| 以下是引用片段: <% Dim Query_Badword,Form_Badword,i,Err_Message,Err_Web,name '------定义部份 头---------------------------------------------------------------------- Err_Message = 1 '处理方式:1=提示信息,2=转向页面,3=先提示再转向 Err_Web = "Err.Asp" '出错时转向的页面 Query_Badword="'∥and∥select∥update∥chr∥delete∥%20from∥;∥insert∥mid∥master.∥set∥chr(37)∥=" '在这部份定义get非法参数,使用"∥"号间隔 Form_Badword="'∥%∥&∥*∥#∥(∥)∥=" '在这部份定义post非法参数,使用"∥"号间隔 '------定义部份 尾----------------------------------------------------------------------- ' On Error Resume Next '----- 对 get query 值 的过滤. if request.QueryString<>"" then //request.QueryString Chk_badword=split(Query_Badword,"∥") //用split()把参数分割了 FOR EACH Query_Name IN Request.QueryString for i=0 to ubound(Chk_badword) If Instr(LCase(request.QueryString(Query_Name)),Chk_badword(i))<>0 Then //呵呵,他们还没有低级到连LCase()都不用! Select Case Err_Message Case "1" Response.Write "<Script Language=JavaScript>alert('传参错误!参数 "&name&" 的值中包含非法字符串!\n\n请不要在参数中出现:and update delete ; insert mid master 等非法字符!');window.close();</Script>" Case "2" Response.Write "<Script Language=JavaScript>location.href='"&Err_Web&"'</Script>" Case "3" Response.Write "<Script Language=JavaScript>alert('传参错误!参数 "&name&"的值中包含非法字符串!\n\n请不要在参数中出现:and update delete ; insert mid master 等非法字符!');location.href='"&Err_Web&"';</Script>" End Select Response.End End If NEXT NEXT End if '-----对 post 表 单值的过滤. if request.form<>"" then //request.form Chk_badword=split(Form_Badword,"∥") FOR EACH name IN Request.Form for i=0 to ubound(Chk_badword) If Instr(LCase(request.form(name)),Chk_badword(i))<>0 Then Select Case Err_Message Case "1" Response.Write "<Script Language=JavaScript>alert('出错了!表单 "&name&" 的值中包含非法字符串!\n\n请不要在表单中出现: % & * # ( ) 等非法字符!');window.close();</Script>" Case "2" Response.Write "<Script Language=JavaScript>location.href='"&Err_Web&"'</Script>" Case "3" Response.Write "<Script Language=JavaScript>alert('出错了!参数 "&name&"的值中包含非法字符串!\n\n请不要在表单中出现: % & * # ( ) 等非法字符!');location.href='"&Err_Web&"';</Script>" End Select Response.End End If NEXT NEXT end if %> |
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