// 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.

#ifndef __AUTHENTICATION_CRAM_MD5_AUTHENTICATOR_HPP__
#define __AUTHENTICATION_CRAM_MD5_AUTHENTICATOR_HPP__

#include <string>

#include <mesos/module/authenticator.hpp>

#include <process/future.hpp>
#include <process/id.hpp>

#include <stout/option.hpp>
#include <stout/try.hpp>

namespace mesos {
namespace internal {
namespace cram_md5 {

// Forward declaration.
class CRAMMD5AuthenticatorProcess;

class CRAMMD5Authenticator : public Authenticator
{
public:
  // Factory to allow for typed tests.
  static Try<Authenticator*> create();

  CRAMMD5Authenticator();

  virtual ~CRAMMD5Authenticator();

  virtual Try<Nothing> initialize(const Option<Credentials>& credentials);

  virtual process::Future<Option<std::string>> authenticate(
      const process::UPID& pid);

private:
  CRAMMD5AuthenticatorProcess* process;
};

} // namespace cram_md5 {
} // namespace internal {
} // namespace mesos {

#endif // __AUTHENTICATION_CRAM_MD5_AUTHENTICATOR_HPP__