修改referer实现下载文件

发布时间:2020-08-04编辑:脚本学堂
本文分享一个修改referer头信息实现下载文件的例子,有关referer的实例代码,感兴趣的朋友参考下。

如果让Http对象作全局变量,那么onreadystatechange只会在第一次执行时触发,以后都不会触发这个事件了。
只好在每次Down文件时重新创建一个XmlHttp对象。

GetFile.wsc
 

复制代码 代码示例:
<?xml version="1.0" encoding="gb2312"?> 
<component> 
  <?component error="true" debug="true"?> 
  <public> 
    <property name="Referer" /> 
    <property name="Content" /> 
    <property name="Data" /> 
    <method name="GetFile"> 
      <parameter name="URL" /> 
    </method> 
    <method name="Save"> 
      <parameter name="Path" /> 
    </method> 
  </public> 
  <implements type="Behavior"> 
    <event name="ondowncomplete" /> 
  </implements> 
  <object progid="Microsoft.XmlHttp" id="Http" /> 
  <script language="javascript"> 
  <![CDATA[ 
var Referer, Content, Data; 
var Stream = new ActiveXObject("ADODB.Stream"); 
Stream.Type = 1; 
function onReady() 

  if(Http.readyState == 4) 
  { 
    Content = Http.responseText; 
    Data = Http.responseBody; 
    fireEvent("ondowncomplete"); 
    Http.abort(); 
  } 

function GetFile(URL) 

  Http.onreadystatechange = onReady; 
  Http.open("GET", URL, true, "", ""); 
  if(Referer) Http.setRequestHeader("Referer", Referer); 
  Http.send(null); 

function Save(Path) 

  Stream.Open(); 
  Stream.Write(Data); 
  Stream.SaveToFile(Path, 2); 
  Stream.Close(); 

  ]]> 
  </script> 
</component> 

test.hta
 

复制代码 代码示例:
<html><head>
<script> 
var Down = document.createElement("Comment"); 
document.lastChild.lastChild.appendChild(Down); 
Down.style.behavior="url(GetFile.wsc)"; 
Down.ondowncomplete = function() 

  //document.write(Down.Content); 
  Down.Save(SaveTo.value); 
  Go.disabled=0; 
  alert("OK"); 

function GetFile() 

  Go.disabled = 1; 
  Down.Referer = Referer.value; 
  Down.GetFile(URL.value); 

</script> 
</head><body> 
URL: <input id="URL" size="50" value="http://www.jb200.com/SendFile.aspx?FileID=15531"><br> 
Referer: <input name="Referer" size="40" value="http://www.jb200.com"><br> 
SaveTo: <input name="SaveTo" size="40" value="D:Test.gif"><br> 
<input id="Go" type=button value="下载" onclick="GetFile()"> 
</body>
</html>