asp 防采集代码 二

user_agent=Request.ServerVariables("HTTP_USER_AGENT")
http_reffer=Request.ServerVariables("HTTP_REFERER")
server_name=Request.ServerVariables("SERVER_NAME")
'检查当前用户是否是蜘蛛人
function check(user_agent)
allow_agent=split("Baiduspider,Scooter,ia_archiver,Googlebot,FAST-WebCrawler,MSNBOT,Slurp",",")
check_agent=false
for agenti=lbound(allow_agent) to ubound(allow_agent)
if instr(user_agent,allow_agent(agenti))>0 then
check_agent=true
exit for
end if
next
check=check_agent
end function
if check(user_agent)=False then
if http_reffer="" or left(http_reffer,len("http://"&server_name)+1)<>"http://"&server_name&"/" then
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