Rename to VAR.Focus

VAR.Focus.Web/Code/BusinessLogic/Users.cs

@@ -0,0 +1,146 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using VAR.Focus.Web.Code.Entities;
+using VAR.Focus.Web.Code.JSON;
+
+namespace VAR.Focus.Web.Code.BusinessLogic
+{
+    public class Users
+    {
+        #region declarations
+
+        private static Users _currentInstance = null;
+
+        private List<User> _users = new List<User>();
+
+        #endregion
+
+        #region Properties
+
+        public static Users Current
+        {
+            get
+            {
+                if (_currentInstance == null)
+                {
+                    _currentInstance = new Users();
+                }
+                return _currentInstance;
+            }
+            set { _currentInstance = value; }
+        }
+
+        #endregion
+
+        #region Life cycle
+
+        public Users()
+        {
+            LoadData();
+        }
+
+        #endregion
+
+        #region Public methods
+
+        public User User_GetByName(string name)
+        {
+            name=name.ToLower();
+            foreach (User userAux in _users)
+            {
+                if (name.CompareTo(userAux.Name.ToLower()) == 0)
+                {
+                    return userAux;
+                }
+            }
+            return null;
+        }
+
+        public User User_GetByEmail(string email)
+        {
+            email = email.ToLower();
+            foreach (User userAux in _users)
+            {
+                if (email.CompareTo(userAux.Email.ToLower()) == 0)
+                {
+                    return userAux;
+                }
+            }
+            return null;
+        }
+
+        public User User_GetByNameOrEmail(string name, string email)
+        {
+            name = name.ToLower();
+            email = email.ToLower();
+            foreach (User userAux in _users)
+            {
+                if (name.CompareTo(userAux.Name.ToLower()) == 0 ||
+                    email.CompareTo(userAux.Email.ToLower()) == 0)
+                {
+                    return userAux;
+                }
+            }
+            return null;
+        }
+
+        public User User_Set(string name, string email, string password)
+        {
+            User user = null;
+            bool isNew = false;
+            lock (_users)
+            {
+                user = User_GetByName(name);
+                if (user == null) { user = User_GetByEmail(name); }
+                if (user == null) { user = new User(); isNew = true; }
+
+                user.Name = name;
+                user.Email = email;
+                if (string.IsNullOrEmpty(password) == false)
+                {
+                    user.PasswordSalt = CryptoUtils.GetCryptoToken();
+                    user.PasswordHash = CryptoUtils.GetHashedPassword(password, user.PasswordSalt);
+                }
+
+                if (isNew) { _users.Add(user); }
+
+                SaveData();
+            }
+            return user;
+        }
+
+        public bool User_Authenticate(string nameOrMail, string password)
+        {
+            User user = User_GetByNameOrEmail(nameOrMail, nameOrMail);
+            if (user == null) { return false; }
+
+            string passwordHash = CryptoUtils.GetHashedPassword(password, user.PasswordSalt);
+            if (passwordHash != user.PasswordHash) { return false; }
+
+            return true;
+        }
+
+        #endregion
+
+        #region Private methods
+
+        #region Persistence
+
+        private const string PersistenceFile = "priv/users.json";
+
+        private void LoadData()
+        {
+            _users = Persistence.LoadList<User>(PersistenceFile);
+        }
+
+        private void SaveData()
+        {
+            Persistence.SaveList(PersistenceFile, _users);
+        }
+
+        #endregion
+
+        #endregion
+    }
+}