/
HktAuthSystem.php
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/
HktAuthSystem.php
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<?php
declare(strict_types=1);
namespace Dms\Web\Expressive\Auth;
use Aura\Session\Session;
use Dms\Core\Auth\AdminBannedException;
use Dms\Core\Auth\AdminForbiddenException;
use Dms\Core\Auth\AuthSystem;
use Dms\Core\Auth\IAdmin;
use Dms\Core\Auth\IAdminRepository;
use Dms\Core\Auth\InvalidCredentialsException;
use Dms\Core\Auth\IPermission;
use Dms\Core\Auth\IRoleRepository;
use Dms\Core\Auth\NotAuthenticatedException;
use Dms\Core\Event\IEventDispatcher;
use Dms\Core\Exception\InvalidArgumentException;
use Dms\Core\Ioc\IIocContainer;
use Dms\Web\Expressive\Auth\Password\IPasswordHasherFactory;
/**
* The auth system implementation using aura session.
*
* @author Elliot Levin <elliotlevin@hotmail.com>
*/
class HktAuthSystem extends AuthSystem
{
/**
* @var Session
*/
protected $session;
/**
* @var IAdminRepository
*/
protected $userRepository;
/**
* @var IRoleRepository
*/
protected $roleRepository;
/**
* @var IPasswordHasherFactory
*/
protected $passwordHasherFactory;
/**
* @var IPermission[]|null
*/
protected $currentUsersPermissions;
/**
* @var IIocContainer
*/
protected $iocContainer;
/**
* constructor.
*
* @param Session $session
* @param IAdminRepository $userRepository
* @param IRoleRepository $roleRepository
* @param IPasswordHasherFactory $passwordHasherFactory
* @param IIocContainer $iocContainer
*/
public function __construct(
Session $session,
IAdminRepository $userRepository,
IRoleRepository $roleRepository,
IPasswordHasherFactory $passwordHasherFactory,
IIocContainer $iocContainer
) {
$this->session = $session;
$this->userRepository = $userRepository;
$this->passwordHasherFactory = $passwordHasherFactory;
$this->roleRepository = $roleRepository;
$this->iocContainer = $iocContainer;
}
/**
* @param string $username
* @param string $password
*
* @return IAdmin
* @throws InvalidCredentialsException
* @throws AdminBannedException
*/
protected function loadByCredentials(string $username, string $password) : IAdmin
{
/** @var IAdmin $user */
$users = $this->userRepository->matching(
$this->userRepository->criteria()
->where(Admin::USERNAME, '=', $username)
);
if (count($users) !== 1) {
throw InvalidCredentialsException::defaultMessage($username);
}
$user = $users[0];
$passwordHasher = $this->passwordHasherFactory->buildFor($user->getPassword());
if (!$passwordHasher->verify($password, $user->getPassword())) {
throw InvalidCredentialsException::defaultMessage($username);
}
if ($user->isBanned()) {
throw AdminBannedException::defaultMessage($user);
}
return $user;
}
/**
* Attempts to login with the supplied credentials.
*
* @param string $username
* @param string $password
*
* @return void
* @throws InvalidCredentialsException
* @throws AdminBannedException
*/
public function login(string $username, string $password)
{
$user = $this->loadByCredentials($username, $password);
$segment = $this->session->getSegment(__CLASS__);
$segment->set('auth', $user);
}
/**
* Attempts to logout the currently authenticated user.
*
* @return void
* @throws NotAuthenticatedException
*/
public function logout()
{
$this->getAuthenticatedUser();
$this->session->clear();
}
/**
* Resets the users credentials.
*
* @param string $username
* @param string $oldPassword
* @param string $newPassword
*
* @return void
* @throws InvalidCredentialsException
* @throws AdminBannedException
*/
public function resetPassword(string $username, string $oldPassword, string $newPassword)
{
$user = $this->loadByCredentials($username, $oldPassword);
$hashedNewPassword = $this->passwordHasherFactory->buildDefault()->hash($newPassword);
$user->setPassword($hashedNewPassword);
$this->userRepository->save($user);
}
/**
* Returns whether there is an authenticated user.
*
* @return boolean
*/
public function isAuthenticated() : bool
{
$segment = $this->session->getSegment(__CLASS__);
$user = $segment->get('auth');
return $user !== null;
}
/**
* Returns the currently authenticated user.
*
* @return IAdmin
* @throws NotAuthenticatedException
*/
public function getAuthenticatedUser() : IAdmin
{
$segment = $this->session->getSegment(__CLASS__);
$user = $segment->get('auth');
if (!$user) {
throw NotAuthenticatedException::format('No user is authenticated');
}
return $user;
}
/**
* Returns whether the currently authenticated user has the
* supplied permissions.
*
* @param IPermission[] $permissions
*
* @return boolean
*/
public function isAuthorized(array $permissions) : bool
{
InvalidArgumentException::verifyAllInstanceOf(__METHOD__, 'permissions', $permissions, IPermission::class);
if (!$this->isAuthenticated()) {
return false;
}
$user = $this->getAuthenticatedUser();
if ($user->isBanned()) {
return false;
}
if ($user->isSuperUser()) {
return true;
}
$userPermissions = $this->getUserPermissions();
foreach ($permissions as $permission) {
if (!isset($userPermissions[$permission->getName()])) {
return false;
}
}
return true;
}
/**
* Verifies whether the currently authenticated user has the supplied
* permissions.
*
* @param IPermission[] $permissions
*
* @return void
* @throws AdminForbiddenException
* @throws NotAuthenticatedException
* @throws AdminBannedException
*/
public function verifyAuthorized(array $permissions)
{
$user = $this->getAuthenticatedUser();
if (!$this->isAuthorized($permissions)) {
throw new AdminForbiddenException($user, $permissions);
}
}
/**
* @return IPermission[]
*/
public function getUserPermissions() : array
{
if ($this->currentUsersPermissions === null) {
$this->currentUsersPermissions = Role::collection(
$this->roleRepository->getAllById($this->getAuthenticatedUser()->getRoleIds()->asArray())
)->selectMany(function (Role $role) {
return $role->getPermissions();
})->indexBy(function (IPermission $permission) {
return $permission->getName();
})->asArray();
}
return $this->currentUsersPermissions;
}
/**
* @inheritdoc
*/
public function getIocContainer() : IIocContainer
{
return $this->iocContainer;
}
/**
* @inheritdoc
*/
public function getEventDispatcher() : IEventDispatcher
{
return $this->iocContainer->get(IEventDispatcher::class);
}
}