memories/lib/Command/Index.php

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<?php
declare(strict_types=1);
/**
* @copyright Copyright (c) 2022, Varun Patil <radialapps@gmail.com>
* @author Varun Patil <radialapps@gmail.com>
* @license AGPL-3.0-or-later
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* 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
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
namespace OCA\Memories\Command;
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use OCA\Files_External\Service\GlobalStoragesService;
use OCA\Memories\Db\TimelineWrite;
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use OCP\Encryption\IManager;
use OCP\Files\File;
use OCP\Files\Folder;
use OCP\Files\IRootFolder;
use OCP\Files\StorageNotAvailableException;
use OCP\IConfig;
use OCP\IDBConnection;
use OCP\IPreview;
use OCP\IUser;
use OCP\IUserManager;
use Psr\Container\ContainerExceptionInterface;
use Psr\Container\ContainerInterface;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
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use Symfony\Component\Console\Output\OutputInterface;
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class Index extends Command
{
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/** @var ?GlobalStoragesService */
protected $globalService;
/** @var int[][] */
protected array $sizes;
protected IUserManager $userManager;
protected IRootFolder $rootFolder;
protected IPreview $previewGenerator;
protected IConfig $config;
protected OutputInterface $output;
protected IManager $encryptionManager;
protected IDBConnection $connection;
protected TimelineWrite $timelineWrite;
// Stats
private int $nProcessed = 0;
private int $nSkipped = 0;
private int $nInvalid = 0;
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public function __construct(
IRootFolder $rootFolder,
IUserManager $userManager,
IPreview $previewGenerator,
IConfig $config,
IManager $encryptionManager,
IDBConnection $connection,
ContainerInterface $container
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) {
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parent::__construct();
$this->userManager = $userManager;
$this->rootFolder = $rootFolder;
$this->previewGenerator = $previewGenerator;
$this->config = $config;
$this->encryptionManager = $encryptionManager;
$this->connection = $connection;
$this->timelineWrite = new TimelineWrite($this->connection);
try {
$this->globalService = $container->get(GlobalStoragesService::class);
} catch (ContainerExceptionInterface $e) {
$this->globalService = null;
}
}
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protected function configure(): void
{
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$this
->setName('memories:index')
->setDescription('Generate photo entries')
->addOption(
'refresh',
'f',
InputOption::VALUE_NONE,
'Refresh existing entries'
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)
->addOption(
'clear',
null,
InputOption::VALUE_NONE,
'Clear existing index before creating a new one (SLOW)'
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)
;
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}
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protected function execute(InputInterface $input, OutputInterface $output): int
{
// Get options and arguments
$refresh = $input->getOption('refresh') ? true : false;
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$clear = $input->getOption('clear') ? true : false;
// Clear index if asked for this
if ($clear && $input->isInteractive()) {
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$output->write('Are you sure you want to clear the existing index? (y/N): ');
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$answer = trim(fgets(STDIN));
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if ('y' !== $answer) {
$output->writeln('Aborting');
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return 1;
}
}
if ($clear) {
$this->timelineWrite->clear();
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$output->writeln('Cleared existing index');
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}
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// Run with the static process
try {
\OCA\Memories\Exif::ensureStaticExiftoolProc();
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return $this->executeWithOpts($output, $refresh);
} catch (\Exception $e) {
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error_log('FATAL: '.$e->getMessage());
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return 1;
} finally {
\OCA\Memories\Exif::closeStaticExiftoolProc();
}
}
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protected function executeWithOpts(OutputInterface $output, bool &$refresh): int
{
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// Refuse to run without exiftool
if (!$this->testExif()) {
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error_log('FATAL: exiftool could not be executed or test failed');
error_log('Make sure you have perl 5 installed in PATH');
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return 1;
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}
// Time measurement
$startTime = microtime(true);
if ($this->encryptionManager->isEnabled()) {
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error_log('FATAL: Encryption is enabled. Aborted.');
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return 1;
}
$this->output = $output;
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$this->userManager->callForSeenUsers(function (IUser &$user) use (&$refresh) {
$this->generateUserEntries($user, $refresh);
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});
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// Show some stats
$endTime = microtime(true);
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$execTime = (int) (($endTime - $startTime) * 1000) / 1000;
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$nTotal = $this->nInvalid + $this->nSkipped + $this->nProcessed;
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$this->output->writeln('==========================================');
$this->output->writeln("Checked {$nTotal} files in {$execTime} sec");
$this->output->writeln($this->nInvalid.' not valid media items');
$this->output->writeln($this->nSkipped.' skipped because unmodified');
$this->output->writeln($this->nProcessed.' (re-)processed');
$this->output->writeln('==========================================');
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return 0;
}
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/** Make sure exiftool is available */
private function testExif()
{
$testfile = __DIR__.'/../../exiftest.jpg';
$stream = fopen($testfile, 'r');
if (!$stream) {
error_log("Couldn't open Exif test file {$testfile}");
return false;
}
$exif = null;
try {
$exif = \OCA\Memories\Exif::getExifFromStream($stream);
} catch (\Exception $e) {
error_log("Couldn't read Exif data from test file: ".$e->getMessage());
return false;
} finally {
fclose($stream);
}
if (!$exif) {
error_log('Got blank Exif data from test file');
return false;
}
if ('2004:08:31 19:52:58' !== $exif['DateTimeOriginal']) {
error_log('Got unexpected Exif data from test file');
return false;
}
return true;
}
private function generateUserEntries(IUser &$user, bool &$refresh): void
{
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\OC_Util::tearDownFS();
\OC_Util::setupFS($user->getUID());
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$uid = $user->getUID();
$userFolder = $this->rootFolder->getUserFolder($uid);
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$this->parseFolder($userFolder, $refresh);
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}
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private function parseFolder(Folder &$folder, bool &$refresh): void
{
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try {
$folderPath = $folder->getPath();
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// Respect the '.nomedia' file. If present don't traverse the folder
if ($folder->nodeExists('.nomedia')) {
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$this->output->writeln('Skipping folder '.$folderPath);
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return;
}
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$this->output->writeln('Scanning folder '.$folderPath);
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$nodes = $folder->getDirectoryListing();
foreach ($nodes as &$node) {
if ($node instanceof Folder) {
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$this->parseFolder($node, $refresh);
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} elseif ($node instanceof File) {
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$this->parseFile($node, $refresh);
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}
}
} catch (StorageNotAvailableException $e) {
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$this->output->writeln(sprintf(
'<error>Storage for folder folder %s is not available: %s</error>',
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$folder->getPath(),
$e->getHint()
));
}
}
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private function parseFile(File &$file, bool &$refresh): void
{
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$res = $this->timelineWrite->processFile($file, $refresh);
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if (2 === $res) {
++$this->nProcessed;
} elseif (1 === $res) {
++$this->nSkipped;
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} else {
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++$this->nInvalid;
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}
}
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}