asp打包类

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<%
On Error Resume Next
Dim r
Set r = New Rar

r.Add Server.MapPath("a.gIf")
r.Add Server.MapPath("a.txt")
r.Add Server.MapPath("test")
r.Add Server.MapPath("file.asp")
r.packname = Server.MapPath("xxx.dat")
r.Pack
r.rootpath = Server.MapPath("xxx")
r.packname = Server.MapPath("xxx.dat")
r.UnPack

Response.Write(Err.Description)
Set r = Nothing
%>
<script Language="vbscript" Runat="server">
''-----------------------------------------------------
'' 描述: Asp打包类
'' 作者: 小灰(quxiaohui_0@163.com)
'' 链接: http://asp2004.net http://blog.csdn.net/iuhxq http://bbs.asp2004.net
'' 版本: 1.0 Beta
'' 版权: 本作品可免费使用，但是请勿移除版权信息
''-----------------------------------------------------
Class Rar
Dim files,packname,s,s1,s2,rootpath,fso,f,buf
Private Sub Class_Initialize
Randomize
Dim ranNum
ranNum = Int(90000 * Rnd) + 10000
packname = Year(Now)&Month(Now)&Day(Now)&Hour(Now)&Minute(Now)&Second(Now)&ranNum&".asp2004"

rootpath = Server.MapPath("./")

Set files = server.CreateObject("Scripting.Dictionary")
Set fso = Server.CreateObject("Scripting.FileSystemObject")

Set s = server.CreateObject("ADODB.Stream"):s.Open:s.Type = 1
Set s1 = server.CreateObject("ADODB.Stream"):s1.Open:s1.Type = 1
Set s2 = server.CreateObject("ADODB.Stream"):s2.Open:s2.Type = 2
End Sub

Private Sub Class_Terminate
s.Close:Set s = Nothing
s1.Close:Set s1 = Nothing
s2.Close:Set s2 = Nothing

Set fso = Nothing
End Sub

Public Sub Add(obj)
If fso.FileExists(obj) Then
Set f = fso.GetFile(obj)
files.Add obj,f.Size
ElseIf fso.FolderExists(obj) Then
files.Add obj,-1
Set f = fso.GetFolder(obj)
Set fc = f.Files
For Each f1 in fc
Add(LCase(f1.Path))
Next
End If
End Sub

Public Sub Pack
Dim str
a = files.Keys
b = files.Items
for i=0 to files.count-1
If b(i)>=0 Then
s.LoadFromFile(a(i))
buf = s.Read
If Not IsNull(buf) Then s1.Write(buf)
End If
str = str & b(i)&">"&Replace(a(i),rootpath,"")&vbCrLf
next
str = CStr(Right("000000000"&len(str),10)) & str
buf = TextToStream(str)
s.Position = 0
s.Write buf
s1.Position = 0
s.Write s1.Read
s.SetEOS
s.SaveToFile(packname)
End Sub

Public Sub UnPack

If Not fso.FolderExists(rootpath) Then
fso.CreateFolder(rootpath)
End If
Dim size
''转换文件大小
s.LoadFromFile(packname)
size = CInt(StreamToText(s.Read(10)))
str = StreamToText(s.Read(size))
arr = Split(str,vbCrLf)

for i=0 to Ubound(arr)-1
arrFile = Split(arr(i),">")
If arrFile(0) < 0 Then
If Not fso.FolderExists(rootpath&arrFile(1)) Then
fso.CreateFolder(rootpath&arrFile(1))
End If
ElseIf arrFile(0) >= 0 Then
If fso.FileExists(rootpath&arrFile(1)) Then
fso.DeleteFile(rootpath&arrFile(1))
End If
s1.Position = 0
buf = s.Read(arrFile(0))
If Not IsNull(buf) Then s1.Write(buf)
s1.SetEOS
s1.SaveToFile(rootpath&arrFile(1))
End If
Next
End Sub

Public Function StreamToText(stream)
If IsNull(stream) Then
StreamToText = ""
Else
Set sm = server.CreateObject("ADODB.Stream"):sm.Open:sm.Type = 1
sm.Writ