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<?php
/**
* SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
namespace OCA\DAV\Command;
use OCA\DAV\CalDAV\CalDavBackend;
use OCA\DAV\CalDAV\Calendar;
use OCP\IConfig;
use OCP\IGroupManager;
use OCP\IL10N;
use OCP\IUserManager;
use OCP\Share\IManager as IShareManager;
use Psr\Log\LoggerInterface;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Style\SymfonyStyle;
class MoveCalendar extends Command {
private ?SymfonyStyle $io = null;
public const URI_USERS = 'principals/users/';
public function __construct(
private IUserManager $userManager,
private IGroupManager $groupManager,
private IShareManager $shareManager,
private IConfig $config,
private IL10N $l10n,
private CalDavBackend $calDav,
private LoggerInterface $logger,
) {
parent::__construct();
}
protected function configure(): void {
$this
->setName('dav:move-calendar')
->setDescription('Move a calendar from an user to another')
->addArgument('name',
InputArgument::REQUIRED,
'Name of the calendar to move')
->addArgument('sourceuid',
InputArgument::REQUIRED,
'User who currently owns the calendar')
->addArgument('destinationuid',
InputArgument::REQUIRED,
'User who will receive the calendar')
->addOption('force', 'f', InputOption::VALUE_NONE, 'Force the migration by removing existing shares and renaming calendars in case of conflicts');
}
protected function execute(InputInterface $input, OutputInterface $output): int {
$userOrigin = $input->getArgument('sourceuid');
$userDestination = $input->getArgument('destinationuid');
$this->io = new SymfonyStyle($input, $output);
if (!$this->userManager->userExists($userOrigin)) {
throw new \InvalidArgumentException("User <$userOrigin> is unknown.");
}
if (!$this->userManager->userExists($userDestination)) {
throw new \InvalidArgumentException("User <$userDestination> is unknown.");
}
$name = $input->getArgument('name');
$newName = null;
$calendar = $this->calDav->getCalendarByUri(self::URI_USERS . $userOrigin, $name);
if ($calendar === null) {
throw new \InvalidArgumentException("User <$userOrigin> has no calendar named <$name>. You can run occ dav:list-calendars to list calendars URIs for this user.");
}
// Calendar already exists
if ($this->calendarExists($userDestination, $name)) {
if ($input->getOption('force')) {
// Try to find a suitable name
$newName = $this->getNewCalendarName($userDestination, $name);
// If we didn't find a suitable value after all the iterations, give up
if ($this->calendarExists($userDestination, $newName)) {
throw new \InvalidArgumentException("Unable to find a suitable calendar name for <$userDestination> with initial name <$name>.");
}
} else {
throw new \InvalidArgumentException("User <$userDestination> already has a calendar named <$name>.");
}
}
$hadShares = $this->checkShares($calendar, $userOrigin, $userDestination, $input->getOption('force'));
if ($hadShares) {
/**
* Warn that share links have changed if there are shares
*/
$this->io->note([
'Please note that moving calendar ' . $calendar['uri'] . " from user <$userOrigin> to <$userDestination> has caused share links to change.",
'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\""
]);
}
$this->calDav->moveCalendar($name, self::URI_USERS . $userOrigin, self::URI_USERS . $userDestination, $newName);
$this->io->success("Calendar <$name> was moved from user <$userOrigin> to <$userDestination>" . ($newName ? " as <$newName>" : ''));
return self::SUCCESS;
}
/**
* Check if the calendar exists for user
*/
protected function calendarExists(string $userDestination, string $name): bool {
return $this->calDav->getCalendarByUri(self::URI_USERS . $userDestination, $name) !== null;
}
/**
* Try to find a suitable new calendar name that
* doesn't exist for the provided user
*/
protected function getNewCalendarName(string $userDestination, string $name): string {
$increment = 1;
$newName = $name . '-' . $increment;
while ($increment <= 10) {
$this->io->writeln("Trying calendar name <$newName>", OutputInterface::VERBOSITY_VERBOSE);
if (!$this->calendarExists($userDestination, $newName)) {
// New name is good to go
$this->io->writeln("Found proper new calendar name <$newName>", OutputInterface::VERBOSITY_VERBOSE);
break;
}
$newName = $name . '-' . $increment;
$increment++;
}
return $newName;
}
/**
* Check that moving the calendar won't break shares
*
* @return bool had any shares or not
* @throws \InvalidArgumentException
*/
private function checkShares(array $calendar, string $userOrigin, string $userDestination, bool $force = false): bool {
$shares = $this->calDav->getShares($calendar['id']);
foreach ($shares as $share) {
[, $prefix, $userOrGroup] = explode('/', $share['href'], 3);
/**
* Check that user destination is member of the groups which whom the calendar was shared
* If we ask to force the migration, the share with the group is dropped
*/
if ($this->shareManager->shareWithGroupMembersOnly() === true && $prefix === 'groups' && !$this->groupManager->isInGroup($userDestination, $userOrGroup)) {
if ($force) {
$this->calDav->updateShares(new Calendar($this->calDav, $calendar, $this->l10n, $this->config, $this->logger), [], ['principal:principals/groups/' . $userOrGroup]);
} else {
throw new \InvalidArgumentException("User <$userDestination> is not part of the group <$userOrGroup> with whom the calendar <" . $calendar['uri'] . '> was shared. You may use -f to move the calendar while deleting this share.');
}
}
/**
* Check that calendar isn't already shared with user destination
*/
if ($userOrGroup === $userDestination) {
if ($force) {
$this->calDav->updateShares(new Calendar($this->calDav, $calendar, $this->l10n, $this->config, $this->logger), [], ['principal:principals/users/' . $userOrGroup]);
} else {
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.");
}
}
}
return count($shares) > 0;
}
}
|
