Method: Cobweb#start

Defined in:
lib/cobweb.rb

#start(base_url) ⇒ Object

This method starts the resque based crawl and enqueues the base_url



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# File 'lib/cobweb.rb', line 70

def start(base_url)
  raise ":base_url is required" unless base_url
  request = {
    :crawl_id => Digest::SHA1.hexdigest("#{Time.now.to_i}.#{Time.now.usec}"),
    :url => base_url
  }

  if @options[:internal_urls].nil? || @options[:internal_urls].empty?
    uri = Addressable::URI.parse(base_url)
    @options[:internal_urls] = []

    if @options[:treat_https_as_http_to]
      @options[:internal_urls] << ["http://", uri.host, "/*"].join
      @options[:internal_urls] << ["http://", uri.host, ":", uri.inferred_port, "/*"].join
      @options[:internal_urls] << ["https://", uri.host, "/*"].join
      @options[:internal_urls] << ["https://", uri.host, ":", uri.inferred_port, "/*"].join
    else
      @options[:internal_urls] << [uri.scheme, "://", uri.host, "/*"].join
      @options[:internal_urls] << [uri.scheme, "://", uri.host, ":", uri.inferred_port, "/*"].join
    end

  end

  request.merge!(@options)
  @redis = Redis::Namespace.new("cobweb-#{Cobweb.version}-#{request[:crawl_id]}", :redis => RedisConnection.new(request[:redis_options]))
  @redis.set("original_base_url", base_url)
  @redis.hset "statistics", "queued_at", DateTime.now
  @redis.set("crawl-counter", 0)
  queue_counter = @options[:seed_urls].count + 1
  puts "queue_counter being init to #{queue_counter}"
  @redis.set("queue-counter", queue_counter)


  @options[:seed_urls].map{|link| @redis.sadd "queued", link }

  @stats = Stats.new(request)
  @stats.start_crawl(request)

  # add internal_urls into redis
  @options[:internal_urls].map{|url| @redis.sadd("internal_urls", url)}
  if @options[:queue_system] == :resque
    Resque.enqueue(CrawlJob, request)
  elsif @options[:queue_system] == :sidekiq
    CrawlWorker.perform_async(request)
    @options[:seed_urls].map{|url| 
      new_request = request.clone
      new_request[:url] = url
      CrawlWorker.perform_async(new_request)
    }

  else
    raise "Unknown queue system: #{content_request[:queue_system]}"
  end

  request
end