/*
* 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.tika.sax;
import java.io.IOException;
import junit.framework.TestCase;
import org.apache.tika.exception.TikaException;
import org.apache.tika.io.NullInputStream;
import org.apache.tika.io.TikaInputStream;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.AttributesImpl;
import org.xml.sax.helpers.DefaultHandler;
/**
* Tests for the {@link SecureContentHandler} class.
*/
public class SecureContentHandlerTest extends TestCase {
private static final int MANY_BYTES = 2000000;
private TikaInputStream stream;
private SecureContentHandler handler;
protected void setUp() {
stream = TikaInputStream.get(new NullInputStream(MANY_BYTES));
handler = new SecureContentHandler(new DefaultHandler(), stream);
}
public void testZeroCharactersPerByte() throws IOException {
try {
char[] ch = new char[] { 'x' };
for (int i = 0; i < MANY_BYTES; i++) {
stream.read();
}
handler.characters(ch, 0, 1);
} catch (SAXException e) {
fail("Unexpected SAXException");
}
}
public void testOneCharacterPerByte() throws IOException {
try {
char[] ch = new char[1];
for (int i = 0; i < MANY_BYTES; i++) {
stream.read();
handler.characters(ch, 0, ch.length);
}
} catch (SAXException e) {
fail("Unexpected SAXException");
}
}
public void testTenCharactersPerByte() throws IOException {
try {
char[] ch = new char[10];
for (int i = 0; i < MANY_BYTES; i++) {
stream.read();
handler.characters(ch, 0, ch.length);
}
} catch (SAXException e) {
fail("Unexpected SAXException");
}
}
public void testManyCharactersPerByte() throws IOException {
try {
char[] ch = new char[1000];
for (int i = 0; i < MANY_BYTES; i++) {
stream.read();
handler.characters(ch, 0, ch.length);
}
fail("Expected SAXException not thrown");
} catch (SAXException e) {
// expected
}
}
public void testSomeCharactersWithoutInput() throws IOException {
try {
char[] ch = new char[100];
for (int i = 0; i < 100; i++) {
handler.characters(ch, 0, ch.length);
}
} catch (SAXException e) {
fail("Unexpected SAXException");
}
}
public void testManyCharactersWithoutInput() throws IOException {
try {
char[] ch = new char[100];
for (int i = 0; i < 20000; i++) {
handler.characters(ch, 0, ch.length);
}
fail("Expected SAXException not thrown");
} catch (SAXException e) {
// expected
}
}
public void testNestedElements() throws SAXException {
for (int i = 1; i < handler.getMaximumDepth(); i++) {
handler.startElement("", "x", "x", new AttributesImpl());
}
try {
handler.startElement("", "x", "x", new AttributesImpl());
fail("Nested XML element limit exceeded");
} catch (SAXException e) {
try {
handler.throwIfCauseOf(e);
throw e;
} catch (TikaException expected) {
}
}
}
public void testNestedEntries() throws SAXException {
AttributesImpl atts = new AttributesImpl();
atts.addAttribute("", "class", "class", "CDATA", "package-entry");
for (int i = 1; i < handler.getMaximumPackageEntryDepth(); i++) {
handler.startElement("", "div", "div", atts);
}
try {
handler.startElement("", "div", "div", atts);
fail("Nested XML element limit exceeded");
} catch (SAXException e) {
try {
handler.throwIfCauseOf(e);
throw e;
} catch (TikaException expected) {
}
}
}
}