bludit/bl-kernel/login.class.php

174 lines
4.6 KiB
PHP

<?php defined('BLUDIT') or die('Bludit CMS.');
class Login {
private $dbUsers;
function __construct()
{
if (isset($GLOBALS['dbUsers'])) {
$this->dbUsers = $GLOBALS['dbUsers'];
} else {
$this->dbUsers = new dbUsers();
}
// Start the Session
if (!Session::started()) {
Session::start();
}
}
// Returns the username of the user logged
public function username()
{
return Session::get('username');
}
// Returns the role of the user logged
public function role()
{
return Session::get('role');
}
// Returns TRUE if the user is logged, FALSE otherwise
public function isLogged()
{
if (Session::get('fingerPrint')===$this->fingerPrint()) {
$username = Session::get('username');
if (!empty($username)) {
return true;
} else {
Log::set(__METHOD__.LOG_SEP.'Session username empty, destroying the session.');
Session::destroy();
return false;
}
}
Log::set(__METHOD__.LOG_SEP.'FingerPrint are differents. Current fingerPrint: '.Session::get('fingerPrint').' !== Current fingerPrint: '.$this->fingerPrint());
return false;
}
// Set the session for the user logged
public function setLogin($username, $role)
{
Session::set('username', $username);
Session::set('role', $role);
Session::set('fingerPrint', $this->fingerPrint());
Session::set('sessionTime', time());
Log::set(__METHOD__.LOG_SEP.'User logged, fingerprint: '.$this->fingerPrint());
}
public function setRememberMe($username)
{
$username = Sanitize::html($username);
// Set the token on the users database
$token = $this->dbUsers->generateRememberToken();
$this->dbUsers->setRememberToken($username, $token);
// Set the token on the cookies
Cookie::set(REMEMBER_COOKIE_USERNAME, $username, REMEMBER_COOKIE_EXPIRE_IN_DAYS);
Cookie::set(REMEMBER_COOKIE_TOKEN, $token, REMEMBER_COOKIE_EXPIRE_IN_DAYS);
Log::set(__METHOD__.LOG_SEP.'Cookies seted for Remember Me.');
}
public function invalidateRememberMe()
{
// Invalidate all tokens on the user databases
$this->dbUsers->invalidateAllRememberTokens();
// Destroy the cookies
Cookie::set(REMEMBER_COOKIE_USERNAME, '', -1);
Cookie::set(REMEMBER_COOKIE_TOKEN, '', -1);
unset($_COOKIE[REMEMBER_COOKIE_USERNAME]);
unset($_COOKIE[REMEMBER_COOKIE_TOKEN]);
}
// Check if the username and the password are valid
// Returns TRUE if valid and set the session
// Returns FALSE for invalid username or password
public function verifyUser($username, $password)
{
$username = Sanitize::html($username);
$username = trim($username);
if (empty($username) || empty($password)) {
Log::set(__METHOD__.LOG_SEP.'Username or password empty. Username: '.$username);
return false;
}
if (Text::length($password)<PASSWORD_LENGTH) {
Log::set(__METHOD__.LOG_SEP.'Password lenght less than required.');
return false;
}
$user = $this->dbUsers->getDB($username);
if ($user==false) {
Log::set(__METHOD__.LOG_SEP.'Username does not exist: '.$username);
return false;
}
$passwordHash = $this->dbUsers->generatePasswordHash($password, $user['salt']);
if ($passwordHash===$user['password']) {
$this->setLogin($username, $user['role']);
Log::set(__METHOD__.LOG_SEP.'User logged succeeded by username and password - Username: '.$username);
return true;
}
Log::set(__METHOD__.LOG_SEP.'Password incorrect.');
return false;
}
// Check if the user has the cookies and the correct token
public function verifyUserByRemember()
{
if (Cookie::isEmpty(REMEMBER_COOKIE_USERNAME) || Cookie::isEmpty(REMEMBER_COOKIE_TOKEN)) {
return false;
}
$username = Cookie::get(REMEMBER_COOKIE_USERNAME);
$token = Cookie::get(REMEMBER_COOKIE_TOKEN);
$username = Sanitize::html($username);
$token = Sanitize::html($token);
$username = trim($username);
$token = trim($token);
if (empty($username) || empty($token)) {
$this->invalidateRememberMe();
Log::set(__METHOD__.LOG_SEP.'Username or Token empty. Username: '.$username.' - Token: '.$token);
return false;
}
if ($username !== $this->dbUsers->getByRememberToken($token)) {
$this->invalidateRememberMe();
Log::set(__METHOD__.LOG_SEP.'The user has different token or the token doesn\'t exist.');
return false;
}
// Validate user and login
$user = $this->dbUsers->getDb($username);
$this->setLogin($username, $user['role']);
Log::set(__METHOD__.LOG_SEP.'User authenticated via Remember Me.');
return true;
}
public function fingerPrint()
{
$agent = getenv('HTTP_USER_AGENT');
if (empty($agent)) {
$agent = 'Bludit/2.0 (Mr Nibbler Protocol)';
}
return sha1($agent);
}
public function logout()
{
$this->invalidateRememberMe();
Session::destroy();
return true;
}
}