Class: DomainsScanner::Runner

Inherits:
Object
  • Object
show all
Defined in:
lib/domains_scanner/runner.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(domain_word:, top_level_domain:) ⇒ Runner 



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# File 'lib/domains_scanner/runner.rb', line 5

def initialize(domain_word:, top_level_domain:)
  @domain_word = domain_word
  @top_level_domain = top_level_domain
end

Instance Attribute Details

#workers ⇒ Object (readonly)

Returns the value of attribute workers.



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# File 'lib/domains_scanner/runner.rb', line 3

def workers
  @workers
end

Instance Method Details

#run ⇒ Object 



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# File 'lib/domains_scanner/runner.rb', line 10

def run
  domain = "#{@domain_word}.#{@top_level_domain}"
  DomainsScanner::Printer.puts { "Start scan #{domain}".green }
  @workers = DomainsScanner.engines.map do |engine|
    crawler = DomainsScanner::Crawlers.build(engine)
    page = 1
    next_page_link = nil

    Thread.new do
      loop do
        DomainsScanner::Printer.puts { "Scanning #{domain} with #{engine} on page: #{page}".yellow }

        begin
          if page == 1
            DomainsScanner::Printer.puts { "Search by form>>" }
            results = crawler.search_by_form(@domain_word, @top_level_domain)
          else
            DomainsScanner::Printer.puts { "Search by link: #{next_page_link}>>" }
            results = crawler.search_by_link(next_page_link)
          end
          next_page_link = results.next_page_link

          results.items.each do |item|
            # Avoid some unexpected hostname from ads
            if item.host.to_s.include?(domain)
              DomainsScanner.output_queue.push({
                  domain: item.host, top_level_domain: @top_level_domain, engine: engine
                })
            else
              DomainsScanner::Printer.puts { "Abondon unexpected domain: #{item.host}".red }
            end
          end
        rescue Mechanize::ResponseCodeError => e
          DomainsScanner::Printer.puts { "Search in #{engine} error, skip now! Reason: #{e.message}".red  }
        end

        break unless next_page_link && page < DomainsScanner.max_page
        page += 1
      end
    end
  end

  @workers.each(&:join)
end