/// <summary>
/// Create a new Upload object.
/// </summary>
/// <param name="id">Initial value of the Id property.</param>
public static Upload CreateUpload(global::System.Int32 id)
{
Upload upload = new Upload();
upload.Id = id;
return upload;
}
/// <summary>
/// Adds a new image to the gallery
/// </summary>
/// <param name="galleryName"></param>
/// <param name="fileName"></param>
/// <param name="user"></param>
/// <param name="inputStream"></param>
/// <returns></returns>
public string UploadImage(string galleryName, string fileName, IPrincipal user, Stream inputStream)
{
lock (UploadSyncContext)
{
var destinationFile = GetGalleryFile(galleryName, fileName);
var entities = new DatabaseEntities();
var uploads = from upload in entities.Uploads
where upload.Gallery == galleryName && upload.User == user.Identity.Name
select upload;
var uploadEntity = uploads.Where(upload => upload.Image == fileName).SingleOrDefault();
if (uploadEntity != null)
{
uploadEntity.LastUpdate = DateTime.Now;
uploadEntity.User = user.Identity.Name;
}
else
{
if (!IsAdminUser(user))
{
var uploadEnabled = (from set in entities.Settings where set.Gallery == galleryName select set.UploadEnabled).SingleOrDefault();
if (uploadEnabled != true)
{
throw new SecurityException("Not authorized");
}
if (destinationFile.Exists)
{
// duplicate file name, not allowed to overwrite other's files
throw new DuplicateNameException("A file with same name already exists in this gallery.");
}
// check upload limit, if any
if (UserUploadLimit > 0 && uploads.Count() >= UserUploadLimit)
{
throw new IndexOutOfRangeException("Upload limit exceeded.");
}
}
// add new upload record
uploadEntity = new Upload
{
Gallery = galleryName,
Image = fileName,
User = user.Identity.Name,
LastUpdate = DateTime.Now
};
entities.Uploads.AddObject(uploadEntity);
}
var success = false;
try
{
// remove thumbnail
var thumbnailFile = GetGalleryFile(galleryName, "thumb\\" + fileName);
if (thumbnailFile.Exists)
{
thumbnailFile.Delete();
}
var resizeTo = GetMaxImageSize();
using (var image = Image.FromStream(inputStream))
{
var title = image.GetImageTitle();
if (string.IsNullOrWhiteSpace(title))
{
title = Path.GetFileNameWithoutExtension(destinationFile.Name);
}
uploadEntity.Title = title;
using (var resized = image.Resize(resizeTo.Width, resizeTo.Height))
{
// resize and save to file
resized.Save(destinationFile.FullName, 100, image.RawFormat);
}
}
// commit db changes
entities.SaveChanges();
// done
success = true;
}
finally
{
if (!success)
{
destinationFile.Delete();
}
}
return destinationFile.FullName;
}
}
/// <summary>
/// Deprecated Method for adding a new object to the Uploads EntitySet. Consider using the .Add method of the associated ObjectSet<T> property instead.
/// </summary>
public void AddToUploads(Upload upload)
{
base.AddObject("Uploads", upload);
}
/// <summary>
/// Deprecated Method for adding a new object to the Uploads EntitySet. Consider using the .Add method of the associated ObjectSet<T> property instead.
/// </summary>
public void AddToUploads(Upload upload)
{
base.AddObject("Uploads", upload);
}
