353 lines
11 KiB
PHP
353 lines
11 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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*
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* @author Bart Visscher <bartv@thisnet.nl>
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* @author Jörn Friedrich Dreyer <jfd@butonic.de>
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* @author martin.mattel@diemattels.at <martin.mattel@diemattels.at>
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* @author Morris Jobke <hey@morrisjobke.de>
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* @author Robin Appelman <robin@icewind.nl>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
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* @author Vincent Petry <pvince81@owncloud.com>
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*
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* @license AGPL-3.0
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*
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* This code 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, version 3,
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* as published by the Free Software Foundation.
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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, version 3,
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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\Files\Command;
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use Doctrine\DBAL\Connection;
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use OC\Core\Command\Base;
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use OC\Core\Command\InterruptedException;
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use OC\ForbiddenException;
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use OCP\Files\NotFoundException;
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use OCP\Files\StorageNotAvailableException;
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use OCP\IDBConnection;
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use OCP\IUserManager;
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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\Helper\Table;
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class Scan extends Base {
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/** @var IUserManager $userManager */
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private $userManager;
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/** @var float */
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protected $execTime = 0;
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/** @var int */
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protected $foldersCounter = 0;
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/** @var int */
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protected $filesCounter = 0;
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public function __construct(IUserManager $userManager) {
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$this->userManager = $userManager;
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parent::__construct();
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}
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protected function configure() {
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parent::configure();
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$this
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->setName('files:scan')
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->setDescription('rescan filesystem')
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->addArgument(
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'user_id',
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InputArgument::OPTIONAL | InputArgument::IS_ARRAY,
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'will rescan all files of the given user(s)'
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)
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->addOption(
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'path',
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'p',
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InputArgument::OPTIONAL,
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'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'
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)
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->addOption(
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'quiet',
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'q',
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InputOption::VALUE_NONE,
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'suppress any output'
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)
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->addOption(
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'verbose',
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'-v|vv|vvv',
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InputOption::VALUE_NONE,
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'verbose the output'
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)
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->addOption(
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'all',
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null,
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InputOption::VALUE_NONE,
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'will rescan all files of all known users'
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)->addOption(
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'unscanned',
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null,
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InputOption::VALUE_NONE,
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'only scan files which are marked as not fully scanned'
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);
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}
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public function checkScanWarning($fullPath, OutputInterface $output) {
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$normalizedPath = basename(\OC\Files\Filesystem::normalizePath($fullPath));
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$path = basename($fullPath);
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if ($normalizedPath !== $path) {
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$output->writeln("\t<error>Entry \"" . $fullPath . '" will not be accessible due to incompatible encoding</error>');
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}
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}
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protected function scanFiles($user, $path, $verbose, OutputInterface $output, $backgroundScan = false) {
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$connection = $this->reconnectToDatabase($output);
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$scanner = new \OC\Files\Utils\Scanner($user, $connection, \OC::$server->getLogger());
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# check on each file/folder if there was a user interrupt (ctrl-c) and throw an exception
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# printout and count
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if ($verbose) {
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$scanner->listen('\OC\Files\Utils\Scanner', 'scanFile', function ($path) use ($output) {
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$output->writeln("\tFile <info>$path</info>");
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$this->filesCounter += 1;
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if ($this->hasBeenInterrupted()) {
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throw new InterruptedException();
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}
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});
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$scanner->listen('\OC\Files\Utils\Scanner', 'scanFolder', function ($path) use ($output) {
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$output->writeln("\tFolder <info>$path</info>");
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$this->foldersCounter += 1;
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if ($this->hasBeenInterrupted()) {
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throw new InterruptedException();
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}
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});
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$scanner->listen('\OC\Files\Utils\Scanner', 'StorageNotAvailable', function (StorageNotAvailableException $e) use ($output) {
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$output->writeln("Error while scanning, storage not available (" . $e->getMessage() . ")");
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});
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# count only
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} else {
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$scanner->listen('\OC\Files\Utils\Scanner', 'scanFile', function () use ($output) {
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$this->filesCounter += 1;
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if ($this->hasBeenInterrupted()) {
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throw new InterruptedException();
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}
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});
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$scanner->listen('\OC\Files\Utils\Scanner', 'scanFolder', function () use ($output) {
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$this->foldersCounter += 1;
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if ($this->hasBeenInterrupted()) {
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throw new InterruptedException();
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}
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});
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}
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$scanner->listen('\OC\Files\Utils\Scanner', 'scanFile', function ($path) use ($output) {
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$this->checkScanWarning($path, $output);
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});
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$scanner->listen('\OC\Files\Utils\Scanner', 'scanFolder', function ($path) use ($output) {
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$this->checkScanWarning($path, $output);
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});
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try {
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if ($backgroundScan) {
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$scanner->backgroundScan($path);
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} else {
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$scanner->scan($path);
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}
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} catch (ForbiddenException $e) {
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$output->writeln("<error>Home storage for user $user not writable</error>");
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$output->writeln("Make sure you're running the scan command only as the user the web server runs as");
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} catch (InterruptedException $e) {
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# exit the function if ctrl-c has been pressed
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$output->writeln('Interrupted by user');
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} catch (NotFoundException $e) {
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$output->writeln('<error>Path not found: ' . $e->getMessage() . '</error>');
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} catch (\Exception $e) {
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$output->writeln('<error>Exception during scan: ' . $e->getMessage() . '</error>');
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$output->writeln('<error>' . $e->getTraceAsString() . '</error>');
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}
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}
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protected function execute(InputInterface $input, OutputInterface $output) {
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$inputPath = $input->getOption('path');
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if ($inputPath) {
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$inputPath = '/' . trim($inputPath, '/');
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list (, $user,) = explode('/', $inputPath, 3);
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$users = array($user);
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} else if ($input->getOption('all')) {
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$users = $this->userManager->search('');
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} else {
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$users = $input->getArgument('user_id');
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}
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# no messaging level option means: no full printout but statistics
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# $quiet means no print at all
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# $verbose means full printout including statistics
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# -q -v full stat
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# 0 0 no yes
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# 0 1 yes yes
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# 1 -- no no (quiet overrules verbose)
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$verbose = $input->getOption('verbose');
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$quiet = $input->getOption('quiet');
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# restrict the verbosity level to VERBOSITY_VERBOSE
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if ($output->getVerbosity() > OutputInterface::VERBOSITY_VERBOSE) {
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$output->setVerbosity(OutputInterface::VERBOSITY_VERBOSE);
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}
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if ($quiet) {
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$verbose = false;
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}
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# check quantity of users to be process and show it on the command line
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$users_total = count($users);
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if ($users_total === 0) {
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$output->writeln("<error>Please specify the user id to scan, \"--all\" to scan for all users or \"--path=...\"</error>");
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return;
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} else {
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if ($users_total > 1) {
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$output->writeln("\nScanning files for $users_total users");
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}
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}
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$this->initTools();
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$user_count = 0;
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foreach ($users as $user) {
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if (is_object($user)) {
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$user = $user->getUID();
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}
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$path = $inputPath ? $inputPath : '/' . $user;
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$user_count += 1;
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if ($this->userManager->userExists($user)) {
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# add an extra line when verbose is set to optical separate users
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if ($verbose) {
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$output->writeln("");
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}
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$output->writeln("Starting scan for user $user_count out of $users_total ($user)");
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# full: printout data if $verbose was set
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$this->scanFiles($user, $path, $verbose, $output, $input->getOption('unscanned'));
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} else {
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$output->writeln("<error>Unknown user $user_count $user</error>");
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}
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# check on each user if there was a user interrupt (ctrl-c) and exit foreach
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if ($this->hasBeenInterrupted()) {
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break;
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}
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}
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# stat: printout statistics if $quiet was not set
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if (!$quiet) {
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$this->presentStats($output);
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}
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}
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/**
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* Initialises some useful tools for the Command
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*/
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protected function initTools() {
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// Start the timer
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$this->execTime = -microtime(true);
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// Convert PHP errors to exceptions
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set_error_handler([$this, 'exceptionErrorHandler'], E_ALL);
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}
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/**
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* Processes PHP errors as exceptions in order to be able to keep track of problems
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*
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* @see https://secure.php.net/manual/en/function.set-error-handler.php
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*
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* @param int $severity the level of the error raised
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* @param string $message
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* @param string $file the filename that the error was raised in
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* @param int $line the line number the error was raised
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*
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* @throws \ErrorException
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*/
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public function exceptionErrorHandler($severity, $message, $file, $line) {
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if (!(error_reporting() & $severity)) {
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// This error code is not included in error_reporting
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return;
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}
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throw new \ErrorException($message, 0, $severity, $file, $line);
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}
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/**
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* @param OutputInterface $output
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*/
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protected function presentStats(OutputInterface $output) {
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// Stop the timer
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$this->execTime += microtime(true);
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$output->writeln("");
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$headers = [
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'Folders', 'Files', 'Elapsed time'
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];
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$this->showSummary($headers, null, $output);
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}
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/**
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* Shows a summary of operations
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*
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* @param string[] $headers
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* @param string[] $rows
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* @param OutputInterface $output
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*/
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protected function showSummary($headers, $rows, OutputInterface $output) {
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$niceDate = $this->formatExecTime();
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if (!$rows) {
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$rows = [
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$this->foldersCounter,
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$this->filesCounter,
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$niceDate,
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];
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}
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$table = new Table($output);
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$table
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->setHeaders($headers)
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->setRows([$rows]);
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$table->render();
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}
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/**
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* Formats microtime into a human readable format
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*
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* @return string
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*/
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protected function formatExecTime() {
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list($secs, $tens) = explode('.', sprintf("%.1f", ($this->execTime)));
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# if you want to have microseconds add this: . '.' . $tens;
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return date('H:i:s', $secs);
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}
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/**
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* @return \OCP\IDBConnection
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*/
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protected function reconnectToDatabase(OutputInterface $output) {
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/** @var Connection | IDBConnection $connection */
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$connection = \OC::$server->getDatabaseConnection();
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try {
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$connection->close();
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} catch (\Exception $ex) {
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$output->writeln("<info>Error while disconnecting from database: {$ex->getMessage()}</info>");
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}
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while (!$connection->isConnected()) {
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try {
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$connection->connect();
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} catch (\Exception $ex) {
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$output->writeln("<info>Error while re-connecting to database: {$ex->getMessage()}</info>");
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sleep(60);
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}
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}
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return $connection;
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}
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}
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