public IActionResult Add()
{
if (ModelState.IsValid)
{
Passwd.UserId = Functions.getUser(_cache).Id; // get logged user
var masterPassword = _cache.Get(CacheNames.masterPassword).ToString(); // get current user masterpassword
var encrypted = AESHelper.EncryptString(Passwd.Password, masterPassword); // encrypt with masterpassword
Passwd.Password = Convert.ToBase64String(encrypted); // add encypted password as a string to variable
_db.Passwds.Add(Passwd); // add var to database
ActionType actionType = new ActionType()
{
Action = "Add password to database",
UserId = Passwd.UserId,
Time = DateTime.Now
};
Functions.AddActionToDatabase(_db, actionType);
_db.SaveChanges(); // save database
return(RedirectToAction("Index"));
}
return(View(Passwd));
}
public IActionResult Decrypt(int id)
{
if (_cache.Get(CacheNames.getMasterPassword).ToString() != "1") // ask user for masterpassword first time
{
return(RedirectToAction("MasterPassword"));
}
Passwd toDecrypt = _db.Passwds.Where(a => a.Id == id).FirstOrDefault(); // get password to decrypt by id
User usr = Functions.getUser(_cache);
if (toDecrypt.UserId != usr.Id)
{
var sharedPass = _db.SharedPasswds.Where(a => a.UserSharedId == usr.Id).ToList();
List <int> ids = new List <int>();
foreach (SharedPasswd sPass in sharedPass)
{
ids.Add(sPass.PasswdId);
}
if (!ids.Contains(toDecrypt.Id))
{
return(RedirectToAction("Index"));
}
}
ActionType actionType = new ActionType()
{
Action = "Decrypt password id=" + id,
UserId = usr.Id,
Time = DateTime.Now
};
Functions.AddActionToDatabase(_db, actionType);
var decrypt = Convert.FromBase64String(toDecrypt.Password); // covnvert string into byte[] to decrypt
var passwordOwner = _db.Users.Where(a => a.Id == toDecrypt.UserId).FirstOrDefault();
toDecrypt.Password = AESHelper.DecryptToString(decrypt, passwordOwner.Password); // decrypting password
AppViewModel appViewModel = new AppViewModel
{
User = Functions.getUser(_cache),
Logged = Functions.getLogged(_cache),
Passwd = toDecrypt
};
return(View(appViewModel));
}
public IActionResult Logout()
{
ActionType actionType = new ActionType()
{
Action = "Log out",
UserId = Functions.getUser(_cache).Id,
Time = DateTime.Now
};
Functions.AddActionToDatabase(_db, actionType);
_cache.Remove(CacheNames.readMode);
_cache.Remove(CacheNames.user);
_cache.Remove(CacheNames.logged);
_cache.Remove(CacheNames.masterPassword);
_cache.Remove(CacheNames.getMasterPassword);
return(RedirectToAction("Login"));
}
public IActionResult Edit()
{
var password = _db.Passwds.Where(a => a.Id == Passwd.Id).FirstOrDefault();
if (password.UserId == Functions.getUser(_cache).Id)
{
if (ModelState.IsValid)
{
var oldPassword = password.Password;
var masterPassword = _cache.Get(CacheNames.masterPassword).ToString(); // get current user masterpassword
var encrypted = AESHelper.EncryptString(Passwd.Password, masterPassword); // encrypt with masterpassword
password.Password = Convert.ToBase64String(encrypted); // add encypted password as a string to variable
password.WebAddress = Passwd.WebAddress;
password.Login = Passwd.Login;
ActionType actionType = new ActionType()
{
Action = "Edit password id=" + password.Id,
UserId = password.UserId,
Time = DateTime.Now
};
Functions.AddActionToDatabase(_db, actionType);
PasswdHistory passwdHistory = new PasswdHistory()
{
NewPasswd = password.Password,
OldPasswd = oldPassword,
Time = DateTime.Now,
UserId = password.UserId,
PasswdId = password.Id
};
Functions.AddHistoryToDatabase(_db, passwdHistory);
_db.SaveChanges(); // save database
return(RedirectToAction("Index"));
}
return(View(Passwd));
}
_cache.Set(CacheNames.error4, "You are not the owner");
return(RedirectToAction("Index"));
}
public IActionResult Signin()
{
var ip = HttpContext.Connection.RemoteIpAddress.ToString();
AddressIP address = _db.AddressIPs.Where(a => a.Address == ip).FirstOrDefault();
if (address == null)
{
address = new AddressIP()
{
Address = ip,
Correct = 0,
Incorrect = 1
};
_db.AddressIPs.Add(address);
}
if (Functions.IsIpBlocked(address))
{
if (_db.Users.Where(a => a.Nickname == App.User.Nickname).FirstOrDefault <User>() is User user)
{
var lastAttempt = _db.LoginAttempts.Where(a => a.AddressIp == ip && a.UserId == user.Id)
.OrderByDescending(a => a.Date).FirstOrDefault();
if (lastAttempt == null)
{
lastAttempt = new LoginAttempt()
{
Attempt = 0
};
}
if (Functions.IsUserBlocked(user))
{
user = Functions.UnblockUser(user);
}
if (Functions.Login(user, App.User.Password))
{
LoginAttempt loginAttempt = new LoginAttempt()
{
UserId = user.Id,
AddressIp = ip,
Attempt = 0,
Date = DateTime.Now,
Successful = true
};
address.Correct = 1;
address.Incorrect = 0;
_db.LoginAttempts.Add(loginAttempt);
ActionType actionType = new ActionType()
{
Action = "Log in",
UserId = user.Id,
Time = DateTime.Now
};
Functions.AddActionToDatabase(_db, actionType);
_db.SaveChanges();
_cache.Set(CacheNames.readMode, "0"); // set cache variables
_cache.Set(CacheNames.user, user);
_cache.Set(CacheNames.logged, "1");
_cache.Set(CacheNames.masterPassword, user.Password);
_cache.Set(CacheNames.getMasterPassword, "0");
return(RedirectToAction("Index", "Home"));
}
else if (Functions.IsUserBlocked(user))
{
error = "\n\nKonto jest zablokowane do " + user.AccountBlockDate;
}
else
{
LoginAttempt failedLoginAttempt = new LoginAttempt()
{
UserId = user.Id,
AddressIp = ip,
Attempt = lastAttempt.Attempt + 1,
Date = DateTime.Now,
Successful = false
};
switch (failedLoginAttempt.Attempt)
{
case 1: break;
case 2: user.AccountBlockDate = DateTime.Now.AddSeconds(15); user.IsAccountBlocked = true; break;
case 3: user.AccountBlockDate = DateTime.Now.AddSeconds(30); user.IsAccountBlocked = true; break;
case 4: user.AccountBlockDate = DateTime.Now.AddMinutes(2); user.IsAccountBlocked = true; break;
default: user.AccountBlockDate = DateTime.Now.AddYears(30); user.IsAccountBlocked = true; break;
}
address.Incorrect++;
switch (address.Incorrect)
{
case 1: break;
case 2: break;
case 3: break;
case 4: break;
case 5: address.IpBlockDate = DateTime.Now.AddSeconds(15); break;
case 6: address.IpBlockDate = DateTime.Now.AddSeconds(30); break;
default: address.IpBlockDate = DateTime.Now.AddMinutes(1); break;
}
_db.LoginAttempts.Add(failedLoginAttempt);
_db.SaveChanges();
if (Functions.IsUserBlocked(user))
{
error = "Konto jest zablokowane do " + user.AccountBlockDate;
}
}
}
}
if (address.IpBlockDate > DateTime.Now)
{
error2 = "Twoje IP jest zablokowane do " + address.IpBlockDate;
}
AppViewModel appViewModel = new AppViewModel
{
User = App.User,
Logged = Functions.getLogged(_cache),
Error = error,
Error2 = error2
};
return(View("Login", appViewModel));
}
