ASP调用纯真IP库实例(4)_ASP教程

推荐：ASP实例：ASP实现空间的最近访客
由于工作关系，在做一个用户空间。要用到空间的最近访客，见ASP代码： % username=request.QueryString(username) '地栏中的username,就是自己的用户名了 if trim(request.Cookies(user_name)) Then '首页要判断该访问是否登陆，只有登陆的访问才能记

' ============================================
' 获取字串信息
' ============================================
Private Function GetStr()
Dim c
GetStr = ""
Do While (True)
c = AscB(Stream.Read(1))
If (c = 0) Then Exit Do

'如果是双字节，就进行高字节在结合低字节合成一个字符
If c > 127 Then
If Stream.EOS Then Exit Do
GetStr = GetStr & Chr(AscW(ChrB(AscB(Stream.Read(1))) & ChrB(C)))
Else
GetStr = GetStr & Chr(c)
End If
Loop
End Function
' ============================================
' 核心函数，执行IP搜索
' ============================================
Public Function QQWry(DotIP)
Dim IP, nRet
Dim RangB, RangE, RecNo

IP = IPToInt (DotIP)

Set Stream = CreateObject("ADodb.Stream")
Stream.Mode = 3
Stream.Type = 1
Stream.Open
Stream.LoadFromFile QQWryFile
Stream.Position = 0
Buf = Stream.Read(8)

FirstStartIP = AscB(MidB(Buf, 1, 1)) + (AscB(MidB(Buf, 2, 1))*256) + (AscB(MidB(Buf, 3, 1))*256*256) + (AscB(MidB(Buf, 4, 1))*256*256*256)
LastStartIP = AscB(MidB(Buf, 5, 1)) + (AscB(MidB(Buf, 6, 1))*256) + (AscB(MidB(Buf, 7, 1))*256*256) + (AscB(MidB(Buf, 8, 1))*256*256*256)
RecordCount = Int((LastStartIP - FirstStartIP)/7)
' 在数据库中找不到任何IP地址
If (RecordCount <= 1) Then
Country = "未知"
QQWry = 2
Exit Function
End If

RangB = 0
RangE = RecordCount

Do While (RangB < (RangE - 1))
RecNo = Int((RangB + RangE)/2)
Call GetStartIP (RecNo)
If (IP = StartIP) Then
RangB = RecNo
Exit Do
End If
If (IP > StartIP) Then
RangB = RecNo
Else
RangE = RecNo
End If
Loop

Call GetStartIP(RangB)
Call GetEndIP()

If (StartIP <= IP) And ( EndIP >= IP) Then
' 没有找到
nRet = 0
Else
' 正常
nRet = 3
End If
Call GetCountry(IP)

QQWry = nRet
End Function
' ============================================
' 类终结
' ============================================
Private Sub Class_Terminate
On ErrOr Resume Next
Stream.Close
If Err Then Err.Clear
Set Stream = Nothing
End Sub
End Class
%>

分享：ASP防止GET,Post注入和防止服务器攻击,并记录IP
% '防止GET,Post注入和防止服务器攻击 '使用方法把本文件包含到需要防注的文件就OK了,说明下,这里的post攻击和Get攻击不一定是攻击,在英文版本的时候请注意使用 '冯旭修改 session.Abandon() Dim fxjt111_Attack_post,fxjt111_Attack_Get,fxjt111_Attack_Sys