/**
 * Copyright 2009-2013 Centreon
 *
 * Licensed 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.
 *
 * For more information : contact@centreon.com
 */

#ifndef CCB_TLS_STREAM_HH
#define CCB_TLS_STREAM_HH


#include "com/centreon/broker/io/stream.hh"
#include "com/centreon/broker/tls/params.hh"

namespace com::centreon::broker::tls {

/**
 *  @class stream stream.hh "com/centreon/broker/tls/stream.hh"
 *  @brief TLS wrapper of an underlying stream.
 *
 *  The TLS stream class wraps a lower layer stream and provides
 *  encryption (and optionnally compression) over this stream. Those
 *  functionnality are provided using the GNU TLS library
 *  (http://www.gnu.org/software/gnutls).
 */
class stream : public io::stream {
  std::vector<char> _buffer;
  time_t _deadline;
  gnutls_session_t _session;
  std::shared_ptr<spdlog::logger> _logger;

 public:
  stream(unsigned int session_flags);
  ~stream();

  void init(const params& param);

  stream(const stream&) = delete;
  stream& operator=(const stream&) = delete;
  bool read(std::shared_ptr<io::data>& d, time_t deadline) override;
  long long read_encrypted(void* buffer, long long size);
  int32_t write(std::shared_ptr<io::data> const& d) override;
  int32_t stop() override { return 0; }
  long long write_encrypted(void const* buffer, long long size);
};

}  // namespace com::centreon::broker::tls

#endif  // !CCB_TLS_STREAM_HH
