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ZipUtils.java
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ZipUtils.java
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package com.blankj.utilcode.util;
import android.util.Log;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Enumeration;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import java.util.zip.ZipOutputStream;
/**
* <pre>
* author: Blankj
* blog : http://blankj.com
* time : 2016/08/27
* desc : utils about zip
* </pre>
*/
public final class ZipUtils {
private static final int BUFFER_LEN = 8192;
private ZipUtils() {
throw new UnsupportedOperationException("u can't instantiate me...");
}
/**
* Zip the files.
*
* @param srcFiles The source of files.
* @param zipFilePath The path of ZIP file.
* @return {@code true}: success<br>{@code false}: fail
* @throws IOException if an I/O error has occurred
*/
public static boolean zipFiles(final Collection<String> srcFiles,
final String zipFilePath)
throws IOException {
return zipFiles(srcFiles, zipFilePath, null);
}
/**
* Zip the files.
*
* @param srcFilePaths The paths of source files.
* @param zipFilePath The path of ZIP file.
* @param comment The comment.
* @return {@code true}: success<br>{@code false}: fail
* @throws IOException if an I/O error has occurred
*/
public static boolean zipFiles(final Collection<String> srcFilePaths,
final String zipFilePath,
final String comment)
throws IOException {
if (srcFilePaths == null || zipFilePath == null) return false;
ZipOutputStream zos = null;
try {
zos = new ZipOutputStream(new FileOutputStream(zipFilePath));
for (String srcFile : srcFilePaths) {
if (!zipFile(UtilsBridge.getFileByPath(srcFile), "", zos, comment)) return false;
}
return true;
} finally {
if (zos != null) {
zos.finish();
zos.close();
}
}
}
/**
* Zip the files.
*
* @param srcFiles The source of files.
* @param zipFile The ZIP file.
* @return {@code true}: success<br>{@code false}: fail
* @throws IOException if an I/O error has occurred
*/
public static boolean zipFiles(final Collection<File> srcFiles, final File zipFile)
throws IOException {
return zipFiles(srcFiles, zipFile, null);
}
/**
* Zip the files.
*
* @param srcFiles The source of files.
* @param zipFile The ZIP file.
* @param comment The comment.
* @return {@code true}: success<br>{@code false}: fail
* @throws IOException if an I/O error has occurred
*/
public static boolean zipFiles(final Collection<File> srcFiles,
final File zipFile,
final String comment)
throws IOException {
if (srcFiles == null || zipFile == null) return false;
ZipOutputStream zos = null;
try {
zos = new ZipOutputStream(new FileOutputStream(zipFile));
for (File srcFile : srcFiles) {
if (!zipFile(srcFile, "", zos, comment)) return false;
}
return true;
} finally {
if (zos != null) {
zos.finish();
zos.close();
}
}
}
/**
* Zip the file.
*
* @param srcFilePath The path of source file.
* @param zipFilePath The path of ZIP file.
* @return {@code true}: success<br>{@code false}: fail
* @throws IOException if an I/O error has occurred
*/
public static boolean zipFile(final String srcFilePath,
final String zipFilePath)
throws IOException {
return zipFile(UtilsBridge.getFileByPath(srcFilePath), UtilsBridge.getFileByPath(zipFilePath), null);
}
/**
* Zip the file.
*
* @param srcFilePath The path of source file.
* @param zipFilePath The path of ZIP file.
* @param comment The comment.
* @return {@code true}: success<br>{@code false}: fail
* @throws IOException if an I/O error has occurred
*/
public static boolean zipFile(final String srcFilePath,
final String zipFilePath,
final String comment)
throws IOException {
return zipFile(UtilsBridge.getFileByPath(srcFilePath), UtilsBridge.getFileByPath(zipFilePath), comment);
}
/**
* Zip the file.
*
* @param srcFile The source of file.
* @param zipFile The ZIP file.
* @return {@code true}: success<br>{@code false}: fail
* @throws IOException if an I/O error has occurred
*/
public static boolean zipFile(final File srcFile,
final File zipFile)
throws IOException {
return zipFile(srcFile, zipFile, null);
}
/**
* Zip the file.
*
* @param srcFile The source of file.
* @param zipFile The ZIP file.
* @param comment The comment.
* @return {@code true}: success<br>{@code false}: fail
* @throws IOException if an I/O error has occurred
*/
public static boolean zipFile(final File srcFile,
final File zipFile,
final String comment)
throws IOException {
if (srcFile == null || zipFile == null) return false;
ZipOutputStream zos = null;
try {
zos = new ZipOutputStream(new FileOutputStream(zipFile));
return zipFile(srcFile, "", zos, comment);
} finally {
if (zos != null) {
zos.close();
}
}
}
private static boolean zipFile(final File srcFile,
String rootPath,
final ZipOutputStream zos,
final String comment)
throws IOException {
rootPath = rootPath + (UtilsBridge.isSpace(rootPath) ? "" : File.separator) + srcFile.getName();
if (srcFile.isDirectory()) {
File[] fileList = srcFile.listFiles();
if (fileList == null || fileList.length <= 0) {
ZipEntry entry = new ZipEntry(rootPath + '/');
entry.setComment(comment);
zos.putNextEntry(entry);
zos.closeEntry();
} else {
for (File file : fileList) {
if (!zipFile(file, rootPath, zos, comment)) return false;
}
}
} else {
InputStream is = null;
try {
is = new BufferedInputStream(new FileInputStream(srcFile));
ZipEntry entry = new ZipEntry(rootPath);
entry.setComment(comment);
zos.putNextEntry(entry);
byte buffer[] = new byte[BUFFER_LEN];
int len;
while ((len = is.read(buffer, 0, BUFFER_LEN)) != -1) {
zos.write(buffer, 0, len);
}
zos.closeEntry();
} finally {
if (is != null) {
is.close();
}
}
}
return true;
}
/**
* Unzip the file.
*
* @param zipFilePath The path of ZIP file.
* @param destDirPath The path of destination directory.
* @return the unzipped files
* @throws IOException if unzip unsuccessfully
*/
public static List<File> unzipFile(final String zipFilePath,
final String destDirPath)
throws IOException {
return unzipFileByKeyword(zipFilePath, destDirPath, null);
}
/**
* Unzip the file.
*
* @param zipFile The ZIP file.
* @param destDir The destination directory.
* @return the unzipped files
* @throws IOException if unzip unsuccessfully
*/
public static List<File> unzipFile(final File zipFile,
final File destDir)
throws IOException {
return unzipFileByKeyword(zipFile, destDir, null);
}
/**
* Unzip the file by keyword.
*
* @param zipFilePath The path of ZIP file.
* @param destDirPath The path of destination directory.
* @param keyword The keyboard.
* @return the unzipped files
* @throws IOException if unzip unsuccessfully
*/
public static List<File> unzipFileByKeyword(final String zipFilePath,
final String destDirPath,
final String keyword)
throws IOException {
return unzipFileByKeyword(UtilsBridge.getFileByPath(zipFilePath), UtilsBridge.getFileByPath(destDirPath), keyword);
}
/**
* Unzip the file by keyword.
*
* @param zipFile The ZIP file.
* @param destDir The destination directory.
* @param keyword The keyboard.
* @return the unzipped files
* @throws IOException if unzip unsuccessfully
*/
public static List<File> unzipFileByKeyword(final File zipFile,
final File destDir,
final String keyword)
throws IOException {
if (zipFile == null || destDir == null) return null;
List<File> files = new ArrayList<>();
ZipFile zip = new ZipFile(zipFile);
Enumeration<?> entries = zip.entries();
try {
if (UtilsBridge.isSpace(keyword)) {
while (entries.hasMoreElements()) {
ZipEntry entry = ((ZipEntry) entries.nextElement());
String entryName = entry.getName().replace("\\", "/");
if (entryName.contains("../")) {
Log.e("ZipUtils", "entryName: " + entryName + " is dangerous!");
continue;
}
if (!unzipChildFile(destDir, files, zip, entry, entryName)) return files;
}
} else {
while (entries.hasMoreElements()) {
ZipEntry entry = ((ZipEntry) entries.nextElement());
String entryName = entry.getName().replace("\\", "/");
if (entryName.contains("../")) {
Log.e("ZipUtils", "entryName: " + entryName + " is dangerous!");
continue;
}
if (entryName.contains(keyword)) {
if (!unzipChildFile(destDir, files, zip, entry, entryName)) return files;
}
}
}
} finally {
zip.close();
}
return files;
}
private static boolean unzipChildFile(final File destDir,
final List<File> files,
final ZipFile zip,
final ZipEntry entry,
final String name) throws IOException {
File file = new File(destDir, name);
files.add(file);
if (entry.isDirectory()) {
return UtilsBridge.createOrExistsDir(file);
} else {
if (!UtilsBridge.createOrExistsFile(file)) return false;
InputStream in = null;
OutputStream out = null;
try {
in = new BufferedInputStream(zip.getInputStream(entry));
out = new BufferedOutputStream(new FileOutputStream(file));
byte buffer[] = new byte[BUFFER_LEN];
int len;
while ((len = in.read(buffer)) != -1) {
out.write(buffer, 0, len);
}
} finally {
if (in != null) {
in.close();
}
if (out != null) {
out.close();
}
}
}
return true;
}
/**
* Return the files' path in ZIP file.
*
* @param zipFilePath The path of ZIP file.
* @return the files' path in ZIP file
* @throws IOException if an I/O error has occurred
*/
public static List<String> getFilesPath(final String zipFilePath)
throws IOException {
return getFilesPath(UtilsBridge.getFileByPath(zipFilePath));
}
/**
* Return the files' path in ZIP file.
*
* @param zipFile The ZIP file.
* @return the files' path in ZIP file
* @throws IOException if an I/O error has occurred
*/
public static List<String> getFilesPath(final File zipFile)
throws IOException {
if (zipFile == null) return null;
List<String> paths = new ArrayList<>();
ZipFile zip = new ZipFile(zipFile);
Enumeration<?> entries = zip.entries();
while (entries.hasMoreElements()) {
String entryName = ((ZipEntry) entries.nextElement()).getName().replace("\\", "/");
if (entryName.contains("../")) {
Log.e("ZipUtils", "entryName: " + entryName + " is dangerous!");
paths.add(entryName);
} else {
paths.add(entryName);
}
}
zip.close();
return paths;
}
/**
* Return the files' comment in ZIP file.
*
* @param zipFilePath The path of ZIP file.
* @return the files' comment in ZIP file
* @throws IOException if an I/O error has occurred
*/
public static List<String> getComments(final String zipFilePath)
throws IOException {
return getComments(UtilsBridge.getFileByPath(zipFilePath));
}
/**
* Return the files' comment in ZIP file.
*
* @param zipFile The ZIP file.
* @return the files' comment in ZIP file
* @throws IOException if an I/O error has occurred
*/
public static List<String> getComments(final File zipFile)
throws IOException {
if (zipFile == null) return null;
List<String> comments = new ArrayList<>();
ZipFile zip = new ZipFile(zipFile);
Enumeration<?> entries = zip.entries();
while (entries.hasMoreElements()) {
ZipEntry entry = ((ZipEntry) entries.nextElement());
comments.add(entry.getComment());
}
zip.close();
return comments;
}
}