protected static bool OutputFileByID(HttpContext context, string fileID, string fileName, string fileType, OutputFileMode mode)
{
PhysicalFile file = FileManager.GetFile(fileID);
if (file == null)
return false;
return OutputFile(context, file.PhysicalFilePath, fileName, fileType, mode);
}
protected static bool OutputTempFile(HttpContext context, int userID, int tempUploadFileID, OutputFileMode mode)
{
TempUploadFile tempFile = FileManager.GetUserTempUploadFile(userID, tempUploadFileID);
if (tempFile == null)
return false;
int index = tempFile.FileName.LastIndexOf('.');
string fileType = tempFile.FileName.Substring(index, tempFile.FileName.Length - index);
return OutputFile(context, tempFile.PhysicalFilePath, tempFile.FileName, fileType, mode);
}
public override bool Downloading(System.Web.HttpContext context)
{
string id = context.Request.QueryString["id"];
int photoID = -1;
if (StringUtil.TryParse(id, out photoID))
{
Photo photo = AlbumBO.Instance.GetPhoto(photoID);
if (photo != null)
{
//using (ErrorScope es = new ErrorScope())
//{
bool canVisit = AlbumBO.Instance.CanVisitAlbum(User.Current, photo.Album);
if (canVisit == false)
{
return(false);
}
//}
string fileName = photo.Name;
string contentType = string.Empty;
if (StringUtil.EndsWithIgnoreCase(photo.Name, photo.FileType) == false)
{
fileName += photo.FileType;
}
OutputFileMode outputFileMode = OutputFileMode.Inline;
string mode = context.Request.QueryString["mode"];
if (mode == "download")
{
outputFileMode = OutputFileMode.Attachment;
}
OutputFileByID(context, photo.FileID, fileName, photo.FileType, outputFileMode);
return(true);
}
}
return(false);
}
protected static bool OutputFile(HttpContext context, string filePath, string fileName, string fileType, OutputFileMode mode)
{
if (context.Items.Contains("need-compress"))
{
context.Items.Remove("need-compress");
}
string contentType = GetContentType(fileType);
FileInfo fileInfo = new FileInfo(filePath);
#region 如果包含If-Modified-Since信息，检查文件是否从未修改，如果是，直接输出304头，无需重复下载
try
{
if (context.Request.Headers["If-Modified-Since"] != null)// && DateTime.Parse(context.Request.Headers["If-Modified-Since"].Split(';')[0]) > lastModified.AddSeconds(-1))
{
DateTime ifModifiedSince;
if (DateTime.TryParse(context.Request.Headers["If-Modified-Since"].Split(';')[0], out ifModifiedSince))
{
DateTime lastModified = fileInfo.LastWriteTime; //File.GetLastWriteTime(filePath);
if (ifModifiedSince > lastModified.AddSeconds(-1))
{
context.Response.StatusCode = 304;
context.Response.StatusDescription = "Not Modified";
return(false);
}
}
}
}
catch { }
#endregion
#region 输出HTTP头信息
context.Response.Clear();
context.Response.ClearHeaders();
context.Response.Buffer = false;
context.Response.ContentType = contentType;
if (context.Request.Headers["Accept-Charset"] == null)
{
fileName = HttpUtility.UrlEncode(Encoding.UTF8.GetBytes(fileName)).Replace("+", "%20");
}
if (mode == OutputFileMode.Attachment)
{
context.Response.AppendHeader("Content-Disposition", "attachment;filename=" + fileName);
}
else
{
context.Response.AppendHeader("Content-Disposition", "inline;filename=" + fileName);
}
#endregion
//context.Response.AppendHeader("Content-Length", fileInfo.Length.ToString());
//context.Response.WriteFile(filePath);
if (fileInfo.Exists)
{
context.Response.TransmitFile(filePath);
}
else
{
context.Response.TransmitFile(Globals.GetPath(SystemDirecotry.Assets_Images, "notfound.gif"));
}
// 结束文件下载
context.Response.End();
return(true);
}
protected static bool OutputFileByID(HttpContext context, string fileID, string fileName, string fileType, OutputFileMode mode)
{
PhysicalFile file = FileManager.GetFile(fileID);
if (file == null)
{
return(false);
}
return(OutputFile(context, file.PhysicalFilePath, fileName, fileType, mode));
}
protected static bool OutputTempFile(HttpContext context, int userID, int tempUploadFileID, OutputFileMode mode)
{
TempUploadFile tempFile = FileManager.GetUserTempUploadFile(userID, tempUploadFileID);
if (tempFile == null)
{
return(false);
}
int index = tempFile.FileName.LastIndexOf('.');
string fileType = tempFile.FileName.Substring(index, tempFile.FileName.Length - index);
return(OutputFile(context, tempFile.PhysicalFilePath, tempFile.FileName, fileType, mode));
}
public override bool Downloading(HttpContext context)
{
if (context.Request.QueryString["mode"] != null)
{
if (StringUtil.EqualsIgnoreCase(context.Request.QueryString["mode"], "image"))
{
outputMode = OutputFileMode.Inline;
}
else
{
outputMode = OutputFileMode.Attachment;
if (StringUtil.EqualsIgnoreCase(context.Request.QueryString["mode"], "media"))
isMedia = true;
}
}
else
{
outputMode = OutputFileMode.Attachment;
}
operatorUser = User.Current;
userID = operatorUser.UserID; //UserBO.Instance.GetCurrentUserID();
//====处理3.0的附件============================================
if (context.Request.QueryString["v"] == "3")
{
ProcessV30(context);
return true;
}
//===================================================
//预览或编辑器里显示 从网络硬盘里插入的附件
if (context.Request.QueryString["diskfileID"] != null)
{
ProcessDiskFile(context);
return true;
}
if (context.Request.QueryString["ID"] != null)
{
try
{
attachmentID = int.Parse(context.Request.QueryString["ID"].Trim());
}
catch
{
Context.ThrowError<InvalidParamError>(new InvalidParamError("ID"));
return false;
//Bbs3Globals.ShowError("error", "参数错误!", 0);
}
}
else
{
Context.ThrowError<InvalidParamError>(new InvalidParamError("ID"));
return false;
//Bbs3Globals.ShowError("error", "参数错误!", 0);
}
//附件ID小于0，表示这是一个发帖时使用的临时文件
if (attachmentID < 0)
{
if (isMedia)
{
TempUploadFile tempFile = FileManager.GetUserTempUploadFile(userID, 0 - attachmentID);
if (tempFile == null)
return false;
int index = tempFile.FileName.LastIndexOf('.');
string fileType = tempFile.FileName.Substring(index, tempFile.FileName.Length - index);
ProcessMedia(context, fileType);
}
else if (false == OutputTempFile(context, userID, 0 - attachmentID, outputMode))
{
ShowErrorMessage(context, "文件不存在,可能长时间没有发表导致被系统清理！", "临时文件不存在.gif");
}
}
//附件ID大于0，表示这是一个真实的附件
else
{
attachment = PostBOV5.Instance.GetAttachment(attachmentID, outputMode == OutputFileMode.Attachment);
if (attachment == null)
{
if (isMedia)
return false;
ShowErrorMessage(context, "该附件不存在,可能被移动或被删除！", "文件不存在.gif");
return false;
}
if (isMedia)
{
ProcessMedia(context, "." + attachment.FileType);
}
string fileID = attachment.FileID;
//处理3.0的 #attach:id#
if (context.Request.QueryString["m"] != null)
{
if (context.Request.QueryString["m"].ToLower() == "i" && MaxLabs.bbsMax.Ubb.PostUbbParserV5.isImage(attachment.FileType))
{
outputMode = OutputFileMode.Inline;
}
}
switch (Action(context))
{
//case "buy":
// ProcessBuy(context,fileID,null);
// break;
default:
ProcessDownload(context, fileID);
//context.Response.End();
break;
}
}
return true;
}
protected static bool OutputFile(HttpContext context, string filePath, string fileName, string fileType, OutputFileMode mode)
{
if (context.Items.Contains("need-compress"))
context.Items.Remove("need-compress");
string contentType = GetContentType(fileType);
FileInfo fileInfo = new FileInfo(filePath);
#region 如果包含If-Modified-Since信息，检查文件是否从未修改，如果是，直接输出304头，无需重复下载
try
{
if (context.Request.Headers["If-Modified-Since"] != null)// && DateTime.Parse(context.Request.Headers["If-Modified-Since"].Split(';')[0]) > lastModified.AddSeconds(-1))
{
DateTime ifModifiedSince;
if (DateTime.TryParse(context.Request.Headers["If-Modified-Since"].Split(';')[0], out ifModifiedSince))
{
DateTime lastModified = fileInfo.LastWriteTime; //File.GetLastWriteTime(filePath);
if (ifModifiedSince > lastModified.AddSeconds(-1))
{
context.Response.StatusCode = 304;
context.Response.StatusDescription = "Not Modified";
return false;
}
}
}
}
catch { }
#endregion
#region 输出HTTP头信息
context.Response.Clear();
context.Response.ClearHeaders();
context.Response.Buffer = false;
context.Response.ContentType = contentType;
if (context.Request.Headers["Accept-Charset"] == null)
fileName = HttpUtility.UrlEncode(Encoding.UTF8.GetBytes(fileName)).Replace("+", "%20");
if (mode == OutputFileMode.Attachment)
{
context.Response.AppendHeader("Content-Disposition", "attachment;filename=" + fileName);
}
else
{
context.Response.AppendHeader("Content-Disposition", "inline;filename=" + fileName);
}
#endregion
//context.Response.AppendHeader("Content-Length", fileInfo.Length.ToString());
//context.Response.WriteFile(filePath);
if (fileInfo.Exists)
context.Response.TransmitFile(filePath);
else
context.Response.TransmitFile(Globals.GetPath(SystemDirecotry.Assets_Images, "notfound.gif"));
// 结束文件下载
context.Response.End();
return true;
}
public override bool Downloading(HttpContext context)
{
if (context.Request.QueryString["mode"] != null)
{
if (StringUtil.EqualsIgnoreCase(context.Request.QueryString["mode"], "image"))
{
outputMode = OutputFileMode.Inline;
}
else
{
outputMode = OutputFileMode.Attachment;
if (StringUtil.EqualsIgnoreCase(context.Request.QueryString["mode"], "media"))
{
isMedia = true;
}
}
}
else
{
outputMode = OutputFileMode.Attachment;
}
operatorUser = User.Current;
userID = operatorUser.UserID; //UserBO.Instance.GetCurrentUserID();
//====处理3.0的附件============================================
if (context.Request.QueryString["v"] == "3")
{
ProcessV30(context);
return(true);
}
//===================================================
//预览或编辑器里显示 从网络硬盘里插入的附件
if (context.Request.QueryString["diskfileID"] != null)
{
ProcessDiskFile(context);
return(true);
}
if (context.Request.QueryString["ID"] != null)
{
try
{
attachmentID = int.Parse(context.Request.QueryString["ID"].Trim());
}
catch
{
Context.ThrowError <InvalidParamError>(new InvalidParamError("ID"));
return(false);
//Bbs3Globals.ShowError("error", "参数错误!", 0);
}
}
else
{
Context.ThrowError <InvalidParamError>(new InvalidParamError("ID"));
return(false);
//Bbs3Globals.ShowError("error", "参数错误!", 0);
}
//附件ID小于0，表示这是一个发帖时使用的临时文件
if (attachmentID < 0)
{
if (isMedia)
{
TempUploadFile tempFile = FileManager.GetUserTempUploadFile(userID, 0 - attachmentID);
if (tempFile == null)
{
return(false);
}
int index = tempFile.FileName.LastIndexOf('.');
string fileType = tempFile.FileName.Substring(index, tempFile.FileName.Length - index);
ProcessMedia(context, fileType);
}
else if (false == OutputTempFile(context, userID, 0 - attachmentID, outputMode))
{
ShowErrorMessage(context, "文件不存在,可能长时间没有发表导致被系统清理！", "临时文件不存在.gif");
}
}
//附件ID大于0，表示这是一个真实的附件
else
{
attachment = PostBOV5.Instance.GetAttachment(attachmentID, outputMode == OutputFileMode.Attachment);
if (attachment == null)
{
if (isMedia)
{
return(false);
}
ShowErrorMessage(context, "该附件不存在,可能被移动或被删除！", "文件不存在.gif");
return(false);
}
if (isMedia)
{
ProcessMedia(context, "." + attachment.FileType);
}
string fileID = attachment.FileID;
//处理3.0的 #attach:id#
if (context.Request.QueryString["m"] != null)
{
if (context.Request.QueryString["m"].ToLower() == "i" && MaxLabs.bbsMax.Ubb.PostUbbParserV5.isImage(attachment.FileType))
{
outputMode = OutputFileMode.Inline;
}
}
switch (Action(context))
{
//case "buy":
// ProcessBuy(context,fileID,null);
// break;
default:
ProcessDownload(context, fileID);
//context.Response.End();
break;
}
}
return(true);
}
