HttpServiceImpl.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 <optional>
#include <sese/service/http/HttpService.h>
 
#include <sese/internal/service/http/HttpConnection.h>
#include <sese/internal/service/http/HttpConnectionEx.h>
 
namespace sese::internal::service::http {
 
class HttpServiceImpl final : public sese::service::http::HttpService,
                              public std::enable_shared_from_this<HttpServiceImpl> {
public:
    friend struct HttpConnection;
    friend struct HttpConnectionEx;
 
    HttpServiceImpl(
        const sese::net::IPAddress::Ptr &address,
        SSLContextPtr ssl_context,
        uint32_t keepalive,
        std::string &serv_name,
        MountPointMap &mount_points,
        ServletMap &servlets,
        FilterCallback &tail_filter,
        FilterMap &filters,
        ConnectionCallback &connection_callback
    );
 
    bool startup() override;
 
    bool shutdown() override;
 
    int getLastError() override;
 
    std::string getLastErrorMessage() override;
 
    uint32_t getKeepalive() const { return keepalive; }
 
    void handleFilter(const Handleable::Ptr &conn) const;
 
    void handleRequest(const Handleable::Ptr &conn) const;
 
private:
    asio::io_context io_context;
    std::optional<asio::ssl::context> ssl_context;
    asio::ip::tcp::acceptor acceptor;
    asio::error_code error;
 
    static constexpr unsigned char ALPN_PROTOS[] = "\x2h2\x8http/1.1";
 
    static int alpnCallback(SSL *ssl, const uint8_t **out, uint8_t *out_length, const uint8_t *in, uint32_t in_length, void *data);
 
    void handleAccept();
 
    void handleSSLAccept();
 
    std::set<HttpConnection::Ptr> connections;
    std::set<HttpConnectionEx::Ptr> connections2;
};
 
}