public string GetHash(string hash, IFormFile file)
{
byte[] bytes = Array.Empty <byte>();
using (var ms = new MemoryStream())
{
file.CopyToAsync(ms);
bytes = ms.ToArray();
}
using (SHA256 sha256Hash = SHA256.Create())
{
hash = binaryObjectManager.GetHash(sha256Hash, bytes);
}
return(hash);
}
public List <BinaryObject> UpdateAttachedFiles(UpdateQueueItemViewModel request, QueueItem queueItem)
{
var attachments = queueItemAttachmentRepository.Find(null, q => q.QueueItemId == request.Id)?.Items;
var files = request.Files.ToList();
foreach (var attachment in attachments)
{
var binaryObject = binaryObjectRepository.GetOne(attachment.BinaryObjectId);
//check if file with same hash and queue item id already exists
foreach (var file in request.Files)
{
byte[] bytes = Array.Empty <byte>();
using (var ms = new MemoryStream())
{
file.CopyToAsync(ms);
bytes = ms.ToArray();
}
string hash = string.Empty;
using (SHA256 sha256Hash = SHA256.Create())
{
hash = binaryObjectManager.GetHash(sha256Hash, bytes);
}
if (binaryObject.HashCode == hash && binaryObject.CorrelationEntityId == request.Id)
{
files.Remove(file);
}
}
}
//if file doesn't exist in binary objects (list of files): add binary object entity, upload file, and add queue item attachment entity
var binaryObjects = AttachFiles(files, (Guid)queueItem.Id, queueItem);
return(binaryObjects);
}