##
# This file is part of WhatWeb and may be subject to
# redistribution and commercial restrictions. Please see the WhatWeb
# web site for more information on licensing and terms of use.
# http://www.morningstarsecurity.com/research/whatweb
##
Plugin.define "X-Cache" do
author "Brendan Coles <bcoles@gmail.com>" # 2011-01-30
version "0.1"
description "This plugin identifies the X-Cache HTTP header and extracts the value."

# ShodanHQ results as at 2011-01-30 #
#  3,883 for x-cache-Lookup -squid
# 59,766 for x-cache
# 95,263 for x-cache-Lookup



# Passive #
def passive
	m=[]

	# X-Cache
	if @headers["x-cache"] =~ /(MISS|HIT|NONE) from ([^\r^\n]{1,128})/
#		@headers["x-cache"].each do |x_cache|
		m << { :string=>@headers["x-cache"].to_s.scan(/ from ([^\r^\n]{1,128})/).flatten }
#		end
	end

	# X-Cache-Lookup
	if @headers["x-cache-lookup"] =~ /(MISS|HIT|NONE) from ([^\r^\n]{1,128})/
#		@headers["x-cache-lookup"].each do |x_cache|
		m << { :string=>@headers["x-cache-lookup"].scan(/ from ([^\r^\n]{1,128})/).flatten }
#		end
	end

	# Return passive matches
	m

end

end