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File name : TimesheetVoter.php

Content :

<?php

/*
 * This file is part of the Kimai time-tracking app.
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace App\Voter;

use App\Entity\Timesheet;
use App\Entity\User;
use App\Security\RolePermissionManager;
use App\Timesheet\LockdownService;
use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
use Symfony\Component\Security\Core\Authorization\Voter\Voter;

/**
 * A voter to check permissions on Timesheets.
 */
final class TimesheetVoter extends Voter
{
    public const VIEW = 'view';
    public const START = 'start';
    public const STOP = 'stop';
    public const EDIT = 'edit';
    public const DELETE = 'delete';
    public const EXPORT = 'export';
    public const VIEW_RATE = 'view_rate';
    public const EDIT_RATE = 'edit_rate';
    public const EDIT_EXPORT = 'edit_export';

/**
     * support rules based on the given $subject (here: Timesheet)
     */
    private const ALLOWED_ATTRIBUTES = [
        self::VIEW,
        self::START,
        self::STOP,
        self::EDIT,
        self::DELETE,
        self::EXPORT,
        self::VIEW_RATE,
        self::EDIT_RATE,
        self::EDIT_EXPORT,
        'edit_billable',
        'duplicate'
    ];

private $permissionManager;
    private $lockdownService;

private $lockdownGrace;
    private $lockdownOverride;
    private $editExported;
    private $now;

public function __construct(RolePermissionManager $permissionManager, LockdownService $lockdownService)
    {
        $this->permissionManager = $permissionManager;
        $this->lockdownService = $lockdownService;
    }

/**
     * @param string $attribute
     * @param mixed $subject
     * @return bool
     */
    protected function supports($attribute, $subject)
    {
        if (!($subject instanceof Timesheet)) {
            return false;
        }

if (!\in_array($attribute, self::ALLOWED_ATTRIBUTES)) {
            return false;
        }

return true;
    }

/**
     * @param string $attribute
     * @param Timesheet $subject
     * @param TokenInterface $token
     * @return bool
     */
    protected function voteOnAttribute($attribute, $subject, TokenInterface $token)
    {
        $user = $token->getUser();

if (!($user instanceof User)) {
            return false;
        }

$permission = '';

switch ($attribute) {
            case self::START:
                if (!$this->canStart($subject)) {
                    return false;
                }
                $permission .= $attribute;
                break;

case self::EDIT:
                if (!$this->canEdit($user, $subject)) {
                    return false;
                }
                $permission .= $attribute;
                break;

case self::DELETE:
                if (!$this->canDelete($user, $subject)) {
                    return false;
                }
                $permission .= $attribute;
                break;

case 'duplicate':
                if (!$this->canDuplicate($user, $subject)) {
                    return false;
                }
                $permission = self::EDIT;
                break;

case self::VIEW_RATE:
            case self::EDIT_RATE:
            case self::STOP:
            case self::VIEW:
            case self::EXPORT:
            case self::EDIT_EXPORT:
            case 'edit_billable':
                $permission .= $attribute;
                break;

default:
                return false;
        }

$permission .= '_';

// extend me for "team" support later on
        if ($subject->getUser()->getId() == $user->getId()) {
            $permission .= 'own';
        } else {
            $permission .= 'other';
        }

$permission .= '_timesheet';

return $this->permissionManager->hasRolePermission($user, $permission);
    }

protected function canStart(Timesheet $timesheet): bool
    {
        // possible improvements for the future:
        // we could check the amount of active entries (maybe slow)
        // if a teamlead starts an entry for another user, check that this user is part of his team (needs to be done for teams)

if (null === $timesheet->getActivity()) {
            return false;
        }

if (null === $timesheet->getProject()) {
            return false;
        }

if (!$timesheet->getActivity()->isVisible() || !$timesheet->getProject()->isVisible()) {
            return false;
        }

if (!$timesheet->getProject()->getCustomer()->isVisible()) {
            return false;
        }

return true;
    }

protected function canEdit(User $user, Timesheet $timesheet): bool
    {
        if (!$this->isAllowedExported($user, $timesheet)) {
            return false;
        }

if (!$this->isAllowedInLockdown($user, $timesheet)) {
            return false;
        }

return true;
    }

protected function canDelete(User $user, Timesheet $timesheet): bool
    {
        if (!$this->isAllowedExported($user, $timesheet)) {
            return false;
        }

if (!$this->isAllowedInLockdown($user, $timesheet)) {
            return false;
        }

return true;
    }

protected function canDuplicate(User $user, Timesheet $timesheet): bool
    {
        if (!$this->isAllowedInLockdown($user, $timesheet)) {
            return false;
        }

return true;
    }

private function isAllowedExported(User $user, Timesheet $timesheet): bool
    {
        if (!$timesheet->isExported()) {
            return true;
        }

if ($this->editExported === null) {
            $this->editExported = $this->permissionManager->hasRolePermission($user, 'edit_exported_timesheet');
        }

return $this->editExported;
    }

private function isAllowedInLockdown(User $user, Timesheet $timesheet): bool
    {
        if (!$this->lockdownService->isLockdownActive()) {
            return true;
        }

if ($this->lockdownOverride === null) {
            $this->lockdownOverride = $this->permissionManager->hasRolePermission($user, 'lockdown_override_timesheet');
        }

if ($this->lockdownOverride) {
            return true;
        }

if ($this->lockdownGrace === null) {
            $this->lockdownGrace = $this->permissionManager->hasRolePermission($user, 'lockdown_grace_timesheet');
        }

if ($this->now === null) {
            $this->now = new \DateTime('now', new \DateTimeZone($user->getTimezone()));
        }

return $this->lockdownService->isEditable($timesheet, $this->now, $this->lockdownGrace);
    }
}

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