Class: LogStash::Filters::UaParser

Inherits:
Base
  • Object
show all
Defined in:
lib/logstash/filters/ua_parser.rb

Instance Method Summary collapse

Instance Method Details

#filter(event) ⇒ Object 



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# File 'lib/logstash/filters/ua_parser.rb', line 19

def filter(event)
  # 获取用户代理字符串
  useragent = event.get(@source)
  return if useragent.nil? || !useragent.is_a?(String) || useragent.strip == ""

  # 将用户代理字符串传递给 UserAgent 解析器
  begin
    data = UserAgentParser.parse useragent
  rescue StandardError => e
    @logger.error("Uknown error while parsing device data", :exception => e, :field => @source, :event => event)
    return
  end
  return unless data
  # Remove original source (if its also the target)
  event.remove(@source) if @target == @source

  # 提取系统和浏览器信息
  begin
    # is_mobile = false
    # mozilla = false
    # model = true
    is_bot = false
    spider = ""
    platform = "Other"
    # os_full = "Other"
    # engine = ""
    # engine_version = ""
    browser = ""
    browser_version = ""
    # browser_full = ""
    os_name = ""
    os_version = ""
    device_name = ""
    device_brand = ""
    if data.family
      browser = data.family.to_s
    end
    if data.version
      browser_version = data.version.to_s
    end
    # if data.to_s
    #   browser_full = data.to_s
    # end
    # if data.os
    #   os_full = data.os.to_s
    # end
    if data.os
      os = data.os.to_s
      os_arr = os.split(" ")
      os_name = os_arr.at(0)
      if os_arr.length > 1
        os_version = os_arr.at(1)
      end
    end
    if data.device
      device_brand = data.device.brand.to_s
      device_name = data.device.to_s
      platform = data.device.model.to_s
    end
    bot = CrawlerDetect.new(useragent)
    if bot.is_crawler?
      is_bot = true
      spider = bot.crawler_name
    end
    target_hash = {
      "browser" => {
        "name" => browser,
        "version" => browser_version
      },
      "os" => {
        "name" => os_name,
        "version" => os_version
      },
      "device" => {
        "name" => device_name,
        "brand" => device_brand,
        "type" => platform
      },
      "isBot" => is_bot
    }
    if is_bot
      target_hash['botName'] = spider
    end
    event.set("#{@target}", target_hash)
  rescue StandardError => e
    @logger.error("Uknown error while setting device data", :exception => e, :field => @source, :event => event)
    return
  end

  # 过滤器处理完成后，将事件返回
  filter_matched(event)
end

#register ⇒ Object 



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# File 'lib/logstash/filters/ua_parser.rb', line 14

def register
  # Nothing to do here
end