public ResourceBE[] IdentifyUnknownImages(IEnumerable <ResourceBE> attachments)
{
List <ResourceBE> ret = new List <ResourceBE>();
foreach (ResourceBE file in attachments)
{
ResourceBE updatedFile = file;
if (file != null && IsAllowedForImageMagickPreview(file) && (file.MetaXml.ImageHeight == null || file.MetaXml.ImageWidth == null))
{
StreamInfo fileInfo = _dekiContext.Instance.Storage.GetFile(file, SizeType.ORIGINAL, false);
if (file != null)
{
int width;
int height;
int frames;
if (AttachmentPreviewBL.RetrieveImageDimensions(fileInfo, out width, out height, out frames))
{
file.MetaXml.ImageWidth = width;
file.MetaXml.ImageHeight = height;
// check if we need to store the number of frames (default is 1)
if (frames > 1)
{
file.MetaXml.ImageFrames = frames;
}
updatedFile = _resourceBL.UpdateResourceRevision(file);
}
}
}
ret.Add(updatedFile);
}
return(ret.ToArray());
}
private XDoc AppendFileXml(XDoc doc, ResourceBE file, string fileSuffix, bool?explicitRevisionInfo, UserBE updatedByUser, PageBE parentPage)
{
bool requiresEnd = false;
string fileElement = string.IsNullOrEmpty(fileSuffix) ? "file" : "file." + fileSuffix;
if (doc == null || doc.IsEmpty)
{
doc = new XDoc(fileElement);
}
else
{
doc.Start(fileElement);
requiresEnd = true;
}
doc.Attr("id", file.MetaXml.FileId ?? 0);
doc.Attr("revision", file.Revision);
doc.Attr("res-id", file.ResourceId);
if (file.IsHidden)
{
doc.Attr("hidden", true);
}
doc.Attr("href", GetUriInfo(file, explicitRevisionInfo));
doc.Start("filename").Value(file.Name).End();
//Description comes from a property
string description = string.Empty;
if (!ArrayUtil.IsNullOrEmpty(file.ChildResources))
{
ResourceBE descProp = Array.Find(file.ChildResources, p => p != null && p.ResourceType == ResourceBE.Type.PROPERTY && p.Name.EqualsInvariantIgnoreCase(PropertyBL.PROP_DESC));
if (descProp != null)
{
description = descProp.Content.ToText();
}
}
doc.Start("description").Value(description).End();
doc.Start("contents")
.Attr("type", file.MimeType == null ? null : file.MimeType.ToString())
.Attr("size", file.Size);
if ((file.MetaXml.ImageHeight ?? 0) > 0 && (file.MetaXml.ImageWidth ?? 0) > 0)
{
doc.Attr("width", file.MetaXml.ImageWidth.Value);
doc.Attr("height", file.MetaXml.ImageHeight.Value);
}
doc.Attr("href", GetUriContent(file, explicitRevisionInfo));
doc.End(); //contents
if ((file.MetaXml.ImageWidth ?? 0) > 0 && (file.MetaXml.ImageHeight ?? 0) > 0)
{
string previewMime = AttachmentPreviewBL.ResolvePreviewMime(file.MimeType).ToString();
doc.Start("contents.preview")
.Attr("rel", "thumb")
.Attr("type", previewMime)
.Attr("maxwidth", _dekiContext.Instance.ImageThumbPixels)
.Attr("maxheight", _dekiContext.Instance.ImageThumbPixels)
.Attr("href", GetUriContent(file, explicitRevisionInfo).With("size", "thumb"));
if (!file.IsHeadRevision() || (explicitRevisionInfo ?? false))
{
doc.Attr("revision", file.Revision);
}
doc.End(); //contents.preview: thumb
doc.Start("contents.preview")
.Attr("rel", "webview")
.Attr("type", previewMime)
.Attr("maxwidth", _dekiContext.Instance.ImageWebviewPixels)
.Attr("maxheight", _dekiContext.Instance.ImageWebviewPixels)
.Attr("href", GetUriContent(file, explicitRevisionInfo).With("size", "webview"));
if (!file.IsHeadRevision() || (explicitRevisionInfo ?? false))
{
doc.Attr("revision", file.Revision);
}
doc.End(); //contents.preview: webview
}
doc.Start("date.created").Value(file.Timestamp).End();
if (updatedByUser != null)
{
doc.Add(UserBL.GetUserXml(updatedByUser, "createdby", Utils.ShowPrivateUserInfo(updatedByUser)));
}
if (file.ResourceIsDeleted && ((file.ChangeMask & ResourceBE.ChangeOperations.DELETEFLAG) == ResourceBE.ChangeOperations.DELETEFLAG))
{
if (updatedByUser != null)
{
doc.Add(UserBL.GetUserXml(updatedByUser, "deletedby", Utils.ShowPrivateUserInfo(updatedByUser)));
}
doc.Start("date.deleted").Value(file.Timestamp).End();
}
if (file.IsHeadRevision() && !(explicitRevisionInfo ?? false) && !file.ResourceIsDeleted)
{
uint filteredCount = _session.Resources_GetRevisionCount(file.ResourceId, DEFAULT_REVISION_FILTER);
doc.Start("revisions");
doc.Attr("count", filteredCount);
doc.Attr("totalcount", file.Revision);
doc.Attr("href", GetUri(file).At("revisions"));
doc.End();
}
else
{
if (file.ChangeMask != ResourceBE.ChangeOperations.UNDEFINED)
{
doc.Start("user-action").Attr("type", file.ChangeMask.ToString().ToLowerInvariant()).End();
}
}
//parent page is passed in for verbose output only
if (parentPage != null)
{
doc.Add(PageBL.GetPageXml(parentPage, "parent"));
}
if (file.ChildResources != null)
{
List <ResourceBE> properties = new List <ResourceBE>();
foreach (ResourceBE p in file.ChildResources)
{
properties.Add(p);
}
doc = PropertyBL.Instance.GetPropertyXml(properties.ToArray(), GetUri(file), null, null, doc);
}
if (file.IsHidden)
{
uint?userIdHiddenBy = file.MetaXml.RevisionHiddenUserId;
if (userIdHiddenBy != null)
{
UserBE userHiddenBy = UserBL.GetUserById(userIdHiddenBy.Value);
if (userHiddenBy != null)
{
doc.Add(UserBL.GetUserXml(userHiddenBy, "hiddenby", Utils.ShowPrivateUserInfo(userHiddenBy)));
}
}
doc.Elem("date.hidden", file.MetaXml.RevisionHiddenTimestamp ?? DateTime.MinValue);
doc.Elem("description.hidden", file.MetaXml.RevisionHiddenComment ?? string.Empty);
}
if (requiresEnd)
{
doc.End(); //file
}
return(doc);
}
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);
}
