nmode's Git Repositories - signal-cli/blob - src/main/java/org/asamk/signal/util/IOUtils.java

   1 package org.asamk.signal.util;
   2
   3 import java.io.File;
   4 import java.io.IOException;
   5 import java.io.InputStream;
   6 import java.io.StringWriter;
   7 import java.nio.charset.Charset;
   8 import java.nio.file.Files;
   9 import java.nio.file.Path;
  10 import java.nio.file.attribute.PosixFilePermission;
  11 import java.nio.file.attribute.PosixFilePermissions;
  12 import java.util.EnumSet;
  13 import java.util.Set;
  14
  15 import static java.nio.file.attribute.PosixFilePermission.*;
  16
  17 public class IOUtils {
  18
  19     private IOUtils() {
  20     }
  21
  22     public static File createTempFile() throws IOException {
  23         return File.createTempFile("signal_tmp_", ".tmp");
  24     }
  25
  26     public static String readAll(InputStream in, Charset charset) throws IOException {
  27         StringWriter output = new StringWriter();
  28         byte[] buffer = new byte[4096];
  29         int n;
  30         while (-1 != (n = in.read(buffer))) {
  31             output.write(new String(buffer, 0, n, charset));
  32         }
  33         return output.toString();
  34     }
  35
  36     public static void createPrivateDirectories(String directoryPath) throws IOException {
  37         final File file = new File(directoryPath);
  38         if (file.exists()) {
  39             return;
  40         }
  41
  42         final Path path = file.toPath();
  43         try {
  44             Set<PosixFilePermission> perms = EnumSet.of(OWNER_READ, OWNER_WRITE, OWNER_EXECUTE);
  45             Files.createDirectories(path, PosixFilePermissions.asFileAttribute(perms));
  46         } catch (UnsupportedOperationException e) {
  47             Files.createDirectories(path);
  48         }
  49     }
  50
  51     public static void createPrivateFile(String path) throws IOException {
  52         final Path file = new File(path).toPath();
  53         try {
  54             Set<PosixFilePermission> perms = EnumSet.of(OWNER_READ, OWNER_WRITE);
  55             Files.createFile(file, PosixFilePermissions.asFileAttribute(perms));
  56         } catch (UnsupportedOperationException e) {
  57             Files.createFile(file);
  58         }
  59     }
  60 }