private Access( User.User _user, AccessLevel _level, Object _object )
{
if ( _user == null || _object == null )
throw new AccessException(
Global.StaticResourceManager.GetStringResource("ACCESS_INVALID_USER_PARAMS"));
User = _user;
Level = _level;
AccessObject = _object;
}
/// <summary>
/// Gets user from a 'users' list
/// </summary>
/// <param name="login"></param>
/// <returns></returns>
public static User Get( string login )
{
var strg = FindLogin( login );
if ( strg != null ) {
var tmp = strg.Item1.Split(':');
var user = new User();
user.Credentials.Login = login;
user.Credentials.hashed_pwd = tmp[1];
return user;
}
return null;
}
/// <summary>
/// Creates a new user
/// </summary>
/// <param name="login"></param>
/// <param name="passwd"></param>
/// <returns></returns>
public static User New( string login, string passwd )
{
if ( FindLogin( login ) != null ) {
Errors.Messages.DisplayError(
Global.StaticResourceManager.GetStringResource( "USER_ALREADY_EXISTS" ),
"Adding a new user",
"",
DateTime.Now);
return Get( login );
}
var user = new User();
user.Credentials = new UserCredentials();
user.Credentials.Login = login;
user.Credentials.Password = passwd;
SaveToUsersList( user );
return user;
}
/// <summary>
/// Adds a new user to a userlist file
/// </summary>
/// <param name="_user"></param>
private static void SaveToUsersList( User _user )
{
CreateUsersList();
CreateBackup();
var fl = FindLogin(_user.Credentials.Login);
var usr_strg = _user.Credentials.Login + ":" + _user.Credentials.hashed_pwd;
if ( fl == null ) {
using ( var fs = new FileStream( users_file_path, FileMode.Append, FileAccess.Write ) ) {
var sw = new StreamWriter( fs );
sw.WriteLine(usr_strg);
sw.Close();
}
} else {
using ( var fs = new FileStream( users_file_path, FileMode.Append, FileAccess.Write ) ) {
var sw = new StreamWriter( fs );
sw.BaseStream.Position = fl.Item2;
sw.WriteLine(usr_strg);
sw.Close();
}
}
}
/// <summary>
/// Removes user from a userlist file
/// </summary>
/// <param name="_user"></param>
private static void RemoveFromUsersList( User _user )
{
throw new NotImplementedException("Method isn't implemented");
}
/// <summary>
/// Adds a new user to a userlist file
/// </summary>
/// <param name="_user"></param>
/// <param name="new_password"></param>
private static void ChangePassword( User _user, string new_password )
{
_user.Credentials.Password = new_password;
}
/// <summary>
/// Getting an instance for given user, level and object
/// </summary>
/// <param name="_user"></param>
/// <param name="_level"></param>
/// <param name="_object"></param>
/// <returns></returns>
public static Access Instance( User.User _user, AccessLevel _level, Object _object )
{
// Let's look in our array. Do we already have a such object?
foreach ( var al in instances ) {
if ( al.User.Credentials.Login == _user.Credentials.Login &&
al.Level == _level &&
al.AccessObject == _object ) {
return al;
}
}
// If we don't have => let's create a new Access instance and add it to our array
var new_acc = new Access( _user, _level, _object );
instances.Add( new_acc );
new_acc.Save();
return new_acc;
}