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回答时间:1天前
<%
部份代码.
Function HTMLEncode(fString)
fString=replace(fString,";",";")
fString=replace(fString,"<","<")
fString=replace(fString,">",">")
fString=replace(fString,"\","\")
fString=replace(fString,"--","--")
fString=replace(fString,CHR(9)," ")
fString=replace(fString,CHR(10),"<br>")
fString=replace(fString,CHR(13),"")
fString=replace(fString,CHR(22),"")
fString=replace(fString,CHR(32)," ")
fString=replace(fString,CHR(34),""")'双引号
fString=replace(fString,CHR(39),"'")'单引号
HTMLEncode=fString
End Function
Dim Fy_Url,Fy_a,Fy_x,Fy_Cs(),Fy_Cl,Fy_Ts,Fy_Zx
Fy_Cl = 1 '处理方式:1=提示信息,2=转向页面,3=先提示再转向
Fy_Zx = "Error.Asp" '出错时转向的页面
On Error Resume Next
Fy_Url=Request.ServerVariables("QUERY_STRING")
Fy_a=split(Fy_Url,"&")
redim Fy_Cs(ubound(Fy_a))
On Error Resume Next
for Fy_x=0 to ubound(Fy_a)
Fy_Cs(Fy_x) = left(Fy_a(Fy_x),instr(Fy_a(Fy_x),"=")-1)
Next
For Fy_x=0 to ubound(Fy_Cs)
If Fy_Cs(Fy_x)<>"" Then
If Instr(LCase(Request(Fy_Cs(Fy_x))),"'")<>0 or Instr(LCase(Request(Fy_Cs(Fy_x))),"%20and%20")<>0 or Instr(LCase(Request(Fy_Cs(Fy_x))),"%20select%20")<>0 or Instr(LCase(Request(Fy_Cs(Fy_x))),"%20update%20")<>0 or Instr(LCase(Request(Fy_Cs(Fy_x))),"%20chr")<>0 or Instr(LCase(Request(Fy_Cs(Fy_x))),"delete%20from")<>0 or Instr(LCase(Request(Fy_Cs(Fy_x))),";")<>0 or Instr(LCase(Request(Fy_Cs(Fy_x))),"%20insert%20")<>0 or Instr(LCase(Request(Fy_Cs(Fy_x))),"%20mid")<>0 Or Instr(LCase(Request(Fy_Cs(Fy_x))),"master.")<>0 Then
Select Case Fy_Cl
Case "1"
Response.Write "<Script Language=JavaScript>alert(' 出现错误!参数 "&Fy_Cs(Fy_x)&" 的值中包含非法字符串!\n\n 请不要在参数中出现:;,and,select,update,insert,delete,chr 等非法字符!');window.close();</Script>"
Case "2"
Response.Write "<Script Language=JavaScript>location.href='"&Fy_Zx&"'</Script>"
Case "3"
Response.Write "<Script Language=JavaScript>alert(' 出现错误!参数 "&Fy_Cs(Fy_x)&"的值中包含非法字符串!\n\n 请不要在参数中出现:;,and,select,update,insert,delete,chr 等非法字符!');location.href='"&Fy_Zx&"';</Script>"
End Select
Response.End
End If
End If
Next
squery=lcase(Request.ServerVariables("QUERY_STRING"))
sURL=lcase(Request.ServerVariables("HTTP_HOST"))
allquery=squery+sURL
if InStr(allquery,"%20")<>0 or InStr(allquery," ")<>0 or InStr(allquery,"%27")<>0 or InStr(allquery,"'")<>0 or InStr(allquery,"%a1a1")<>0 or InStr(allquery," ")<>0 or InStr(allquery,"%24")<>0 or InStr(allquery,"$")<>0 or InStr(allquery,"%3b")<>0 or InStr(allquery,";")<>0 or InStr(allquery,"%%")<>0 or InStr(allquery,"%3c")<>0 or InStr(allquery,"<")<>0 or InStr(allquery,"%3e")<>0 or InStr(allquery,">")<>0 or InStr(allquery,"%28")<>0 or InStr(allquery,"(")<>0 or InStr(allquery,"%29")<>0 or InStr(allquery,")")<>0 then
response.write "非法访问"
Response.End
end if
%>
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热心网友
回答时间:1天前
<%
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
Chk_badword=split(Query_Badword,"‖")
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
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
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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