/// <summary>
/// Deletes the file binary from the file system.
/// </summary>
/// <param name="attachmentId">Attachment ID</param>
/// <param name="name">Returning the attachment name</param>
protected bool DeleteFromFileSystem(int attachmentId, ref string name)
{
// Delete the file in file system
AttachmentInfo ai = AttachmentInfoProvider.GetAttachmentInfo(attachmentId, false);
if (ai != null)
{
name = ai.AttachmentName;
// Ensure the binary column first (check if exists)
DataSet ds = AttachmentInfoProvider.GetAttachments("AttachmentID = " + attachmentId, null, true, 0, "CASE WHEN AttachmentBinary IS NULL THEN 0 ELSE 1 END AS HasBinary");
if (!DataHelper.DataSourceIsEmpty(ds))
{
bool hasBinary = ValidationHelper.GetBoolean(ds.Tables[0].Rows[0][0], false);
if (!hasBinary)
{
// Copy the binary data to database
ai.AttachmentBinary = AttachmentInfoProvider.GetFile(ai, GetSiteName(ai.AttachmentSiteID));
ai.Generalized.UpdateData();
}
// Delete the file from the disk
AttachmentInfoProvider.DeleteFile(ai.AttachmentGUID, GetSiteName(ai.AttachmentSiteID), true, false);
return(true);
}
}
return(false);
}
/// <summary>
/// Copies the file binary to the database.
/// </summary>
/// <param name="attachmentId">Attachment ID</param>
/// <param name="name">Returning the attachment name</param>
protected bool CopyToDatabase(int attachmentId, ref string name)
{
// Copy the file from file system to the database
AttachmentInfo ai = AttachmentInfoProvider.GetAttachmentInfo(attachmentId, true);
if (ai != null)
{
name = ai.AttachmentName;
if (ai.AttachmentBinary == null)
{
// Ensure the binary data
ai.AttachmentBinary = AttachmentInfoProvider.GetFile(ai, GetSiteName(ai.AttachmentSiteID));
ai.Generalized.UpdateData();
return true;
}
}
return false;
}
/// <summary>
/// Initializes common properties used for processing image.
/// </summary>
private void baseImageEditor_InitializeProperties()
{
var currentUser = MembershipContext.AuthenticatedUser;
// Process attachment
switch (baseImageEditor.ImageType)
{
// Process physical file
case ImageHelper.ImageTypeEnum.PhysicalFile:
{
if (!String.IsNullOrEmpty(filePath))
{
if ((currentUser != null) && currentUser.IsGlobalAdministrator)
{
try
{
// Load the file from disk
string physicalPath = Server.MapPath(filePath);
byte[] data = File.ReadAllBytes(physicalPath);
baseImageEditor.ImgHelper = new ImageHelper(data);
}
catch
{
baseImageEditor.LoadingFailed = true;
baseImageEditor.ShowError(GetString("img.errors.loading"));
}
}
else
{
baseImageEditor.LoadingFailed = true;
baseImageEditor.ShowError(GetString("img.errors.rights"));
}
}
else
{
baseImageEditor.LoadingFailed = true;
baseImageEditor.ShowError(GetString("img.errors.loading"));
}
}
break;
// Process metafile
case ImageHelper.ImageTypeEnum.Metafile:
{
// Get metafile
mf = MetaFileInfoProvider.GetMetaFileInfoWithoutBinary(metafileGuid, CurrentSiteName, true);
// If file is not null and current user is global administrator then set image
if (mf != null)
{
if (UserInfoProvider.IsAuthorizedPerObject(mf.MetaFileObjectType, mf.MetaFileObjectID, PermissionsEnum.Modify, CurrentSiteName, MembershipContext.AuthenticatedUser))
{
// Ensure metafile binary data
mf.MetaFileBinary = MetaFileInfoProvider.GetFile(mf, CurrentSiteName);
if (mf.MetaFileBinary != null)
{
baseImageEditor.ImgHelper = new ImageHelper(mf.MetaFileBinary);
}
else
{
baseImageEditor.LoadingFailed = true;
baseImageEditor.ShowError(GetString("img.errors.loading"));
}
}
else
{
baseImageEditor.LoadingFailed = true;
baseImageEditor.ShowError(GetString("img.errors.rights"));
}
}
else
{
baseImageEditor.LoadingFailed = true;
baseImageEditor.ShowError(GetString("img.errors.loading"));
}
}
break;
default:
{
baseImageEditor.Tree = new TreeProvider(currentUser);
// If using workflow then get versioned attachment
if (VersionHistoryID != 0)
{
// Get the versioned attachment
AttachmentHistoryInfo attachmentVersion = VersionManager.GetAttachmentVersion(VersionHistoryID, attachmentGuid);
if (attachmentVersion != null)
{
// Create new attachment object
ai = new AttachmentInfo(attachmentVersion.Generalized.DataClass);
if (ai != null)
{
AttachmentHistoryID = attachmentVersion.AttachmentHistoryID;
ai.AttachmentVersionHistoryID = VersionHistoryID;
}
}
}
// Else get file without binary data
else
{
ai = AttachmentInfoProvider.GetAttachmentInfoWithoutBinary(attachmentGuid, CurrentSiteName);
}
// If file is not null and current user is set
if (ai != null)
{
TreeNode node;
if (ai.AttachmentDocumentID > 0)
{
node = baseImageEditor.Tree.SelectSingleDocument(ai.AttachmentDocumentID);
}
else
{
// Get parent node ID in case attachment is edited for document not created yet
int parentNodeId = QueryHelper.GetInteger("parentId", 0);
node = baseImageEditor.Tree.SelectSingleNode(parentNodeId);
}
// If current user has appropriate permissions then set image - check hash fro live site otherwise check node permissions
if ((currentUser != null) && (node != null) && ((IsLiveSite && QueryHelper.ValidateHash("hash")) || (!IsLiveSite && (currentUser.IsAuthorizedPerDocument(node, NodePermissionsEnum.Modify) == AuthorizationResultEnum.Allowed))))
{
// Ensure attachment binary data
if (VersionHistoryID == 0)
{
ai.AttachmentBinary = AttachmentInfoProvider.GetFile(ai, CurrentSiteName);
}
if (ai.AttachmentBinary != null)
{
baseImageEditor.ImgHelper = new ImageHelper(ai.AttachmentBinary);
}
else
{
baseImageEditor.LoadingFailed = true;
baseImageEditor.ShowError(GetString("img.errors.loading"));
}
}
else
{
baseImageEditor.LoadingFailed = true;
baseImageEditor.ShowError(GetString("img.errors.filemodify"));
}
}
else
{
baseImageEditor.LoadingFailed = true;
baseImageEditor.ShowError(GetString("img.errors.loading"));
}
}
break;
}
// Check that image is in supported formats
if ((!baseImageEditor.LoadingFailed) && (baseImageEditor.ImgHelper.ImageFormatToString() == null))
{
baseImageEditor.LoadingFailed = true;
baseImageEditor.ShowError(GetString("img.errors.format"));
}
// Disable editor if loading failed
if (baseImageEditor.LoadingFailed)
{
Enabled = false;
}
}