1 files changed, 94 insertions, 0 deletions
diff --git a/apps/files_sharing/lib/Helper.php b/apps/files_sharing/lib/Helper.php
new file mode 100644
index 00000000000..92e874b73db
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+++ b/apps/files_sharing/lib/Helper.php
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+<?php
+
+/**
+ * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+namespace OCA\Files_Sharing;
+
+use OC\Files\Filesystem;
+use OC\Files\View;
+use OCA\Files_Sharing\AppInfo\Application;
+use OCP\IConfig;
+use OCP\Server;
+use OCP\Util;
+
+class Helper {
+	public static function registerHooks() {
+		Util::connectHook('OC_Filesystem', 'post_rename', '\OCA\Files_Sharing\Updater', 'renameHook');
+		Util::connectHook('OC_Filesystem', 'post_delete', '\OCA\Files_Sharing\Hooks', 'unshareChildren');
+
+		Util::connectHook('OC_User', 'post_deleteUser', '\OCA\Files_Sharing\Hooks', 'deleteUser');
+	}
+
+	/**
+	 * check if file name already exists and generate unique target
+	 *
+	 * @param string $path
+	 * @param View $view
+	 * @return string $path
+	 */
+	public static function generateUniqueTarget($path, $view) {
+		$pathinfo = pathinfo($path);
+		$ext = isset($pathinfo['extension']) ? '.' . $pathinfo['extension'] : '';
+		$name = $pathinfo['filename'];
+		$dir = $pathinfo['dirname'];
+		$i = 2;
+		while ($view->file_exists($path)) {
+			$path = Filesystem::normalizePath($dir . '/' . $name . ' (' . $i . ')' . $ext);
+			$i++;
+		}
+
+		return $path;
+	}
+
+	/**
+	 * get default share folder
+	 *
+	 * @param View|null $view
+	 * @param string|null $userId
+	 * @return string
+	 */
+	public static function getShareFolder(?View $view = null, ?string $userId = null): string {
+		if ($view === null) {
+			$view = Filesystem::getView();
+		}
+
+		$config = Server::get(IConfig::class);
+		$systemDefault = $config->getSystemValue('share_folder', '/');
+		$allowCustomShareFolder = $config->getSystemValueBool('sharing.allow_custom_share_folder', true);
+
+		// Init custom shareFolder
+		$shareFolder = $systemDefault;
+		if ($userId !== null && $allowCustomShareFolder) {
+			$shareFolder = $config->getUserValue($userId, Application::APP_ID, 'share_folder', $systemDefault);
+		}
+
+		// Verify and sanitize path
+		$shareFolder = Filesystem::normalizePath($shareFolder);
+
+		// Init path if folder doesn't exists
+		if (!$view->file_exists($shareFolder)) {
+			$dir = '';
+			$subdirs = explode('/', $shareFolder);
+			foreach ($subdirs as $subdir) {
+				$dir = $dir . '/' . $subdir;
+				if (!$view->is_dir($dir)) {
+					$view->mkdir($dir);
+				}
+			}
+		}
+
+		return $shareFolder;
+	}
+
+	/**
+	 * set default share folder
+	 *
+	 * @param string $shareFolder
+	 */
+	public static function setShareFolder($shareFolder) {
+		Server::get(IConfig::class)->setSystemValue('share_folder', $shareFolder);
+	}
+}