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<?php |
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namespace BenTools\MercurePHP\Command; |
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use BenTools\MercurePHP\Configuration\Configuration; |
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use BenTools\MercurePHP\Hub\HubFactory; |
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use BenTools\MercurePHP\Hub\HubFactoryInterface; |
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use Psr\Log\LoggerInterface; |
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use Psr\Log\LogLevel; |
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use React\EventLoop\Factory; |
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use React\EventLoop\LoopInterface; |
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use Symfony\Component\Console\Command\Command; |
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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\Logger\ConsoleLogger; |
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use Symfony\Component\Console\Output\OutputInterface; |
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use Symfony\Component\Console\Style\SymfonyStyle; |
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use function BenTools\MercurePHP\nullify; |
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use function BenTools\MercurePHP\without_nullish_values; |
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final class ServeCommand extends Command |
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{ |
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protected static $defaultName = 'mercure:serve'; |
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private Configuration $configuration; |
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private HubFactoryInterface $factory; |
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private LoopInterface $loop; |
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private ?LoggerInterface $logger; |
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public function __construct( |
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Configuration $configuration, |
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HubFactoryInterface $factory, |
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LoopInterface $loop, |
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?LoggerInterface $logger = null |
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) { |
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parent::__construct(); |
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$this->configuration = $configuration; |
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$this->factory = $factory; |
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$this->loop = $loop; |
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$this->logger = $logger; |
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} |
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protected function execute(InputInterface $input, OutputInterface $output): int |
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{ |
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$loop = $this->loop; |
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$output = new SymfonyStyle($input, $output); |
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$logger = $this->logger ?? new ConsoleLogger($output, [LogLevel::INFO => OutputInterface::VERBOSITY_NORMAL]); |
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try { |
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$config = $this->configuration->overrideWith(without_nullish_values($input->getOptions()))->asArray(); |
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$factory = $this->factory->withConfig($config); |
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$loop->futureTick( |
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function () use ($config, $output) { |
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$this->displayConfiguration($config, $output); |
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} |
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); |
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$hub = $factory->create(); |
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$hub->run(); |
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if (\SIGINT === $hub->getShutdownSignal()) { |
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$output->newLine(2); |
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$output->writeln('SIGINT received. 😢'); |
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$output->writeln('Goodbye! 👋'); |
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return 0; |
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} |
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$output->error('Server process was killed unexpectedly.'); |
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return 1; |
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} catch (\Exception $e) { |
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$output->error($e->getMessage()); |
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return 1; |
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} |
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} |
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protected function configure(): void |
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{ |
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$this->setDescription('Runs the Mercure Hub as a standalone application.'); |
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$this->addOption( |
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'addr', |
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null, |
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InputOption::VALUE_OPTIONAL, |
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'The address to listen on.', |
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) |
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->addOption( |
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'transport-url', |
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null, |
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InputOption::VALUE_OPTIONAL, |
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'The DSN to transport messages.', |
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) |
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->addOption( |
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'storage-url', |
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null, |
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InputOption::VALUE_OPTIONAL, |
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'The DSN to store messages.', |
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) |
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->addOption( |
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'metrics-url', |
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null, |
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InputOption::VALUE_OPTIONAL, |
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'The DSN to store metrics.', |
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) |
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->addOption( |
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'cors-allowed-origins', |
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null, |
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InputOption::VALUE_OPTIONAL, |
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'A list of allowed CORS origins, can be * for all.', |
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) |
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->addOption( |
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'jwt-key', |
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null, |
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InputOption::VALUE_OPTIONAL, |
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'The JWT key to use for both publishers and subscribers', |
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) |
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->addOption( |
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'jwt-algorithm', |
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null, |
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InputOption::VALUE_OPTIONAL, |
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'The JWT verification algorithm to use for both publishers and subscribers, e.g. HS256 (default) or RS512.', |
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) |
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->addOption( |
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'publisher-jwt-key', |
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null, |
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InputOption::VALUE_OPTIONAL, |
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'Must contain the secret key to valid publishers\' JWT, can be omitted if jwt_key is set.', |
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) |
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->addOption( |
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'publisher-jwt-algorithm', |
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null, |
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InputOption::VALUE_OPTIONAL, |
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'The JWT verification algorithm to use for publishers, e.g. HS256 (default) or RS512.', |
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) |
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->addOption( |
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'subscriber-jwt-key', |
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null, |
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InputOption::VALUE_OPTIONAL, |
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'Must contain the secret key to valid subscribers\' JWT, can be omitted if jwt_key is set.', |
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) |
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->addOption( |
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'subscriber-jwt-algorithm', |
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null, |
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InputOption::VALUE_OPTIONAL, |
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'The JWT verification algorithm to use for subscribers, e.g. HS256 (default) or RS512.', |
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) |
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->addOption( |
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'allow-anonymous', |
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null, |
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InputOption::VALUE_NONE, |
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'Allows subscribers with no valid JWT to connect.', |
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); |
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} |
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private function displayConfiguration(array $config, SymfonyStyle $output): void |
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{ |
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if (!$output->isVeryVerbose()) { |
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return; |
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} |
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$rows = []; |
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foreach ($config as $key => $value) { |
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if (null === $value) { |
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$value = '<fg=yellow>null</>'; |
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} |
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if (\is_bool($value)) { |
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$value = $value ? '<fg=green>true</>' : '<fg=red>false</>'; |
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} |
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$rows[] = [$key, $value]; |
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} |
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$output->table(['Key', 'Value'], $rows); |
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} |
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private function getInputOptions(InputInterface $input): array |
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{ |
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return \array_filter( |
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$input->getOptions(), |
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fn($value) => null !== nullify($value) && false !== $value |
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); |
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} |
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} |
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