private string GetUploadHandlerUrl()
{
string url = "";
if (System.Configuration.ConfigurationManager.AppSettings["FS_Distributed"] == "True")
{
if (HttpContext.Current.User != null && HttpContext.Current.User.Identity != null)
{
string sql = "select HttpUrl from FsServer join UserFileServer on UserName='******' and FsServer.ServerName= UserFileServer.ServerName";
sql = string.Format(sql, HttpContext.Current.User.Identity.Name);
SQLHelper sqlHelper = SQLHelper.CreateSqlHelper("FileStore");
object result = sqlHelper.ExecuteScalar(sql);
url = result == null ? "" : result.ToString();
}
}
else
{
string src = Request.QueryString["src"];
MasterServiceFO masterFO = new MasterServiceFO();
var rootFolder = masterFO.GetAvailableRootFolder(src);
url = rootFolder.FsServer.HttpUrl;
}
if (string.IsNullOrEmpty(url))
{
url = System.Configuration.ConfigurationManager.AppSettings["FS_MasterServerUrl"];
}
url = url.Split(new string[] { "Services" }, StringSplitOptions.RemoveEmptyEntries).First();
return(string.Format("{0}SlUpload/FileUploadHandler.ashx", url));
}
protected void Page_Load(object sender, EventArgs e)
{
string fileIds = GetFileIds();
fileIds = Server.UrlDecode(fileIds);
if (string.IsNullOrEmpty(fileIds))
{
Response.Write("需要参数FileId");
return;
}
if (System.Configuration.ConfigurationManager.AppSettings["FS_Distributed"] != "True")
{
#region 非分布式文件系统，需要跳转到文件所在的服务器下载文件
string fID = fileIds.Split(',')[0].Split('_')[0];
SQLHelper sqlHelper = SQLHelper.CreateSqlHelper("FileStore");
object src = sqlHelper.ExecuteScalar(string.Format("select Src from FsFile where ID='{0}'", fID));
if (src == null)
{
return;
}
MasterServiceFO masterFO = new MasterServiceFO();
string url = masterFO.GetAvailableRootFolder(src.ToString()).FsServer.HttpUrl;
if (string.IsNullOrEmpty(url))
{
url = System.Configuration.ConfigurationManager.AppSettings["FS_MasterServerUrl"];
}
url = url.Split(new string[] { "Services" }, StringSplitOptions.RemoveEmptyEntries).First();
Uri u = new Uri(url);
//if (!Request.Url.OriginalString.StartsWith(url))
if (Request.Url.Host != u.Host || !Request.Url.LocalPath.StartsWith(u.LocalPath))
{
url = string.Format("{0}Download.aspx", url);
url += Request.Url.Query;
Response.Redirect(url);
return;
}
#endregion
}
else
{
#region 分布式的文件系统，需要跳转到个人使用的文件服务器
string url = System.Configuration.ConfigurationManager.AppSettings["FS_MasterServerUrl"];
if (HttpContext.Current.User != null && HttpContext.Current.User.Identity != null)
{
string sql = "select HttpUrl from FsServer join UserFileServer on UserName='******' and FsServer.ServerName= UserFileServer.ServerName";
sql = string.Format(sql, HttpContext.Current.User.Identity.Name);
SQLHelper sqlHelper = SQLHelper.CreateSqlHelper("FileStore");
object result = sqlHelper.ExecuteScalar(sql);
if (result != null)
{
url = result.ToString();
}
}
url = url.Split(new string[] { "Services" }, StringSplitOptions.RemoveEmptyEntries).First();
Uri u = new Uri(url);
//if (!Request.Url.OriginalString.StartsWith(url))
#region 由于使用了Apache的重定向功能，会跟这段代码冲突，引发无线循环，因此取消这段代码(本系统暂时不能启用分布式文件部署方案) edit by bob.peng 20150304
//if (Request.Url.Host != u.Host || !Request.Url.LocalPath.StartsWith(u.LocalPath))
//{
// url = string.Format("{0}Download.aspx", url);
// url += Request.Url.Query;
// Response.Redirect(url);
// return;
//}
#endregion
#endregion
}
downloadServer.ValidateFileSize(fileIds);
string realFileName = downloadServer.GetResultFileName(fileIds);
realFileName.Replace(" ", "%20");
//long fileSize = bytes.Length;
Response.ContentType = "application/octet-stream";
Response.ContentType = "application/octet-stream ; Charset=UTF8";
Response.CacheControl = "public";
Response.AddHeader("Content-Disposition", "attachment;filename=\"" + realFileName + "\"");
//Response.AddHeader("Content-Length", fileSize.ToString());
Response.AddHeader("Content-Transfer-Encoding", "binary");
downloadServer.ExportFile(fileIds);
Response.End();
HttpContext.Current.ApplicationInstance.CompleteRequest();
}
