Package org.apache.hadoop.fs.permission

Examples of org.apache.hadoop.fs.permission.FsAction

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        FileStatus stat = fs.getFileStatus(path);
        FsPermission actual = stat.getPermission();
        if (!stat.isDir())
          throw new DiskErrorException("not a directory: "
                                   + path.toString());
        FsAction user = actual.getUserAction();
        if (!user.implies(FsAction.READ))
          throw new DiskErrorException("directory is not readable: "
                                   + path.toString());
        if (!user.implies(FsAction.WRITE))
          throw new DiskErrorException("directory is not writable: "
                                   + path.toString());
      }

      if (retainTime == 0) {
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   */
  private static boolean checkPermissionOfOther(FileSystem fs, Path path,
      FsAction action, Map<URI, FileStatus> statCache) throws IOException {
    FileStatus status = getFileStatus(fs, path.toUri(), statCache);
    FsPermission perms = status.getPermission();
    FsAction otherAction = perms.getOtherAction();
    if (otherAction.implies(action)) {
      return true;
    }
    return false;
  }
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        .setType(type)
        .setName(name);

      // The child's initial permission bits are treated as the mode parameter,
      // which can filter copied permission values for owner, mask and other.
      final FsAction permission;
      if (type == AclEntryType.USER && name == null) {
        permission = entry.getPermission().and(childPerm.getUserAction());
      } else if (type == AclEntryType.GROUP && parentDefaultIsMinimal) {
        // This only happens if the default ACL is a minimal ACL: exactly 3
        // entries corresponding to owner, group and other.  In this case,
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      AclEntry groupEntryKey = new AclEntry.Builder()
          .setScope(AclEntryScope.ACCESS).setType(AclEntryType.GROUP).build();
      int groupEntryIndex = Collections.binarySearch(featureEntries,
          groupEntryKey, AclTransformation.ACL_ENTRY_COMPARATOR);
      assert groupEntryIndex >= 0;
      FsAction groupPerm = featureEntries.get(groupEntryIndex).getPermission();
      FsPermission newPerm = new FsPermission(perm.getUserAction(), groupPerm,
          perm.getOtherAction(), perm.getStickyBit());
      inode.setPermission(newPerm, snapshotId);
    }
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    // Determine which scopes are present, which scopes need a mask, and the
    // union of group class permissions in each scope.
    for (AclEntry entry: aclBuilder) {
      scopeFound.add(entry.getScope());
      if (entry.getType() == GROUP || entry.getName() != null) {
        FsAction scopeUnionPerms = Objects.firstNonNull(
          unionPerms.get(entry.getScope()), FsAction.NONE);
        unionPerms.put(entry.getScope(),
          scopeUnionPerms.or(entry.getPermission()));
      }
      if (entry.getName() != null) {
        maskNeeded.add(entry.getScope());
      }
    }
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   */
  private static boolean checkPermissionOfOther(FileSystem fs, Path path,
      FsAction action) throws IOException {
    FileStatus status = fs.getFileStatus(path);
    FsPermission perms = status.getPermission();
    FsAction otherAction = perms.getOtherAction();
    if (otherAction.implies(action)) {
      return true;
    }
    return false;
  }
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   */
  public static boolean isActionPermittedForFileHierarchy(FileSystem fs, FileStatus fileStatus,
      String userName, FsAction action) throws IOException {
    boolean isDir = fileStatus.isDir();

    FsAction dirActionNeeded = action;
    if (isDir) {
      // for dirs user needs execute privileges as well
      dirActionNeeded.and(FsAction.EXECUTE);
    }
    if (!isActionPermittedForUser(userName, fileStatus, dirActionNeeded)) {
      return false;
    }

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  /**
   * @return A random FsPermission
   */
  private FsPermission genRandomPermission() {
    // randomly select between "rwx" and "rw-"
    FsAction u = random.nextBoolean() ? FsAction.ALL : FsAction.READ_WRITE;
    FsAction g = random.nextBoolean() ? FsAction.ALL : FsAction.READ_WRITE;
    FsAction o = random.nextBoolean() ? FsAction.ALL : FsAction.READ_WRITE;
    return new FsPermission(u, g, o);
  }
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  private static boolean checkPublicPermsForAll(FileSystem fs,
        FileStatus status, FsAction dir, FsAction file)
    throws IOException {
    FsPermission perms = status.getPermission();
    FsAction otherAction = perms.getOtherAction();
    if (status.isDirectory()) {
      if (!otherAction.implies(dir)) {
        return false;
      }
     
      for (FileStatus child : fs.listStatus(status.getPath())) {
        if(!checkPublicPermsForAll(fs, child, dir, file)) {
          return false;
        }
      }
      return true;
    }
    return (otherAction.implies(file));
  }
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  private static boolean checkPermissionOfOther(FileSystem fs, Path path,
      FsAction action, LoadingCache<Path,Future<FileStatus>> statCache)
      throws IOException {
    FileStatus status = getFileStatus(fs, path, statCache);
    FsPermission perms = status.getPermission();
    FsAction otherAction = perms.getOtherAction();
    return otherAction.implies(action);
  }
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