RSS Downloader

#!/usr/bin/ruby

require 'rss/2.0'
require 'open-uri'
require 'uri'
require 'rubygems'
require 'active_record'

ActiveRecord::Base.establish_connection :adapter => 'sqlite3', :database => 'downloaded.sqlite3'

begin
  ActiveRecord::Schema.define :version => 1 do
    create_table "downloads" do |t|
      t.string "title"
      t.string "link"
      t.datetime "created_at"
      t.datetime "updated_at"
    end
  end
rescue
  # nothing, table already exists
end

class Download < ActiveRecord::Base
end

## SETUP
# Feed is a hash where the key is the url of the rss feed, and the value is an array of regular expressions
# Example: 
#
#  FEEDS = { 
#     'http://my.feed/torrent.rss' => [/house/i, /breaking.*bad/i]
#  }
#
# Then configure DOWNLOAD_LOCATION using an absolute path. torrent files will be saved in this directory. Set up your torrent
# client to watch this directory so when something is added it will auto start. Transmission can do this


FEEDS = { }
  
DOWNLOAD_LOCATION = "/Users/adam/Downloads"


def matched_items
  items = []
  
  FEEDS.each_key do |feed|
    open(feed) do |http|
      rss = RSS::Parser.parse(http.read, false)
      items += rss.items.select do |item|
        flag = FEEDS[feed].inject(false) do |flag,regex|
          puts "Checking #{item.title} aganist #{regex}"
          flag || item.title =~ regex 
        end
        flag && !Download.exists?(["title = ? AND link = ?", item.title, item.link])
      end      
    end
  end
  
  items  
end

def download_items(items) 
  items.each do |item|
    puts "Downloding #{item.link}...."
    %x(cd  "#{DOWNLOAD_LOCATION}" ; wget "#{item.link}")
    Download.create :title => item.title, :link => item.link
  end
end

download_items(matched_items)