Class: DeadFinder::Runner

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

Instance Method Summary collapse

Instance Method Details

#default_options ⇒ Object 



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# File 'lib/deadfinder.rb', line 31

def default_options
  {
    'concurrency' => 50,
    'timeout' => 10,
    'output' => '',
    'output_format' => 'json',
    'headers' => [],
    'worker_headers' => [],
    'silent' => true,
    'verbose' => false,
    'include30x' => false
  }
end

#run(target, options) ⇒ Object 



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# File 'lib/deadfinder.rb', line 45

def run(target, options)
  Logger.set_silent if options['silent']
  headers = options['headers'].each_with_object({}) do |header, hash|
    kv = header.split(': ')
    hash[kv[0]] = kv[1]
  rescue StandardError
  end
  page = Nokogiri::HTML(URI.open(target, headers))
  links = extract_links(page)

  total_links_count = links.values.flatten.length
  link_info = links.map { |type, urls| "#{type}:#{urls.length}" if urls.length.positive? }
                   .compact.join(' / ')
  Logger.sub_info "Found #{total_links_count} URLs. [#{link_info}]" unless link_info.empty?
  Logger.sub_info 'Checking'

  jobs = Channel.new(buffer: :buffered, capacity: 1000)
  results = Channel.new(buffer: :buffered, capacity: 1000)

  (1..options['concurrency']).each do |w|
    Channel.go { worker(w, jobs, results, target, options) }
  end

  links.values.flatten.uniq.each do |node|
    result = generate_url(node, target)
    jobs << result unless result.nil?
  end

  jobs_size = jobs.size
  jobs.close

  (1..jobs_size).each { ~results }
  Logger.sub_done 'Done'
rescue StandardError => e
  Logger.error "[#{e}] #{target}"
end

#worker(_id, jobs, results, target, options) ⇒ Object 



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# File 'lib/deadfinder.rb', line 82

def worker(_id, jobs, results, target, options)
  jobs.each do |j|
    if CACHE_SET[j]
      Logger.found "[404 Not Found] #{j}" unless CACHE_QUE[j]
    else
      CACHE_SET[j] = true
      begin
        CACHE_QUE[j] = true
        uri = URI.parse(j)
        proxy_uri = URI.parse(options['proxy']) if options['proxy'] && !options['proxy'].empty?
        http = if proxy_uri
                 Net::HTTP.new(uri.host, uri.port,
                               proxy_uri.host, proxy_uri.port,
                               proxy_uri.user, proxy_uri.password)
               else
                 Net::HTTP.new(uri.host, uri.port)
               end
        http.use_ssl = (uri.scheme == 'https')
        http.read_timeout = options['timeout'].to_i if options['timeout']
        http.verify_mode = OpenSSL::SSL::VERIFY_NONE if http.use_ssl?

        request = Net::HTTP::Get.new(uri.request_uri)
        request['User-Agent'] = options['user_agent']
        options['worker_headers']&.each do |header|
          key, value = header.split(':', 2)
          request[key.strip] = value.strip
        end

        response = http.request(request)
        status_code = response.code.to_i
        Logger.verbose "Status Code: #{status_code} for #{j}" if options['verbose']

        if status_code >= 400 || (status_code >= 300 && options['include30x'])
          Logger.found "[#{status_code} #{response.message}] #{j}"
          CACHE_QUE[j] = false
          DeadFinder.output[target] ||= []
          DeadFinder.output[target] << j
        end
      rescue StandardError => e
        Logger.verbose "[#{e}] #{j}" if options['verbose']
      end
    end
    results << j
  end
end