org.aoju.bus.forest.Builder Maven / Gradle / Ivy
/*
* The MIT License
*
* Copyright (c) 2017 aoju.org All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package org.aoju.bus.forest;
import org.aoju.bus.forest.algorithm.Key;
import org.aoju.bus.forest.algorithm.SecureRandom;
import org.aoju.bus.forest.algorithm.SymmetricSecureKey;
import org.aoju.bus.forest.complex.AllComplex;
import org.aoju.bus.forest.complex.AnyComplex;
import org.aoju.bus.forest.complex.NotComplex;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
import java.io.*;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
import java.util.jar.Attributes;
/**
* Jar 工具类，包含I/O，密钥，过滤器的工具方法。
*
* @author Kimi Liu
* @version 3.6.8
* @since JDK 1.8+
*/
public abstract class Builder {
/**
* 从输入流中读取一行字节码
*
* @param in 输入流
* @return 最前面的一行字节码
* @throws IOException I/O 异常
*/
public static byte[] readln(InputStream in) throws IOException {
int b = in.read();
if (b == -1) {
return null;
}
ByteArrayOutputStream bos = new ByteArrayOutputStream();
while (b != -1) {
switch (b) {
case '\r':
break;
case '\n':
return bos.toByteArray();
default:
bos.write(b);
break;
}
b = in.read();
}
return bos.toByteArray();
}
/**
* 往输出流中写入一行字节码
*
* @param out 输出流
* @param line 一行字节码
* @throws IOException I/O 异常
*/
public static void writeln(OutputStream out, byte[] line) throws IOException {
if (line == null) {
return;
}
out.write(line);
out.write('\r');
out.write('\n');
}
/**
* 关闭资源，等效于XKit.close(closeable, true);
*
* @param closeable 资源
*/
public static void close(Closeable closeable) {
try {
close(closeable, true);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
/**
* 关闭资源
*
* @param closeable 资源
* @param quietly 是否安静关闭，即捕获到关闭异常时是否忽略
* @throws IOException 当quietly == false, 时捕获到的I/O异常将会往外抛
*/
public static void close(Closeable closeable, boolean quietly) throws IOException {
if (closeable == null) return;
try {
closeable.close();
} catch (IOException e) {
if (!quietly) throw e;
}
}
/**
* 输入流传输到输出流
*
* @param in 输入流
* @param out 输出流
* @return 传输长度
* @throws IOException I/O 异常
*/
public static long transfer(InputStream in, OutputStream out) throws IOException {
long total = 0;
byte[] buffer = new byte[4096];
int length;
while ((length = in.read(buffer)) != -1) {
out.write(buffer, 0, length);
total += length;
}
out.flush();
return total;
}
/**
* reader传输到writer
*
* @param reader reader
* @param writer writer
* @return 传输长度
* @throws IOException I/O 异常
*/
public static long transfer(Reader reader, Writer writer) throws IOException {
long total = 0;
char[] buffer = new char[4096];
int length;
while ((length = reader.read(buffer)) != -1) {
writer.write(buffer, 0, length);
total += length;
}
writer.flush();
return total;
}
/**
* 输入流传输到文件
*
* @param in 输入流
* @param file 文件
* @return 传输长度
* @throws IOException I/O 异常
*/
public static long transfer(InputStream in, File file) throws IOException {
OutputStream out = null;
try {
out = new FileOutputStream(file);
return transfer(in, out);
} finally {
close(out);
}
}
/**
* reader传输到文件
*
* @param reader reader
* @param file 文件
* @return 传输长度
* @throws IOException I/O 异常
*/
public static long transfer(Reader reader, File file) throws IOException {
OutputStream out = null;
Writer writer = null;
try {
out = new FileOutputStream(file);
writer = new OutputStreamWriter(out);
return transfer(reader, writer);
} finally {
close(writer);
close(out);
}
}
/**
* 删除文件，如果是目录将不递归删除子文件或目录，等效于delete(file, false);
*
* @param file 文件/目录
* @return 是否删除成功
*/
public static boolean delete(File file) {
return delete(file, false);
}
/**
* 删除文件，如果是目录将递归删除子文件或目录
*
* @param file 文件/目录
* @param recursively 递归
* @return 是否删除成功
*/
public static boolean delete(File file, boolean recursively) {
if (file.isDirectory() && recursively) {
boolean deleted = true;
File[] files = file.listFiles();
for (int i = 0; files != null && i < files.length; i++) {
deleted &= delete(files[i], true);
}
return deleted && file.delete();
} else {
return file.delete();
}
}
/**
* 根据密码生成密钥
*
* @param password 密码
* @return 密钥
* @throws NoSuchAlgorithmException 没有该密钥算法
*/
public static Key key(String password) throws NoSuchAlgorithmException {
return key(Consts.DEFAULT_ALGORITHM, Consts.DEFAULT_KEYSIZE, Consts.DEFAULT_IVSIZE, password);
}
/**
* 根据密码生成密钥
*
* @param algorithm 密钥算法
* @param password 密码
* @return 密钥
* @throws NoSuchAlgorithmException 没有该密钥算法
*/
public static Key key(String algorithm, String password) throws NoSuchAlgorithmException {
return key(algorithm, Consts.DEFAULT_KEYSIZE, Consts.DEFAULT_IVSIZE, password);
}
/**
* 根据密码生成密钥
*
* @param algorithm 密钥算法
* @param keysize 密钥长度
* @param password 密码
* @return 密钥
* @throws NoSuchAlgorithmException 没有该密钥算法
*/
public static Key key(String algorithm, int keysize, String password) throws NoSuchAlgorithmException {
return key(algorithm, keysize, Consts.DEFAULT_IVSIZE, password);
}
/**
* 根据密码生成密钥
*
* @param algorithm 密钥算法
* @param keysize 密钥长度
* @param ivsize 向量长度
* @param password 密码
* @return 密钥
* @throws NoSuchAlgorithmException 没有该密钥算法
*/
public static Key key(String algorithm, int keysize, int ivsize, String password) throws NoSuchAlgorithmException {
MessageDigest sha512 = MessageDigest.getInstance("SHA-512");
byte[] seed = sha512.digest(password.getBytes());
KeyGenerator generator = KeyGenerator.getInstance(algorithm.split("[/]")[0]);
SecureRandom random = new SecureRandom(seed);
generator.init(keysize, random);
SecretKey key = generator.generateKey();
generator.init(ivsize, random);
SecretKey iv = generator.generateKey();
return new SymmetricSecureKey(algorithm, keysize, ivsize, password, key.getEncoded(), iv.getEncoded());
}
public static void retainKey(Key key, Attributes attributes) {
attributes.putValue(Consts.XJAR_ALGORITHM_KEY, key.getAlgorithm());
attributes.putValue(Consts.XJAR_KEYSIZE_KEY, String.valueOf(key.getKeysize()));
attributes.putValue(Consts.XJAR_IVSIZE_KEY, String.valueOf(key.getIvsize()));
attributes.putValue(Consts.XJAR_PASSWORD_KEY, key.getPassword());
}
public static void removeKey(Attributes attributes) {
attributes.remove(new Attributes.Name(Consts.XJAR_ALGORITHM_KEY));
attributes.remove(new Attributes.Name(Consts.XJAR_KEYSIZE_KEY));
attributes.remove(new Attributes.Name(Consts.XJAR_IVSIZE_KEY));
attributes.remove(new Attributes.Name(Consts.XJAR_PASSWORD_KEY));
}
/**
* 创建多个子过滤器AND连接的混合过滤器
*
* @param 对象
* @return 多个子过滤器AND连接的混合过滤器
*/
public static AllComplex all() {
return new AllComplex<>();
}
/**
* 创建多个子过滤器AND连接的混合过滤器
*
* @param 对象
* @param filters 子过滤器
* @return 多个子过滤器AND连接的混合过滤器
*/
public static AllComplex all(Collection> filters) {
return new AllComplex<>(filters);
}
/**
* 创建多个子过滤器AND连接的混合过滤器
*
* @param 对象
* @return 多个子过滤器AND连接的混合过滤器
*/
public static AllComplex and() {
return new AllComplex<>();
}
/**
* 创建多个子过滤器AND连接的混合过滤器
*
* @param 对象
* @param filters 子过滤器
* @return 多个子过滤器AND连接的混合过滤器
*/
public static AllComplex and(Collection> filters) {
return new AllComplex<>(filters);
}
/**
* 创建多个子过滤器OR连接的混合过滤器
*
* @param 对象
* @return 多个子过滤器OR连接的混合过滤器
*/
public static AnyComplex any() {
return new AnyComplex<>();
}
/**
* 创建多个子过滤器OR连接的混合过滤器
*
* @param 对象
* @param filters 子过滤器
* @return 多个子过滤器OR连接的混合过滤器
*/
public static AnyComplex any(Collection> filters) {
return new AnyComplex<>(filters);
}
/**
* 创建多个子过滤器OR连接的混合过滤器
*
* @param 对象
* @return 多个子过滤器OR连接的混合过滤器
*/
public static AnyComplex or() {
return new AnyComplex<>();
}
/**
* 创建多个子过滤器OR连接的混合过滤器
*
* @param 对象
* @param filters 子过滤器
* @return 多个子过滤器OR连接的混合过滤器
*/
public static AnyComplex or(Collection> filters) {
return new AnyComplex<>(filters);
}
/**
* 创建非门逻辑运算过滤器，实际上就是将委派过滤器的过滤结果取反
*
* @param 对象
* @param filter 委派过滤器
* @param 记录类型
* @return 非门逻辑过滤器
*/
public static Complex not(Complex filter) {
return new NotComplex<>(filter);
}
public static boolean isRelative(String path) {
return !isAbsolute(path);
}
public static boolean isAbsolute(String path) {
if (path.startsWith("/")) {
return true;
}
Set roots = new HashSet<>();
Collections.addAll(roots, File.listRoots());
File root = new File(path);
while (root.getParentFile() != null) {
root = root.getParentFile();
}
return roots.contains(root);
}
public static String absolutize(String path) {
return normalize(isAbsolute(path) ? path : System.getProperty("user.dir") + File.separator + path);
}
public static String normalize(String path) {
return path.replaceAll("[/\\\\]+", "/");
}
}
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