WebsocketAuthenticator.h

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// Copyright 2024 libsese
//
// 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.
 
 
#pragma once
 
#include "sese/Config.h"
#include "sese/util/NotInstantiable.h"
#include <utility>
 
namespace sese::net::ws {
 
class  WebsocketAuthenticator final : public NotInstantiable {
public:
    WebsocketAuthenticator() = delete;
 
    static std::pair<std::unique_ptr<char[]>, std::unique_ptr<char[]>> generateKeyPair() noexcept;
 
    static bool verify(const char *key, const char *result) noexcept;
 
    static std::unique_ptr<char[]> toResult(const char *key) noexcept;
 
private:
    static const char *append_string;
 
    static void generateKey(uint8_t key[16]);
};
} // namespace sese::net::ws