rcpp_framework/core/net/tcp_connection.h
2022-02-10 14:35:26 +01:00

122 lines
4.2 KiB
C++

// This file is originally from Trantor - TcpConnection.h
// Copyright (c) 2016-2021, Tao An. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// * Neither the name of Tao An nor the names of other contributors
// may be used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#pragma once
#include "core/containers/msg_buffer.h"
#include "core/loops/callbacks.h"
#include "core/loops/event_loop.h"
#include "core/net/inet_address.h"
#include <functional>
#include <memory>
#include <string>
// add new class TcpConnectionListener or ConnectionListener
//set_listener(ConnectionListener)
// instead of callbacks
class SSLContext;
std::shared_ptr<SSLContext> newSSLServerContext(const std::string &certPath, const std::string &keyPath, bool useOldTLS = false, const std::vector<std::pair<std::string, std::string> > &sslConfCmds = {});
class TcpConnection {
public:
TcpConnection() = default;
virtual ~TcpConnection(){};
virtual void send(const char *msg, size_t len) = 0;
virtual void send(const void *msg, size_t len) = 0;
virtual void send(const std::string &msg) = 0;
virtual void send(std::string &&msg) = 0;
virtual void send(const MsgBuffer &buffer) = 0;
virtual void send(MsgBuffer &&buffer) = 0;
virtual void send(const std::shared_ptr<std::string> &msgPtr) = 0;
virtual void send(const std::shared_ptr<MsgBuffer> &msgPtr) = 0;
virtual void sendFile(const char *fileName, size_t offset = 0, size_t length = 0) = 0;
virtual const InetAddress &localAddr() const = 0;
virtual const InetAddress &peerAddr() const = 0;
virtual bool connected() const = 0;
virtual bool disconnected() const = 0;
virtual MsgBuffer *getRecvBuffer() = 0;
virtual void setHighWaterMarkCallback(const HighWaterMarkCallback &cb, size_t markLen) = 0;
virtual void setTcpNoDelay(bool on) = 0;
virtual void shutdown() = 0;
virtual void forceClose() = 0;
virtual EventLoop *getLoop() = 0;
void setContext(const std::shared_ptr<void> &context) {
contextPtr_ = context;
}
void setContext(std::shared_ptr<void> &&context) {
contextPtr_ = std::move(context);
}
template <typename T>
std::shared_ptr<T> getContext() const {
return std::static_pointer_cast<T>(contextPtr_);
}
bool hasContext() const {
return (bool)contextPtr_;
}
void clearContext() {
contextPtr_.reset();
}
virtual void keepAlive() = 0;
virtual bool isKeepAlive() = 0;
virtual size_t bytesSent() const = 0;
virtual size_t bytesReceived() const = 0;
virtual bool isSSLConnection() const = 0;
virtual void startClientEncryption(std::function<void()> callback, bool useOldTLS = false, bool validateCert = true, std::string hostname = "", const std::vector<std::pair<std::string, std::string> > &sslConfCmds = {}) = 0;
virtual void startServerEncryption(const std::shared_ptr<SSLContext> &ctx, std::function<void()> callback) = 0;
protected:
bool validateCert_ = false;
private:
std::shared_ptr<void> contextPtr_;
};