Module: BotDetection::InstanceMethods

Defined in:
lib/bot_detection/instance_methods.rb

Instance Method Summary collapse

Instance Method Details

#get_hostip(host) ⇒ Object 



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# File 'lib/bot_detection/instance_methods.rb', line 44

def get_hostip(host)
  Socket.gethostbyname(host).last.unpack("C*").join(".")    
end

#get_hostname(ip_address) ⇒ Object 



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# File 'lib/bot_detection/instance_methods.rb', line 40

def get_hostname(ip_address)
  Socket.gethostbyaddr(ip_address.split(".").map(&:to_i).pack("CCCC")).first
end

#is_bing? ⇒ Boolean

Returns:



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# File 'lib/bot_detection/instance_methods.rb', line 36

def is_bing?
  request.user_agent.to_s.downcase.include?("bing")
end

#is_google? ⇒ Boolean

Returns:



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# File 'lib/bot_detection/instance_methods.rb', line 24

def is_google?
  BotDetection::GOOGLE_USER_AGENTS.include?(request.env['HTTP_USER_AGENT']) || request.user_agent.to_s.downcase.include?("googlebot")
end

#is_msn? ⇒ Boolean

Returns:



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# File 'lib/bot_detection/instance_methods.rb', line 32

def is_msn?
  request.user_agent.to_s.downcase.include?("msnbot")
end

#is_search_engine_crawler?(options = {}) ⇒ Boolean

Returns:



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# File 'lib/bot_detection/instance_methods.rb', line 5

def is_search_engine_crawler? options = {}
  remote_ip = options.delete(:ip) || options.delete(:ip_address) || request.remote_ip
  return false if remote_ip.blank? || (!is_google? && !is_yahoo? && !is_msn? && !is_bing?)

  return true if options.delete(:development)

  found = false
  host = get_hostname(remote_ip)
  ["crawl.yahoo.net", "googlebot", "search.msn.com", "ask.com"].each do |h|
    found = true and break if host.include?(h)
  end

  return false unless found
  
  host_ip = get_hostip(host)
  return host_ip == remote_ip
  false
end

#is_yahoo? ⇒ Boolean

Returns:



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# File 'lib/bot_detection/instance_methods.rb', line 28

def is_yahoo?
  request.user_agent.to_s.downcase.include?("yahoo! slurp")
end