Web代理(Asp版)(2)

        //自动判断编码开始
        var charresult = http_request.ResponseText.match(/CharSet=(\S+)"/i);
        if (charresult != null){
        var Cset = charresult[1];
        }else{Cset = "utf-8"}
        //自动判断编码结束
        codedtext = bytesToBSTR(http_request.Responsebody,Cset);
        }else{
        codedtext = "Erro";
        }
        //替换超连接
        codedtext = codedtext.replace(/href="\/?/ig,"href=\""+url+"/");
        codedtext = codedtext.replace(/(<a.*href=")/ig,"$1servergate.asp?url=");

    return(codedtext);
}

function bytesToBSTR(body,Cset){
    var objstream;
    objstream = Server.CreateObject("Adodb.Stream");
    objstream.Type = 1;
    objstream.Mode = 3;
    objstream.Open();
    objstream.Write(body);
    objstream.Position = 0;
    objstream.Type = 2;
    objstream.Charset = Cset;
    bytesToBSTR = objstream.Readtext;
    objstream.Close;
    return(bytesToBSTR);
}

function SaveRemoteFile(LocalFileName,RemoteFileUrl){
    var Retrieval,Ads;
    Retrieval = Server.CreateObject("Microsoft.XMLHTTP");
    Retrieval.Open("GET",RemoteFileUrl,false);
    Retrieval.Send(null);
    if (Retrieval.ReadyState == 4){
    Ads = Server.CreateObject("Adodb.Stream");
    Ads.Type = 1;
    Ads.Open();
    Ads.Write(Retrieval.Responsebody);
    Ads.SaveToFile(Server.MapPath(LocalFileName),2);
    Ads.Cancel;
    Ads.Close;
    }
}
//SaveRemoteFile("aa.gif","http://www.baidu.com/img/logo.gif");
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