owncloud/core

<?php
/**
 * @author Thomas Citharel <tcit@tcit.fr>
 * @author Thomas Müller <thomas.mueller@tmit.eu>
 *
 * @copyright Copyright (c) 2018, ownCloud GmbH
 * @license AGPL-3.0
 *
 * This code is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License, version 3,
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License, version 3,
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 *
 */
namespace OCA\DAV;

use OCA\DAV\CalDAV\BirthdayService;
use OCA\DAV\CalDAV\CalDavBackend;
use OCA\DAV\CardDAV\CardDavBackend;
use OCA\DAV\CardDAV\SyncService;
use OCP\IL10N;
use OCP\IUser;
use OCP\IUserManager;
use OCP\Util;

class HookManager {
    /** @var IUserManager */
    private $userManager;

    /** @var SyncService */
    private $syncService;

    /** @var IUser[] */
    private $usersToDelete;

    /** @var CalDavBackend */
    private $calDav;

    /** @var CardDavBackend */
    private $cardDav;

    /** @var IL10N */
    private $l10n;

    /** @var array */
    private $calendarsToDelete;

    /** @var array */
    private $addressBooksToDelete;

    public function __construct(
        IUserManager $userManager,
        SyncService $syncService,
        CalDavBackend $calDav,
        CardDavBackend $cardDav,
        IL10N $l10n
    ) {
        $this->userManager = $userManager;
        $this->syncService = $syncService;
        $this->calDav = $calDav;
        $this->cardDav = $cardDav;
        $this->l10n = $l10n;
    }

    public function setup() {
        Util::connectHook(
            'OC_User',
            'post_createUser',
            $this,
            'postCreateUser'
        );
        Util::connectHook(
            'OC_User',
            'pre_deleteUser',
            $this,
            'preDeleteUser'
        );
        Util::connectHook(
            'OC_User',
            'post_deleteUser',
            $this,
            'postDeleteUser'
        );
        Util::connectHook(
            'OC_User',
            'changeUser',
            $this,
            'changeUser'
        );
    }

    public function postCreateUser($params) {
        $user = $this->userManager->get($params['uid']);
        $this->syncService->updateUser($user);
    }

    public function preDeleteUser($params) {
        $uid = $params['uid'];
        $this->usersToDelete[$uid] = $this->userManager->get($uid);
        $this->calendarsToDelete = $this->calDav->getUsersOwnCalendars('principals/users/' . $uid);
        $this->addressBooksToDelete = $this->cardDav->getUsersOwnAddressBooks('principals/users/' . $uid);
    }

    public function postDeleteUser($params) {
        $uid = $params['uid'];
        if (isset($this->usersToDelete[$uid])) {
            $this->syncService->deleteUser($this->usersToDelete[$uid]);
        } else {
            // the user wasn't found in the userManager. Assume it was deleted before
            // and try to delete from the syncService if it's the only one.
            $this->syncService->deleteUserByUidIfUnique($uid);  // not interested in the result
        }

        foreach ($this->calendarsToDelete as $calendar) {
            $this->calDav->deleteCalendar($calendar['id']);
        }
        $this->calDav->deleteAllSharesForUser('principals/users/' . $uid);

        foreach ($this->addressBooksToDelete as $addressBook) {
            $this->cardDav->deleteAddressBook($addressBook['id']);
        }
    }

    public function changeUser($params) {
        $user = $params['user'];
        $this->syncService->updateUser($user);
    }

    public function firstLogin(IUser $user = null) {
        if ($user !== null) {
            $principal = 'principals/users/' . $user->getUID();
            $calendars = $this->calDav->getCalendarsForUser($principal);
            if (empty($calendars) || (\count($calendars) === 1 && $calendars[0]['uri'] === BirthdayService::BIRTHDAY_CALENDAR_URI)) {
                try {
                    $this->calDav->createCalendar($principal, 'personal', [
                        '{DAV:}displayname' => $this->l10n->t('Personal'),
                        '{http://apple.com/ns/ical/}calendar-color' => '#041e42']);
                } catch (\Exception $ex) {
                    \OC::$server->getLogger()->logException($ex);
                }
            }
            $books = $this->cardDav->getAddressBooksForUser($principal);
            if (empty($books)) {
                try {
                    $this->cardDav->createAddressBook($principal, 'contacts', [
                        '{DAV:}displayname' => $this->l10n->t('Contacts')]);
                } catch (\Exception $ex) {
                    \OC::$server->getLogger()->logException($ex);
                }
            }
        }
    }
}