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websocket_svr.cc
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/*
* Copyright (c) 2017-2018 SYZ
*
* https://github.com/zaphoyd/websocketpp.git
* v0.7.0
*
* g++ websocket_svr.cc -std=c++11 -D_WEBSOCKETPP_CPP11_STL_ -DASIO_STANDALONE
* -I$WEBSOCKETPP070_HOME/include -lssl -lcrypto -o release/websocket_svr
*
*/
#include <iostream>
#include <websocketpp/config/asio.hpp>
#include <websocketpp/config/asio_no_tls.hpp>
#include <websocketpp/server.hpp>
template <class T>
void processMessage(
T* server, const websocketpp::connection_hdl& hdl,
const websocketpp::server<websocketpp::config::asio>::message_ptr& msg);
template <class T>
void OnOpen(T* server, websocketpp::connection_hdl hdl) {
std::cout << "OnOpen() called" << std::endl;
}
template <class T>
void OnClose(T* server, websocketpp::connection_hdl hdl) {
std::cout << "OnClose() called" << std::endl;
}
template <class T>
void OnMessage(
T* server, websocketpp::connection_hdl hdl,
websocketpp::server<websocketpp::config::asio>::message_ptr msg) {
processMessage<T>(server, hdl, msg);
}
template <class T>
void OnFail(T* server, websocketpp::connection_hdl hdl,
websocketpp::server<websocketpp::config::asio>::message_ptr msg) {
std::cout << "OnFail() called" << std::endl;
}
template <class T>
void on_http(T* s, websocketpp::connection_hdl hdl) {
websocketpp::server<websocketpp::config::asio_tls>::connection_ptr con =
s->get_con_from_hdl(hdl);
con->set_body("Hello World!");
con->set_status(websocketpp::http::status_code::ok);
}
std::string get_password() { return "test"; }
enum tls_mode { MOZILLA_INTERMEDIATE = 1, MOZILLA_MODERN = 2 };
websocketpp::lib::shared_ptr<asio::ssl::context> on_tls_init(
tls_mode mode, websocketpp::connection_hdl hdl) {
std::cout << "on_tls_init called with hdl: " << hdl.lock().get() << std::endl;
std::cout << "using TLS mode: "
<< (mode == MOZILLA_MODERN ? "Mozilla Modern"
: "Mozilla Intermediate")
<< std::endl;
websocketpp::lib::shared_ptr<asio::ssl::context> ctx =
websocketpp::lib::make_shared<asio::ssl::context>(
asio::ssl::context::sslv23);
try {
if (mode == MOZILLA_MODERN) {
// Modern disables TLSv1
ctx->set_options(
asio::ssl::context::default_workarounds |
asio::ssl::context::no_sslv2 | asio::ssl::context::no_sslv3 |
asio::ssl::context::no_tlsv1 | asio::ssl::context::single_dh_use);
} else {
ctx->set_options(asio::ssl::context::default_workarounds |
asio::ssl::context::no_sslv2 |
asio::ssl::context::no_sslv3 |
asio::ssl::context::single_dh_use);
}
ctx->set_password_callback(bind(&get_password));
ctx->use_certificate_chain_file("server.pem");
ctx->use_private_key_file("server.pem", asio::ssl::context::pem);
// Example method of generating this file:
// `openssl dhparam -out dh.pem 2048`
// Mozilla Intermediate suggests 1024 as the minimum size to use
// Mozilla Modern suggests 2048 as the minimum size to use.
ctx->use_tmp_dh_file("dh.pem");
std::string ciphers;
if (mode == MOZILLA_MODERN) {
ciphers =
"ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-"
"AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-"
"SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-"
"SHA256:"
"ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-"
"SHA:"
"ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-"
"SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:"
"DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-"
"RSA-AES256-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!3DES:!MD5:!PSK";
} else {
ciphers =
"ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-"
"AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-"
"SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-"
"SHA256:"
"ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-"
"SHA:"
"ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-"
"SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:"
"DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-"
"RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:"
"AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:DES-CBC3-SHA:!"
"aNULL:!"
"eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-"
"RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA";
}
if (SSL_CTX_set_cipher_list(ctx->native_handle(), ciphers.c_str()) != 1) {
std::cout << "Error setting cipher list" << std::endl;
}
} catch (std::exception& e) {
std::cout << "Exception: " << e.what() << std::endl;
}
return ctx;
}
int main(int argc, char* argv[]) {
int result = -1;
do {
asio::io_service ios;
// ws
websocketpp::server<websocketpp::config::asio> server;
server.set_access_channels(websocketpp::log::alevel::all);
server.clear_access_channels(websocketpp::log::alevel::frame_payload);
server.init_asio(&ios);
server.set_open_handler(
bind(&OnOpen<websocketpp::server<websocketpp::config::asio>>, &server,
websocketpp::lib::placeholders::_1));
server.set_close_handler(
bind(&OnClose<websocketpp::server<websocketpp::config::asio>>, &server,
websocketpp::lib::placeholders::_1));
server.set_message_handler(
bind(&OnMessage<websocketpp::server<websocketpp::config::asio>>,
&server, websocketpp::lib::placeholders::_1,
websocketpp::lib::placeholders::_2));
server.listen(8090);
server.start_accept();
// wss
websocketpp::server<websocketpp::config::asio_tls> server_tls;
server_tls.init_asio(&ios);
server_tls.set_message_handler(
bind(&OnMessage<websocketpp::server<websocketpp::config::asio_tls>>,
&server_tls, websocketpp::lib::placeholders::_1,
websocketpp::lib::placeholders::_2));
server_tls.set_http_handler(
bind(&on_http<websocketpp::server<websocketpp::config::asio_tls>>,
&server_tls, websocketpp::lib::placeholders::_1));
server_tls.set_tls_init_handler(bind(&on_tls_init, MOZILLA_INTERMEDIATE,
websocketpp::lib::placeholders::_1));
server_tls.listen(8091);
server_tls.start_accept();
ios.run();
result = 0;
} while (0);
return result;
}
template <class T>
void processMessage(
T* server, const websocketpp::connection_hdl& hdl,
const websocketpp::server<websocketpp::config::asio>::message_ptr& msg) {
std::string str_query = msg->get_payload();
try {
server->send(hdl, str_query, websocketpp::frame::opcode::text);
} catch (const websocketpp::lib::error_code& e) {
std::cout << "WebSocketpp server send() failed" << std::endl;
}
}