public async Task <ActionResult <User> > Create(User user)
{
if (await _userService.GetWithEmail(user.Email) != null)
{
return(Unauthorized("Email already exists."));
}
var salt = HashProvider.GetSalt();
user.IV = salt;
user.Password = HashProvider.GetHash(user.Password, salt);
user.CreatedAt = DateTime.Now;
var claims = new[]
{
new Claim(ClaimTypes.Email, user.Email)
};
user.RefreshToken = TokenProvider.GetToken
(
user,
_configuration["SecurityKey"],
DateTime.Now.AddYears(100),
claims
);
await _userService.Create(user);
return(CreatedAtRoute("GetUser", new { id = user.Id.ToString() }, user));
}
/// <summary>
/// Registers a new user. The PasswordHash property should be the actual password.
/// </summary>
/// <param name="user">A user with a raw password which is turned into a password hash as part of registration.</param>
/// <param name="duration">The amount of time that the initial session will be valid.</param>
/// <param name="ipAddress">The internet address where the user is connecting from.</param>
/// <param name="result">A ExecutionResults instance to add applicable
/// warning and error messages to.</param>
/// <returns>A boolean indicating success (true) or failure (false).</returns>
public override UserIdentity RegisterUser(User user, UserSessionDurationType duration, String ipAddress, ExecutionResults result)
{
string password = user.PasswordHash;
if (!ValidateName(user.Name, result) || !ValidatePassword(password, result))
{
return(new cs.UserIdentity());
}
var existing = GetUserByName(user.Name);
if (existing != null)
{ //seed user table with deleted users with names you don't want users to have
result.AppendError("The name you specified cannot be used.");
return(new cs.UserIdentity());
}
if (user.UserID.Equals(Guid.Empty))
{
user.UserID = Guid.NewGuid();
}
HashProvider hasher = HashManager.SelectProvider();
var salt = new UserSalt
{
PasswordSalt = hasher.GetSalt(),
UserID = user.UserID,
HashGroup = new Random(DateTime.Now.Second).Next(HashGroupMinimum, HashGroupMaximum),
HashName = hasher.Name
};
user.PasswordHash = hasher.Hash(salt.PasswordSalt, password,
salt.HashGroup + BaseHashIterations);
using (var scope = new System.Transactions.TransactionScope())
{
//starts as a lightweight transaction
SaveUser(user);
//enlists in a full distributed transaction if users and salts have different connection strings
SaveUserSalt(salt);
}
return(AuthenticateUser(name: user.Name, password: password, duration: duration,
ipAddress: ipAddress, checkHistory: false, allowUpdateHash: false, result: result));
}
/// <summary>
/// Generates a new password reset code for a user and stores that as the current code valid
/// for the next hour.
/// </summary>
/// <param name="name">The user name / email address.</param>
/// <returns>If the user exists, then a reset code string; otherwise null.</returns>
public override String GenerateUserResetCode(String name)
{
var user = GetUserByName(name);
if (user == null)
{
return(null);
}
var salt = GetUserSalt(user.UserID);
if (!String.IsNullOrWhiteSpace(salt.ResetCode) && salt.ResetCodeExpiration > DateTime.UtcNow.AddMinutes(5))
{
return(salt.ResetCode); //if submits form to request a code multiple times during window, then use the same code unless about to expire.
}
HashProvider hasher = !string.IsNullOrEmpty(salt.HashName) ? HashManager.Providers[salt.HashName] : HashManager.DefaultProvider;
salt.ResetCode = hasher.GetSalt(16);
salt.ResetCodeExpiration = DateTime.UtcNow.AddHours(1);
SaveUserSalt(salt);
return(salt.ResetCode);
}
/// <summary>
/// updates a user's name and/or password.
/// </summary>
/// <param name="item">The user details to be saved. If Password is empty is it not changed. If specified it should be the new raw password (not a hash).</param>
/// <param name="currentPassword">The current raw password for the user used to authenticate that the change can be made, or the current resetcode last sent to this user.</param>
/// <param name="ipAddress">The internet address where the user is connecting from.</param>
/// <param name="result">A ExecutionResults instance to add applicable
/// warning and error messages to.</param>
/// <returns>A boolean indicating success (true) or failure (false).</returns>
public override bool UpdateUser(User item, String currentPassword, String ipAddress, ExecutionResults result)
{
if (item.UserID.Equals(Guid.Empty))
{
throw new ArgumentException("The user identity must be specified.");
}
var user = GetUserByID(item.UserID);
var salt = GetUserSalt(item.UserID);
if (user == null || salt == null)
{
result.AppendError("The specified user identity does not exist.");
return(false);
}
if (salt.ResetCode == currentPassword)
{
if (salt.ResetCodeExpiration < DateTime.UtcNow)
{
result.AppendError(
"Your password reset code has expired. Request a new one to be sent to you, and then use it immediately.");
return(false);
}
salt.ResetCode = null;
salt.ResetCodeExpiration = DateTime.UtcNow;
}
else
{
var rememberMe = !cs.SecurityContextManager.IsAnonymous &&
cs.SecurityContextManager.CurrentUser.Identity.Ticket.UserSession.ExpirationDate >
DateTime.UtcNow.AddMinutes(PublicSessionDuration);
if (!AuthenticateUser(name: item.Name, password: currentPassword, ipAddress: ipAddress,
duration: rememberMe ? UserSessionDurationType.Extended : UserSessionDurationType.PublicComputer,
allowUpdateHash: false, checkHistory: false, result: result).IsAuthenticated)
{
result.AppendError("Cannot change password due to authentication error with current password.");
return(false);
}
}
if (user.Name != item.Name)
{ //user is changing their sign in name. Make sure the new name is available.
var nameExisting = GetUserByName(item.Name);
if (nameExisting != null)
{
result.AppendError("The name you specified cannot be used.");
return(false);
}
user.Name = item.Name;
}
if (!String.IsNullOrEmpty(item.PasswordHash))
{
var password = item.PasswordHash;
//update hashes on regular basis, keeps the iterations in latest range for current users, and with a 'current' hash provider.
HashProvider hasher = HashManager.SelectProvider();
salt.PasswordSalt = hasher.GetSalt();
salt.HashGroup = new Random(DateTime.Now.Second).Next(HashGroupMinimum, HashGroupMaximum);
salt.HashName = hasher.Name;
user.PasswordHash = hasher.Hash(salt.PasswordSalt, password, salt.HashGroup + BaseHashIterations);
user.PasswordUpdatedDate = DateTime.UtcNow;
}
using (var scope = new System.Transactions.TransactionScope())
{
//starts as a lightweight transaction
SaveUser(user);
//enlists in a full distributed transaction if users and salts have different connection strings
SaveUserSalt(salt);
}
return(true);
}
private cs.UserIdentity AuthenticateUser(string name, string password,
UserSessionDurationType duration, string ipAddress, bool checkHistory,
bool allowUpdateHash, ExecutionResults result)
{
if (checkHistory)
{
var recentFailures = GetRecentFailedUserNameAuthenticationCount(name);
if (recentFailures > AllowedFailuresPerPeriod)
{
return(FailAuthenticateUser(name, ipAddress, result));
}
}
User user = GetUserByName(name);
if (user == null)
{
return(FailAuthenticateUser(name, ipAddress, result));
}
UserSalt salt = GetUserSalt(user.UserID);
if (salt == null)
{
return(FailAuthenticateUser(name, ipAddress, result));
}
//this should get a named hashProvider used to originally hash the password...
// fallback to 'default' provider in legacy case when we didn't store the name.
HashProvider hasher = !string.IsNullOrEmpty(salt.HashName) ? HashManager.Providers[salt.HashName] : HashManager.DefaultProvider;
var passwordHash = hasher.Hash(salt.PasswordSalt, password, salt.HashGroup + BaseHashIterations);
if (user.PasswordHash != passwordHash)
{
return(FailAuthenticateUser(name, ipAddress, result));
}
var session = new UserSession
{
CreatedDate = DateTime.UtcNow,
ExpirationDate = DateTime.UtcNow.AddMinutes(duration == UserSessionDurationType.PublicComputer ? PublicSessionDuration : ExtendedSessionDuration),
UserID = user.UserID,
RenewalToken = Guid.NewGuid()
};
var history = new AuthenticationHistory
{
IPAddress = ipAddress,
IsAuthenticated = true,
UserName = name,
UserSession = session
};
using (var scope = new System.Transactions.TransactionScope())
{
if (allowUpdateHash && (hasher.IsObsolete || user.PasswordHashUpdatedDate < DateTime.UtcNow.AddMonths(-1)))
{
//update hashes on regular basis, keeps the iterations in latest range for current users, and with a 'current' hash provider.
hasher = HashManager.SelectProvider();
salt.PasswordSalt = hasher.GetSalt();
salt.HashGroup = new Random(DateTime.Now.Second).Next(HashGroupMinimum, HashGroupMaximum);
salt.HashName = hasher.Name;
user.PasswordHash = hasher.Hash(salt.PasswordSalt, password, salt.HashGroup + BaseHashIterations);
user.PasswordHashUpdatedDate = DateTime.UtcNow;
//starts as a lightweight transaction
SaveUser(user);
//enlists in a full distributed transaction if users and salts have different connection strings
SaveUserSalt(salt);
}
//either continues distributed transaction if applicable,
// or creates a new lightweight transaction for these two commands
SaveUserSession(session);
InsertUserHistory(history);
}
return(new cs.UserIdentity(history, this.Name));
}
