自动采集程序

最近在做一个音乐站,音乐文件嘛。。。一般是从网上收集。。so。。写了一段采集程序。 

代码如下:

<% 
  On Error Resume Next 
  Const uploadPath = "/uploads/" '文件存放路径 
  Const allowFileExt = "jpg,wma,swf,gif" '允许被采集的文件类型 
  'Const allowFileSize = "200" 
  Function getFile(url) 
    If url = "" Then 
      Exit Function 
    Else 
      url = Trim(url) 
    End If 

    '获取文件 
    fileExt = Lcase(Mid(url,Instrrev(url, ".")+1)) '文件类型 
    fileName = Lcase(Mid(url,Instrrev(url, "/")+1,Instrrev(url, ".")-Instrrev(url, "/")-1)) '无文件类型的文件名 
    newFilePath = getNow("Date") & "_" & Replace(FormatDateTime(Now(),3),":","") & "_" & cleanFileName(fileName) & "." & fileExt 

    if Instr(","&Lcase(allowFileExt)&",",","&fileExt&",") = 0 Then 
      getFile = "文件类型不允许" 
      Exit Function 
    End If 

    Set xmlhttp = Server.CreateObject("Microsoft.XMLHTTP") 
    xmlhttp.open "get",url,false 
    xmlhttp.send 
    'While xmlhttp.readyState <> 4 
    ' xmlhttp.waitForResponse 1000 
    'Wend 
    If xmlhttp.status <> 200 Then 
      getFile="获取文件出错" 
      Exit Function 
    Else 
      Set folder=Server.CreateObject("Scripting.FileSystemObject") 
      Dim folderName 
      folderName = getNow("Year")&getNow("Month") '文件夹 
      If folder.FolderExists(Server.MapPath(uploadPath))=False Then 
        folder.CreateFolder Server.MapPath(uploadPath) 
      End If 
      If folder.FolderExists(Server.MapPath(uploadPath & folderName))=False Then 
        folder.CreateFolder Server.MapPath(uploadPath & folderName) 
      End If 
      Set folder=Nothing 

      file=xmlhttp.ResponseBody 
      If lenb(file) > allowFileSize Then 
        getFile = "文件太大,不能保存!" 
        Exit Function 
      Else 
        Set objAdostream=Server.Createobject("ADODB.Str"&"eam") 
        objAdostream.Open() 
        objAdostream.Type=1 
        objAdostream.Write(file) 
        objAdostream.SaveToFile(Server.Mappath(uploadPath & folderName &"/" & newFilePath)) 
        objAdostream.SetEOS 
        Set objAdostream=Nothing 
        getFile= "<a href="""&uploadPath & folderName &"/" & newFilePath&""" target=""_balnk"">采集成功</a>" 
      End If 
    End If 
    Set xmlhttp=Nothing 
  End Function 
%> 
<script runat="server" language="jscript"> 
function cleanFileName(str){ 
 str = str.replace(/[^_\.a-zA-Z\d]/ig,""); 
 str = str.replace(/^[\/\.]+/,""); 
 return str; 
} 
function getNow(n) 
{ 
  d = new Date(); 
  switch (n) 
  { 
    case "Year": 
      return d.getYear(); 
    case "Month": 
     return (d.getMonth() + 1); 
    case "Date": 
      return d.getDate(); 
  } 

} 
</script> 
<%if request("do")="getfile" and request("file") <> "" then 
response.write(getFile(request("file"))) 
else%> 
<form id="gform" method="post" action="?do=getfile" style="display: inline"> 
 <input name="file" type="input" style="font-size:12px;" size="40" value="http://blog.xiaobin.net/uploads/200512/08_093616_01.gif">  
 <input type="Submit" name="Submit" value="采集 " class="button"> 
</form> 
<%end if%>

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