avloid tokenization if lister failed or an empty list of restricted words #237

2019-01-21 16:52:49 -06:00
parent ab6c9a515c
commit 84488182a2
1 changed files with 4 additions and 2 deletions
@@ -34,14 +34,16 @@ func NewRestrictedWordsMatcher(lister RestrictedWordsLister) *RestrictedWordsMat

 // Match matches comment text against restricted words for specified site
 func (m *RestrictedWordsMatcher) Match(siteID string, text string) bool {
-	tokens := m.tokenize(text)
-
 	restrictedWords, err := m.lister.List(siteID)
 	if err != nil {
 		fmt.Printf("failed to get restricted patterns for site %s: %v", siteID, err)
 		return false
 	}
+	if len(restrictedWords) == 0 {
+		return false
+	}

+	tokens := m.tokenize(text)
 	trie := newWildcardTrie(restrictedWords...)

 	for _, token := range tokens {