/// <summary>
/// Registers a new user in the system.
/// </summary>
/// <param name="username">The username.</param>
/// <param name="email">The email.</param>
/// <param name="password">The password.</param>
/// <param name="errorMessage">The error message.</param>
/// <returns></returns>
public bool RegisterUser(string username, string email, string password, out string errorMessage)
{
errorMessage = String.Empty;
try {
using (var db = new SignalRChatEntities()) {
// Checking if user exists
var user = db.Users.SingleOrDefault(x => x.Username == username.ToLower());
if (user != null)
{
errorMessage = "The specified username already exists in the system.";
return(false);
}
user = db.Users.SingleOrDefault(x => x.Email == email.ToLower());
if (user != null)
{
errorMessage = "The specified email address already exists in the system.";
return(false);
}
var newUser = new User {
Created = DateTime.UtcNow,
Email = email.ToLower(),
LastLogin = DateTime.UtcNow,
Password = SHA1Hash.Generate(password),
Username = username.ToLower()
};
db.Users.Add(newUser);
db.SaveChanges();
return(true);
}
}
catch (Exception ex) {
//TODO: Log Exception
}
return(false);
}
/// <summary>
/// Changes the password.
/// </summary>
/// <param name="username">The username.</param>
/// <param name="newPassword">The new password.</param>
/// <returns></returns>
public bool ChangePassword(string username, string newPassword)
{
try {
using (var db = new SignalRChatEntities()) {
var user = db.Users.SingleOrDefault(x => x.Username == username.ToLower());
if (user != null)
{
user.Password = SHA1Hash.Generate(newPassword);
}
db.SaveChanges();
return(true);
}
}
catch (Exception ex) {
//TODO: Log Exception
}
return(false);
}
/// <summary>
/// Logins the user.
/// </summary>
/// <param name="email">The email.</param>
/// <param name="password">The password.</param>
/// <returns></returns>
public bool LoginUser(string email, string password)
{
try {
using (var db = new SignalRChatEntities()) {
var lowerEmail = email.ToLower();
var passwordHash = SHA1Hash.Generate(password);
var user = db.Users.SingleOrDefault(x => x.Email == lowerEmail && x.Password == passwordHash);
if (user != null)
{
user.LastLogin = DateTime.UtcNow;
db.SaveChanges();
return(true);
}
}
}
catch (Exception ex) {
//TODO: Handle Exception
}
return(false);
}
