public async void setStatus(string Name)
{
data = await _service.login.SingleOrDefaultAsync(e => e.Name == Name);
data.isConnected = "1";
_service.login.Attach(data);
_service.Entry(data).State = EntityState.Modified;
_service.SaveChanges();
}
public bool SendMessage(string message, string emailReceiver, User sender, int conversationId)
{
try
{
var conversation = _context.Conversations.FirstOrDefault(c => c.Id == conversationId);
if (conversation == null)
{
return(false);
}
var returnMessage = new Message();
var aesKey = EncryptionServices.GetAesKey();
var aesIv = EncryptionServices.GetAesIV();
var publicKeyReceiver = _context.PublicKeyStores.FirstOrDefault(s => s.Email == emailReceiver)?.PublicKey;
var encryptedMessageWithAes = EncryptionServices.EncryptWithAes(aesKey, aesIv, message);
var encryptedAesKeyWithRsa = EncryptionServices.EncryptWithRsa(aesKey, publicKeyReceiver);
var encryptedAesIVWithRsa = aesIv;
returnMessage = new Message {
EmailOfSender = sender.Email,
ConversationId = conversationId,
EncryptedAesIV = encryptedAesIVWithRsa,
EncryptedAesKey = encryptedAesKeyWithRsa,
EncryptedContentOfMessage = encryptedMessageWithAes,
SignedData = EncryptionServices.SingData(message, sender.PrivateKey),
};
conversation.Messages.Add(returnMessage);
_context.SaveChanges();
return(true);
}
catch (Exception e)
{
Console.WriteLine(e);
return(false);
}
}
private void AddKeysToDb(RegisterModel model)
{
var user = _context.Users.FirstOrDefault(u => u.Email == model.Email);
var encryptionServices = new EncryptionServices();
var aesIv = EncryptionServices.GetAesIV();
user.AesIv = aesIv;
user.PrivateKey = encryptionServices.GetPrivateKey();
_context.PublicKeyStores.Add(new PublicKeyStore
{
Email = model.Email,
PublicKey = encryptionServices.GetPublicKey()
});
_context.SaveChanges();
}
public ResponseData SignUp(UserSignUp registration)
{
try
{
//It checks emailaddress should not exist
var checkData = database.UserDetails.Where(exist => exist.EmailAddress == registration.EmailAddress).
FirstOrDefault();
if (checkData == null)
{
//Request Body
UserRegistration user = new UserRegistration()
{
FirstName = registration.FirstName,
LastName = registration.LastName,
EmailAddress = registration.EmailAddress,
Password = registration.Password,
RegisteredDate = DateTime.Now
};
database.Add(user);
database.SaveChanges();
//Response Body
ResponseData responseData = new ResponseData()
{
UserId = user.UserId,
FirstName = user.FirstName,
LastName = user.LastName,
EmailAddress = user.EmailAddress,
RegisteredDate = user.RegisteredDate
};
return(responseData);
}
else
{
return(null);
}
}
catch (Exception e)
{
throw new Exception(e.Message);
}
}
public void Commit()
{
dbContext.SaveChanges();
}
/// <summary>
/// Подтвердить изменения.
/// </summary>
public void Commit()
{
// Сохраняем все изменения в контекстк базы данных
dbContext.SaveChanges();
}
public void Add(Conversation newConversation)
{
_context.Conversations.Add(newConversation);
_context.SaveChanges();
}