module Rex
module Parser

# XXX - Retina XML does not include ANY service/port information export
class RetinaXMLStreamParser

	attr_accessor :on_found_host

	def initialize(on_found_host = nil)
		reset_state
		self.on_found_host = on_found_host if on_found_host
	end

	def reset_state
		@state = :generic_state
		@host  = { 'vulns' => [] }
		reset_audit_state
	end
	
	def reset_audit_state
		@audit = { 'refs' => [] }
	end

	def tag_start(name, attributes)
		@state = "in_#{name.downcase}".intern
	end

	def text(str)
		case @state
		when :in_ip
			@host["address"] = str
		when :in_dnsname
			@host["hostname"] = str.split(/\s+/).first
		when :in_netbiosname
			@host["netbios"] = str
		when :in_mac
			@host["mac"] = str
		when :in_os
			@host["os"] = str
		when :in_rthid
			@audit['refs'].push(['RETINA', str])
		when :in_cve
			str.split(",").each do |cve|
				cve = cve.to_s.strip
				next if cve.empty?
				pre,val = cve.split('-', 2)
				next if not val
				next if pre != "CVE"
				@audit['refs'].push( ['CVE', val] )
			end
		when :in_name
			@audit['name'] = str
		when :in_description
			@audit['description'] = str
		when :in_risk
			@audit['risk'] = str
		when :in_cce
			@audit['cce'] = str
		when :in_date
			@audit['data'] = str
		end
	end

	def tag_end(name)
		case name
		when "host"
			on_found_host.call(@host) if on_found_host
			reset_state
		when "audit"
			@host['vulns'].push @audit
			reset_audit_state
		end
	end

	# We don't need these methods, but they're necessary to keep REXML happy
	def xmldecl(version, encoding, standalone); end
	def cdata; end
	def comment(str); end
	def instruction(name, instruction); end
	def attlist; end
end
end
end

__END__
<scanJob>
	<hosts>
		<host>
			<ip>10.2.79.98</ip>
			<netBIOSName>bsmith-10156B07C</netBIOSName>
			<dnsName>bsmith-10156b07c.core.testcorp.com  random.testcorp.com</dnsName>
			<mac>00:02:29:0E:38:2B</mac>
			<os>Windows Server 2003 (X64), Service Pack 2</os>
			<audit>
				<rthID>7851</rthID>
				<cve>CVE-2009-0089,CVE-2009-0550,CVE-2009-0086</cve>
				<cce>N/A</cce>
				<name>Microsoft Windows HTTP Services Multiple Vulnerabilities (960803)</name>
				<description>Microsoft Windows HTTP Services contains multiple vulnerabilities when handling ..</description>
				<date>09/15/2010</date>
				<risk>Low</risk>
				<pciLevel>5 (Urgent)</pciLevel>
				<cvssScore>10 [AV:N/AC:L/Au:N/C:C/I:C/A:C]</cvssScore>
				<fixInformation>....</fixInformation>
			</audit>
		</host>
	</hosts>
</scanJob>