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81aae6936a
* perf: process smali code in parallel Note: backsmali can't be properly multithreaded because of the synchronized methods inside * perf: start backsmali concurrently with a resources decompiler * perf: speed up apk building by skipping temp archive creation Now we're not compressing the same data twice * refactor: extract duplicated code * refactor: rename methods and inline some comments
96 lines
4.0 KiB
Java
96 lines
4.0 KiB
Java
/*
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* Copyright (C) 2010 Ryszard Wiśniewski <brut.alll@gmail.com>
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* Copyright (C) 2010 Connor Tumbleson <connor.tumbleson@gmail.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package brut.directory;
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import brut.common.BrutException;
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import brut.util.BrutIO;
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import org.apache.commons.io.FilenameUtils;
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import org.apache.commons.io.IOUtils;
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import java.io.*;
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import java.nio.file.Files;
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import java.util.Collection;
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import java.util.zip.CRC32;
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import java.util.zip.ZipEntry;
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import java.util.zip.ZipOutputStream;
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public class ZipUtils {
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private static Collection<String> mDoNotCompress;
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private ZipUtils() {
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// Private constructor for utility class
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}
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public static void zipFolders(final File folder, final File zip, final File assets, final Collection<String> doNotCompress)
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throws BrutException, IOException {
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ZipOutputStream zipOutputStream = new ZipOutputStream(Files.newOutputStream(zip.toPath()));
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zipFoldersPreserveStream(folder, zipOutputStream, assets, doNotCompress);
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zipOutputStream.close();
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}
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public static void zipFoldersPreserveStream(final File folder, final ZipOutputStream zipOutputStream, final File assets, final Collection<String> doNotCompress)
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throws BrutException, IOException {
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mDoNotCompress = doNotCompress;
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zipFolders(folder, zipOutputStream);
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// We manually set the assets because we need to retain the folder structure
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if (assets != null) {
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processFolder(assets, zipOutputStream, assets.getPath().length() - 6);
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}
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}
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private static void zipFolders(final File folder, final ZipOutputStream outputStream)
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throws BrutException, IOException {
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processFolder(folder, outputStream, folder.getPath().length() + 1);
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}
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private static void processFolder(final File folder, final ZipOutputStream zipOutputStream, final int prefixLength)
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throws BrutException, IOException {
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for (final File file : folder.listFiles()) {
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if (file.isFile()) {
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final String cleanedPath = BrutIO.sanitizeUnknownFile(folder, file.getPath().substring(prefixLength));
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final ZipEntry zipEntry = new ZipEntry(BrutIO.normalizePath(cleanedPath));
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// aapt binary by default takes in parameters via -0 arsc to list extensions that shouldn't be
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// compressed. We will replicate that behavior
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final String extension = FilenameUtils.getExtension(file.getAbsolutePath());
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if (mDoNotCompress != null && (mDoNotCompress.contains(extension) || mDoNotCompress.contains(zipEntry.getName()))) {
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zipEntry.setMethod(ZipEntry.STORED);
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zipEntry.setSize(file.length());
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BufferedInputStream unknownFile = new BufferedInputStream(Files.newInputStream(file.toPath()));
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CRC32 crc = BrutIO.calculateCrc(unknownFile);
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zipEntry.setCrc(crc.getValue());
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unknownFile.close();
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} else {
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zipEntry.setMethod(ZipEntry.DEFLATED);
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}
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zipOutputStream.putNextEntry(zipEntry);
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try (FileInputStream inputStream = new FileInputStream(file)) {
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IOUtils.copy(inputStream, zipOutputStream);
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}
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zipOutputStream.closeEntry();
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} else if (file.isDirectory()) {
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processFolder(file, zipOutputStream, prefixLength);
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}
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}
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}
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}
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