asp字符过滤

<%

squery=lcase(Request.ServerVariables("QUERY_STRING"))

sURL=lcase(Request.ServerVariables("HTTP_HOST"))

SQL_injdata =":|;|>|<|--|sp_|xp_||dir|cmd|^|(|)|+|$|'|copy|format|and|exec|insert|select|delete|update|count|*|%|chr|mid|master|truncate|char|declare"

SQL_inj = split(SQL_Injdata,"|")

For SQL_Data=0 To Ubound(SQL_inj)

if instr(squery&sURL,Sql_Inj(Sql_DATA))>0 Then

Response.Write "请不要注入系统"

Response.end

end if

next 

%>