244 lines
8.3 KiB
PHP
244 lines
8.3 KiB
PHP
<?php
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/**
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*
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*
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* @author Christoph Wurst <christoph@winzerhof-wurst.at>
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* @author Georg Ehrke <oc.list@georgehrke.com>
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* @author Joas Schilling <coding@schilljs.com>
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* @author John Molakvoæ (skjnldsv) <skjnldsv@protonmail.com>
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* @author Roeland Jago Douma <roeland@famdouma.nl>
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* @author Thomas Citharel <nextcloud@tcit.fr>
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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namespace OCA\DAV\Command;
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use OCA\DAV\CalDAV\CalDavBackend;
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use OCA\DAV\CalDAV\Calendar;
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use OCP\IConfig;
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use OCP\IGroupManager;
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use OCP\IL10N;
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use OCP\IUserManager;
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use OCP\Share\IManager as IShareManager;
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use Symfony\Component\Console\Command\Command;
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use Symfony\Component\Console\Input\InputArgument;
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use Symfony\Component\Console\Input\InputInterface;
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use Symfony\Component\Console\Input\InputOption;
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use Symfony\Component\Console\Output\OutputInterface;
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use Symfony\Component\Console\Style\SymfonyStyle;
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class MoveCalendar extends Command {
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/** @var IUserManager */
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private $userManager;
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/** @var IGroupManager */
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private $groupManager;
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/** @var IShareManager */
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private $shareManager;
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/** @var IConfig $config */
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private $config;
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/** @var IL10N */
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private $l10n;
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/** @var SymfonyStyle */
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private $io;
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/** @var CalDavBackend */
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private $calDav;
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public const URI_USERS = 'principals/users/';
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/**
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* @param IUserManager $userManager
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* @param IGroupManager $groupManager
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* @param IShareManager $shareManager
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* @param IConfig $config
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* @param IL10N $l10n
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* @param CalDavBackend $calDav
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*/
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public function __construct(
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IUserManager $userManager,
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IGroupManager $groupManager,
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IShareManager $shareManager,
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IConfig $config,
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IL10N $l10n,
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CalDavBackend $calDav
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) {
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parent::__construct();
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$this->userManager = $userManager;
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$this->groupManager = $groupManager;
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$this->shareManager = $shareManager;
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$this->config = $config;
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$this->l10n = $l10n;
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$this->calDav = $calDav;
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}
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protected function configure() {
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$this
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->setName('dav:move-calendar')
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->setDescription('Move a calendar from an user to another')
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->addArgument('name',
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InputArgument::REQUIRED,
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'Name of the calendar to move')
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->addArgument('sourceuid',
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InputArgument::REQUIRED,
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'User who currently owns the calendar')
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->addArgument('destinationuid',
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InputArgument::REQUIRED,
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'User who will receive the calendar')
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->addOption('force', 'f', InputOption::VALUE_NONE, "Force the migration by removing existing shares and renaming calendars in case of conflicts");
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}
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protected function execute(InputInterface $input, OutputInterface $output): int {
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$userOrigin = $input->getArgument('sourceuid');
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$userDestination = $input->getArgument('destinationuid');
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$this->io = new SymfonyStyle($input, $output);
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if (!$this->userManager->userExists($userOrigin)) {
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throw new \InvalidArgumentException("User <$userOrigin> is unknown.");
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}
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if (!$this->userManager->userExists($userDestination)) {
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throw new \InvalidArgumentException("User <$userDestination> is unknown.");
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}
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$name = $input->getArgument('name');
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$newName = null;
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$calendar = $this->calDav->getCalendarByUri(self::URI_USERS . $userOrigin, $name);
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if (null === $calendar) {
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throw new \InvalidArgumentException("User <$userOrigin> has no calendar named <$name>. You can run occ dav:list-calendars to list calendars URIs for this user.");
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}
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// Calendar already exists
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if ($this->calendarExists($userDestination, $name)) {
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if ($input->getOption('force')) {
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// Try to find a suitable name
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$newName = $this->getNewCalendarName($userDestination, $name);
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// If we didn't find a suitable value after all the iterations, give up
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if ($this->calendarExists($userDestination, $newName)) {
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throw new \InvalidArgumentException("Unable to find a suitable calendar name for <$userDestination> with initial name <$name>.");
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}
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} else {
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throw new \InvalidArgumentException("User <$userDestination> already has a calendar named <$name>.");
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}
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}
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$hadShares = $this->checkShares($calendar, $userOrigin, $userDestination, $input->getOption('force'));
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if ($hadShares) {
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/**
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* Warn that share links have changed if there are shares
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*/
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$this->io->note([
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"Please note that moving calendar " . $calendar['uri'] . " from user <$userOrigin> to <$userDestination> has caused share links to change.",
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"Sharees will need to change \"example.com/remote.php/dav/calendars/uid/" . $calendar['uri'] . "_shared_by_$userOrigin\" to \"example.com/remote.php/dav/calendars/uid/" . $newName ?: $calendar['uri'] . "_shared_by_$userDestination\""
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]);
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}
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$this->calDav->moveCalendar($name, self::URI_USERS . $userOrigin, self::URI_USERS . $userDestination, $newName);
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$this->io->success("Calendar <$name> was moved from user <$userOrigin> to <$userDestination>" . ($newName ? " as <$newName>" : ''));
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return 0;
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}
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/**
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* Check if the calendar exists for user
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*
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* @param string $userDestination
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* @param string $name
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* @return bool
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*/
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protected function calendarExists(string $userDestination, string $name): bool {
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return null !== $this->calDav->getCalendarByUri(self::URI_USERS . $userDestination, $name);
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}
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/**
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* Try to find a suitable new calendar name that
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* doesn't exists for the provided user
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*
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* @param string $userDestination
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* @param string $name
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* @return string
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*/
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protected function getNewCalendarName(string $userDestination, string $name): string {
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$increment = 1;
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$newName = $name . '-' . $increment;
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while ($increment <= 10) {
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$this->io->writeln("Trying calendar name <$newName>", OutputInterface::VERBOSITY_VERBOSE);
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if (!$this->calendarExists($userDestination, $newName)) {
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// New name is good to go
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$this->io->writeln("Found proper new calendar name <$newName>", OutputInterface::VERBOSITY_VERBOSE);
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break;
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}
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$newName = $name . '-' . $increment;
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$increment++;
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}
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return $newName;
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}
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/**
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* Check that moving the calendar won't break shares
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*
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* @param array $calendar
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* @param string $userOrigin
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* @param string $userDestination
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* @param bool $force
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* @return bool had any shares or not
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* @throws \InvalidArgumentException
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*/
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private function checkShares(array $calendar, string $userOrigin, string $userDestination, bool $force = false): bool {
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$shares = $this->calDav->getShares($calendar['id']);
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foreach ($shares as $share) {
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list(, $prefix, $userOrGroup) = explode('/', $share['href'], 3);
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/**
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* Check that user destination is member of the groups which whom the calendar was shared
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* If we ask to force the migration, the share with the group is dropped
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*/
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if ($this->shareManager->shareWithGroupMembersOnly() === true && 'groups' === $prefix && !$this->groupManager->isInGroup($userDestination, $userOrGroup)) {
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if ($force) {
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$this->calDav->updateShares(new Calendar($this->calDav, $calendar, $this->l10n, $this->config), [], ['href' => 'principal:principals/groups/' . $userOrGroup]);
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} else {
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throw new \InvalidArgumentException("User <$userDestination> is not part of the group <$userOrGroup> with whom the calendar <" . $calendar['uri'] . "> was shared. You may use -f to move the calendar while deleting this share.");
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}
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}
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/**
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* Check that calendar isn't already shared with user destination
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*/
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if ($userOrGroup === $userDestination) {
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if ($force) {
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$this->calDav->updateShares(new Calendar($this->calDav, $calendar, $this->l10n, $this->config), [], ['href' => 'principal:principals/users/' . $userOrGroup]);
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} else {
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throw new \InvalidArgumentException("The calendar <" . $calendar['uri'] . "> is already shared to user <$userDestination>.You may use -f to move the calendar while deleting this share.");
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}
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}
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}
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return count($shares) > 0;
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}
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}
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