我试图解析一些nmap XML通过Nokogiri检索各种值,但有相当一段时间计算出递归。我想要的是抓住ip_address
和具有status='open'
子元素的任何port
元素。我希望能够把每一组成JSON对象保存到数据库中列后显示:Nokogiri检索嵌套结果
到目前为止,这是我的代码:
require 'nokogiri'
require 'json'
doc = File.open("network_ports.xml") { |f| Nokogiri::XML(f) }
doc.xpath('//host').each do |host|
@ip_address = host.at_xpath("address[@addrtype='ipv4']").at_xpath("@addr").value
puts "Found Host: #{@ip_address}"
host.xpath('ports/port').each do |port|
if port.at_xpath("state[@state='open']")
puts port.at_xpath("port[@portid]").value
end
end
end
但是我的输出被打破,现在与以下错误:
port_parser.rb:11:in `block (2 levels) in <main>': undefined method `value' for nil:NilClass (NoMethodError)
从文件中的一些相同的输入:
<host starttime="1501187906" endtime="1501189103"><status state="up" reason="syn-ack" reason_ttl="0"/>
<address addr="10.10.10.1" addrtype="ipv4"/>
<hostnames>
<hostname name="eclipse" type="PTR"/>
</hostnames>
<ports><extraports state="closed" count="996">
<extrareasons reason="conn-refused" count="996"/>
</extraports>
<port protocol="tcp" portid="53"><state state="open" reason="syn-ack" reason_ttl="0"/><service name="domain" product="dnsmasq" version="2.45" method="probed" conf="10"><cpe>cpe:/a:thekelleys:dnsmasq:2.45</cpe></service></port>
<port protocol="tcp" portid="80"><state state="filtered" reason="syn-ack" reason_ttl="0"/><service name="http" product="DD-WRT milli_httpd" hostname="eclipse" method="probed" conf="10"/></port>
<port protocol="tcp" portid="443"><state state="open" reason="syn-ack" reason_ttl="0"/><service name="https" tunnel="ssl" method="table" conf="3"/></port>
<port protocol="tcp" portid="2222"><state state="open" reason="syn-ack" reason_ttl="0"/><service name="ssh" product="Dropbear sshd" version="0.52" extrainfo="protocol 2.0" ostype="Linux" method="probed" conf="10"><cpe>cpe:/a:matt_johnston:dropbear_ssh_server:0.52</cpe><cpe>cpe:/o:linux:linux_kernel</cpe></service></port>
</ports>
<times srtt="4727" rttvar="1840" to="100000"/>
</host>
我是否遇到问题,因为我依赖于port
元素中嵌套的state
元素,我需要能够从中获取portid
属性值?
最后,我只是希望一些输出,如:
Found host: 10.10.10.1
port 22/tcp open
port 23/tcp open
Found host: 10.10.10.2
port 443/tcp open
port 5432/tcp open
etc...
如果您有关于清理代码的任何建议,我所有的耳朵,以及!
啊,那是我的问题!所以从儿童'国家'元素的回归根本不是问题!谢谢 – Godzilla74