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# Pipe Ars Technica's live Apple event coverage into a Campfire room.
# http://arstechnica.com/apple/news/2010/01/tablet-live-event-liveblog.ars
#
# Usage:
# $ gem install -r hpricot tinder
# $ ruby -rubygems ars_live.rb -ssl mysubdomain myroomid myapikey
require "hpricot"
require "open-uri"
require "tinder"
require "time"
module ArsLive
class Feed
FEED_URL = "http://rss.coveritlive.com/rss.php?altcast_code=%s"
def initialize(id)
@url = FEED_URL % id
@items = []
end
def new_items
document = Hpricot(open(@url).read)
modified = Time.parse(document.search("channel > lastBuildDate").inner_text)
if @modified != modified
@modified = modified
new_items = items_from(document.search("item")) - @items
@items += new_items
new_items
else
[]
end
end
def items_from(elements)
elements.map { |element| Item.new(element) }.sort_by { |item| item.date }.reverse
end
end
class Item
attr_reader :date
def initialize(element)
@date = Time.parse(element.search("pubdate").inner_text)
@enclosure = element.search("enclosure")
@description = Hpricot(element.search("description").inner_text)
end
def has_enclosure?
@enclosure.any?
end
def image
@enclosure.attr("url")
end
def text
cells = @description.search("td")
cells.last.inner_text.strip if cells.any?
end
def body
@body ||= has_enclosure? ? image : text
end
def hash
@hash ||= [date, body].join.hash
end
def eql?(other)
hash == other.hash
end
end
end
if __FILE__ == $0
ssl = ARGV.first == "-ssl" && ARGV.shift
if ARGV.length < 3
$stderr.puts "usage: #$0 [-ssl] subdomain roomid apikey"
exit 1
end
subdomain, room_id, api_key = ARGV[0, 3]
campfire = Tinder::Campfire.new(subdomain, :ssl => ssl)
campfire.login(api_key, nil)
room = Tinder::Room.new(campfire, "id" => room_id)
feed = ArsLive::Feed.new("b0eff04045")
feed.new_items # don't print existing items, in case you have to restart the script
loop do
sleep 3
begin
feed.new_items.first(10).each do |item|
room.speak(item.body)
end
rescue Errno::ETIMEDOUT, Timeout::Error
end
end
end
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