public virtual ResourceBE Delete(ResourceBE resource, PageBE parentPage, uint changeSetId)
{
//Build the new revision
ResourceBE res = BuildRevForRemove(resource, DateTime.UtcNow, changeSetId);
//Update db
res = SaveResource(res);
//Update indexes and parent page's timestamp
//TODO MaxM: Changesink needs to accept a resource
if (res.ResourceType == ResourceBE.Type.FILE)
{
DekiContext.Current.Instance.EventSink.AttachmentDelete(DekiContext.Current.Now, res, DekiContext.Current.User);
// Recent changes
RecentChangeBL.AddFileRecentChange(DekiContext.Current.Now, parentPage, DekiContext.Current.User, DekiResources.FILE_REMOVED(res.Name), changeSetId);
}
if (parentPage != null)
{
PageBL.Touch(parentPage, DateTime.UtcNow);
}
return(res);
}
public void RestoreAttachment(ResourceBE attachmentToRestore, PageBE toPage, DateTime timestamp, uint transactionId)
{
if (toPage == null || toPage.ID == 0)
{
ArchiveBE archivesMatchingPageId = _session.Archive_GetPageHeadById(attachmentToRestore.ParentPageId.Value);
if (archivesMatchingPageId == null)
{
throw new AttachmentRestoreFailedNoParentFatalException();
}
else
{
toPage = PageBL.GetPageByTitle(archivesMatchingPageId.Title);
if (0 == toPage.ID)
{
PageBL.Save(toPage, _resources.Localize(DekiResources.RESTORE_ATTACHMENT_NEW_PAGE_TEXT()), DekiMimeType.DEKI_TEXT, null);
}
}
}
string filename = attachmentToRestore.Name;
//Check for name conflicts on target page
ResourceBE conflictingFile = GetPageAttachment(toPage.ID, filename);
if (conflictingFile != null)
{
//rename the restored file
filename = string.Format("{0}(restored {1}){2}", attachmentToRestore.FilenameWithoutExtension, DateTime.Now.ToString("g"), string.IsNullOrEmpty(attachmentToRestore.FilenameExtension) ? string.Empty : "." + attachmentToRestore.FilenameExtension);
conflictingFile = GetPageAttachment(toPage.ID, filename);
if (conflictingFile != null)
{
throw new AttachmentRestoreNameConflictException();
}
}
//Build new revision for restored file
attachmentToRestore = BuildRevForRestore(attachmentToRestore, toPage, filename, transactionId);
//Insert new revision into DB
attachmentToRestore = SaveResource(attachmentToRestore);
//Recent Changes
RecentChangeBL.AddFileRecentChange(_dekiContext.Now, toPage, _dekiContext.User, DekiResources.FILE_RESTORED(attachmentToRestore.Name), transactionId);
_dekiContext.Instance.EventSink.AttachmentRestore(_dekiContext.Now, attachmentToRestore, _dekiContext.User);
}
/// <summary>
/// Move this attachment to the target page.
/// </summary>
/// <remarks>
/// This will fail if destination page has a file with the same name.
/// </remarks>
/// <param name="sourcePage">Current file location</param>
/// <param name="targetPage">Target file location. May be same as sourcepage for rename</param>
/// <param name="name">New filename or null for no change</param>
/// <returns></returns>
public ResourceBE MoveAttachment(ResourceBE attachment, PageBE sourcePage, PageBE targetPage, string name, bool loggingEnabled)
{
//TODO MaxM: Connect with a changeset
uint changeSetId = 0;
attachment.AssertHeadRevision();
bool move = targetPage != null && targetPage.ID != sourcePage.ID;
bool rename = name != null && !name.EqualsInvariant(attachment.Name);
//Just return the current revision if no change is being made
if (!move && !rename)
{
return(attachment);
}
//validate filename
if (rename)
{
name = ValidateFileName(name);
}
//Check the resource exists on the target (may be same as source page) with new name (if given) or current name
ResourceBE existingAttachment = GetPageAttachment((targetPage ?? sourcePage).ID, name ?? attachment.Name);
if (existingAttachment != null)
{
throw new AttachmentExistsOnPageConflictException(name ?? attachment.Name, (targetPage ?? sourcePage).Title.AsUserFriendlyName());
}
//Performing a move?
if (move)
{
_dekiContext.Instance.Storage.MoveFile(attachment, targetPage); //Perform the IStorage move (should be a no-op)
}
//Build the new revision
ResourceBE newRevision = BuildRevForMoveAndRename(attachment, targetPage, name, changeSetId);
//Insert new revision into DB
try {
newRevision = SaveResource(newRevision);
} catch {
//failed to save the revision, undo the file move with the IStorage. (Should be a no-op)
if (move)
{
_dekiContext.Instance.Storage.MoveFile(attachment, sourcePage);
}
throw;
//NOTE MaxM: file rename does not even touch IStorage. No need to undo it
}
//Notification for file move
if (loggingEnabled)
{
if (move)
{
RecentChangeBL.AddFileRecentChange(_dekiContext.Now, sourcePage, _dekiContext.User, DekiResources.FILE_MOVED_TO(attachment.Name, targetPage.Title.AsPrefixedUserFriendlyPath()), changeSetId);
RecentChangeBL.AddFileRecentChange(_dekiContext.Now, targetPage, _dekiContext.User, DekiResources.FILE_MOVED_FROM(attachment.Name, sourcePage.Title.AsPrefixedUserFriendlyPath()), changeSetId);
}
if (rename)
{
RecentChangeBL.AddFileRecentChange(_dekiContext.Now, sourcePage, _dekiContext.User, DekiResources.FILE_RENAMED_TO(attachment.Name, name), changeSetId);
}
}
//Notification for file rename and move use same event
_dekiContext.Instance.EventSink.AttachmentMove(_dekiContext.Now, attachment, sourcePage, _dekiContext.User);
return(newRevision);
}
public ResourceBE AddAttachment(ResourceBE existingRevision, Stream filestream, long filesize, MimeType mimeType, PageBE targetPage, string userDescription, string fileName, bool isMsWebDav)
{
if (_dekiContext.Instance.MaxFileSize < filesize)
{
throw new AttachmentMaxFileSizeAllowedInvalidArgumentException(_dekiContext.Instance.MaxFileSize);
}
var saveFileName = ValidateFileName(fileName);
if (existingRevision != null)
{
if (!saveFileName.EqualsInvariant(existingRevision.Name))
{
// An existing file is getting renamed. Make sure no file exists with the new name
var existingAttachment = GetPageAttachment(targetPage.ID, saveFileName);
if (existingAttachment != null)
{
throw new AttachmentExistsOnPageConflictException(saveFileName, targetPage.Title.AsUserFriendlyName());
}
}
}
// If file is found but has been deleted, create a new file.
if (existingRevision != null && existingRevision.ResourceIsDeleted)
{
existingRevision = null;
}
if (isMsWebDav)
{
_log.DebugFormat("Upload client is MD WebDAV, provided mimetype is: {0}", mimeType);
var extensionFileType = MimeType.FromFileExtension(Path.GetExtension(saveFileName));
if (!extensionFileType.Match(mimeType) || extensionFileType == MimeType.DefaultMimeType)
{
mimeType = existingRevision == null ? extensionFileType : existingRevision.MimeType;
_log.DebugFormat("using mimetype '{0}' instead", mimeType);
}
}
ResourceBE attachment;
var resourceContents = new ResourceContentBE((uint)filesize, mimeType);
var isUpdate = false;
if (existingRevision == null)
{
attachment = _resourceBL.BuildRevForNewResource((uint)targetPage.ID, ResourceBE.ParentType.PAGE, saveFileName, mimeType, (uint)filesize, null, ResourceBE.Type.FILE, _dekiContext.User.ID, resourceContents);
}
else
{
isUpdate = true;
attachment = BuildRevForContentUpdate(existingRevision, mimeType, (uint)filesize, null, saveFileName, resourceContents);
}
// rewrite mimetype to text/plain for certain extensions
string extension = attachment.FilenameExtension;
if (_dekiContext.Instance.FileExtensionForceAsTextList.Any(forcedExtensions => extension == forcedExtensions))
{
attachment.MimeType = MimeType.TEXT;
}
// Insert the attachment into the DB
attachment = SaveResource(attachment);
try {
// Save file to storage provider
_dekiContext.Instance.Storage.PutFile(attachment, SizeType.ORIGINAL, new StreamInfo(filestream, filesize, mimeType));
} catch (Exception x) {
_dekiContext.Instance.Log.WarnExceptionFormat(x, "Failed to save attachment to storage provider");
// Upon save failure, delete the record from the db.
_session.Resources_DeleteRevision(attachment.ResourceId, attachment.Revision);
throw;
}
// Set description property
if (!string.IsNullOrEmpty(userDescription))
{
attachment = SetDescription(attachment, userDescription);
}
// For images resolve width/height (if not in imagemagick's blacklist)
attachment = IdentifyUnknownImage(attachment);
// Pre render thumbnails of images
AttachmentPreviewBL.PreSaveAllPreviews(attachment);
PageBL.Touch(targetPage, DateTime.UtcNow);
//TODO MaxM: Connect with transaction
RecentChangeBL.AddFileRecentChange(targetPage.Touched, targetPage, _dekiContext.User, DekiResources.FILE_ADDED(attachment.Name), 0);
if (isUpdate)
{
_dekiContext.Instance.EventSink.AttachmentUpdate(_dekiContext.Now, attachment, _dekiContext.User);
}
else
{
_dekiContext.Instance.EventSink.AttachmentCreate(_dekiContext.Now, attachment, _dekiContext.User);
}
return(attachment);
}
