1 files changed, 96 insertions, 0 deletions
diff --git a/core/Command/Config/System/DeleteConfig.php b/core/Command/Config/System/DeleteConfig.php
new file mode 100644
index 00000000000..03960136f6f
--- /dev/null
+++ b/core/Command/Config/System/DeleteConfig.php
@@ -0,0 +1,96 @@
+<?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\Config\System;
+
+use OC\SystemConfig;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+
+class DeleteConfig extends Base {
+	public function __construct(
+		SystemConfig $systemConfig,
+	) {
+		parent::__construct($systemConfig);
+	}
+
+	protected function configure() {
+		parent::configure();
+
+		$this
+			->setName('config:system:delete')
+			->setDescription('Delete a system config value')
+			->addArgument(
+				'name',
+				InputArgument::REQUIRED | InputArgument::IS_ARRAY,
+				'Name of the config to delete, specify multiple for array parameter'
+			)
+			->addOption(
+				'error-if-not-exists',
+				null,
+				InputOption::VALUE_NONE,
+				'Checks whether the config exists before deleting it'
+			)
+		;
+	}
+
+	protected function execute(InputInterface $input, OutputInterface $output): int {
+		$configNames = $input->getArgument('name');
+		$configName = $configNames[0];
+
+		if (count($configNames) > 1) {
+			if ($input->hasParameterOption('--error-if-not-exists') && !in_array($configName, $this->systemConfig->getKeys())) {
+				$output->writeln('<error>System config ' . implode(' => ', $configNames) . ' could not be deleted because it did not exist</error>');
+				return 1;
+			}
+
+			$value = $this->systemConfig->getValue($configName);
+
+			try {
+				$value = $this->removeSubValue(array_slice($configNames, 1), $value, $input->hasParameterOption('--error-if-not-exists'));
+			} catch (\UnexpectedValueException $e) {
+				$output->writeln('<error>System config ' . implode(' => ', $configNames) . ' could not be deleted because it did not exist</error>');
+				return 1;
+			}
+
+			$this->systemConfig->setValue($configName, $value);
+			$output->writeln('<info>System config value ' . implode(' => ', $configNames) . ' deleted</info>');
+			return 0;
+		} else {
+			if ($input->hasParameterOption('--error-if-not-exists') && !in_array($configName, $this->systemConfig->getKeys())) {
+				$output->writeln('<error>System config ' . $configName . ' could not be deleted because it did not exist</error>');
+				return 1;
+			}
+
+			$this->systemConfig->deleteValue($configName);
+			$output->writeln('<info>System config value ' . $configName . ' deleted</info>');
+			return 0;
+		}
+	}
+
+	protected function removeSubValue($keys, $currentValue, $throwError) {
+		$nextKey = array_shift($keys);
+
+		if (is_array($currentValue)) {
+			if (isset($currentValue[$nextKey])) {
+				if (empty($keys)) {
+					unset($currentValue[$nextKey]);
+				} else {
+					$currentValue[$nextKey] = $this->removeSubValue($keys, $currentValue[$nextKey], $throwError);
+				}
+			} elseif ($throwError) {
+				throw new \UnexpectedValueException('Config parameter does not exist');
+			}
+		} elseif ($throwError) {
+			throw new \UnexpectedValueException('Config parameter does not exist');
+		}
+
+		return $currentValue;
+	}
+}