add command to delete a file

Signed-off-by: Robin Appelman <robin@icewind.nl>

core/Command/Info/Delete.php

@@ -0,0 +1,115 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * @copyright Copyright (c) 2023 Robin Appelman <robin@icewind.nl>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * 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 OC\Core\Command\Info;
+
+use OCA\Files_Sharing\SharedStorage;
+use OCP\Files\Folder;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Helper\QuestionHelper;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Question\ConfirmationQuestion;
+
+class Delete extends Command {
+	private FileUtils $fileUtils;
+
+	public function __construct(FileUtils $fileUtils) {
+		$this->fileUtils = $fileUtils;
+		parent::__construct();
+	}
+
+	protected function configure(): void {
+		$this
+			->setName('info:file:delete')
+			->setDescription('Delete a file or folder')
+			->addArgument('file', InputArgument::REQUIRED, "File id or path")
+			->addOption('force', 'f', InputOption::VALUE_NONE, "Don't ask for configuration and don't output any warnings");
+	}
+
+	public function execute(InputInterface $input, OutputInterface $output): int {
+		$fileInput = $input->getArgument('file');
+		$inputIsId = is_numeric($fileInput);
+		$force = $input->getOption('force');
+		$node = $this->fileUtils->getNode($fileInput);
+
+		if (!$node) {
+			$output->writeln("<error>file $fileInput not found</error>");
+			return 1;
+		}
+
+		$deleteConfirmed = $force;
+		if (!$deleteConfirmed) {
+			/** @var QuestionHelper $helper */
+			$helper = $this->getHelper('question');
+			$storage = $node->getStorage();
+			if (!$inputIsId && $storage->instanceOfStorage(SharedStorage::class) && $node->getInternalPath() === '') {
+				/** @var SharedStorage $storage */
+				[,$user] = explode('/', $fileInput, 3);
+				$question = new ConfirmationQuestion("<info>$fileInput</info> in a shared file, do you want to unshare the file <info>$user</info> instead of deleting the source file? [Y/n] ", true);
+				if ($helper->ask($input, $output, $question)) {
+					$storage->unshareStorage();
+					return 0;
+				} else {
+					$node = $storage->getShare()->getNode();
+					$output->writeln("");
+				}
+			}
+
+			$filesByUsers = $this->fileUtils->getFilesByUser($node);
+			if (count($filesByUsers) > 1) {
+				$output->writeln("Warning: the provided file is accessible by more than one user");
+				$output->writeln("  all of the following users will lose access to the file when deleted:");
+				$output->writeln("");
+				foreach ($filesByUsers as $user => $filesByUser) {
+					$output->writeln($user . ":");
+					foreach($filesByUser as $file) {
+						$output->writeln("  - " . $file->getPath());
+					}
+				}
+				$output->writeln("");
+			}
+
+			if ($node instanceof Folder) {
+				$maybeContents = " and all it's contents";
+			} else {
+				$maybeContents = "";
+			}
+			$question = new ConfirmationQuestion("Delete " . $node->getPath() . $maybeContents . "? [y/N] ", false);
+			$deleteConfirmed = $helper->ask($input, $output, $question);
+		}
+
+		if ($deleteConfirmed) {
+			if ($node->isDeletable()) {
+				$node->delete();
+			} else {
+				$output->writeln("<error>File cannot be deleted, insufficient permissions.</error>");
+			}
+		}
+
+		return 0;
+	}
+
+}

core/Command/Info/Get.php

@@ -53,6 +53,11 @@ class Get extends Command {
 		$outputName = $input->getOption('output');
 		$node = $this->fileUtils->getNode($fileInput);
 
+		if (!$node) {
+			$output->writeln("<error>file $fileInput not found</error>");
+			return 1;
+		}
+
 		if ($node instanceof File) {
 			$isTTY = stream_isatty(STDOUT);
 			if ($outputName === null && $isTTY && $node->getMimePart() !== 'text') {

core/register_command.php

@@ -106,6 +106,7 @@ if (\OC::$server->getConfig()->getSystemValue('installed', false)) {
 	$application->add(\OC::$server->get(OC\Core\Command\Info\File::class));
 	$application->add(\OC::$server->get(OC\Core\Command\Info\Space::class));
 	$application->add(\OC::$server->get(OC\Core\Command\Info\Get::class));
+	$application->add(\OC::$server->get(OC\Core\Command\Info\Delete::class));
 
 	$application->add(new OC\Core\Command\Db\ConvertType(\OC::$server->getConfig(), new \OC\DB\ConnectionFactory(\OC::$server->getSystemConfig())));
 	$application->add(new OC\Core\Command\Db\ConvertMysqlToMB4(\OC::$server->getConfig(), \OC::$server->getDatabaseConnection(), \OC::$server->getURLGenerator(), \OC::$server->get(LoggerInterface::class)));