core/src/test/java/org/apache/oozie/util/TestXmlUtils.java

/**
 * 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.oozie.util;

import org.junit.Test;
import org.jdom.input.JDOMParseException;
import static junit.framework.Assert.assertTrue;
import static junit.framework.Assert.fail;

public class TestXmlUtils {

    private static String EXTERNAL_ENTITY_XML = "<!DOCTYPE foo [<!ENTITY xxe SYSTEM \"file:///etc/passwd\">]>\n"
            + "<foo>&xxe;</foo>";

    @Test
    public void testExternalEntity() throws Exception {
        try {
            XmlUtils.parseXml(EXTERNAL_ENTITY_XML);
            fail("DOCTYPE should not be allowed");
        } catch (JDOMParseException e) {
            assertTrue("Exception has different message.", e.getMessage().
                    contains("DOCTYPE is disallowed when the feature \"http://apache."
                            + "org/xml/features/disallow-doctype-decl\" set to true"));
        }
    }

    @Test
    public void testRemoveComments() throws Exception {
        String xmlStr = "<test1> <!-- Comment1 -->1234 <test2> ABCD <!-- Comment2 --> </test2> "
                + "<!-- Comment3 --> <test3> <!-- Comment4 -->EFGH  </test3> <!-- Comment5 --></test1>";
        String result = XmlUtils.removeComments(xmlStr);
        System.out.println("Result After Comments removal :\n" + result);
    }
}