1 files changed, 138 insertions, 0 deletions
diff --git a/core/Command/Log/File.php b/core/Command/Log/File.php
new file mode 100644
index 00000000000..ba5dad956e9
--- /dev/null
+++ b/core/Command/Log/File.php
@@ -0,0 +1,138 @@
+<?php
+
+/**
+ * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+namespace OC\Core\Command\Log;
+
+use OCP\IConfig;
+use OCP\Util;
+
+use Stecman\Component\Symfony\Console\BashCompletion\Completion;
+use Stecman\Component\Symfony\Console\BashCompletion\Completion\ShellPathCompletion;
+use Stecman\Component\Symfony\Console\BashCompletion\CompletionContext;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+
+class File extends Command implements Completion\CompletionAwareInterface {
+	public function __construct(
+		protected IConfig $config,
+	) {
+		parent::__construct();
+	}
+
+	protected function configure() {
+		$this
+			->setName('log:file')
+			->setDescription('manipulate logging backend')
+			->addOption(
+				'enable',
+				null,
+				InputOption::VALUE_NONE,
+				'enable this logging backend'
+			)
+			->addOption(
+				'file',
+				null,
+				InputOption::VALUE_REQUIRED,
+				'set the log file path'
+			)
+			->addOption(
+				'rotate-size',
+				null,
+				InputOption::VALUE_REQUIRED,
+				'set the file size for log rotation, 0 = disabled'
+			)
+		;
+	}
+
+	protected function execute(InputInterface $input, OutputInterface $output): int {
+		$toBeSet = [];
+
+		if ($input->getOption('enable')) {
+			$toBeSet['log_type'] = 'file';
+		}
+
+		if ($file = $input->getOption('file')) {
+			$toBeSet['logfile'] = $file;
+		}
+
+		if (($rotateSize = $input->getOption('rotate-size')) !== null) {
+			$rotateSize = Util::computerFileSize($rotateSize);
+			$this->validateRotateSize($rotateSize);
+			$toBeSet['log_rotate_size'] = $rotateSize;
+		}
+
+		// set config
+		foreach ($toBeSet as $option => $value) {
+			$this->config->setSystemValue($option, $value);
+		}
+
+		// display config
+		// TODO: Drop backwards compatibility for config in the future
+		$logType = $this->config->getSystemValue('log_type', 'file');
+		if ($logType === 'file' || $logType === 'owncloud') {
+			$enabledText = 'enabled';
+		} else {
+			$enabledText = 'disabled';
+		}
+		$output->writeln('Log backend file: ' . $enabledText);
+
+		$dataDir = $this->config->getSystemValue('datadirectory', \OC::$SERVERROOT . '/data');
+		$defaultLogFile = rtrim($dataDir, '/') . '/nextcloud.log';
+		$output->writeln('Log file: ' . $this->config->getSystemValue('logfile', $defaultLogFile));
+
+		$rotateSize = $this->config->getSystemValue('log_rotate_size', 100 * 1024 * 1024);
+		if ($rotateSize) {
+			$rotateString = Util::humanFileSize($rotateSize);
+		} else {
+			$rotateString = 'disabled';
+		}
+		$output->writeln('Rotate at: ' . $rotateString);
+		return 0;
+	}
+
+	/**
+	 * @throws \InvalidArgumentException
+	 */
+	protected function validateRotateSize(false|int|float $rotateSize): void {
+		if ($rotateSize === false) {
+			throw new \InvalidArgumentException('Error parsing log rotation file size');
+		}
+		if ($rotateSize < 0) {
+			throw new \InvalidArgumentException('Log rotation file size must be non-negative');
+		}
+	}
+
+	/**
+	 * @param string $optionName
+	 * @param CompletionContext $context
+	 * @return string[]
+	 */
+	public function completeOptionValues($optionName, CompletionContext $context) {
+		if ($optionName === 'file') {
+			$helper = new ShellPathCompletion(
+				$this->getName(),
+				'file',
+				Completion::TYPE_OPTION
+			);
+			return $helper->run();
+		} elseif ($optionName === 'rotate-size') {
+			return [0];
+		}
+		return [];
+	}
+
+	/**
+	 * @param string $argumentName
+	 * @param CompletionContext $context
+	 * @return string[]
+	 */
+	public function completeArgumentValues($argumentName, CompletionContext $context) {
+		return [];
+	}
+}