handle "[" as a malformed array index by returning NotFound

buger · Dec 23, 2020 · 1e1db9e · 1e1db9e
1 parent d15cedb
commit 1e1db9e
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/parser.go b/parser.go
@@ -308,7 +308,11 @@ func searchKeys(data []byte, keys ...string) int {
  case '[':
  // If we want to get array element by index
  if keyLevel == level && keys[level][0] == '[' {
- aIdx, err := strconv.Atoi(keys[level][1 : len(keys[level])-1])
+ var keyLen = len(keys[level])
+ if keyLen < 3 || keys[level][0] != '[' || keys[level][keyLen-1] != ']' {
+ return -1
+ }
+ aIdx, err := strconv.Atoi(keys[level][1 : keyLen-1])
  if err != nil {
  return -1
  }