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C++服务器 支持http、tcp protobuf、websocket，linux开源框架 零依赖轻松编译部署 Reactor

article 2024/9/23 15:26:40

开源地址: https://github.com/crust-hub/tubekit/tree/main
Github:https://github.com/gaowanlu
诚招有兴趣的小伙伴加入开发维护

Tubekit

The C++ TCP server framework based on the Reactor model continues to implement POSIX thread pool, Epoll, non blocking IO, object pool, log, socket network programming, support the dynamic library to implement custom protocol extensions, and use http parser to process http requests. Currently only supports Linux systems

Platform: Linux
Protocol: HTTP TCP Stream(Protobuf) WebSocket

Get Start

prepare

$ sudo apt update
$ sudo apt install protobuf-compiler libprotobuf-dev
$ apt install g++ cmake make
$ git clone https://github.com/crust-hub/tubekit.git

Build

$ cd tubekit
$ cd protocol
$ make
$ cd ..
$ cmake .
$ make -j3

Config

$ vim bin/config/main.ini

Run

$ chmod +x ./run.sh
$ ./run.sh

Stop

$ chmod +x ./kill.sh
$ ./kill.sh

App

support tcp keep-alive stream (protobuf) and http app (http-parser)、websocket

Directory Structure

Directory Structure Link

Third Party

@http-parser
@lua

HTTP样例

#include "app/http_app.h"
#include <string>
#include <vector>
#include <filesystem>
#include <tubekit-log/logger.h>

#include "utility/mime_type.h"
#include "utility/url.h"

using std::string;
using std::vector;
using tubekit::app::http_app;
using tubekit::connection::http_connection;
namespace fs = std::filesystem;
namespace utility = tubekit::utility;

class html_loader
{
public:
    static string load(string body)
    {
        static string frame1 = "<!DOCTYPE html>\
                        <html>\
                        <head>\
                        <title></title>\
                        </head>\
                        <body>";
        static string frame2 = "</body>\
                                </html>";
        return frame1 + body + frame2;
    }
    static string a_tag(string url, string text)
    {
        string frame = "<a href=\"" + url + "\">" + text + "</a></br>";
        return frame;
    }
};

void http_app::process_connection(tubekit::connection::http_connection &m_http_connection)
{
    m_http_connection.m_buffer.set_limit_max(202300);
    // load callback
    m_http_connection.destory_callback = [](http_connection &m_connection) -> void
    {
        if (m_connection.ptr)
        {
            FILE *file = (FILE *)m_connection.ptr;
            ::fclose(file);
            m_connection.ptr = nullptr;
        }
    };
    m_http_connection.process_callback = [](http_connection &connection) -> void
    {
        string url = utility::url::decode(connection.url);
        auto find_res = url.find("..");
        if (std::string::npos != find_res)
        {
            connection.set_response_end(true);
            return;
        }
        const string prefix = "/";

        fs::path t_path;
        if (url.empty() || url[0] != '/')
        {
            t_path = prefix + url;
        }
        else
        {
            t_path = url;
        }

        if (fs::exists(t_path) && fs::status(t_path).type() == fs::file_type::regular)
        {
            std::string mime_type;
            try
            {
                mime_type = utility::mime_type::get_type(t_path.string());
            }
            catch (...)
            {
                mime_type = "application/octet-stream";
            }
            std::string response = "HTTP/1.1 200 OK\r\nServer: tubekit\r\n";
            response += "Content-Type: ";
            response += mime_type + "\r\n\r\n";
            try
            {
                connection.m_buffer.write(response.c_str(), response.size());
            }
            catch (const std::runtime_error &e)
            {
                LOG_ERROR(e.what());
            }
            connection.ptr = nullptr;
            connection.ptr = ::fopen(t_path.c_str(), "r");
            if (connection.ptr == nullptr)
            {
                connection.set_response_end(true);
                return;
            }
            // Write when the contents of the buffer have been sent write_end_callback will be executed,
            // and the response must be set response_end to true, then write after write_end_callback will be continuously recalled
            connection.write_end_callback = [](http_connection &m_connection) -> void
            {
                char buf[202300] = {0};
                int len = 0;
                len = ::fread(buf, sizeof(char), 202300, (FILE *)m_connection.ptr);
                if (len > 0)
                {
                    try
                    {
                        m_connection.m_buffer.write(buf, len);
                    }
                    catch (const std::runtime_error &e)
                    {
                        LOG_ERROR(e.what());
                    }
                }
                else
                {
                    m_connection.set_response_end(true);
                }
            };
            return;
        }

        if (fs::exists(t_path) && fs::status(t_path).type() == fs::file_type::directory)
        {
            connection.ptr = nullptr;
            const char *response = "HTTP/1.1 200 OK\r\nServer: tubekit\r\nContent-Type: text/html; charset=UTF-8\r\n\r\n";
            try
            {
                connection.m_buffer.write(response, strlen(response));
            }
            catch (const std::runtime_error &e)
            {
                LOG_ERROR(e.what());
            }
            //  generate dir list
            vector<string> a_tags;
            for (const auto &dir_entry : fs::directory_iterator{t_path})
            {
                std::string sub_path = dir_entry.path().string(); //.substr(prefix.size());
                a_tags.push_back(html_loader::a_tag(utility::url::encode(sub_path), sub_path));
            }
            string body;
            for (const auto &a_tag : a_tags)
            {
                body += a_tag;
            }
            string html = html_loader::load(body);
            try
            {
                connection.m_buffer.write(html.c_str(), html.size());
            }
            catch (const std::runtime_error &e)
            {
                LOG_ERROR(e.what());
            }
            connection.set_response_end(true);
            return;
        }

        const char *response = "HTTP/1.1 404 Not Found\r\nServer: tubekit\r\nContent-Type: text/text; charset=UTF-8\r\n\r\n";
        try
        {
            connection.m_buffer.write(response, strlen(response));
        }
        catch (const std::runtime_error &e)
        {
            LOG_ERROR(e.what());
        }
        connection.set_response_end(true);
    };
}

protobuf样例

#include "app/stream_app.h"
#include "proto_res/proto_cmd.pb.h"
#include "proto_res/proto_example.pb.h"
#include "proto_res/proto_message_head.pb.h"
#include <tubekit-log/logger.h>
#include <string>
#include <set>
#include "thread/mutex.h"
#include "utility/singleton.h"
#include "connection/connection_mgr.h"
#include "socket/socket.h"
#include "socket/socket_handler.h"

using tubekit::app::stream_app;
using tubekit::connection::connection_mgr;
using tubekit::connection::stream_connection;
using tubekit::socket::socket;
using tubekit::socket::socket_handler;
using tubekit::utility::singleton;

namespace tubekit::app
{
    std::set<void *> global_player;
    tubekit::thread::mutex global_player_mutex;
}

int process_protocol(tubekit::connection::stream_connection &m_stream_connection, ProtoPackage &package)
{
    // EXAMPLE_REQ
    if (package.cmd() == ProtoCmd::EXAMPLE_REQ)
    {
        ProtoExampleReq exampleReq;
        if (exampleReq.ParseFromString(package.body()))
        {
            LOG_ERROR("%s", exampleReq.testcontext().c_str());
            // std::cout << exampleReq.testcontext() << std::endl;
        }
        else
        {
            return -1;
        }
        return 0;
    }
    return -1;
}

void stream_app::process_connection(tubekit::connection::stream_connection &m_stream_connection)
{
    using tubekit::app::global_player;
    using tubekit::app::global_player_mutex;
    uint64_t all_data_len = m_stream_connection.m_recv_buffer.can_readable_size();
    char *all_data_buffer = new char[all_data_len];
    m_stream_connection.m_recv_buffer.copy_all(all_data_buffer, all_data_len);
    uint64_t offset = 0;

    do
    {
        char *tmp_buffer = all_data_buffer + offset;
        uint64_t data_len = all_data_len - offset;
        if (data_len == 0)
        {
            break;
        }

        ProtoPackage protoPackage;
        if (!protoPackage.ParseFromArray(tmp_buffer, data_len))
        {
            // std::cout << "protoPackage.ParseFromArray failed" << std::endl;
            break;
        }

        if (0 != process_protocol(m_stream_connection, protoPackage))
        {
            // std::cout << "process_protocol failed" << std::endl;
            m_stream_connection.mark_close();
            m_stream_connection.m_recv_buffer.clear();
            break;
        }
        // std::cout << "datalen " << data_len << " package size " << protoPackage.ByteSizeLong() << std::endl;
        offset += protoPackage.ByteSizeLong();

    } while (true);

    if (!m_stream_connection.m_recv_buffer.read_ptr_move_n(offset))
    {
        m_stream_connection.mark_close();
    }

    delete[] all_data_buffer;
}

void stream_app::on_close_connection(tubekit::connection::stream_connection &m_stream_connection)
{
    using tubekit::app::global_player;
    using tubekit::app::global_player_mutex;
    global_player_mutex.lock();
    global_player.erase(m_stream_connection.get_socket_ptr());
    LOG_ERROR("player online %d", global_player.size());
    global_player_mutex.unlock();
}

void stream_app::on_new_connection(tubekit::connection::stream_connection &m_stream_connection)
{
    using tubekit::app::global_player;
    using tubekit::app::global_player_mutex;
    global_player_mutex.lock();
    global_player.insert(m_stream_connection.get_socket_ptr());
    LOG_ERROR("player online %d", global_player.size());
    global_player_mutex.unlock();
}

bool stream_app::new_client_connection(const std::string &ip, int port)
{
    socket::socket *socket_object = singleton<socket_handler>::instance()->alloc_socket();
    if (!socket_object)
    {
        LOG_ERROR("alloc_socket return nullptr");
        return false;
    }
    bool b_ret = socket_object->connect(ip, port);
    if (!b_ret)
    {
        LOG_ERROR("connection remote %s:%d failed", ip.c_str(), port);
        singleton<socket_handler>::instance()->remove(socket_object);
        return false;
    }
    int i_ret = singleton<socket_handler>::instance()->attach(socket_object);
    if (0 != i_ret)
    {
        LOG_ERROR("attach to socket_handler error ret %d", i_ret);
        singleton<socket_handler>::instance()->remove(socket_object);
        return false;
    }
    // maybe to do some management for client socket...
    return true;
}

websocket

#include "app/websocket_app.h"
#include <vector>
#include <tubekit-log/logger.h>
#include "utility/singleton.h"
#include "connection/connection_mgr.h"
#include <arpa/inet.h>

using namespace tubekit::app;
using namespace tubekit::utility;
using namespace tubekit::connection;

struct websocket_frame
{
    uint8_t fin;
    uint8_t opcode;
    uint8_t mask;
    uint64_t payload_length;
    std::vector<uint8_t> masking_key;
    std::string payload_data;
};

enum class websocket_frame_type
{
    CONNECTION_CLOSE_FRAME = 0,
    TEXT_FRAME = 1,
    BINARY_FRAME = 2,
    PONG = 3,
    PING = 4,
    CONTINUATION_FRAME = 5,
    ERROR = 6
};

void websocket_app::process_connection(tubekit::connection::websocket_connection &m_websocket_connection)
{
    LOG_ERROR("process_connection");
    uint64_t all_data_len = m_websocket_connection.m_recv_buffer.can_readable_size();
    if (all_data_len <= 0)
    {
        LOG_ERROR("all_data_len <= 0");
        return;
    }
    char *data = new (std::nothrow) char[all_data_len];
    if (!data)
    {
        return;
    }
    all_data_len = m_websocket_connection.m_recv_buffer.copy_all(data, all_data_len);
    size_t index = 0;

    while (true)
    {
        if (index >= all_data_len)
        {
            break;
        }

        size_t start_index = index;

        websocket_frame frame;
        websocket_frame_type type = websocket_frame_type::ERROR;
        switch ((uint8_t)data[index])
        {
        case 0x81:
        {
            type = websocket_frame_type::TEXT_FRAME;
            break;
        }
        case 0x82:
        {
            type = websocket_frame_type::BINARY_FRAME;
            break;
        }
        case 0x88:
        {
            type = websocket_frame_type::CONNECTION_CLOSE_FRAME;
            break;
        }
        case 0x89:
        {
            type = websocket_frame_type::PING;
            break;
        }
        default:
        {
            if (data[index] >= 0x00 && data[index] <= 0x7F)
            {
                type = websocket_frame_type::CONTINUATION_FRAME;
            }
            break;
        }
        }

        if (type != websocket_frame_type::TEXT_FRAME && type != websocket_frame_type::BINARY_FRAME)
        {
            m_websocket_connection.mark_close();
            break;
        }

        frame.fin = (data[index] & 0x80) != 0;
        frame.opcode = data[index] & 0x0F;
        index++;
        if (index >= all_data_len)
        {
            LOG_ERROR("index[%llu] >= all_data_len[%llu]", index, all_data_len);
            break;
        }

        frame.mask = (data[index] & 0x80) != 0;
        frame.payload_length = data[index] & 0x7F;
        index++;
        if (index >= all_data_len)
        {
            LOG_ERROR("index[%llu] >= all_data_len[%llu]", index, all_data_len);
            break;
        }

        if (frame.payload_length == 126)
        {
            frame.payload_length = 0;
            if (index + 2 >= all_data_len)
            {
                LOG_ERROR("index[%llu] >= all_data_len[%llu]", index + 2, all_data_len);
                break;
            }
            uint16_t tmp = 0;
            u_char *ph;
            ph = (u_char *)&tmp;
            *ph++ = data[index];
            *ph++ = data[index + 1];
            tmp = ntohs(tmp);
            frame.payload_length = tmp;
            index += 2;
        }
        else if (frame.payload_length == 127)
        {
            frame.payload_length = 0;
            if (index + 8 >= all_data_len)
            {
                LOG_ERROR("index[%llu] >= all_data_len[%llu]", index + 8, all_data_len);
                break;
            }
            uint32_t tmp = 0;
            u_char *ph = (u_char *)&tmp;
            *ph++ = data[index++];
            *ph++ = data[index++];
            *ph++ = data[index++];
            *ph++ = data[index++];
            frame.payload_length = ntohl(tmp);
            frame.payload_length = frame.payload_length << 32;
            ph = (u_char *)&tmp;
            *ph++ = data[index++];
            *ph++ = data[index++];
            *ph++ = data[index++];
            *ph++ = data[index++];
            tmp = ntohl(tmp);
            frame.payload_length = frame.payload_length | tmp;
        }

        if (frame.payload_length == 0)
        {
            break;
        }

        if (frame.mask)
        {
            if (index + 4 >= all_data_len)
            {
                LOG_ERROR("index[%llu] >= all_data_len[%llu]", index + 3, all_data_len);
                break;
            }
            frame.masking_key = {(uint8_t)data[index], (uint8_t)data[index + 1], (uint8_t)data[index + 2], (uint8_t)data[index + 3]};
            index += 4;
        }
        // payload data [data+index,data+index+frame.payload_length]
        if (index >= all_data_len)
        {
            LOG_ERROR("index[%llu] >= all_data_len[%llu]", index, all_data_len);
            break;
        }
        if (index - 1 + frame.payload_length >= all_data_len)
        {
            LOG_ERROR("index - 1 + frame.payload_length=[%llu] >= all_data_len[%llu]", index - 1 + frame.payload_length, all_data_len);
            break;
        }
        std::string payload_data(data + index, frame.payload_length);
        if (frame.mask)
        {
            for (size_t i = 0; i < payload_data.size(); ++i)
            {
                payload_data[i] ^= frame.masking_key[i % 4];
            }
        }
        frame.payload_data = std::move(payload_data);

        // broadcast
        singleton<connection_mgr>::instance()->for_each(
            [&frame](connection::connection &conn) -> void
            {
                websocket_connection *ptr_conn = static_cast<websocket_connection *>(&conn);
                websocket_app::send_packet(*ptr_conn, frame.payload_data.c_str(), frame.payload_length, false);
            });

        // websocket_app::send_packet(m_websocket_connection, frame.payload_data.c_str(), frame.payload_length, false);
        // frame.payload_data.push_back(0);
        // LOG_ERROR("%s", frame.payload_data.c_str());
        m_websocket_connection.m_recv_buffer.read_ptr_move_n(index - start_index + frame.payload_length);
        index += frame.payload_length;
    }

    delete[] data;
}

void websocket_app::on_close_connection(tubekit::connection::websocket_connection &m_websocket_connection)
{
    LOG_ERROR("on_close_connection");
}

void websocket_app::on_new_connection(tubekit::connection::websocket_connection &m_websocket_connection)
{
    LOG_ERROR("on_new_connection");
}

bool websocket_app::send_packet(tubekit::connection::websocket_connection &m_websocket_connection, const char *data, size_t data_len, bool use_safe)
{
    if (!data)
    {
        return false;
    }
    uint8_t opcode = 0x81;
    size_t message_length = data_len;
    std::vector<uint8_t> frame;
    frame.push_back(opcode);

    if (message_length <= 125)
    {
        frame.push_back(static_cast<uint8_t>(message_length));
    }
    else if (message_length <= 0xFFFF)
    {
        frame.push_back(126);
        frame.push_back((message_length >> 8) & 0xFF);
        frame.push_back(message_length & 0xFF);
    }
    else
    {
        frame.push_back(127);
        for (int i = 7; i >= 0; --i)
        {
            frame.push_back((message_length >> (8 * i)) & 0xFF);
        }
    }

    frame.insert(frame.end(), data, data + data_len);

    if (!use_safe)
    {
        return m_websocket_connection.send((const char *)frame.data(), frame.size());
    }
    return singleton<connection_mgr>::instance()->safe_send(m_websocket_connection.get_socket_ptr(), (const char *)frame.data(), frame.size());
}

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