CodecProtocol.h

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/*
 *  Copyright (c) 2015-present, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 *
 */
#pragma once

#include <cstdint>
#include <folly/Optional.h>
#include <proxygen/lib/utils/Export.h>
#include <string>

namespace proxygen {

enum class CodecProtocol : uint8_t {
  HTTP_1_1,
  SPDY_3,
  SPDY_3_1,
  HTTP_2,
  HQ,
};

extern const std::string& getCodecProtocolString(CodecProtocol);

extern bool isValidCodecProtocolStr(const std::string& protocolStr);

extern CodecProtocol getCodecProtocolFromStr(const std::string& protocolStr);

FB_EXPORT extern bool isSpdyCodecProtocol(CodecProtocol protocol);

extern bool isHTTP2CodecProtocol(CodecProtocol protocol);

extern bool isHQCodecProtocol(CodecProtocol protocol);

extern bool isParallelCodecProtocol(CodecProtocol protocol);

extern folly::Optional<std::pair<CodecProtocol, std::string>>
checkForProtocolUpgrade(const std::string& clientUpgrade,
                        const std::string& serverUpgrade,
                        bool serverMode);

}