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<?php |
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declare(strict_types=1); |
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namespace Application\Service\Exporter; |
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use Application\Enum\ExportFormat; |
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use Application\Model\Export; |
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use Application\Model\User; |
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use Application\Repository\CardRepository; |
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use Application\Repository\ExportRepository; |
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use Application\Service\MessageQueuer; |
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use Ecodev\Felix\Service\Mailer; |
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use InvalidArgumentException; |
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use Throwable; |
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class Exporter |
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{ |
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public function __construct( |
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private readonly ExportRepository $exportRepository, |
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private readonly CardRepository $cardRepository, |
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private readonly MessageQueuer $messageQueuer, |
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private readonly Mailer $mailer, |
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private readonly Writer $zip, |
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private readonly Writer $pptx, |
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private readonly Writer $csv, |
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private readonly string $phpPath, |
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1 |
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) {} |
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/** |
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* Export asynchronously in a separate process. |
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* |
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* This should be the preferred way to do big export |
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*/ |
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public function exportAsync(Export $export): void |
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{ |
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$args = [ |
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realpath('bin/export.php'), |
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$export->getId(), |
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]; |
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$escapedArgs = array_map('escapeshellarg', $args); |
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// Forward SERVER_NAME to CLI command |
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$env = 'SERVER_NAME=' . escapeshellarg(getenv('SERVER_NAME')); |
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$cmd = $env . ' ' . escapeshellcmd($this->phpPath) . ' ' . implode(' ', $escapedArgs) . ' > /dev/null 2>&1 &'; |
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exec($cmd); |
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} |
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/** |
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* Export immediately and return the v $export object. |
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* |
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* Because this method will indirectly clear the EntityManager any existing object |
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* before calling this method will become invalid and must be re-fetched from DB. |
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*/ |
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public function export(Export $export): Export |
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{ |
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$writer = $this->getWriter($export); |
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$title = $export->getSite()->value . '-' . $export->getId(); |
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// Poor man's security by using hard-to-guess suffix |
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$suffix = bin2hex(random_bytes(5)); |
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$filename = $title . '-' . $suffix . '.' . $writer->getExtension(); |
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$export->markAsInProgress($filename); |
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_em()->flush(); |
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try { |
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$writer->initialize($export, $title); |
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$this->writeCards($writer, $export); |
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$writer->finalize(); |
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$reloadExport = $this->reloadExport($export); |
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$reloadExport->markAsDone(); |
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} catch (Throwable $throwable) { |
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$reloadExport = $this->reloadExport($export); |
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$reloadExport->markAsErrored($throwable); |
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throw $throwable; |
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} finally { |
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_em()->flush(); |
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} |
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return $reloadExport; |
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} |
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private function reloadExport(Export $export): Export |
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{ |
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User::reloadCurrentUser(); |
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return $this->exportRepository->findOneById($export->getId()); |
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} |
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/** |
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* Export immediately and send an email to the export creator. |
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* |
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* This must only be used via CLI, because export might be very long (several minutes) |
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* and the email is sent synchronously |
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*/ |
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public function exportAndSendMessage(int $id): void |
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{ |
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/** @var null|Export $export */ |
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$export = $this->exportRepository->findOneById($id); |
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if (!$export) { |
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throw new InvalidArgumentException('Could not find export with ID: ' . $id); |
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} |
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$export = $this->export($export); |
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$user = $export->getCreator(); |
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$message = $this->messageQueuer->queueExportDone($user, $export); |
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$this->mailer->sendMessage($message); |
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} |
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private function getWriter(Export $export): Writer |
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{ |
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return match ($export->getFormat()) { |
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ExportFormat::Zip => $this->zip, |
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ExportFormat::Pptx => $this->pptx, |
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ExportFormat::Csv => $this->csv, |
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}; |
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} |
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/** |
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* Write all cards in small batches to avoid exploding PHP memory. |
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*/ |
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private function writeCards(Writer $writer, Export $export): void |
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{ |
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$lastCardId = 0; |
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while (true) { |
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$cards = $this->cardRepository->getExportCards($export, $lastCardId); |
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// If nothing to process anymore, stop the whole thing |
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if (!$cards) { |
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break; |
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} |
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foreach ($cards as $card) { |
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$writer->write($card); |
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$lastCardId = $card->getId(); |
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} |
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2 |
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_em()->flush(); |
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_em()->clear(); |
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} |
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} |
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} |
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unil-lettres /
dilps-tiresias
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