/*
* Copyright 2012-2017 the original author or authors.
*
* Licensed 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.springframework.boot.loader.archive;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;
import java.util.jar.JarEntry;
import java.util.jar.JarOutputStream;
import java.util.zip.CRC32;
import java.util.zip.ZipEntry;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.junit.rules.TemporaryFolder;
import org.springframework.boot.loader.TestJarCreator;
import org.springframework.boot.loader.archive.Archive.Entry;
import org.springframework.util.FileCopyUtils;
import static org.assertj.core.api.Assertions.assertThat;
import static org.hamcrest.CoreMatchers.equalTo;
/**
* Tests for {@link JarFileArchive}.
*
* @author Phillip Webb
* @author Andy Wilkinson
*/
public class JarFileArchiveTests {
@Rule
public TemporaryFolder temporaryFolder = new TemporaryFolder();
@Rule
public ExpectedException thrown = ExpectedException.none();
private File rootJarFile;
private JarFileArchive archive;
private String rootJarFileUrl;
@Before
public void setup() throws Exception {
setup(false);
}
private void setup(boolean unpackNested) throws Exception {
this.rootJarFile = this.temporaryFolder.newFile();
this.rootJarFileUrl = this.rootJarFile.toURI().toString();
TestJarCreator.createTestJar(this.rootJarFile, unpackNested);
this.archive = new JarFileArchive(this.rootJarFile);
}
@Test
public void getManifest() throws Exception {
assertThat(this.archive.getManifest().getMainAttributes().getValue("Built-By"))
.isEqualTo("j1");
}
@Test
public void getEntries() throws Exception {
Map<String, Archive.Entry> entries = getEntriesMap(this.archive);
assertThat(entries.size()).isEqualTo(10);
}
@Test
public void getUrl() throws Exception {
URL url = this.archive.getUrl();
assertThat(url.toString()).isEqualTo("jar:" + this.rootJarFileUrl + "!/");
}
@Test
public void getNestedArchive() throws Exception {
Entry entry = getEntriesMap(this.archive).get("nested.jar");
Archive nested = this.archive.getNestedArchive(entry);
assertThat(nested.getUrl().toString())
.isEqualTo("jar:" + this.rootJarFileUrl + "!/nested.jar!/");
}
@Test
public void getNestedUnpackedArchive() throws Exception {
setup(true);
Entry entry = getEntriesMap(this.archive).get("nested.jar");
Archive nested = this.archive.getNestedArchive(entry);
assertThat(nested.getUrl().toString()).startsWith("file:");
assertThat(nested.getUrl().toString()).endsWith("/nested.jar");
}
@Test
public void unpackedLocationsAreUniquePerArchive() throws Exception {
setup(true);
Entry entry = getEntriesMap(this.archive).get("nested.jar");
URL firstNested = this.archive.getNestedArchive(entry).getUrl();
setup(true);
entry = getEntriesMap(this.archive).get("nested.jar");
URL secondNested = this.archive.getNestedArchive(entry).getUrl();
assertThat(secondNested).isNotEqualTo(firstNested);
}
@Test
public void unpackedLocationsFromSameArchiveShareSameParent() throws Exception {
setup(true);
File nested = new File(this.archive
.getNestedArchive(getEntriesMap(this.archive).get("nested.jar")).getUrl()
.toURI());
File anotherNested = new File(
this.archive
.getNestedArchive(
getEntriesMap(this.archive).get("another-nested.jar"))
.getUrl().toURI());
assertThat(nested.getParent()).isEqualTo(anotherNested.getParent());
}
@Test
public void zip64ArchivesAreHandledGracefully() throws IOException {
File file = this.temporaryFolder.newFile("test.jar");
FileCopyUtils.copy(writeZip64Jar(), file);
this.thrown.expectMessage(equalTo("Zip64 archives are not supported"));
new JarFileArchive(file);
}
@Test
public void nestedZip64ArchivesAreHandledGracefully() throws IOException {
File file = this.temporaryFolder.newFile("test.jar");
JarOutputStream output = new JarOutputStream(new FileOutputStream(file));
JarEntry zip64JarEntry = new JarEntry("nested/zip64.jar");
output.putNextEntry(zip64JarEntry);
byte[] zip64JarData = writeZip64Jar();
zip64JarEntry.setSize(zip64JarData.length);
zip64JarEntry.setCompressedSize(zip64JarData.length);
zip64JarEntry.setMethod(ZipEntry.STORED);
CRC32 crc32 = new CRC32();
crc32.update(zip64JarData);
zip64JarEntry.setCrc(crc32.getValue());
output.write(zip64JarData);
output.closeEntry();
output.close();
JarFileArchive jarFileArchive = new JarFileArchive(file);
this.thrown.expectMessage(
equalTo("Failed to get nested archive for entry nested/zip64.jar"));
jarFileArchive
.getNestedArchive(getEntriesMap(jarFileArchive).get("nested/zip64.jar"));
}
private byte[] writeZip64Jar() throws IOException {
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
JarOutputStream jarOutput = new JarOutputStream(bytes);
for (int i = 0; i < 65537; i++) {
jarOutput.putNextEntry(new JarEntry(i + ".dat"));
jarOutput.closeEntry();
}
jarOutput.close();
return bytes.toByteArray();
}
private Map<String, Archive.Entry> getEntriesMap(Archive archive) {
Map<String, Archive.Entry> entries = new HashMap<>();
for (Archive.Entry entry : archive) {
entries.put(entry.getName(), entry);
}
return entries;
}
}