obr/src/test/java/org/apache/karaf/obr/command/util/FileUtilTest.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.karaf.obr.command.util;

import org.junit.Test;

import static org.junit.Assert.fail;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.jar.JarInputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

public class FileUtilTest {

    @Test
    public void goodExtractTest() throws Exception {
        File base = new File("target/test");
        base.mkdirs();
        File goodKarFile = new File(base, "good.kar");
        ZipOutputStream zos = new ZipOutputStream(new FileOutputStream(goodKarFile));
        ZipEntry entry = new ZipEntry("foo.bar");
        zos.putNextEntry(entry);

        byte[] data = "Test Data".getBytes();
        zos.write(data, 0, data.length);
        zos.closeEntry();
        zos.close();

        JarInputStream jis = new JarInputStream(new FileInputStream(goodKarFile));
        FileUtil.unjar(jis, base);

        goodKarFile.delete();
    }

    @Test
    public void badExtractTest() throws Exception {
        File base = new File("target/test");
        base.mkdirs();
        File badKarFile = new File(base, "bad.kar");
        ZipOutputStream zos = new ZipOutputStream(new FileOutputStream(badKarFile));
        ZipEntry entry = new ZipEntry("../../../../../../../../../tmp/foo.bar");
        zos.putNextEntry(entry);

        byte[] data = "Test Data".getBytes();
        zos.write(data, 0, data.length);
        zos.closeEntry();
        zos.close();

        JarInputStream jis = new JarInputStream(new FileInputStream(badKarFile));
        try {
            FileUtil.unjar(jis, base);
            fail("Failure expected on extracting a jar with relative file paths");
        } catch (Exception ex) {
            // expected
        }

        badKarFile.delete();
    }

}