itunes:owner>
  HEAD

  footer = "</channel></rss>"

  entries = Dir['*.mov'].map do |file|
    <<-ENTRY
      <item>
        <title>#{file.split('.').first.split('-')[1..99].join(' ')}</title>
        <link>http://#{server}/#{file}</link>
        <enclosure url="http://#{server}/#{file}" type="video/quicktime" length="#{File.size file}" />

        <description>Verbose description of the episode.</description>
        <guid>http://#{server}/#{file}</guid>
        <pubDate>Mon, 18 May 2015 19:00:00 GMT</pubDate>
      </item>
    ENTRY
  end.join($/)

  response = [head, entries, footer].join $/
  
  [200, {'Content-Type'=>'application/rss+xml'}, [response]] 
}

run Rack::URLMap.new( {
  "/" => Rack::Directory.new( "" ),
  "/feed.xml" => feed
} )