849 lines
23 KiB
Java
849 lines
23 KiB
Java
package net.filebot.util;
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import static java.nio.charset.StandardCharsets.*;
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import static java.util.Arrays.*;
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import static java.util.Collections.*;
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import static net.filebot.Logging.*;
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import java.io.BufferedInputStream;
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import java.io.File;
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import java.io.FileFilter;
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import java.io.FileInputStream;
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import java.io.FilenameFilter;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.io.Reader;
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import java.math.BigInteger;
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import java.nio.ByteBuffer;
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import java.nio.channels.FileChannel;
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import java.nio.charset.StandardCharsets;
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import java.nio.file.AtomicMoveNotSupportedException;
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import java.nio.file.FileVisitOption;
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import java.nio.file.FileVisitResult;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.nio.file.SimpleFileVisitor;
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import java.nio.file.StandardCopyOption;
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import java.nio.file.StandardOpenOption;
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import java.nio.file.attribute.BasicFileAttributes;
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import java.security.MessageDigest;
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import java.security.NoSuchAlgorithmException;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.Comparator;
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import java.util.EnumSet;
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import java.util.HashMap;
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import java.util.Iterator;
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import java.util.LinkedList;
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import java.util.List;
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import java.util.Map;
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import java.util.Scanner;
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import java.util.SortedMap;
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import java.util.TreeMap;
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import java.util.TreeSet;
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import java.util.logging.Level;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import com.ibm.icu.text.CharsetDetector;
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import com.ibm.icu.text.CharsetMatch;
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public final class FileUtilities {
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public static File moveRename(File source, File destination) throws IOException {
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// resolve destination
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destination = resolveDestination(source, destination, true);
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if (source.isDirectory()) {
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// move folder
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org.apache.commons.io.FileUtils.moveDirectory(source, destination);
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return destination;
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}
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// on Windows, use ATOMIC_MOVE which allows us to rename files even if only lower/upper-case changes (without ATOMIC_MOVE the operation would be ignored)
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// but ATOMIC_MOVE can only work for files on the same drive, if that is not the case there is no point trying move with ATOMIC_MOVE
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if (File.separator.equals("\\") && source.equals(destination)) {
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try {
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return Files.move(source.toPath(), destination.toPath(), StandardCopyOption.ATOMIC_MOVE).toFile();
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} catch (AtomicMoveNotSupportedException e) {
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debug.log(Level.WARNING, e.toString());
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}
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}
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// Linux and Mac OS X
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return Files.move(source.toPath(), destination.toPath(), StandardCopyOption.REPLACE_EXISTING).toFile();
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}
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public static File copyAs(File source, File destination) throws IOException {
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// resolve destination
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destination = resolveDestination(source, destination, true);
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if (source.isDirectory()) {
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// copy folder
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org.apache.commons.io.FileUtils.copyDirectory(source, destination);
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return destination;
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}
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// copy file
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return Files.copy(source.toPath(), destination.toPath(), StandardCopyOption.REPLACE_EXISTING).toFile();
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}
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public static File resolveDestination(File source, File destination) {
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// resolve destination
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if (!destination.isAbsolute()) {
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// same folder, different name
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destination = new File(source.getParentFile(), destination.getPath());
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}
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return destination;
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}
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public static File resolveDestination(File source, File destination, boolean mkdirs) throws IOException {
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// resolve destination
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if (!destination.isAbsolute()) {
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// same folder, different name
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destination = new File(source.getParentFile(), destination.getPath());
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}
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// create parent folder if necessary
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if (mkdirs) {
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// make sure that the folder structure is created, and throw exception if the folder structure can't be created
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Files.createDirectories(destination.getParentFile().toPath());
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}
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return destination;
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}
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public static File createRelativeSymlink(File link, File target, boolean relativize) throws IOException {
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if (relativize) {
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// make sure we're working with the full path
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link = link.getCanonicalFile();
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target = target.getCanonicalFile();
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try {
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target = link.getParentFile().toPath().relativize(target.toPath()).toFile();
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} catch (Throwable e) {
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// unable to relativize link target
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}
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}
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// create symlink via NIO.2
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return Files.createSymbolicLink(link.toPath(), target.toPath()).toFile();
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}
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public static File createHardLinkStructure(File link, File target) throws IOException {
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if (target.isFile()) {
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return Files.createLink(link.toPath(), target.toPath()).toFile();
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}
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// if the target is a directory, recreate the structure and hardlink each file item
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final Path source = target.getCanonicalFile().toPath();
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final Path destination = link.getCanonicalFile().toPath();
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Files.walkFileTree(source, EnumSet.of(FileVisitOption.FOLLOW_LINKS), FILE_WALK_MAX_DEPTH, new SimpleFileVisitor<Path>() {
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@Override
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public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
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Path linkFile = destination.resolve(source.relativize(file));
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Files.createDirectories(linkFile.getParent());
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Files.createLink(linkFile, file);
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return FileVisitResult.CONTINUE;
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}
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});
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return destination.toFile();
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}
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public static boolean delete(File file) {
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// delete files or files
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return org.apache.commons.io.FileUtils.deleteQuietly(file);
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}
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public static void createFolders(File folder) throws IOException {
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if (!folder.isDirectory()) {
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Files.createDirectories(folder.toPath());
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}
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}
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public static void createFileIfNotExists(File file) throws IOException {
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if (!file.isFile()) {
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// create parent folder structure if necessary & create file
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Files.createDirectories(file.getParentFile().toPath());
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Files.createFile(file.toPath());
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}
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}
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public static byte[] readFile(File source) throws IOException {
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long size = source.length();
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if (size < 0 || size > Integer.MAX_VALUE) {
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throw new IllegalArgumentException("Unable to read file: " + source);
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}
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try (InputStream in = new FileInputStream(source)) {
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byte[] data = new byte[(int) size];
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int position = 0;
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int read = 0;
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while (position < data.length && (read = in.read(data, position, data.length - position)) >= 0) {
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position += read;
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}
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return data;
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}
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}
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public static String readTextFile(File file) throws IOException {
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try (Reader reader = new UnicodeReader(new BufferedInputStream(new FileInputStream(file), BUFFER_SIZE), false, StandardCharsets.UTF_8)) {
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StringBuilder text = new StringBuilder();
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char[] buffer = new char[BUFFER_SIZE];
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int read = 0;
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while ((read = reader.read(buffer)) >= 0) {
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text.append(buffer, 0, read);
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}
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return text.toString();
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}
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}
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public static File writeFile(ByteBuffer data, File destination) throws IOException {
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try (FileChannel channel = FileChannel.open(destination.toPath(), StandardOpenOption.CREATE, StandardOpenOption.TRUNCATE_EXISTING, StandardOpenOption.WRITE)) {
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channel.write(data);
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}
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return destination;
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}
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public static List<String[]> readCSV(InputStream source, String charsetName, String pattern) {
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try (Scanner scanner = new Scanner(source, charsetName)) {
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Pattern separator = Pattern.compile(pattern);
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List<String[]> rows = new ArrayList<String[]>(65536);
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while (scanner.hasNextLine()) {
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rows.add(separator.split(scanner.nextLine()));
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}
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return rows;
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}
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}
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public static Reader createTextReader(File file) throws IOException {
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CharsetDetector detector = new CharsetDetector();
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detector.setDeclaredEncoding("UTF-8"); // small boost for UTF-8 as default encoding
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detector.setText(new BufferedInputStream(new FileInputStream(file)));
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CharsetMatch charset = detector.detect();
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if (charset != null)
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return charset.getReader();
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// assume UTF-8 by default
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return new InputStreamReader(new FileInputStream(file), StandardCharsets.UTF_8);
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}
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public static String getText(ByteBuffer data) throws IOException {
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CharsetDetector detector = new CharsetDetector();
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detector.setDeclaredEncoding("UTF-8"); // small boost for UTF-8 as default encoding
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detector.setText(new ByteBufferInputStream(data));
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CharsetMatch charset = detector.detect();
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if (charset != null) {
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try {
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return charset.getString();
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} catch (RuntimeException e) {
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throw new IOException("Failed to read text", e);
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}
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}
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// assume UTF-8 by default
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return UTF_8.decode(data).toString();
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}
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/**
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* Pattern used for matching file extensions.
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*
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* e.g. "file.txt" -> match "txt", ".hidden" -> no match
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*/
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public static final Pattern EXTENSION = Pattern.compile("(?<=.[.])\\p{Alnum}+$");
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public static final String UNC_PREFIX = "\\\\";
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public static String getExtension(File file) {
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if (file.isDirectory())
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return null;
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return getExtension(file.getName());
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}
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public static String getExtension(String name) {
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Matcher matcher = EXTENSION.matcher(name);
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if (matcher.find()) {
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// extension without leading '.'
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return matcher.group();
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}
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// no extension
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return null;
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}
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public static boolean hasExtension(File file, String... extensions) {
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// avoid native call for speed, if possible
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return hasExtension(file.getName(), extensions) && !file.isDirectory();
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}
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public static boolean hasExtension(String filename, String... extensions) {
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for (String it : extensions) {
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if (filename.length() - it.length() >= 2 && filename.charAt(filename.length() - it.length() - 1) == '.') {
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String tail = filename.substring(filename.length() - it.length(), filename.length());
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if (tail.equalsIgnoreCase(it)) {
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return true;
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}
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}
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}
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return false;
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}
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public static String getNameWithoutExtension(String name) {
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Matcher matcher = EXTENSION.matcher(name);
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if (matcher.find()) {
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return name.substring(0, matcher.start() - 1);
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}
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// no extension, return given name
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return name;
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}
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public static String getName(File file) {
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if (file.getName().isEmpty() || UNC_PREFIX.equals(file.getParent()))
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return getFolderName(file);
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return getNameWithoutExtension(file.getName());
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}
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public static String getFolderName(File file) {
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if (UNC_PREFIX.equals(file.getParent()))
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return file.toString();
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if (file.getName().length() > 0)
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return file.getName();
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// file might be a drive (only has a path, but no name)
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return replacePathSeparators(file.toString(), "");
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}
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public static boolean isDerived(File derivate, File prime) {
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return isDerived(getName(derivate), prime);
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}
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public static boolean isDerived(String derivate, File prime) {
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String base = getName(prime).trim().toLowerCase();
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derivate = derivate.trim().toLowerCase();
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return derivate.startsWith(base);
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}
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public static boolean isDerivedByExtension(File derivate, File prime) {
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return isDerivedByExtension(getName(derivate), prime);
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}
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public static boolean isDerivedByExtension(String derivate, File prime) {
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String base = getName(prime).trim().toLowerCase();
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derivate = derivate.trim().toLowerCase();
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if (derivate.equals(base))
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return true;
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while (derivate.length() > base.length() && getExtension(derivate) != null) {
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derivate = getNameWithoutExtension(derivate);
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if (derivate.equals(base))
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return true;
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}
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return false;
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}
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public static boolean containsOnly(Collection<File> files, FileFilter filter) {
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if (files.isEmpty()) {
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return false;
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}
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for (File file : files) {
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if (!filter.accept(file))
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return false;
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}
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return true;
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}
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public static List<File> sortByUniquePath(Collection<File> files) {
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// sort by unique lower-case paths
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TreeSet<File> sortedSet = new TreeSet<File>(CASE_INSENSITIVE_PATH);
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sortedSet.addAll(files);
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return new ArrayList<File>(sortedSet);
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}
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public static List<File> filter(Iterable<File> files, FileFilter... filters) {
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List<File> accepted = new ArrayList<File>();
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for (File file : files) {
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for (FileFilter filter : filters) {
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if (filter.accept(file)) {
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accepted.add(file);
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break;
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}
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}
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}
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return accepted;
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}
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public static FileFilter not(FileFilter filter) {
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return new NotFileFilter(filter);
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}
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public static List<File> listPath(File file) {
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return listPathTail(file, Integer.MAX_VALUE, false);
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}
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public static List<File> listPathTail(File file, int tailSize, boolean reverse) {
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LinkedList<File> nodes = new LinkedList<File>();
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File node = file;
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for (int i = 0; node != null && i < tailSize && !UNC_PREFIX.equals(node.toString()); i++, node = node.getParentFile()) {
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if (reverse) {
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nodes.addLast(node);
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} else {
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nodes.addFirst(node);
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}
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}
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return nodes;
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}
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public static File getRelativePathTail(File file, int tailSize) {
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File f = null;
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for (File it : listPathTail(file, tailSize, false)) {
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if (it.getParentFile() != null) {
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f = new File(f, it.getName());
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}
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}
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return f;
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}
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public static List<File> getFileSystemRoots() {
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File[] roots = File.listRoots();
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// roots array may be null if folder permissions do not allow listing of files
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if (roots == null) {
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roots = new File[0];
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}
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return asList(roots);
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}
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public static List<File> getChildren(File folder) {
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return getChildren(folder, null, null);
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}
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public static List<File> getChildren(File folder, FileFilter filter) {
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return getChildren(folder, filter, null);
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}
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public static List<File> getChildren(File folder, FileFilter filter, Comparator<File> sorter) {
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File[] files = filter == null ? folder.listFiles() : folder.listFiles(filter);
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// children array may be null if folder permissions do not allow listing of files
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if (files == null) {
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files = new File[0];
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} else if (sorter != null) {
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sort(files, sorter);
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}
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return asList(files);
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}
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public static final int FILE_WALK_MAX_DEPTH = 32;
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public static List<File> listFiles(File... folders) {
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return listFiles(asList(folders));
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}
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public static List<File> listFiles(Iterable<File> folders) {
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return listFiles(folders, FILE_WALK_MAX_DEPTH, false, true, false);
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}
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public static List<File> listFolders(Iterable<File> folders) {
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return listFiles(folders, FILE_WALK_MAX_DEPTH, false, false, true);
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}
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public static List<File> listFiles(Iterable<File> folders, int maxDepth, boolean addHidden, boolean addFiles, boolean addFolders) {
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List<File> files = new ArrayList<File>();
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// collect files from directory tree
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for (File it : folders) {
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if (!addHidden && it.isHidden()) // ignore hidden files
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continue;
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if (it.isDirectory()) {
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if (addFolders) {
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files.add(it);
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}
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listFiles(it, files, 0, maxDepth, addHidden, addFiles, addFolders);
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} else if (addFiles && it.isFile()) {
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files.add(it);
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}
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}
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return files;
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}
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private static void listFiles(File folder, List<File> files, int depth, int maxDepth, boolean addHidden, boolean addFiles, boolean addFolders) {
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if (depth > maxDepth)
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return;
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for (File it : getChildren(folder)) {
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if (!addHidden && it.isHidden()) // ignore hidden files
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continue;
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if (it.isDirectory()) {
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if (addFolders) {
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files.add(it);
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}
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listFiles(it, files, depth + 1, maxDepth, addHidden, addFiles, addFolders);
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} else if (addFiles) {
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files.add(it);
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}
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}
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}
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public static SortedMap<File, List<File>> mapByFolder(Iterable<File> files) {
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SortedMap<File, List<File>> map = new TreeMap<File, List<File>>();
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for (File file : files) {
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File key = file.getParentFile();
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if (key == null) {
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throw new IllegalArgumentException("Parent is null: " + file);
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}
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List<File> valueList = map.get(key);
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if (valueList == null) {
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valueList = new ArrayList<File>();
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map.put(key, valueList);
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}
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valueList.add(file);
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}
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return map;
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}
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public static Map<String, List<File>> mapByExtension(Iterable<File> files) {
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Map<String, List<File>> map = new HashMap<String, List<File>>();
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for (File file : files) {
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String key = getExtension(file);
|
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if (key != null) {
|
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key = key.toLowerCase();
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}
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List<File> valueList = map.get(key);
|
|
if (valueList == null) {
|
|
valueList = new ArrayList<File>();
|
|
map.put(key, valueList);
|
|
}
|
|
|
|
valueList.add(file);
|
|
}
|
|
|
|
return map;
|
|
}
|
|
|
|
/**
|
|
* Invalid file name characters: \, /, :, *, ?, ", <, >, |, \r, \n and excessive characters
|
|
*/
|
|
public static final Pattern ILLEGAL_CHARACTERS = Pattern.compile("[\\\\/:*?\"<>|\\r\\n]|\\p{Cntrl}|\\s+$|(?<=[^.])[.]+$|(?<=.{250})(.+)(?=[.]\\p{Alnum}{3}$)");
|
|
|
|
/**
|
|
* Strip file name of invalid characters
|
|
*
|
|
* @param filename
|
|
* original filename
|
|
* @return valid file name stripped of invalid characters
|
|
*/
|
|
public static String validateFileName(CharSequence filename) {
|
|
// strip invalid characters from file name
|
|
return ILLEGAL_CHARACTERS.matcher(filename).replaceAll("").replaceAll("\\s+", " ").trim();
|
|
}
|
|
|
|
public static boolean isInvalidFileName(CharSequence filename) {
|
|
// check if file name contains any illegal characters
|
|
return ILLEGAL_CHARACTERS.matcher(filename).find();
|
|
}
|
|
|
|
public static File validateFileName(File file) {
|
|
// windows drives (e.g. c:, d:, etc.) are never invalid because name will be an empty string
|
|
if (!isInvalidFileName(file.getName()))
|
|
return file;
|
|
|
|
// validate file name only
|
|
return new File(file.getParentFile(), validateFileName(file.getName()));
|
|
}
|
|
|
|
public static File validateFilePath(File path) {
|
|
Iterator<File> nodes = listPath(path).iterator();
|
|
|
|
// initialize with root node, keep original root object if possible (so we don't loose the drive on windows)
|
|
File validatedPath = validateFileName(nodes.next());
|
|
|
|
// validate the rest of the path
|
|
while (nodes.hasNext()) {
|
|
validatedPath = new File(validatedPath, validateFileName(nodes.next().getName()));
|
|
}
|
|
|
|
return validatedPath;
|
|
}
|
|
|
|
public static boolean isInvalidFilePath(File path) {
|
|
// check if file name contains any illegal characters
|
|
for (File node = path; node != null; node = node.getParentFile()) {
|
|
if (isInvalidFileName(node.getName()))
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
public static String normalizePathSeparators(String path) {
|
|
// special handling for UNC paths
|
|
if (path.startsWith(UNC_PREFIX) && path.length() > 2) {
|
|
return UNC_PREFIX + path.substring(2).replace('\\', '/');
|
|
}
|
|
return path.replace('\\', '/');
|
|
}
|
|
|
|
private static final Pattern PATH_SEPARATORS = Pattern.compile("\\s*[\\\\/]+\\s*");
|
|
|
|
public static String replacePathSeparators(CharSequence path) {
|
|
return replacePathSeparators(path, " ");
|
|
}
|
|
|
|
public static String replacePathSeparators(CharSequence path, String replacement) {
|
|
return PATH_SEPARATORS.matcher(path).replaceAll(replacement);
|
|
}
|
|
|
|
public static String md5(String string) {
|
|
return md5(StandardCharsets.UTF_8.encode(string));
|
|
}
|
|
|
|
public static String md5(byte[] data) {
|
|
return md5(ByteBuffer.wrap(data));
|
|
}
|
|
|
|
public static String md5(ByteBuffer data) {
|
|
try {
|
|
MessageDigest hash = MessageDigest.getInstance("MD5");
|
|
hash.update(data);
|
|
return String.format("%032x", new BigInteger(1, hash.digest())); // as hex string
|
|
} catch (NoSuchAlgorithmException e) {
|
|
throw new RuntimeException(e);
|
|
}
|
|
}
|
|
|
|
public static List<File> asFileList(Object... paths) {
|
|
List<File> files = new ArrayList<File>(paths.length);
|
|
for (Object it : paths) {
|
|
if (it instanceof CharSequence) {
|
|
files.add(new File(it.toString()));
|
|
} else if (it instanceof File) {
|
|
files.add((File) it);
|
|
} else if (it instanceof Path) {
|
|
files.add(((Path) it).toFile());
|
|
} else if (it instanceof Collection<?>) {
|
|
files.addAll(asFileList(((Collection<?>) it).toArray())); // flatten object structure
|
|
}
|
|
}
|
|
return files;
|
|
}
|
|
|
|
public static final int BUFFER_SIZE = 64 * 1024;
|
|
|
|
public static final long KILO = 1024;
|
|
public static final long MEGA = 1024 * KILO;
|
|
public static final long GIGA = 1024 * MEGA;
|
|
|
|
public static String formatSize(long size) {
|
|
if (size >= GIGA)
|
|
return String.format("%,d GB", size / GIGA);
|
|
else if (size >= MEGA)
|
|
return String.format("%,d MB", size / MEGA);
|
|
else if (size >= KILO)
|
|
return String.format("%,d KB", size / KILO);
|
|
else
|
|
return String.format("%,d Byte", size);
|
|
}
|
|
|
|
public static final FileFilter FOLDERS = new FileFilter() {
|
|
|
|
@Override
|
|
public boolean accept(File file) {
|
|
return file.isDirectory();
|
|
}
|
|
};
|
|
|
|
public static final FileFilter FILES = new FileFilter() {
|
|
|
|
@Override
|
|
public boolean accept(File file) {
|
|
return file.isFile();
|
|
}
|
|
};
|
|
|
|
public static final FileFilter TEMPORARY = new FileFilter() {
|
|
|
|
private final String tmpdir = System.getProperty("java.io.tmpdir");
|
|
|
|
@Override
|
|
public boolean accept(File file) {
|
|
return file.getAbsolutePath().startsWith(tmpdir);
|
|
}
|
|
};
|
|
|
|
public static final FileFilter NOT_HIDDEN = new FileFilter() {
|
|
|
|
@Override
|
|
public boolean accept(File file) {
|
|
return !file.isHidden();
|
|
}
|
|
};
|
|
|
|
public static class ParentFilter implements FileFilter {
|
|
|
|
private final File folder;
|
|
|
|
public ParentFilter(File folder) {
|
|
this.folder = folder;
|
|
}
|
|
|
|
@Override
|
|
public boolean accept(File file) {
|
|
return listPath(file).contains(folder);
|
|
}
|
|
}
|
|
|
|
public static class ExtensionFileFilter implements FileFilter, FilenameFilter {
|
|
|
|
public static final List<String> WILDCARD = singletonList("*");
|
|
|
|
private final String[] extensions;
|
|
|
|
public ExtensionFileFilter(String... extensions) {
|
|
this.extensions = extensions.clone();
|
|
}
|
|
|
|
public ExtensionFileFilter(Collection<String> extensions) {
|
|
this.extensions = extensions.toArray(new String[0]);
|
|
}
|
|
|
|
@Override
|
|
public boolean accept(File dir, String name) {
|
|
return accept(name);
|
|
}
|
|
|
|
@Override
|
|
public boolean accept(File file) {
|
|
return accept(file.getName());
|
|
}
|
|
|
|
public boolean accept(String name) {
|
|
return acceptAny() || hasExtension(name, extensions);
|
|
}
|
|
|
|
public boolean acceptAny() {
|
|
return extensions.length == 1 && WILDCARD.get(0).equals(extensions[0]);
|
|
}
|
|
|
|
public boolean acceptExtension(String extension) {
|
|
if (acceptAny()) {
|
|
return true;
|
|
}
|
|
|
|
for (String other : extensions) {
|
|
if (other.equalsIgnoreCase(extension)) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
public String extension() {
|
|
return extensions[0];
|
|
}
|
|
|
|
public String[] extensions() {
|
|
return extensions.clone();
|
|
}
|
|
|
|
@Override
|
|
public String toString() {
|
|
StringBuilder s = new StringBuilder();
|
|
for (String it : extensions) {
|
|
if (s.length() > 0) {
|
|
s.append(", ");
|
|
}
|
|
s.append("*.").append(it);
|
|
}
|
|
return s.toString();
|
|
}
|
|
}
|
|
|
|
public static class RegexFileFilter implements FileFilter, FilenameFilter {
|
|
|
|
private final Pattern pattern;
|
|
|
|
public RegexFileFilter(Pattern pattern) {
|
|
this.pattern = pattern;
|
|
}
|
|
|
|
@Override
|
|
public boolean accept(File dir, String name) {
|
|
return pattern.matcher(name).find();
|
|
}
|
|
|
|
@Override
|
|
public boolean accept(File file) {
|
|
return accept(file.getParentFile(), file.getName());
|
|
}
|
|
}
|
|
|
|
public static class NotFileFilter implements FileFilter {
|
|
|
|
public FileFilter filter;
|
|
|
|
public NotFileFilter(FileFilter filter) {
|
|
this.filter = filter;
|
|
}
|
|
|
|
@Override
|
|
public boolean accept(File file) {
|
|
return !filter.accept(file);
|
|
}
|
|
}
|
|
|
|
public static final Comparator<File> CASE_INSENSITIVE_PATH = new Comparator<File>() {
|
|
|
|
@Override
|
|
public int compare(File o1, File o2) {
|
|
return o1.getPath().compareToIgnoreCase(o2.getPath());
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Dummy constructor to prevent instantiation.
|
|
*/
|
|
private FileUtilities() {
|
|
throw new UnsupportedOperationException();
|
|
}
|
|
|
|
}
|