ASP通用防注入代码.杜绝SQL注入隐患.提升网站安全

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'ASP通用防注入代码                                    
'您可以把该代码COPY到头文件中.也可以单独作
'为一个文件存在,每次调用使用                      
'作者:y3gu - 2005-7-29                                                                  
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Dim GetFlag Rem(提交方式)
Dim ErrorSql Rem(非法字符)
Dim RequestKey Rem(提交数据)
Dim ForI Rem(循环标记)
ErrorSql = "'~;~and~(~)~exec~update~count~*~%~chr~mid~master~truncate~char~declare" Rem(每个敏感字符或者词语请使用半角 "~" 格开)
ErrorSql = split(ErrorSql,"~")
If Request.ServerVariables("REQUEST_METHOD")="GET" Then
GetFlag=True
Else
GetFlag=False
End If
If GetFlag Then
  For Each RequestKey In Request.QueryString
   For ForI=0 To Ubound(ErrorSql)
    If Instr(LCase(Request.QueryString(RequestKey)),ErrorSql(ForI))<>0 Then
    response.write "<script>alert(""警告:\n请不要使用敏感字符"");location.href=""Sql.asp"";</script>"
    Response.End
    End If
   Next
  Next
Else
  For Each RequestKey In Request.Form
   For ForI=0 To Ubound(ErrorSql)
    If Instr(LCase(Request.Form(RequestKey)),ErrorSql(ForI))<>0 Then
    response.write "<script>alert(""警告:\n请不要使用敏感字符"");location.href=""Sql.asp"";</script>"
    Response.End
    End If
   Next
  Next
End If
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