Feat #5: add new lines to make JsonReader able to detect unescaped co…

…ntrol characters (U+0000 through U+001F) and throw exceptions.
marten-voorberg · Feb 24, 2023 · 49f97e7 · 49f97e7
1 parent 1ae8d81
commit 49f97e7
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/gson/src/main/java/com/google/gson/stream/JsonReader.java b/gson/src/main/java/com/google/gson/stream/JsonReader.java
@@ -567,6 +567,12 @@ int doPeek() throws IOException {
     }
 
     int c = nextNonWhitespace(true);
+
+    // if in strict mode, throw an exception when meet unescaped control characters (U+0000 through U+001F)
+    if (strict && c <= '\u001f') {
+      throw syntaxError("Unescaped control characters");
+    }
+
     switch (c) {
     case ']':
       if (peekStack == JsonScope.EMPTY_ARRAY) {