Class: TransmissionRSS::Aggregator

Inherits:
Object
  • Object
show all
Extended by:
Callback
Defined in:
lib/transmission-rss/aggregator.rb

Overview

Class for aggregating torrent files through RSS feeds.

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Callback

callback

Constructor Details

#initialize(feeds = [], options = {}) ⇒ Aggregator

Returns a new instance of Aggregator.



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# File 'lib/transmission-rss/aggregator.rb', line 17

def initialize(feeds = [], options = {})
  reinitialize!(feeds, options)
end

Instance Attribute Details

#seen ⇒ Object (readonly)

Returns the value of attribute seen.



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# File 'lib/transmission-rss/aggregator.rb', line 15

def seen
  @seen
end

Instance Method Details

#reinitialize!(feeds = [], options = {}) ⇒ Object 



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# File 'lib/transmission-rss/aggregator.rb', line 21

def reinitialize!(feeds = [], options = {})
  seen_file = options[:seen_file]

  # Prepare Array of feeds URLs.
  @feeds = feeds.map { |config| TransmissionRSS::Feed.new(config) }

  # Nothing seen, yet.
  @seen = SeenFile.new(nil, seen_file)

  # Initialize log instance.
  @log = Log.instance

  # Log number of +@seen+ URIs.
  @log.debug(@seen.size.to_s + ' uris from seenfile')
end

#run(interval = 600) ⇒ Object

Get file enclosures from all feeds items and call on_new_item callback with torrent file URL as argument.



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# File 'lib/transmission-rss/aggregator.rb', line 39

def run(interval = 600)
  @log.debug('aggregator start')

  loop do
    @feeds.each do |feed|
      @log.debug('aggregate ' + feed.url)

      begin
        content = open(feed.url, allow_redirections: :safe).read
      rescue StandardError => e
        @log.debug("retrieval error (#{e.class}: #{e.message})")
        next
      end

      # gzip HTTP Content-Encoding is not automatically decompressed in
      # Ruby 1.9.3.
      content = decompress(content) if RUBY_VERSION == '1.9.3'
      begin
        items = RSS::Parser.parse(content, false).items
      rescue StandardError => e
        @log.debug("parse error (#{e.class}: #{e.message})")
        next
      end

      items.each do |item|
        result = process_link(feed, item)
        next if result.nil?
      end
    end

    sleep(interval)
  end
end