ASP防止跨站脚本和SQL注入代码

使用方法如下：
1. 把以下代码保存为_safe.asp，然后放到站点根目录即可。
<% 
'Code by xieyunc
On Error Resume Next
if request.querystring<>"" then call stophacker(request.querystring,"'|(alert|confirm|prompt)|<[^>]*?>|^+/v(8|9)|onmouse(over|move)=|(and|or).+?(>|<|=|in|like)|/*.+?*/|<s*script|EXEC|UNION.+?SELECT|UPDATE.+?SET|INSERTs+INTO.+?VALUES|(SELECT|DELETE).+?FROM|(CREATE|ALTER|DROP|TRUNCATE)s+(TABLE|DATABASE)")
if Request.ServerVariables("HTTP_REFERER")<>"" then call test(Request.ServerVariables("HTTP_REFERER"),"'|(and|or).+?(>|<|=|in|like)|/*.+?*/|<s*script|EXEC|UNION.+?SELECT|UPDATE.+?SET|INSERTs+INTO.+?VALUES|(SELECT|DELETE).+?FROM|(CREATE|ALTER|DROP|TRUNCATE)s+(TABLE|DATABASE)")
if request.Cookies<>"" then call stophacker(request.Cookies,"(and|or).{1,6}?(=|>|<|in|like)|/*.+?*/|<s*script|EXEC|UNION.+?SELECT|UPDATE.+?SET|INSERTs+INTO.+?VALUES|(SELECT|DELETE).+?FROM|(CREATE|ALTER|DROP|TRUNCATE)s+(TABLE|DATABASE)") 
call stophacker(request.Form,"^+/v(8|9)|(and|or).{1,6}?(=|>|<|in|like)|/*.+?*/|<s*script|<s*img|EXEC|UNION.+?SELECT|UPDATE.+?SET|INSERTs+INTO.+?VALUES|(SELECT|DELETE).+?FROM|(CREATE|ALTER|DROP|TRUNCATE)s+(TABLE|DATABASE)")

function test(values,re)
  dim regex
  set regex=new regexp
  regex.ignorecase = true
  regex.global = true
  regex.pattern = re
  if regex.test(values) then
     IP=Request.ServerVariables("HTTP_X_FORWARDED_FOR")
     If IP = "" Then 
        IP=Request.ServerVariables("REMOTE_ADDR")
     end if
     'slog("<br><br>操作IP: "&ip&"<br>操作时间: " & now() & "<br>操作页面："&Request.ServerVariables("URL")&"<br>提交方式: "&Request.ServerVariables("Request_Method")&"<br>提交参数: "&l_get&"<br>提交数据: "&l_get2)
    Response.Write("<div style='position:fixed;top:0px;100%;height:100%;background-color:white;color:green;font-weight:bold;border-bottom:5px solid #999;'><br>您的提交带有不合法参数,谢谢合作!<br><br></div>")
    Response.end
   end if
   set regex = nothing
end function 


function stophacker(values,re)
 dim l_get, l_get2,n_get,regex,IP
 for each n_get in values
  for each l_get in values
   l_get2 = values(l_get)
   set regex = new regexp
   regex.ignorecase = true
   regex.global = true
   regex.pattern = re
   if regex.test(l_get2) then
      IP=Request.ServerVariables("HTTP_X_FORWARDED_FOR")
      If IP = "" Then 
         IP=Request.ServerVariables("REMOTE_ADDR")
      end if
      'slog("<br><br>操作IP: "&ip&"<br>操作时间: " & now() & "<br>操作页面："&Request.ServerVariables("URL")&"<br>提交方式: "&Request.ServerVariables("Request_Method")&"<br>提交参数: "&l_get&"<br>提交数据: "&l_get2)
    Response.Write("<div style='position:fixed;top:0px;100%;height:100%;background-color:white;color:green;font-weight:bold;border-bottom:5px solid #999;'><br>您的提交带有不合法参数,谢谢合作!<br><br></div>")
    Response.end
   end if
   set regex = nothing
  next
 next
end function 

sub slog(logs)
        dim toppath,fs,Ts
        toppath = Server.Mappath("/index.asp")
        Set fs = CreateObject("scripting.filesystemobject")
        If Not Fs.FILEEXISTS(toppath) Then 
           Set Ts = fs.createtextfile(toppath, True)
           Ts.close
        end if
        Set Ts= Fs.OpenTextFile(toppath,8)
        Ts.writeline (logs)
        Ts.Close
        Set Ts=nothing
        Set fs=nothing
end sub
%>
2.在所需要防护的页面加入代码
<!--#include virtual="/_safe.asp"-->
就可以做到页面防注入、跨站。
如果想整站防注，就在网站的一个公用文件中，如数据库链接文件conn.asp中！
添加<!--#include virtual="/_safe.asp"-->来调用本代码，赶快去试试吧！