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nextcloud_server/apps/files/lib/Command/Scan.php
Côme Chilliet f664d42bb0 Add an error counter
Signed-off-by: Côme Chilliet <come.chilliet@nextcloud.com>
2023-05-09 16:02:50 +00:00

329 lines
11 KiB
PHP

<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Bart Visscher <bartv@thisnet.nl>
* @author Blaok <i@blaok.me>
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
* @author Daniel Kesselberg <mail@danielkesselberg.de>
* @author J0WI <J0WI@users.noreply.github.com>
* @author Joas Schilling <coding@schilljs.com>
* @author Joel S <joel.devbox@protonmail.com>
* @author Jörn Friedrich Dreyer <jfd@butonic.de>
* @author martin.mattel@diemattels.at <martin.mattel@diemattels.at>
* @author Robin Appelman <robin@icewind.nl>
* @author Roeland Jago Douma <roeland@famdouma.nl>
* @author Thomas Müller <thomas.mueller@tmit.eu>
* @author Vincent Petry <vincent@nextcloud.com>
*
* @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\Files\Command;
use OC\Core\Command\Base;
use OC\Core\Command\InterruptedException;
use OC\DB\Connection;
use OC\DB\ConnectionAdapter;
use OCP\Files\File;
use OC\ForbiddenException;
use OC\Metadata\MetadataManager;
use OCP\EventDispatcher\IEventDispatcher;
use OCP\Files\IRootFolder;
use OCP\Files\Mount\IMountPoint;
use OCP\Files\NotFoundException;
use OCP\Files\StorageNotAvailableException;
use OCP\IUserManager;
use Psr\Log\LoggerInterface;
use Symfony\Component\Console\Helper\Table;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\OutputInterface;
class Scan extends Base {
private IUserManager $userManager;
protected float $execTime = 0;
protected int $foldersCounter = 0;
protected int $filesCounter = 0;
protected int $errorsCounter = 0;
private IRootFolder $root;
private MetadataManager $metadataManager;
public function __construct(
IUserManager $userManager,
IRootFolder $rootFolder,
MetadataManager $metadataManager
) {
$this->userManager = $userManager;
parent::__construct();
$this->root = $rootFolder;
$this->metadataManager = $metadataManager;
}
protected function configure() {
parent::configure();
$this
->setName('files:scan')
->setDescription('rescan filesystem')
->addArgument(
'user_id',
InputArgument::OPTIONAL | InputArgument::IS_ARRAY,
'will rescan all files of the given user(s)'
)
->addOption(
'path',
'p',
InputArgument::OPTIONAL,
'limit rescan to this path, eg. --path="/alice/files/Music", the user_id is determined by the path and the user_id parameter and --all are ignored'
)
->addOption(
'generate-metadata',
null,
InputOption::VALUE_NONE,
'Generate metadata for all scanned files'
)
->addOption(
'all',
null,
InputOption::VALUE_NONE,
'will rescan all files of all known users'
)->addOption(
'unscanned',
null,
InputOption::VALUE_NONE,
'only scan files which are marked as not fully scanned'
)->addOption(
'shallow',
null,
InputOption::VALUE_NONE,
'do not scan folders recursively'
)->addOption(
'home-only',
null,
InputOption::VALUE_NONE,
'only scan the home storage, ignoring any mounted external storage or share'
);
}
protected function scanFiles(string $user, string $path, bool $scanMetadata, OutputInterface $output, bool $backgroundScan = false, bool $recursive = true, bool $homeOnly = false): void {
$connection = $this->reconnectToDatabase($output);
$scanner = new \OC\Files\Utils\Scanner(
$user,
new ConnectionAdapter($connection),
\OC::$server->get(IEventDispatcher::class),
\OC::$server->get(LoggerInterface::class)
);
# check on each file/folder if there was a user interrupt (ctrl-c) and throw an exception
$scanner->listen('\OC\Files\Utils\Scanner', 'scanFile', function (string $path) use ($output, $scanMetadata) {
$output->writeln("\tFile\t<info>$path</info>", OutputInterface::VERBOSITY_VERBOSE);
++$this->filesCounter;
$this->abortIfInterrupted();
if ($scanMetadata) {
$node = $this->root->get($path);
if ($node instanceof File) {
$this->metadataManager->generateMetadata($node, false);
}
}
});
$scanner->listen('\OC\Files\Utils\Scanner', 'scanFolder', function ($path) use ($output) {
$output->writeln("\tFolder\t<info>$path</info>", OutputInterface::VERBOSITY_VERBOSE);
++$this->foldersCounter;
$this->abortIfInterrupted();
});
$scanner->listen('\OC\Files\Utils\Scanner', 'StorageNotAvailable', function (StorageNotAvailableException $e) use ($output) {
$output->writeln('Error while scanning, storage not available (' . $e->getMessage() . ')', OutputInterface::VERBOSITY_VERBOSE);
++$this->errorsCounter;
});
$scanner->listen('\OC\Files\Utils\Scanner', 'normalizedNameMismatch', function ($fullPath) use ($output) {
$output->writeln("\t<error>Entry \"" . $fullPath . '" will not be accessible due to incompatible encoding</error>');
++$this->errorsCounter;
});
try {
if ($backgroundScan) {
$scanner->backgroundScan($path);
} else {
$scanner->scan($path, $recursive, $homeOnly ? [$this, 'filterHomeMount'] : null);
}
} catch (ForbiddenException $e) {
$output->writeln("<error>Home storage for user $user not writable or 'files' subdirectory missing</error>");
$output->writeln('Make sure you\'re running the scan command only as the user the web server runs as');
++$this->errorsCounter;
} catch (InterruptedException $e) {
# exit the function if ctrl-c has been pressed
$output->writeln('Interrupted by user');
} catch (NotFoundException $e) {
$output->writeln('<error>Path not found: ' . $e->getMessage() . '</error>');
++$this->errorsCounter;
} catch (\Exception $e) {
$output->writeln('<error>Exception during scan: ' . $e->getMessage() . '</error>');
$output->writeln('<error>' . $e->getTraceAsString() . '</error>');
++$this->errorsCounter;
}
}
public function filterHomeMount(IMountPoint $mountPoint) {
// any mountpoint inside '/$user/files/'
return substr_count($mountPoint->getMountPoint(), '/') <= 3;
}
protected function execute(InputInterface $input, OutputInterface $output): int {
$inputPath = $input->getOption('path');
if ($inputPath) {
$inputPath = '/' . trim($inputPath, '/');
[, $user,] = explode('/', $inputPath, 3);
$users = [$user];
} elseif ($input->getOption('all')) {
$users = $this->userManager->search('');
} else {
$users = $input->getArgument('user_id');
}
# check quantity of users to be process and show it on the command line
$users_total = count($users);
if ($users_total === 0) {
$output->writeln('<error>Please specify the user id to scan, --all to scan for all users or --path=...</error>');
return 1;
}
$this->initTools($output);
$user_count = 0;
foreach ($users as $user) {
if (is_object($user)) {
$user = $user->getUID();
}
$path = $inputPath ? $inputPath : '/' . $user;
++$user_count;
if ($this->userManager->userExists($user)) {
$output->writeln("Starting scan for user $user_count out of $users_total ($user)");
$this->scanFiles($user, $path, $input->getOption('generate-metadata'), $output, $input->getOption('unscanned'), !$input->getOption('shallow'), $input->getOption('home-only'));
$output->writeln('', OutputInterface::VERBOSITY_VERBOSE);
} else {
$output->writeln("<error>Unknown user $user_count $user</error>");
$output->writeln('', OutputInterface::VERBOSITY_VERBOSE);
}
try {
$this->abortIfInterrupted();
} catch (InterruptedException $e) {
break;
}
}
$this->presentStats($output);
return 0;
}
/**
* Initialises some useful tools for the Command
*/
protected function initTools(OutputInterface $output) {
// Start the timer
$this->execTime = -microtime(true);
// Convert PHP errors to exceptions
set_error_handler(
fn (int $severity, string $message, string $file, int $line): bool =>
$this->exceptionErrorHandler($output, $severity, $message, $file, $line),
E_ALL
);
}
/**
* Processes PHP errors in order to be able to show them in the output
*
* @see https://www.php.net/manual/en/function.set-error-handler.php
*
* @param int $severity the level of the error raised
* @param string $message
* @param string $file the filename that the error was raised in
* @param int $line the line number the error was raised
*/
public function exceptionErrorHandler(OutputInterface $output, int $severity, string $message, string $file, int $line): bool {
if (($severity === E_DEPRECATED) || ($severity === E_USER_DEPRECATED)) {
// Do not show deprecation warnings
return false;
}
$e = new \ErrorException($message, 0, $severity, $file, $line);
$output->writeln('<error>Error during scan: ' . $e->getMessage() . '</error>');
$output->writeln('<error>' . $e->getTraceAsString() . '</error>', OutputInterface::VERBOSITY_VERY_VERBOSE);
++$this->errorsCounter;
return true;
}
/**
* @param OutputInterface $output
*/
protected function presentStats(OutputInterface $output) {
// Stop the timer
$this->execTime += microtime(true);
$headers = [
'Folders',
'Files',
'Errors',
'Elapsed time',
];
$niceDate = $this->formatExecTime();
$rows = [
$this->foldersCounter,
$this->filesCounter,
$this->errorsCounter,
$niceDate,
];
$table = new Table($output);
$table
->setHeaders($headers)
->setRows([$rows]);
$table->render();
}
/**
* Formats microtime into a human readable format
*
* @return string
*/
protected function formatExecTime() {
$secs = (int)round($this->execTime);
# convert seconds into HH:MM:SS form
return sprintf('%02d:%02d:%02d', (int)($secs / 3600), ((int)($secs / 60) % 60), $secs % 60);
}
protected function reconnectToDatabase(OutputInterface $output): Connection {
/** @var Connection $connection */
$connection = \OC::$server->get(Connection::class);
try {
$connection->close();
} catch (\Exception $ex) {
$output->writeln("<info>Error while disconnecting from database: {$ex->getMessage()}</info>");
}
while (!$connection->isConnected()) {
try {
$connection->connect();
} catch (\Exception $ex) {
$output->writeln("<info>Error while re-connecting to database: {$ex->getMessage()}</info>");
sleep(60);
}
}
return $connection;
}
}