WebSocketServer.cpp
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#include <iostream>
#include "WebSocketServer.h"
#include "./Utils/StringTools.hpp"
#include "ConfigParser.hpp"
#include "./Utils/logger.hpp"
using websocketpp::lib::placeholders::_1;
using websocketpp::lib::placeholders::_2;
using websocketpp::lib::bind;
WebSocketServer::WebSocketServer(/* args */)
{
}
WebSocketServer::~WebSocketServer()
{
}
int WebSocketServer::parse_invite(vector<string>& vec_msg, std::string ip) {
string net_type = "";
if (StringTools::to_lower(vec_msg[1]) == "udp") {
net_type = "udp";
} else if (StringTools::to_lower(vec_msg[1]) == "tcp") {
net_type = "tcp";
}
LOG_INFO("invite {}:{} net type: {}", vec_msg[2], vec_msg[3], vec_msg[1]);
int ret = -100;
if ("udp" == net_type) {
ret = sip_server.RequestInvite_UDP(vec_msg[2].c_str(), ip.c_str(), atoi(vec_msg[3].c_str()));
} else if ("tcp" == net_type) {
ret = sip_server.RequestInvite_TCP_a(vec_msg[2].c_str(), ip.c_str(), atoi(vec_msg[3].c_str()));
}
return ret;
}
string WebSocketServer::get_ip_from_hdl(websocketpp::connection_hdl hdl) {
server::connection_ptr con = ws_server.get_con_from_hdl(hdl);
// 获取客户端IP地址
auto addr = con->get_socket().remote_endpoint().address().to_string();
std::string ip = addr.substr(addr.find_last_of(":")+1);
LOG_DEBUG("ip:{}", ip);
return ip;
}
int WebSocketServer::msg_parser(websocketpp::connection_hdl hdl, string msg) {
vector<string> vec_msg = StringTools::split(msg, "|");
if (vec_msg.size() <= 0) {
return -1;
}
string ip = get_ip_from_hdl(hdl);
string response_msg = "";
int ret = -100;
if ( StringTools::to_lower(vec_msg[0]) == "invite") {
ret = parse_invite(vec_msg, ip);
string strKey = vec_msg[2] + "_" + vec_msg[3];
if (ret > 0) {
std::lock_guard<std::mutex> l_hdl(m_channelport_hdl_map_mtx);
m_channelport_hdl_map[strKey] = hdl;
}
response_msg = strKey +"|" + vec_msg[0] + "|" + vec_msg[1] + "|" + to_string(ret);
ws_server.send(hdl, response_msg, websocketpp::frame::opcode::text);
} else if ( StringTools::to_lower(vec_msg[0]) == "bye") {
if (StringTools::to_lower(vec_msg[1]) == "invite") {
LOG_INFO("BYE invite: {}", vec_msg[2]);
std::lock_guard<std::mutex> l_hdl(m_channelport_hdl_map_mtx);
string strKey = vec_msg[2] + "_" + vec_msg[3];
auto it = m_channelport_hdl_map.find(strKey);
if (it != m_channelport_hdl_map.end()) {
m_channelport_hdl_map.erase(it);
}
ret = sip_server.ByeInvite(vec_msg[2], ip, atoi(vec_msg[3].c_str()));
}
} else {
LOG_ERROR("on_message called with hdl: {} and message:{}", hdl.lock().get(), msg);
}
return ret;
}
void WebSocketServer::response_client(std::string sip_channel_id, int rtp_port, std::string net_type, int ret) {
std::lock_guard<std::mutex> l_hdl(m_channelport_hdl_map_mtx);
string strKey = sip_channel_id + "_" + to_string(rtp_port);
auto it = m_channelport_hdl_map.find(strKey);
if (it == m_channelport_hdl_map.end()) {
return;
}
try {
// invite
string response_msg = strKey +"|invite|" + net_type + "|" + to_string(ret);
ws_server.send(it->second, response_msg, websocketpp::frame::opcode::text);
} catch(const std::exception& e) {
// 存在一种可能：连接已经断开，但是sip那边请求失败，这种时候应该是会抛出异常。所以这里用try-cache，屏蔽此情况造成的问题
LOG_WARN("response failed because::{}", e.what());
}
}
// Define a callback to handle incoming messages
void WebSocketServer::on_message(websocketpp::connection_hdl hdl, message_ptr msg) {
if (msg->get_payload() == "stop-listening") {
ws_server.stop_listening();
return;
}
try {
msg_parser(hdl,msg->get_payload());
} catch (websocketpp::exception const & e) {
LOG_ERROR("Echo failed because::{}", e.what());
ws_server.send(hdl, to_string(-101), websocketpp::frame::opcode::text);
}
}
void WebSocketServer::on_open(websocketpp::connection_hdl hdl)
{
LOG_INFO("连接sip服务器成功！");
}
void WebSocketServer::on_fail(websocketpp::connection_hdl h){
LOG_WARN("连接sip服务器失败！");
}
void WebSocketServer::on_close(websocketpp::connection_hdl h){
LOG_INFO("on_close:{}", h.lock().get());
std::lock_guard<std::mutex> l_hdl(m_channelport_hdl_map_mtx);
for (auto it = m_channelport_hdl_map.begin(); it != m_channelport_hdl_map.end(); )
{
server::connection_ptr con = ws_server.get_con_from_hdl(it->second);
server::connection_ptr con_std = ws_server.get_con_from_hdl(h);
if (con == con_std) {
it = m_channelport_hdl_map.erase(it);
} else {
it++;
}
}
}
void WebSocketServer::start() {
ConfigParser* pConfig = ConfigParser::getInstance();
if (!pConfig->init())
{
LOG_ERROR("get config failed!");
return;
}
ServerInfo info = pConfig->getServerCfg();
sip_server.Init(&info, this);
try {
// Set logging settings
ws_server.set_access_channels(websocketpp::log::alevel::all);
ws_server.clear_access_channels(websocketpp::log::alevel::frame_payload);
// Initialize Asio
ws_server.init_asio();
// Register our message handler
ws_server.set_message_handler(bind(&WebSocketServer::on_message,this,::_1,::_2));
ws_server.set_open_handler(bind(&WebSocketServer::on_open, this, _1));
ws_server.set_fail_handler(bind(&WebSocketServer::on_fail, this, _1));
ws_server.set_close_handler(bind(&WebSocketServer::on_close, this, _1));
// Listen on port 9002
int port = info.getWsPort();
LOG_INFO("websocket server listen:{}", port);
ws_server.listen(port);
// Start the server accept loop
ws_server.start_accept();
// Start the ASIO io_service run loop
ws_server.run();
} catch (websocketpp::exception const & e) {
LOG_ERROR("websocket start failed:{}", e.what());
} catch (...) {
LOG_ERROR("websocket start failed: other exception");
}
}