/// <summary>
/// 刪除實體檔案
/// </summary>
protected virtual bool DeletePhysicalFileData()
{
if (fileFullName == "")
{
errState = AttFileErrState.NoInitialize;
return(false);
}
try
{
FileInfo fi = new FileInfo(fileFullName);
if (fi.Exists)
{
fi.Delete();
}
}
catch (Exception ex)
{
logger.Error("", ex);
errState = AttFileErrState.DeletePhysicalFileFailed;
return(false);
}
return(true);
}
protected virtual bool CheckExtAndExtractFileInfo(HttpPostedFile postedFile)
{
string pathDirFullName = GetAttRootDirectoryFullName() + filePath;
string uploadedFileName = Path.GetFileName(postedFile.FileName);
string ext = Path.GetExtension(postedFile.FileName);
if (ext.StartsWith("."))
{
ext = ext.Substring(1);
}
if (!IsFileExtValid(ext))
{
errState = AttFileErrState.InvalidFileExt;
return(false);
}
fileSavedName = string.Format("{0:yyyyMMdd_HHmmssfff}.{1}", DateTime.Now, ext);
fileSize = postedFile.ContentLength;
if (fileSize > 0)
{
fileSize = (int)Math.Round(fileSize / 1024f, MidpointRounding.AwayFromZero);
}
fileMIME = postedFile.ContentType;
fileFullName = pathDirFullName + "\\" + fileSavedName;
return(true);
}
public virtual bool DeleteData()
{
if (attId == Guid.Empty)
{
errState = AttFileErrState.AttIdIsRequired;
return(false);
}
if (fileFullName == "")
{
errState = AttFileErrState.NoInitialize;
return(false);
}
ArticlePublisherLogic artPub = new ArticlePublisherLogic(null);
bool result = artPub.DeleteAttachFileData(attId);
if (result)
{
if (!DeletePhysicalFileData())
{
logger.InfoFormat("can't delete physical file [{0}]", fileFullName);
}
}
else
{
errState = AttFileErrState.DeleteDataFailed;
}
return(result);
}
public static string GetErrMsgOfAttFileErrState(AttFileErrState errState)
{
string errMsg = "";
switch (errState)
{
case AttFileErrState.LoadDataFailed:
errMsg = "載入資料失敗";
break;
case AttFileErrState.LoadMultiLangDataFailed:
errMsg = "載入多語系資料失敗";
break;
case AttFileErrState.AttachFileIsRequired:
errMsg = "請上傳檔案";
break;
case AttFileErrState.InvalidFileExt:
errMsg = "不允許的檔案類型";
break;
case AttFileErrState.NoInitialize:
errMsg = "請先執行初始化";
break;
case AttFileErrState.DeleteDataFailed:
errMsg = "刪除附件失敗";
break;
case AttFileErrState.DeletePhysicalFileFailed:
errMsg = "刪除實體檔案失敗";
break;
case AttFileErrState.SavePhysicalFileFailed:
errMsg = "儲存實體檔案失敗";
break;
case AttFileErrState.InsertDataFailed:
errMsg = "新增附件資料失敗";
break;
case AttFileErrState.InsertMultiLangDataFailed:
errMsg = "新增附件多語系資料失敗";
break;
case AttFileErrState.UpdateDataFailed:
errMsg = "更新附件資料失敗";
break;
case AttFileErrState.UpdateMultiLangDataFailed:
errMsg = "更新附件多語系資料失敗";
break;
case AttFileErrState.AttIdIsRequired:
errMsg = "請提供 AttId";
break;
}
return(errMsg);
}
public static string GetErrMsgOfAttFileErrState(AttFileErrState errState)
{
string errMsg = "";
switch (errState)
{
case AttFileErrState.LoadDataFailed:
errMsg = Resources.Lang.ErrMsg_LoadDataFailed;
break;
case AttFileErrState.LoadMultiLangDataFailed:
errMsg = Resources.Lang.ErrMsg_LoadMultiLangDataFailed;
break;
case AttFileErrState.AttachFileIsRequired:
errMsg = Resources.Lang.ErrMsg_AttachFileIsRequired;
break;
case AttFileErrState.InvalidFileExt:
errMsg = Resources.Lang.ErrMsg_InvalidFileExt;
break;
case AttFileErrState.NoInitialize:
errMsg = Resources.Lang.ErrMsg_NoInitialize;
break;
case AttFileErrState.DeleteDataFailed:
errMsg = Resources.Lang.ErrMsg_DeleteAttachmentFailed;
break;
case AttFileErrState.DeletePhysicalFileFailed:
errMsg = Resources.Lang.ErrMsg_DeletePhysicalFileFailed;
break;
case AttFileErrState.SavePhysicalFileFailed:
errMsg = Resources.Lang.ErrMsg_SavePhysicalFileFailed;
break;
case AttFileErrState.InsertDataFailed:
errMsg = Resources.Lang.ErrMsg_InsertAttachmentFailed;
break;
case AttFileErrState.InsertMultiLangDataFailed:
errMsg = Resources.Lang.ErrMsg_InsertMultiLangAttachmentFailed;
break;
case AttFileErrState.UpdateDataFailed:
errMsg = Resources.Lang.ErrMsg_UpdateAttachmentFailed;
break;
case AttFileErrState.UpdateMultiLangDataFailed:
errMsg = Resources.Lang.ErrMsg_UpdateMultiLangAttachmentFailed;
break;
case AttFileErrState.AttIdIsRequired:
errMsg = Resources.Lang.ErrMsg_AttIdIsRequired;
break;
}
return(errMsg);
}
/// <summary>
/// 更新附件資料
/// </summary>
protected virtual bool UpdateData(string mdfAccount)
{
AttachFileParams param = new AttachFileParams()
{
AttId = attId,
FilePath = filePath,
FileSavedName = fileSavedName,
FileSize = fileSize,
SortNo = sortNo,
FileMIME = fileMIME,
DontDelete = dontDelete,
PostAccount = postAccount
};
ArticlePublisherLogic artPub = new ArticlePublisherLogic(null);
bool result = artPub.UpdateAttachFileData(param);
if (result)
{
//zh-TW
if (result && LangManager.IsEnableEditLangZHTW())
{
AttachFileMultiLangParams paramZhTw = new AttachFileMultiLangParams()
{
AttId = attId,
CultureName = LangManager.CultureNameZHTW,
AttSubject = attSubjectZhTw,
IsShowInLang = isShowInLangZhTw,
PostAccount = postAccount
};
result = artPub.UpdateAttachFileMultiLangData(paramZhTw);
}
//en
if (result && LangManager.IsEnableEditLangEN())
{
AttachFileMultiLangParams paramEn = new AttachFileMultiLangParams()
{
AttId = attId,
CultureName = LangManager.CultureNameEN,
AttSubject = attSubjectEn,
IsShowInLang = isShowInLangEn,
PostAccount = postAccount
};
result = artPub.UpdateAttachFileMultiLangData(paramEn);
}
if (!result)
{
errState = AttFileErrState.UpdateMultiLangDataFailed;
}
}
else
{
errState = AttFileErrState.UpdateDataFailed;
}
return(result);
}
/// <summary>
/// 儲存實體檔案(視條件縮圖)
/// </summary>
protected virtual bool SavePhysicalFileDataAndShrinkImage(HttpPostedFile postedFile)
{
try
{
string fileExt = Path.GetExtension(fileSavedName);
string contentType = "application/octet-stream";
ImageFormat contentImageFormat = ImageFormat.Jpeg;
switch (fileExt.ToLower())
{
case ".jpg":
case ".jpeg":
contentType = "image/jpeg";
contentImageFormat = ImageFormat.Jpeg;
break;
case ".bmp":
contentType = "image/bmp";
contentImageFormat = ImageFormat.Bmp;
break;
case ".gif":
contentType = "image/gif";
contentImageFormat = ImageFormat.Gif;
break;
case ".png":
contentType = "image/png";
contentImageFormat = ImageFormat.Png;
break;
case ".tiff":
case ".tif":
contentType = "image/tiff";
contentImageFormat = ImageFormat.Tiff;
break;
}
if (contentType == "application/octet-stream")
{
// save normal file
postedFile.SaveAs(fileFullName);
return(true);
}
//載入圖片,檢查是否需要縮圖
System.Drawing.Image img = System.Drawing.Image.FromStream(postedFile.InputStream);
int maxWidth = 1920;
int maxHeight = 1440;
bool isHeightMoreThanWidth = false;
bool needsToShrink = false;
if (img.Height > img.Width)
{
isHeightMoreThanWidth = true;
}
if (img.Width * img.Height > maxWidth * maxHeight)
{
needsToShrink = true;
}
if (needsToShrink)
{
//等比例縮圖
float widthRate, heightRate;
if (isHeightMoreThanWidth)
{
widthRate = img.Width / (float)maxHeight;
heightRate = img.Height / (float)maxWidth;
}
else
{
widthRate = img.Width / (float)maxWidth;
heightRate = img.Height / (float)maxHeight;
}
int fitWidth, fitHeight;
if (widthRate > heightRate)
{
fitWidth = Convert.ToInt32(img.Width / widthRate);
fitHeight = Convert.ToInt32(img.Height / widthRate);
}
else
{
fitWidth = Convert.ToInt32(img.Width / heightRate);
fitHeight = Convert.ToInt32(img.Height / heightRate);
}
System.Drawing.Image imgFit = new Bitmap(img, new Size(fitWidth, fitHeight));
//還原旋轉方向
// reference: https://forums.asp.net/t/2016582.aspx?Resize+script+is+rotating+image+sometimes+
if (new List <int>(img.PropertyIdList).Contains(0x112))
{
PropertyItem prop = img.GetPropertyItem(0x112);
if (prop.Type == 3 && prop.Len == 2)
{
UInt16 orientationExif = BitConverter.ToUInt16(prop.Value, 0);
switch (orientationExif)
{
case 8:
imgFit.RotateFlip(RotateFlipType.Rotate270FlipNone);
break;
case 3:
imgFit.RotateFlip(RotateFlipType.Rotate180FlipNone);
break;
case 6:
imgFit.RotateFlip(RotateFlipType.Rotate90FlipNone);
break;
}
}
}
imgFit.Save(fileFullName, contentImageFormat);
imgFit.Dispose();
}
else
{
//不用縮圖,直接存檔
postedFile.SaveAs(fileFullName);
}
}
catch (Exception ex)
{
logger.Error("", ex);
errState = AttFileErrState.SavePhysicalFileFailed;
return(false);
}
return(true);
}
protected virtual bool LoadData()
{
bool result = false;
if (attId != Guid.Empty)
{
ArticlePublisherLogic artPub = new ArticlePublisherLogic(null);
AttachFile att = artPub.GetAttachFileDataForBackend(attId);
if (att == null)
{
errState = AttFileErrState.LoadDataFailed;
return(false);
}
contextId = att.ArticleId;
filePath = att.FilePath;
fileSavedName = att.FileSavedName;
fileSize = att.FileSize;
sortNo = att.SortNo.Value;
fileMIME = att.FileMIME;
dontDelete = att.DontDelete;
fileFullName = string.Format("{0}{1}/{2}", GetAttRootDirectoryFullName(), filePath, fileSavedName);
postAccount = att.PostAccount;
postDate = att.PostDate.Value;
if (att.MdfDate.HasValue)
{
mdfAccount = att.MdfAccount;
mdfDate = att.MdfDate.Value;
}
//zh-TW
if (LangManager.IsEnableEditLangZHTW())
{
AttachFileMultiLang attZhTw = artPub.GetAttachFileMultiLangDataForBackend(attId, LangManager.CultureNameZHTW);
if (attZhTw == null)
{
errState = AttFileErrState.LoadMultiLangDataFailed;
return(false);
}
attSubjectZhTw = attZhTw.AttSubject;
isShowInLangZhTw = attZhTw.IsShowInLang;
readCountZhTw = attZhTw.ReadCount;
if (attZhTw.MdfDate.HasValue)
{
DateTime mdfDateZhTw = attZhTw.MdfDate.Value;
if (!mdfDate.HasValue || mdfDateZhTw > mdfDate.Value)
{
mdfAccount = attZhTw.MdfAccount;
mdfDate = mdfDateZhTw;
}
}
}
//en
if (LangManager.IsEnableEditLangEN())
{
AttachFileMultiLang attEn = artPub.GetAttachFileMultiLangDataForBackend(attId, LangManager.CultureNameEN);
if (attEn == null)
{
errState = AttFileErrState.LoadMultiLangDataFailed;
return(false);
}
attSubjectEn = attEn.AttSubject;
isShowInLangEn = attEn.IsShowInLang;
readCountEn = attEn.ReadCount;
if (attEn.MdfDate.HasValue)
{
DateTime mdfDateEn = attEn.MdfDate.Value;
if (!mdfDate.HasValue || mdfDateEn > mdfDate.Value)
{
mdfAccount = attEn.MdfAccount;
mdfDate = mdfDateEn;
}
}
}
result = true;
}
else if (contextId != null)
{
// new one
sortNo = GetNextSortNo();
result = true;
}
return(result);
}
public virtual bool SaveData(HttpPostedFile postedFile, string mdfAccount)
{
bool hasFile = (postedFile != null && postedFile.ContentLength > 0);
filePath = GetDirectoryName();
string pathDirFullName = GetAttRootDirectoryFullName() + filePath;
DirectoryInfo diPathDir = new DirectoryInfo(pathDirFullName);
if (!diPathDir.Exists)
{
diPathDir.Create();
}
if (attId != Guid.Empty)
{
// update
if (hasFile)
{
// delete old file
if (!DeletePhysicalFileData())
{
return(false);
}
if (!CheckExtAndExtractFileInfo(postedFile))
{
return(false);
}
// save to disk
//儲存實體檔案(視條件縮圖)
if (!SavePhysicalFileDataAndShrinkImage(postedFile))
{
return(false);
}
}
// save to db
if (!UpdateData(mdfAccount))
{
return(false);
}
}
else if (contextId.HasValue)
{
// add
if (!hasFile)
{
errState = AttFileErrState.AttachFileIsRequired;
return(false);
}
if (!CheckExtAndExtractFileInfo(postedFile))
{
return(false);
}
// save to disk
//儲存實體檔案(視條件縮圖)
if (!SavePhysicalFileDataAndShrinkImage(postedFile))
{
return(false);
}
// save to db
if (!InsertData(mdfAccount))
{
return(false);
}
}
return(true);
}
