use HTML encoding on JSON return strings ... starting with the GSON implementation

robertlazarski · robertlazarski · commit f767197673a6 · 2021-07-18T17:37:51.000-04:00
diff --git a/modules/json/src/org/apache/axis2/json/gson/JsonHtmlXssSerializer.java b/modules/json/src/org/apache/axis2/json/gson/JsonHtmlXssSerializer.java
@@ -0,0 +1,39 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.axis2.json.gson;
+
+import org.owasp.encoder.Encode;
+
+import com.google.gson.JsonElement;
+import com.google.gson.JsonPrimitive;
+import com.google.gson.JsonSerializationContext;
+import com.google.gson.JsonSerializer;
+import java.lang.reflect.Type;
+
+public class JsonHtmlXssSerializer implements JsonSerializer<String> {
+
+	@Override
+	public JsonElement serialize(String src, Type typeOfSrc,
+			JsonSerializationContext context) {
+
+		return new JsonPrimitive(Encode.forHtmlContent(src));
+
+	}
+}
