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较为全面的asp防CC攻击代码分享
摘要:复制代码代码如下:0ThenResponse.Write("系统繁忙,请稍候再试!错误代码003")Response.End()EndIfE...

复制代码 代码如下:

<%

Dim CC_Info(4),strInfo,strTemp

If Session("CC_Info") = "" Then

CC_Info(0) = "cclog.txt" '日志文件名

CC_Info(1) = Request.ServerVariables("HTTP_X_FORWARDED_FOR")

CC_Info(2) = Request.ServerVariables("REMOTE_ADDR")

CC_Info(3) = 10 'N秒内禁止刷新当前页面

CC_Info(4) = "badip.txt" 'IP黑名单文件名

Session("CC_Info") = CC_Info(0) &"|"& CC_Info(1) &"|"& CC_Info(2) &"|"& CC_Info(3) &"|"& CC_Info(4)

Else

strInfo = Split(Session("CC_Info"),"|")

CC_Info(0) = strInfo(0)

CC_Info(1) = strInfo(1)

CC_Info(2) = strInfo(2)

CC_Info(3) = strInfo(3)

CC_Info(4) = strInfo(4)

End If

Const chkRefresh = 1 '0关闭防刷新

Const chkProxy = 1 '0关闭代理验证

Const chkBadIP = 1 '0关闭IP黑名单

If Session("BadIP") = "" Then

strInfo = ReadFile(CC_Info(4))

If strInfo = "" Then strInfo = "chinavb.net"

Session("BadIP") = strInfo

Else

strInfo = Session("BadIP")

End If

'/*第一层判断,N秒内禁止刷新*/

If chkRefresh = 1 Then

If Session("RefreshTime")="" Then

Session("RefreshTime")=Now()

Else

If DateDiff("s", Session("RefreshTime"), Now()) < CInt(CC_Info(3)) Then

Response.Write("系统繁忙,请稍候再试!错误代码001")

Response.End()

Else

Session("RefreshTime")=Now()

End If

End If

End If

'/*第二层判断,代理禁止查看*/

If chkProxy = 1 Then

If CC_Info(1) <> "" Then

If InStr(strInfo,CC_Info(1)) = 0 Then

strTemp = CC_Info(1) & vbCrLf

If InStr(strInfo,CC_Info(2)) = 0 Then

strTemp = strTemp & "[" & CC_Info(2) & "]" & vbCrLf

End If

SaveLog CC_Info(4),strTemp

strInfo = strInfo & strTemp

Session("BadIP") = strInfo

End If

'记录CC攻击日志

SaveLog CC_Info(0),CC_Info(1) & "["& CC_Info(2) & "]" & Now() &vbCrLf

Response.Write("系统繁忙,请稍候再试!错误代码002")

Response.End()

End If

End If

'/*第三层判断,IP黑名单禁止查看*/

If chkBadIP = 1 Then

If InStr(strInfo,CC_Info(2))>0 Then

Response.Write("系统繁忙,请稍候再试!错误代码003")

Response.End()

End If

End If

'ForReading=1,ForWriting=2,ForAppending=8

Function SaveLog(filename, filecontent)

On Error Resume Next

Dim fso, thisfile

filename = Server.MapPath(filename)

Set fso = CreateObject("Scripting.FileSystemObject")

If Err <> 0 Then

Response.Write("写入文件"&filename&"失败,可能您的系统不支持FSO!")

Response.End()

End If

Set thisfile = fso.OpenTextFile(filename, 8, True)

thisfile.write (filecontent)

thisfile.Close

Set fso = Nothing

End Function

Function ReadFile(filename)

On Error Resume Next

Dim fso, thisfile

Set fso = CreateObject("Scripting.FileSystemObject")

If Err <> 0 Then

Response.Write("读取文件"&filename&"失败,可能您的系统不支持FSO!")

Response.End()

End If

Set thisfile = fso.OpenTextFile(Server.MapPath(filename), 1, True)

ReadFile = thisfile.ReadAll

thisfile.Close

Set thisfile = Nothing

Set fso = Nothing

End Function

%>

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