Beispiel #1
0
 private void tryToDeletePath(Terminal terminal, Path... paths) {
   for (Path path : paths) {
     try {
       IOUtils.rm(path);
     } catch (IOException e) {
       terminal.printError(e);
     }
   }
 }
Beispiel #2
0
  private void extract(PluginHandle pluginHandle, Terminal terminal, Path pluginFile)
      throws IOException {
    // unzip plugin to a staging temp dir, named for the plugin
    Path tmp = Files.createTempDirectory(environment.tmpFile(), null);
    Path root = tmp.resolve(pluginHandle.name);
    unzipPlugin(pluginFile, root);

    // find the actual root (in case its unzipped with extra directory wrapping)
    root = findPluginRoot(root);

    // read and validate the plugin descriptor
    PluginInfo info = PluginInfo.readFromProperties(root);
    terminal.println(VERBOSE, "%s", info);

    // update name in handle based on 'name' property found in descriptor file
    pluginHandle = new PluginHandle(info.getName(), pluginHandle.version, pluginHandle.user);
    final Path extractLocation = pluginHandle.extractedDir(environment);
    if (Files.exists(extractLocation)) {
      throw new IOException(
          "plugin directory "
              + extractLocation.toAbsolutePath()
              + " already exists. To update the plugin, uninstall it first using 'remove "
              + pluginHandle.name
              + "' command");
    }

    // check for jar hell before any copying
    if (info.isJvm()) {
      jarHellCheck(root, info.isIsolated());
    }

    // install plugin
    FileSystemUtils.copyDirectoryRecursively(root, extractLocation);
    terminal.println("Installed %s into %s", pluginHandle.name, extractLocation.toAbsolutePath());

    // cleanup
    tryToDeletePath(terminal, tmp, pluginFile);

    // take care of bin/ by moving and applying permissions if needed
    Path sourcePluginBinDirectory = extractLocation.resolve("bin");
    Path destPluginBinDirectory = pluginHandle.binDir(environment);
    boolean needToCopyBinDirectory = Files.exists(sourcePluginBinDirectory);
    if (needToCopyBinDirectory) {
      if (Files.exists(destPluginBinDirectory) && !Files.isDirectory(destPluginBinDirectory)) {
        tryToDeletePath(terminal, extractLocation);
        throw new IOException(
            "plugin bin directory " + destPluginBinDirectory + " is not a directory");
      }

      try {
        copyBinDirectory(
            sourcePluginBinDirectory, destPluginBinDirectory, pluginHandle.name, terminal);
      } catch (IOException e) {
        // rollback and remove potentially before installed leftovers
        terminal.printError(
            "Error copying bin directory [%s] to [%s], cleaning up, reason: %s",
            sourcePluginBinDirectory, destPluginBinDirectory, ExceptionsHelper.detailedMessage(e));
        tryToDeletePath(terminal, extractLocation, pluginHandle.binDir(environment));
        throw e;
      }
    }

    Path sourceConfigDirectory = extractLocation.resolve("config");
    Path destConfigDirectory = pluginHandle.configDir(environment);
    boolean needToCopyConfigDirectory = Files.exists(sourceConfigDirectory);
    if (needToCopyConfigDirectory) {
      if (Files.exists(destConfigDirectory) && !Files.isDirectory(destConfigDirectory)) {
        tryToDeletePath(terminal, extractLocation, destPluginBinDirectory);
        throw new IOException(
            "plugin config directory " + destConfigDirectory + " is not a directory");
      }

      try {
        terminal.println(
            VERBOSE, "Found config, moving to %s", destConfigDirectory.toAbsolutePath());
        moveFilesWithoutOverwriting(sourceConfigDirectory, destConfigDirectory, ".new");

        if (Environment.getFileStore(destConfigDirectory)
            .supportsFileAttributeView(PosixFileAttributeView.class)) {
          // We copy owner, group and permissions from the parent ES_CONFIG directory, assuming they
          // were properly set depending
          // on how es was installed in the first place: can be root:elasticsearch (750) if es was
          // installed from rpm/deb packages
          // or most likely elasticsearch:elasticsearch if installed from tar/zip. As for
          // permissions we don't rely on umask.
          final PosixFileAttributes parentDirAttributes =
              Files.getFileAttributeView(
                      destConfigDirectory.getParent(), PosixFileAttributeView.class)
                  .readAttributes();
          // for files though, we make sure not to copy execute permissions from the parent dir and
          // leave them untouched
          final Set<PosixFilePermission> baseFilePermissions = new HashSet<>();
          for (PosixFilePermission posixFilePermission : parentDirAttributes.permissions()) {
            switch (posixFilePermission) {
              case OWNER_EXECUTE:
              case GROUP_EXECUTE:
              case OTHERS_EXECUTE:
                break;
              default:
                baseFilePermissions.add(posixFilePermission);
            }
          }
          Files.walkFileTree(
              destConfigDirectory,
              new SimpleFileVisitor<Path>() {
                @Override
                public FileVisitResult visitFile(Path file, BasicFileAttributes attrs)
                    throws IOException {
                  if (attrs.isRegularFile()) {
                    Set<PosixFilePermission> newFilePermissions =
                        new HashSet<>(baseFilePermissions);
                    Set<PosixFilePermission> currentFilePermissions =
                        Files.getPosixFilePermissions(file);
                    for (PosixFilePermission posixFilePermission : currentFilePermissions) {
                      switch (posixFilePermission) {
                        case OWNER_EXECUTE:
                        case GROUP_EXECUTE:
                        case OTHERS_EXECUTE:
                          newFilePermissions.add(posixFilePermission);
                      }
                    }
                    setPosixFileAttributes(
                        file,
                        parentDirAttributes.owner(),
                        parentDirAttributes.group(),
                        newFilePermissions);
                  }
                  return FileVisitResult.CONTINUE;
                }

                @Override
                public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs)
                    throws IOException {
                  setPosixFileAttributes(
                      dir,
                      parentDirAttributes.owner(),
                      parentDirAttributes.group(),
                      parentDirAttributes.permissions());
                  return FileVisitResult.CONTINUE;
                }
              });
        } else {
          terminal.println(
              VERBOSE, "Skipping posix permissions - filestore doesn't support posix permission");
        }

        terminal.println(
            VERBOSE,
            "Installed %s into %s",
            pluginHandle.name,
            destConfigDirectory.toAbsolutePath());
      } catch (IOException e) {
        terminal.printError(
            "Error copying config directory [%s] to [%s], cleaning up, reason: %s",
            sourceConfigDirectory, destConfigDirectory, ExceptionsHelper.detailedMessage(e));
        tryToDeletePath(terminal, extractLocation, destPluginBinDirectory, destConfigDirectory);
        throw e;
      }
    }
  }