added helper function to escape glob pattern

Conflicts:

	apps/files_encryption/lib/helper.php

apps/files_encryption/hooks/hooks.php

@@ -497,7 +497,7 @@ class Hooks {
 
 			// handle share-keys
 			$localKeyPath = $view->getLocalFile($baseDir . 'share-keys/' . $params['oldpath']);
-			$escapedPath = preg_replace('/(\*|\?|\[)/', '[$1]', $localKeyPath);
+			$escapedPath = Helper::escapeGlobPattern($localKeyPath);
 			$matches = glob($escapedPath . '*.shareKey');
 			foreach ($matches as $src) {
 				$dst = \OC\Files\Filesystem::normalizePath(str_replace($params['oldpath'], $params['newpath'], $src));

apps/files_encryption/lib/helper.php

@@ -218,7 +218,6 @@ class Helper {
 		exit();
 	}
 
-
 	/**
 	 * check requirements for encryption app.
 	 * @return bool true if requirements are met
@@ -234,3 +233,14 @@ class Helper {
 		return (bool) $result;
 	}
 }
+
+	/**
+	 * @brief glob uses different pattern than regular expressions, escape glob pattern only
+	 * @param unescaped path
+	 * @return escaped path
+	 */
+	public static function escapeGlobPattern($path) {
+		return preg_replace('/(\*|\?|\[)/', '[$1]', $path);
+	}
+}
+

apps/files_encryption/lib/keymanager.php

@@ -488,7 +488,7 @@ class Keymanager {
 			$view->unlink($baseDir . $filePath);
 		} else {
 			$localKeyPath = $view->getLocalFile($baseDir . $filePath);
-			$escapedPath = preg_replace('/(\*|\?|\[)/', '[$1]', $localKeyPath);
+			$escapedPath = Helper::escapeGlobPattern($localKeyPath);
 			$matches = glob($escapedPath . '*.shareKey');
 			foreach ($matches as $ma) {
 				$result = unlink($ma);
@@ -549,8 +549,8 @@ class Keymanager {
 	private static function recursiveDelShareKeys($dir, $userIds) {
 		foreach ($userIds as $userId) {
 			$extension = '.' . $userId . '.shareKey';
-			$escapedDir = preg_replace('/(\*|\?|\[)/', '[$1]', $dir);
-			$escapedExtension = preg_replace('/(\*|\?|\[)/', '[$1]', $extension);
+			$escapedDir = Helper::escapeGlobPattern($dir);
+			$escapedExtension = Helper::escapeGlobPattern($extension);
 			$matches = glob($escapedDir . '/*' . $escapedExtension);
 		}
 		/** @var $matches array */