/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

option java_package = "org.apache.hadoop.hbase.protobuf.generated";
option java_outer_classname = "AccessControlProtos";
option java_generic_services = true;
option java_generate_equals_and_hash = true;
option optimize_for = SPEED;

message Permission {
    enum Action {
        READ = 0;
        WRITE = 1;
        EXEC = 2;
        CREATE = 3;
        ADMIN = 4;
    }
    repeated Action action = 1;
    optional bytes table = 2;
    optional bytes family = 3;
    optional bytes qualifier = 4;
}

message UserPermission {
    required bytes user = 1;
    required Permission permission = 2;
}

/**
 * Content of the /hbase/acl/<table> znode.
 */
message UserTablePermissions {
  message UserPermissions {
    required bytes user = 1;
    repeated Permission permissions = 2;
  }

  repeated UserPermissions permissions = 1;
}

message GrantRequest {
    required UserPermission permission = 1;
}

message GrantResponse {
}

message RevokeRequest {
    required UserPermission permission = 1;

}

message RevokeResponse {
}


message UserPermissionsRequest {
    optional bytes table = 1;
}

message UserPermissionsResponse {
    repeated UserPermission permission = 1;
}

message CheckPermissionsRequest {
    repeated Permission permission = 1;
}

message CheckPermissionsResponse {
}

service AccessControlService {
    rpc grant(GrantRequest)
      returns (GrantResponse);

    rpc revoke(RevokeRequest)
      returns (RevokeResponse);

    rpc getUserPermissions(UserPermissionsRequest)
      returns (UserPermissionsResponse);

    rpc checkPermissions(CheckPermissionsRequest)
      returns (CheckPermissionsResponse);
}