/// <summary>
/// Creates the media object from the file specified in <paramref name="options" />.
/// </summary>
/// <param name="options">The options.</param>
/// <returns>List{ActionResult}.</returns>
/// <exception cref="Events.CustomExceptions.GallerySecurityException">Thrown when user is not authorized to add a media object to the album.</exception>
/// <remarks>This function can be invoked from a thread that does not have access to the current HTTP context (for example, when
/// uploading ZIP files). Therefore, be sure nothing in this body (or the functions it calls) uses HttpContext.Current, or at
/// least check it for null first.</remarks>
private static List <ActionResult> CreateMediaObjectFromFile(AddMediaObjectSettings options)
{
string sourceFilePath = Path.Combine(AppSetting.Instance.PhysicalApplicationPath, GlobalConstants.TempUploadDirectory, options.FileNameOnServer);
try
{
IAlbum album = AlbumController.LoadAlbumInstance(options.AlbumId, true, true);
if (HttpContext.Current != null)
{
SecurityManager.ThrowIfUserNotAuthorized(SecurityActions.AddMediaObject, RoleController.GetGalleryServerRolesForUser(), album.Id, album.GalleryId, Utils.IsAuthenticated, album.IsPrivate, album.IsVirtualAlbum);
}
else
{
// We are extracting files from a zip archive (we know this because this is the only scenario that happens on a background
// thread where HttpContext.Current is null). Tweak the security check slightly to ensure the HTTP context isn't used.
// The changes are still secure because options.CurrentUserName is assigned in the server's API method.
SecurityManager.ThrowIfUserNotAuthorized(SecurityActions.AddMediaObject, RoleController.GetGalleryServerRolesForUser(options.CurrentUserName), album.Id, album.GalleryId, !String.IsNullOrWhiteSpace(options.CurrentUserName), album.IsPrivate, album.IsVirtualAlbum);
}
var extension = Path.GetExtension(options.FileName);
if (extension != null && ((extension.Equals(".zip", StringComparison.OrdinalIgnoreCase)) && (options.ExtractZipFile)))
{
List <ActionResult> result;
// Extract the files from the zipped file.
using (var zip = new ZipUtility(options.CurrentUserName, RoleController.GetGalleryServerRolesForUser(options.CurrentUserName)))
{
using (var fs = new FileStream(sourceFilePath, FileMode.Open, FileAccess.Read))
{
result = zip.ExtractZipFile(fs, album, options.DiscardOriginalFile);
}
}
album.SortAsync(true, options.CurrentUserName, true);
return(result);
}
else
{
string albumPhysicalPath = album.FullPhysicalPathOnDisk;
string filename = HelperFunctions.ValidateFileName(albumPhysicalPath, options.FileName);
string filepath = Path.Combine(albumPhysicalPath, filename);
MoveFile(filepath, sourceFilePath);
ActionResult result = CreateMediaObject(filepath, album, options);
album.Sort(true, options.CurrentUserName);
return(new List <ActionResult> {
result
});
}
}
catch (Exception ex)
{
AppEventController.LogError(ex);
return(new List <ActionResult>
{
new ActionResult
{
Title = options.FileName,
Status = ActionResultStatus.Error.ToString(),
Message = "The event log may have additional details."
}
});
}
finally
{
try
{
// If the file still exists in the temp directory, delete it. Typically this happens when we've
// extracted the contents of a zip file (since other files will have already been moved to the dest album.)
if (File.Exists(sourceFilePath))
{
File.Delete(sourceFilePath);
}
}
catch (IOException) { } // Ignore an error; not a big deal if it continues to exist in the temp directory
catch (UnauthorizedAccessException) { } // Ignore an error; not a big deal if it continues to exist in the temp directory
}
}
