'==========================
'过滤提交表单中的SQL
'==========================
function ForSqlForm()
 dim fqys,errc,i,items
 dim nothis(18)
 nothis(0)="net user"

nothis(1)="xp_cmdshell"

nothis(2)="/add"

nothis(3)="exec%20master.dbo.xp_cmdshell"

nothis(4)="net localgroup administrators"

nothis(5)="select"

nothis(6)="count"

nothis(7)="asc"

nothis(8)="char"

nothis(9)="mid"

nothis(10)="'"

nothis(11)=":"

nothis(12)=""""

nothis(13)="insert"

nothis(14)="delete"

nothis(15)="drop"

nothis(16)="truncate"

nothis(17)="from"

nothis(18)="%"
 
 'nothis(19)="@" 

errc=false

for i= 0 to ubound(nothis)
  for each items in request.Form
  if instr(request.Form(items),nothis(i))<>0 then
response.write("<div>")
response.write("你所填写的信息:" & server.HTMLEncode(request.Form(items))
& "<br>含非法字符:" & nothis(i))
response.write("</div>")
response.write("对不起,你所填写的信息含非法字符！
<a href=""#"" onclick=""history.back()"">返回</a>")
response.End()
  end if
  next
 next
end function
'==========================
'过滤查询中的SQL
'==========================
function ForSqlInjection()
 dim fqys,errc,i
 dim nothis(19)
 fqys = request.ServerVariables("QUERY_STRING")
 nothis(0)="net user"

nothis(1)="xp_cmdshell"

nothis(2)="/add"

nothis(3)="exec%20master.dbo.xp_cmdshell"

nothis(4)="net localgroup administrators"

nothis(5)="select"

nothis(6)="count"

nothis(7)="asc"

nothis(8)="char"

nothis(9)="mid"

nothis(10)="'"

nothis(11)=":"

nothis(12)=""""

nothis(13)="insert"

nothis(14)="delete"

nothis(15)="drop"

nothis(16)="truncate"

nothis(17)="from"

nothis(18)="%"
 
 nothis(19)="@" 

errc=false

for i= 0 to ubound(nothis)

if instr(FQYs,nothis(i))<>0 then

errc=true

end if

next

if errc then
 response.write "查询信息含非法字符！<a href=""#"" onclick=""history.back()"">返回</a>"
 response.end

end if

end function