用VBS脚本查询纯真IP库QQWry.dat(转）

查询给的IP地址所在的国家，ADSL服务商名称：

前提：需要提供一个纯真的IP库，这个可以只需将从网上搜索QQWry.dat进行搜索这个文件下载即可，然后将该文件放到与该脚本同目录下即可。

原文地址：http://demon.tw/programming/vbs-qqwry-dat.html

无他，只不过想证明其他主流语言能实现的 VBS 不一定不能实现而已，而且早就已经有人实现了，只不过是在 ASP 中，作者不详。我测试了一下貌似能用，只不过这个类封装得不太好，我稍微修改了一下属性的访问修饰符。

Class TQQWry
    ' ============================================
    ' 变量声名
    ' ============================================
    Public Country, LocalStr
    Public QQWryFile
    Private Buf, OffSet
    Private StartIP, EndIP, CountryFlag
    Private FirstStartIP, LastStartIP, RecordCount
    Private Stream, EndIPOff
    ' ============================================
    ' 类模块初始化
    ' ============================================
    Private Sub Class_Initialize
        Country       = ""
        LocalStr      = ""
        StartIP       = 0
        EndIP         = 0
        CountryFlag   = 0
        FirstStartIP  = 0
        LastStartIP   = 0
        EndIPOff      = 0
        QQWryFile     = "QQWry.Dat"
    End Sub
    ' ============================================
    ' 类终结
    ' ============================================
    Private Sub Class_Terminate
        On ErrOr Resume Next
        Stream.Close
        If Err Then Err.Clear
        Set Stream = Nothing
    End Sub
    ' ============================================
    ' IP地址转换成整数
    ' ============================================
    Function IPToInt(IP)
        Dim IPArray, i
        IPArray = Split(IP, ".", -1)
        FOr i = 0 to 3
            If Not IsNumeric(IPArray(i)) Then IPArray(i) = 0
            If CInt(IPArray(i)) < 0 Then IPArray(i) = Abs(CInt(IPArray(i)))
            If CInt(IPArray(i)) > 255 Then IPArray(i) = 255
        Next
        IPToInt = (CInt(IPArray(0))*256*256*256) + (CInt(IPArray(1))*256*256) + (CInt(IPArray(2))*256) + CInt(IPArray(3))
    End Function
    ' ============================================
    ' 整数逆转IP地址
    ' ============================================
    Function IntToIP(IntValue)
        p4 = IntValue - Fix(IntValue/256)*256
        IntValue = (IntValue-p4)/256
        p3 = IntValue - Fix(IntValue/256)*256
        IntValue = (IntValue-p3)/256
        p2 = IntValue - Fix(IntValue/256)*256
        IntValue = (IntValue - p2)/256
        p1 = IntValue
        IntToIP = Cstr(p1) & "." & Cstr(p2) & "." & Cstr(p3) & "." & Cstr(p4)
    End Function
    ' ============================================
    ' 获取开始IP位置
    ' ============================================
    Private Function GetStartIP(RecNo)
        OffSet = FirstStartIP + RecNo * 7
        Stream.Position = OffSet
        Buf = Stream.Read(7)

        EndIPOff = AscB(MidB(Buf, 5, 1)) + (AscB(MidB(Buf, 6, 1))*256) + (AscB(MidB(Buf, 7, 1))*256*256)
        StartIP = 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)
        GetStartIP = StartIP
    End Function
    ' ============================================
    ' 获取结束IP位置
    ' ============================================
    Private Function GetEndIP()
        Stream.Position = EndIPOff
        Buf = Stream.Read(5)
        EndIP = 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)
        CountryFlag = AscB(MidB(Buf, 5, 1))
        GetEndIP = EndIP
    End Function
    ' ============================================
    ' 获取地域信息，包含国家和和省市
    ' ============================================
    Private Sub GetCountry(IP)
        If (CountryFlag = 1 Or CountryFlag = 2) Then
            Country = GetFlagStr(EndIPOff + 4)
            If CountryFlag = 1 Then
                LocalStr = GetFlagStr(Stream.Position)
                ' 以下用来获取数据库版本信息
                If IP >= IPToInt("255.255.255.0") And IP <= IPToInt("255.255.255.255") Then
                    LocalStr = GetFlagStr(EndIPOff + 21)
                    Country = GetFlagStr(EndIPOff + 12)
                End If
            Else
                LocalStr = GetFlagStr(EndIPOff + 8)
            End If
        Else
            Country = GetFlagStr(EndIPOff + 4)
            LocalStr = GetFlagStr(Stream.Position)
        End If
        ' 过滤数据库中的无用信息
        Country = Trim(Country)
        LocalStr = Trim(LocalStr)
        If InStr(Country, "CZ88.NET") Then Country = ""
        If InStr(LocalStr, "CZ88.NET") Then LocalStr = ""
    End Sub
    ' ============================================
    ' 获取IP地址标识符
    ' ============================================
    Private Function GetFlagStr(OffSet)
        Dim Flag
        Flag = 0
        Do While (True)
            Stream.Position = OffSet
            Flag = AscB(Stream.Read(1))
            If(Flag = 1 Or Flag = 2 ) Then
                Buf = Stream.Read(3)
                If (Flag = 2 ) Then
                    CountryFlag = 2
                    EndIPOff = OffSet - 4
                End If
                OffSet = AscB(MidB(Buf, 1, 1)) + (AscB(MidB(Buf, 2, 1))*256) + (AscB(MidB(Buf, 3, 1))*256*256)
            Else
                Exit Do
            End If
        Loop

        If (OffSet < 12 ) Then
            GetFlagStr = ""
        Else
            Stream.Position = OffSet
            GetFlagStr = GetStr()
        End If
    End Function
    ' ============================================
    ' 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
End Class

Set Wry = New TQQWry
Wry.QQWry("8.8.8.8")
WScript.Echo Wry.Country & "/" & Wry.LocalStr