Examples with PosixFileAttributeView java.nio.file.attribute.PosixFileAttributeView used on opensource projects

Example 1 with PosixFileAttributeView

use of java.nio.file.attribute.PosixFileAttributeView in project elasticsearch by elastic.

the class InstallPluginCommand method installConfig.

/**
     * Copies the files from {@code tmpConfigDir} into {@code destConfigDir}.
     * Any files existing in both the source and destination will be skipped.
     */
private void installConfig(PluginInfo info, Path tmpConfigDir, Path destConfigDir) throws Exception {
    if (Files.isDirectory(tmpConfigDir) == false) {
        throw new UserException(ExitCodes.IO_ERROR, "config in plugin " + info.getName() + " is not a directory");
    }
    Files.createDirectories(destConfigDir);
    setFileAttributes(destConfigDir, CONFIG_DIR_PERMS);
    final PosixFileAttributeView destConfigDirAttributesView = Files.getFileAttributeView(destConfigDir.getParent(), PosixFileAttributeView.class);
    final PosixFileAttributes destConfigDirAttributes = destConfigDirAttributesView != null ? destConfigDirAttributesView.readAttributes() : null;
    if (destConfigDirAttributes != null) {
        setOwnerGroup(destConfigDir, destConfigDirAttributes);
    }
    try (DirectoryStream<Path> stream = Files.newDirectoryStream(tmpConfigDir)) {
        for (Path srcFile : stream) {
            if (Files.isDirectory(srcFile)) {
                throw new UserException(ExitCodes.DATA_ERROR, "Directories not allowed in config dir for plugin " + info.getName());
            }
            Path destFile = destConfigDir.resolve(tmpConfigDir.relativize(srcFile));
            if (Files.exists(destFile) == false) {
                Files.copy(srcFile, destFile);
                setFileAttributes(destFile, CONFIG_FILES_PERMS);
                if (destConfigDirAttributes != null) {
                    setOwnerGroup(destFile, destConfigDirAttributes);
                }
            }
        }
    }
    // clean up what we just copied
    IOUtils.rm(tmpConfigDir);
}

Example 2 with PosixFileAttributeView

use of java.nio.file.attribute.PosixFileAttributeView in project elasticsearch by elastic.

the class InstallPluginCommand method setOwnerGroup.

private static void setOwnerGroup(final Path path, final PosixFileAttributes attributes) throws IOException {
    Objects.requireNonNull(attributes);
    PosixFileAttributeView fileAttributeView = Files.getFileAttributeView(path, PosixFileAttributeView.class);
    assert fileAttributeView != null;
    fileAttributeView.setOwner(attributes.owner());
    fileAttributeView.setGroup(attributes.group());
}

Example 3 with PosixFileAttributeView

use of java.nio.file.attribute.PosixFileAttributeView in project ignite by apache.

the class LocalFileSystemUtils method updateProperties.

/**
     * Update file properties.
     *
     * @param file File.
     * @param grp Group.
     * @param perm Permissions.
     */
public static void updateProperties(File file, String grp, String perm) {
    PosixFileAttributeView attrs = Files.getFileAttributeView(file.toPath(), PosixFileAttributeView.class);
    if (attrs == null)
        throw new UnsupportedOperationException("Posix file attributes not available");
    if (grp != null) {
        try {
            UserPrincipalLookupService lookupService = FileSystems.getDefault().getUserPrincipalLookupService();
            GroupPrincipal grp0 = lookupService.lookupPrincipalByGroupName(grp);
            attrs.setGroup(grp0);
        } catch (IOException e) {
            throw new IgfsException("Update the '" + IgfsUtils.PROP_GROUP_NAME + "' property is failed.", e);
        }
    }
    if (perm != null) {
        int perm0 = Integer.parseInt(perm, 8);
        Set<PosixFilePermission> permSet = new HashSet<>(9);
        for (int i = 0; i < LocalFileSystemUtils.POSIX_PERMISSIONS.length; ++i) {
            if ((perm0 & (1 << i)) != 0)
                permSet.add(LocalFileSystemUtils.POSIX_PERMISSIONS[i]);
        }
        try {
            attrs.setPermissions(permSet);
        } catch (IOException e) {
            throw new IgfsException("Update the '" + IgfsUtils.PROP_PERMISSION + "' property is failed.", e);
        }
    }
}

Example 4 with PosixFileAttributeView

use of java.nio.file.attribute.PosixFileAttributeView in project elasticsearch by elastic.

the class KeyStoreWrapper method save.

/** Write the keystore to the given config directory. */
void save(Path configDir) throws Exception {
    char[] password = this.keystorePassword.get().getPassword();
    SimpleFSDirectory directory = new SimpleFSDirectory(configDir);
    // write to tmp file first, then overwrite
    String tmpFile = KEYSTORE_FILENAME + ".tmp";
    try (IndexOutput output = directory.createOutput(tmpFile, IOContext.DEFAULT)) {
        CodecUtil.writeHeader(output, KEYSTORE_FILENAME, FORMAT_VERSION);
        output.writeByte(password.length == 0 ? (byte) 0 : (byte) 1);
        output.writeString(type);
        output.writeString(secretFactory.getAlgorithm());
        ByteArrayOutputStream keystoreBytesStream = new ByteArrayOutputStream();
        keystore.get().store(keystoreBytesStream, password);
        byte[] keystoreBytes = keystoreBytesStream.toByteArray();
        output.writeInt(keystoreBytes.length);
        output.writeBytes(keystoreBytes, keystoreBytes.length);
        CodecUtil.writeFooter(output);
    }
    Path keystoreFile = keystorePath(configDir);
    Files.move(configDir.resolve(tmpFile), keystoreFile, StandardCopyOption.REPLACE_EXISTING, StandardCopyOption.ATOMIC_MOVE);
    PosixFileAttributeView attrs = Files.getFileAttributeView(keystoreFile, PosixFileAttributeView.class);
    if (attrs != null) {
        // don't rely on umask: ensure the keystore has minimal permissions
        attrs.setPermissions(PosixFilePermissions.fromString("rw-------"));
    }
}

Example 5 with PosixFileAttributeView

use of java.nio.file.attribute.PosixFileAttributeView in project vert.x by eclipse.

the class FileSystemImpl method chownInternal.

protected BlockingAction<Void> chownInternal(String path, String user, String group, Handler<AsyncResult<Void>> handler) {
    Objects.requireNonNull(path);
    return new BlockingAction<Void>(handler) {

        public Void perform() {
            try {
                Path target = vertx.resolveFile(path).toPath();
                UserPrincipalLookupService service = target.getFileSystem().getUserPrincipalLookupService();
                UserPrincipal userPrincipal = user == null ? null : service.lookupPrincipalByName(user);
                GroupPrincipal groupPrincipal = group == null ? null : service.lookupPrincipalByGroupName(group);
                if (groupPrincipal != null) {
                    PosixFileAttributeView view = Files.getFileAttributeView(target, PosixFileAttributeView.class, LinkOption.NOFOLLOW_LINKS);
                    if (view == null) {
                        throw new FileSystemException("Change group of file not supported");
                    }
                    view.setGroup(groupPrincipal);
                }
                if (userPrincipal != null) {
                    Files.setOwner(target, userPrincipal);
                }
            } catch (SecurityException e) {
                throw new FileSystemException("Accessed denied for chown on " + path);
            } catch (IOException e) {
                throw new FileSystemException(e);
            }
            return null;
        }
    };
}