fix(files): disallow illegal characters

Signed-off-by: John Molakvoæ (skjnldsv) <skjnldsv@protonmail.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/apps/files/src/components/FileEntry.vue b/apps/files/src/components/FileEntry.vue
index 275e8bb3aef..537279cabfe 100644
--- a/apps/files/src/components/FileEntry.vue
+++ b/apps/files/src/components/FileEntry.vue
@@ -232,12 +232,15 @@ import CustomElementRender from './CustomElementRender.vue'
 import CustomSvgIconRender from './CustomSvgIconRender.vue'
 import FavoriteIcon from './FavoriteIcon.vue'
 import logger from '../logger.js'
+import { loadState } from '@nextcloud/initial-state'
 
 // The registered actions list
 const actions = getFileActions()
 
 Vue.directive('onClickOutside', vOnClickOutside)
 
+const forbiddenCharacters = loadState('files', 'forbiddenCharacters', '') as string
+
 export default Vue.extend({
 	name: 'FileEntry',
 
@@ -810,6 +813,13 @@ export default Vue.extend({
 				throw new Error(this.t('files', '{newName} already exists.', { newName: name }))
 			}
 
+			const toCheck = trimmedName.split('')
+			toCheck.forEach(char => {
+				if (forbiddenCharacters.indexOf(char) !== -1) {
+					throw new Error(this.t('files', '"{char}" is not allowed inside a file name.', { char }))
+				}
+			})
+
 			return true
 		},
 		checkIfNodeExists(name) {