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<?php |
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declare(strict_types=1); |
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/* For licensing terms, see /license.txt */ |
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namespace Chamilo\CoreBundle\Security\Authorization\Voter; |
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use Chamilo\CoreBundle\Entity\Session; |
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use Chamilo\CoreBundle\Entity\User; |
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use Chamilo\CoreBundle\Settings\SettingsManager; |
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use Symfony\Bundle\SecurityBundle\Security; |
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use Symfony\Component\Security\Core\Authentication\Token\TokenInterface; |
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use Symfony\Component\Security\Core\Authorization\Voter\Voter; |
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use Symfony\Component\Security\Core\User\UserInterface; |
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/** |
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* @todo remove legacy code. |
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* |
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* @extends Voter<'VIEW'|'EDIT'|'DELETE', Session> |
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*/ |
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class SessionVoter extends Voter |
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{ |
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public const VIEW = 'VIEW'; |
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public const EDIT = 'EDIT'; |
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public const DELETE = 'DELETE'; |
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public function __construct( |
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private readonly Security $security, |
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private readonly SettingsManager $settingsManager |
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) {} |
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protected function supports(string $attribute, $subject): bool |
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{ |
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$options = [ |
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self::VIEW, |
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self::EDIT, |
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self::DELETE, |
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]; |
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return $subject instanceof Session && \in_array($attribute, $options, true); |
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} |
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/** |
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* Check if user has access to a session. |
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* |
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* {@inheritdoc} |
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*/ |
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protected function voteOnAttribute(string $attribute, $subject, TokenInterface $token): bool |
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{ |
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/** @var User $user */ |
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$user = $token->getUser(); |
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// Make sure there is a user object (i.e. that the user is logged in) |
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if (!$user instanceof UserInterface) { |
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return false; |
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} |
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// Admins have access to everything. |
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if ($this->security->isGranted('ROLE_ADMIN')) { |
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return true; |
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} |
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// Checks if the current course was set up |
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// $session->getCurrentCourse() is set in the class CidReqListener. |
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/** @var Session $session */ |
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$session = $subject; |
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$currentCourse = $session->getCurrentCourse(); |
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// Course checks. |
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if ($currentCourse && $currentCourse->isHidden()) { |
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return false; |
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} |
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switch ($attribute) { |
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case self::VIEW: |
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// @todo improve performance. |
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$userIsGeneralCoach = $session->hasUserAsGeneralCoach($user); |
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if (null === $currentCourse) { |
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$userIsStudent = $session->getSessionRelCourseByUser($user, Session::STUDENT)->count() > 0; |
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$userIsCourseCoach = $session->hasCoachInCourseList($user); // The current course will be checked in CourseVoter. |
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} else { |
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$userIsCourseCoach = $session->hasCourseCoachInCourse($user, $currentCourse); |
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$userIsStudent = $session->hasUserInCourse($user, $currentCourse, Session::STUDENT); |
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} |
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$visibilityForUser = $session->setAccessVisibilityByUser($user); |
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if ($userIsStudent && Session::LIST_ONLY == $visibilityForUser) { |
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return false; |
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} |
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if ($userIsGeneralCoach || $userIsCourseCoach) { |
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$user->addRole(ResourceNodeVoter::ROLE_CURRENT_COURSE_SESSION_TEACHER); |
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} elseif ($userIsStudent) { // Student access. |
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$user->addRole(ResourceNodeVoter::ROLE_CURRENT_COURSE_SESSION_STUDENT); |
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} |
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if ( |
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($userIsGeneralCoach || $userIsCourseCoach || $userIsStudent) |
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&& $visibilityForUser != Session::INVISIBLE |
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) { |
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return true; |
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} |
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return false; |
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case self::EDIT: |
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case self::DELETE: |
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$canEdit = $this->canEditSession($user, $session, false); |
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if ($canEdit) { |
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$user->addRole(ResourceNodeVoter::ROLE_CURRENT_COURSE_SESSION_TEACHER); |
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return true; |
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} |
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return false; |
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} |
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// User don't have access to the session |
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return false; |
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} |
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private function canEditSession(User $user, Session $session, bool $checkSession = true): bool |
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{ |
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if (!$this->allowToManageSessions()) { |
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return false; |
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} |
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if ($this->security->isGranted('ROLE_ADMIN') && $this->allowed($user, $session)) { |
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return true; |
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} |
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if ($checkSession) { |
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return $this->allowed($user, $session); |
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} |
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return true; |
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} |
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private function allowToManageSessions(): bool |
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{ |
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if ($this->allowManageAllSessions()) { |
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return true; |
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} |
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$setting = $this->settingsManager->getSetting('session.allow_teachers_to_create_sessions'); |
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return 'true' === $setting && $this->security->isGranted('ROLE_TEACHER'); |
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} |
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private function allowManageAllSessions(): bool |
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{ |
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return $this->security->isGranted('ROLE_ADMIN') || $this->security->isGranted('ROLE_SESSION_MANAGER'); |
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} |
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private function allowed(User $user, Session $session): bool |
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{ |
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if ($this->security->isGranted('ROLE_ADMIN')) { |
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return true; |
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} |
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if ($this->security->isGranted('ROLE_SESSION_MANAGER') |
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&& 'true' !== $this->settingsManager->getSetting('session.allow_session_admins_to_manage_all_sessions') |
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&& !$session->hasUserAsSessionAdmin($user) |
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) { |
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return false; |
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} |
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if ($this->security->isGranted('ROLE_TEACHER') |
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&& 'true' === $this->settingsManager->getSetting('session.allow_teachers_to_create_sessions') |
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&& !$session->hasUserAsGeneralCoach($user) |
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) { |
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return false; |
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} |
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return true; |
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} |
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} |
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chamilo /
chamilo-lms
