[DEV] add v1.76.0

This commit is contained in:
2021-10-05 21:37:46 +02:00
parent a97e9ae7d4
commit d0115b733d
45133 changed files with 4744437 additions and 1026325 deletions

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@@ -8,6 +8,7 @@
#
add_subdirectory (async)
add_subdirectory (chat-multi)
add_subdirectory (coro)
add_subdirectory (fast)
add_subdirectory (stackless)

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@@ -8,13 +8,14 @@
#
build-project async ;
build-project chat-multi ;
build-project coro ;
build-project fast ;
build-project stackless ;
build-project sync ;
# VFALCO How do I make this work on Windows and if OpenSSL is not available?
#build-project async-ssl ;
#build-project coro-ssl ;
#build-project stackless-ssl ;
#build-project sync-ssl ;
# SSL
build-project async-ssl ;
build-project coro-ssl ;
build-project stackless-ssl ;
build-project sync-ssl ;

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@@ -22,7 +22,10 @@ if (OPENSSL_FOUND)
set_property(TARGET websocket-server-async-ssl PROPERTY FOLDER "example-websocket-server")
target_link_libraries (websocket-server-async-ssl
${OPENSSL_LIBRARIES}
OpenSSL::SSL OpenSSL::Crypto
lib-asio
lib-asio-ssl
lib-beast
)
endif()

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@@ -7,10 +7,11 @@
# Official repository: https://github.com/boostorg/beast
#
import ac ;
project
: requirements
<library>ssl
<library>crypto
[ ac.check-library /boost/beast//lib-asio-ssl : <library>/boost/beast//lib-asio-ssl/<link>static : <build>no ]
;
exe websocket-server-async-ssl :

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@@ -1,5 +1,5 @@
//
// Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
@@ -16,12 +16,11 @@
#include "example/common/server_certificate.hpp"
#include <boost/beast/core.hpp>
#include <boost/beast/ssl.hpp>
#include <boost/beast/websocket.hpp>
#include <boost/beast/websocket/ssl.hpp>
#include <boost/asio/bind_executor.hpp>
#include <boost/asio/strand.hpp>
#include <boost/asio/ip/tcp.hpp>
#include <boost/asio/ssl/stream.hpp>
#include <boost/asio/dispatch.hpp>
#include <algorithm>
#include <cstdlib>
#include <functional>
@@ -31,15 +30,18 @@
#include <thread>
#include <vector>
using tcp = boost::asio::ip::tcp; // from <boost/asio/ip/tcp.hpp>
namespace ssl = boost::asio::ssl; // from <boost/asio/ssl.hpp>
namespace websocket = boost::beast::websocket; // from <boost/beast/websocket.hpp>
namespace beast = boost::beast; // from <boost/beast.hpp>
namespace http = beast::http; // from <boost/beast/http.hpp>
namespace websocket = beast::websocket; // from <boost/beast/websocket.hpp>
namespace net = boost::asio; // from <boost/asio.hpp>
namespace ssl = boost::asio::ssl; // from <boost/asio/ssl.hpp>
using tcp = boost::asio::ip::tcp; // from <boost/asio/ip/tcp.hpp>
//------------------------------------------------------------------------------
// Report a failure
void
fail(boost::system::error_code ec, char const* what)
fail(beast::error_code ec, char const* what)
{
std::cerr << what << ": " << ec.message() << "\n";
}
@@ -47,54 +49,79 @@ fail(boost::system::error_code ec, char const* what)
// Echoes back all received WebSocket messages
class session : public std::enable_shared_from_this<session>
{
tcp::socket socket_;
websocket::stream<ssl::stream<tcp::socket&>> ws_;
boost::asio::strand<
boost::asio::io_context::executor_type> strand_;
boost::beast::multi_buffer buffer_;
websocket::stream<
beast::ssl_stream<beast::tcp_stream>> ws_;
beast::flat_buffer buffer_;
public:
// Take ownership of the socket
session(tcp::socket socket, ssl::context& ctx)
: socket_(std::move(socket))
, ws_(socket_, ctx)
, strand_(ws_.get_executor())
session(tcp::socket&& socket, ssl::context& ctx)
: ws_(std::move(socket), ctx)
{
}
// Get on the correct executor
void
run()
{
// We need to be executing within a strand to perform async operations
// on the I/O objects in this session. Although not strictly necessary
// for single-threaded contexts, this example code is written to be
// thread-safe by default.
net::dispatch(ws_.get_executor(),
beast::bind_front_handler(
&session::on_run,
shared_from_this()));
}
// Start the asynchronous operation
void
run()
on_run()
{
// Perform the SSL handshake
// Set the timeout.
beast::get_lowest_layer(ws_).expires_after(std::chrono::seconds(30));
// Perform the SSL handshake
ws_.next_layer().async_handshake(
ssl::stream_base::server,
boost::asio::bind_executor(
strand_,
std::bind(
&session::on_handshake,
shared_from_this(),
std::placeholders::_1)));
beast::bind_front_handler(
&session::on_handshake,
shared_from_this()));
}
void
on_handshake(boost::system::error_code ec)
on_handshake(beast::error_code ec)
{
if(ec)
return fail(ec, "handshake");
// Turn off the timeout on the tcp_stream, because
// the websocket stream has its own timeout system.
beast::get_lowest_layer(ws_).expires_never();
// Set suggested timeout settings for the websocket
ws_.set_option(
websocket::stream_base::timeout::suggested(
beast::role_type::server));
// Set a decorator to change the Server of the handshake
ws_.set_option(websocket::stream_base::decorator(
[](websocket::response_type& res)
{
res.set(http::field::server,
std::string(BOOST_BEAST_VERSION_STRING) +
" websocket-server-async-ssl");
}));
// Accept the websocket handshake
ws_.async_accept(
boost::asio::bind_executor(
strand_,
std::bind(
&session::on_accept,
shared_from_this(),
std::placeholders::_1)));
beast::bind_front_handler(
&session::on_accept,
shared_from_this()));
}
void
on_accept(boost::system::error_code ec)
on_accept(beast::error_code ec)
{
if(ec)
return fail(ec, "accept");
@@ -109,18 +136,14 @@ public:
// Read a message into our buffer
ws_.async_read(
buffer_,
boost::asio::bind_executor(
strand_,
std::bind(
&session::on_read,
shared_from_this(),
std::placeholders::_1,
std::placeholders::_2)));
beast::bind_front_handler(
&session::on_read,
shared_from_this()));
}
void
on_read(
boost::system::error_code ec,
beast::error_code ec,
std::size_t bytes_transferred)
{
boost::ignore_unused(bytes_transferred);
@@ -136,18 +159,14 @@ public:
ws_.text(ws_.got_text());
ws_.async_write(
buffer_.data(),
boost::asio::bind_executor(
strand_,
std::bind(
&session::on_write,
shared_from_this(),
std::placeholders::_1,
std::placeholders::_2)));
beast::bind_front_handler(
&session::on_write,
shared_from_this()));
}
void
on_write(
boost::system::error_code ec,
beast::error_code ec,
std::size_t bytes_transferred)
{
boost::ignore_unused(bytes_transferred);
@@ -168,20 +187,20 @@ public:
// Accepts incoming connections and launches the sessions
class listener : public std::enable_shared_from_this<listener>
{
net::io_context& ioc_;
ssl::context& ctx_;
tcp::acceptor acceptor_;
tcp::socket socket_;
public:
listener(
boost::asio::io_context& ioc,
net::io_context& ioc,
ssl::context& ctx,
tcp::endpoint endpoint)
: ctx_(ctx)
, acceptor_(ioc)
, socket_(ioc)
: ioc_(ioc)
, ctx_(ctx)
, acceptor_(net::make_strand(ioc))
{
boost::system::error_code ec;
beast::error_code ec;
// Open the acceptor
acceptor_.open(endpoint.protocol(), ec);
@@ -191,6 +210,14 @@ public:
return;
}
// Allow address reuse
acceptor_.set_option(net::socket_base::reuse_address(true), ec);
if(ec)
{
fail(ec, "set_option");
return;
}
// Bind to the server address
acceptor_.bind(endpoint, ec);
if(ec)
@@ -201,7 +228,7 @@ public:
// Start listening for connections
acceptor_.listen(
boost::asio::socket_base::max_listen_connections, ec);
net::socket_base::max_listen_connections, ec);
if(ec)
{
fail(ec, "listen");
@@ -213,24 +240,23 @@ public:
void
run()
{
if(! acceptor_.is_open())
return;
do_accept();
}
private:
void
do_accept()
{
// The new connection gets its own strand
acceptor_.async_accept(
socket_,
std::bind(
net::make_strand(ioc_),
beast::bind_front_handler(
&listener::on_accept,
shared_from_this(),
std::placeholders::_1));
shared_from_this()));
}
void
on_accept(boost::system::error_code ec)
on_accept(beast::error_code ec, tcp::socket socket)
{
if(ec)
{
@@ -239,7 +265,7 @@ public:
else
{
// Create the session and run it
std::make_shared<session>(std::move(socket_), ctx_)->run();
std::make_shared<session>(std::move(socket), ctx_)->run();
}
// Accept another connection
@@ -260,15 +286,15 @@ int main(int argc, char* argv[])
" websocket-server-async-ssl 0.0.0.0 8080 1\n";
return EXIT_FAILURE;
}
auto const address = boost::asio::ip::make_address(argv[1]);
auto const address = net::ip::make_address(argv[1]);
auto const port = static_cast<unsigned short>(std::atoi(argv[2]));
auto const threads = std::max<int>(1, std::atoi(argv[3]));
// The io_context is required for all I/O
boost::asio::io_context ioc{threads};
net::io_context ioc{threads};
// The SSL context is required, and holds certificates
ssl::context ctx{ssl::context::sslv23};
ssl::context ctx{ssl::context::tlsv12};
// This holds the self-signed certificate used by the server
load_server_certificate(ctx);

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@@ -16,4 +16,8 @@ add_executable (websocket-server-async
websocket_server_async.cpp
)
target_link_libraries(websocket-server-async
lib-asio
lib-beast)
set_property(TARGET websocket-server-async PROPERTY FOLDER "example-websocket-server")

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@@ -1,5 +1,5 @@
//
// Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
@@ -15,9 +15,8 @@
#include <boost/beast/core.hpp>
#include <boost/beast/websocket.hpp>
#include <boost/asio/bind_executor.hpp>
#include <boost/asio/dispatch.hpp>
#include <boost/asio/strand.hpp>
#include <boost/asio/ip/tcp.hpp>
#include <algorithm>
#include <cstdlib>
#include <functional>
@@ -27,14 +26,17 @@
#include <thread>
#include <vector>
using tcp = boost::asio::ip::tcp; // from <boost/asio/ip/tcp.hpp>
namespace websocket = boost::beast::websocket; // from <boost/beast/websocket.hpp>
namespace beast = boost::beast; // from <boost/beast.hpp>
namespace http = beast::http; // from <boost/beast/http.hpp>
namespace websocket = beast::websocket; // from <boost/beast/websocket.hpp>
namespace net = boost::asio; // from <boost/asio.hpp>
using tcp = boost::asio::ip::tcp; // from <boost/asio/ip/tcp.hpp>
//------------------------------------------------------------------------------
// Report a failure
void
fail(boost::system::error_code ec, char const* what)
fail(beast::error_code ec, char const* what)
{
std::cerr << what << ": " << ec.message() << "\n";
}
@@ -42,36 +44,57 @@ fail(boost::system::error_code ec, char const* what)
// Echoes back all received WebSocket messages
class session : public std::enable_shared_from_this<session>
{
websocket::stream<tcp::socket> ws_;
boost::asio::strand<
boost::asio::io_context::executor_type> strand_;
boost::beast::multi_buffer buffer_;
websocket::stream<beast::tcp_stream> ws_;
beast::flat_buffer buffer_;
public:
// Take ownership of the socket
explicit
session(tcp::socket socket)
session(tcp::socket&& socket)
: ws_(std::move(socket))
, strand_(ws_.get_executor())
{
}
// Get on the correct executor
void
run()
{
// We need to be executing within a strand to perform async operations
// on the I/O objects in this session. Although not strictly necessary
// for single-threaded contexts, this example code is written to be
// thread-safe by default.
net::dispatch(ws_.get_executor(),
beast::bind_front_handler(
&session::on_run,
shared_from_this()));
}
// Start the asynchronous operation
void
run()
on_run()
{
// Set suggested timeout settings for the websocket
ws_.set_option(
websocket::stream_base::timeout::suggested(
beast::role_type::server));
// Set a decorator to change the Server of the handshake
ws_.set_option(websocket::stream_base::decorator(
[](websocket::response_type& res)
{
res.set(http::field::server,
std::string(BOOST_BEAST_VERSION_STRING) +
" websocket-server-async");
}));
// Accept the websocket handshake
ws_.async_accept(
boost::asio::bind_executor(
strand_,
std::bind(
&session::on_accept,
shared_from_this(),
std::placeholders::_1)));
beast::bind_front_handler(
&session::on_accept,
shared_from_this()));
}
void
on_accept(boost::system::error_code ec)
on_accept(beast::error_code ec)
{
if(ec)
return fail(ec, "accept");
@@ -86,18 +109,14 @@ public:
// Read a message into our buffer
ws_.async_read(
buffer_,
boost::asio::bind_executor(
strand_,
std::bind(
&session::on_read,
shared_from_this(),
std::placeholders::_1,
std::placeholders::_2)));
beast::bind_front_handler(
&session::on_read,
shared_from_this()));
}
void
on_read(
boost::system::error_code ec,
beast::error_code ec,
std::size_t bytes_transferred)
{
boost::ignore_unused(bytes_transferred);
@@ -113,18 +132,14 @@ public:
ws_.text(ws_.got_text());
ws_.async_write(
buffer_.data(),
boost::asio::bind_executor(
strand_,
std::bind(
&session::on_write,
shared_from_this(),
std::placeholders::_1,
std::placeholders::_2)));
beast::bind_front_handler(
&session::on_write,
shared_from_this()));
}
void
on_write(
boost::system::error_code ec,
beast::error_code ec,
std::size_t bytes_transferred)
{
boost::ignore_unused(bytes_transferred);
@@ -145,17 +160,17 @@ public:
// Accepts incoming connections and launches the sessions
class listener : public std::enable_shared_from_this<listener>
{
net::io_context& ioc_;
tcp::acceptor acceptor_;
tcp::socket socket_;
public:
listener(
boost::asio::io_context& ioc,
net::io_context& ioc,
tcp::endpoint endpoint)
: acceptor_(ioc)
, socket_(ioc)
: ioc_(ioc)
, acceptor_(ioc)
{
boost::system::error_code ec;
beast::error_code ec;
// Open the acceptor
acceptor_.open(endpoint.protocol(), ec);
@@ -165,6 +180,14 @@ public:
return;
}
// Allow address reuse
acceptor_.set_option(net::socket_base::reuse_address(true), ec);
if(ec)
{
fail(ec, "set_option");
return;
}
// Bind to the server address
acceptor_.bind(endpoint, ec);
if(ec)
@@ -175,7 +198,7 @@ public:
// Start listening for connections
acceptor_.listen(
boost::asio::socket_base::max_listen_connections, ec);
net::socket_base::max_listen_connections, ec);
if(ec)
{
fail(ec, "listen");
@@ -187,24 +210,23 @@ public:
void
run()
{
if(! acceptor_.is_open())
return;
do_accept();
}
private:
void
do_accept()
{
// The new connection gets its own strand
acceptor_.async_accept(
socket_,
std::bind(
net::make_strand(ioc_),
beast::bind_front_handler(
&listener::on_accept,
shared_from_this(),
std::placeholders::_1));
shared_from_this()));
}
void
on_accept(boost::system::error_code ec)
on_accept(beast::error_code ec, tcp::socket socket)
{
if(ec)
{
@@ -213,7 +235,7 @@ public:
else
{
// Create the session and run it
std::make_shared<session>(std::move(socket_))->run();
std::make_shared<session>(std::move(socket))->run();
}
// Accept another connection
@@ -234,12 +256,12 @@ int main(int argc, char* argv[])
" websocket-server-async 0.0.0.0 8080 1\n";
return EXIT_FAILURE;
}
auto const address = boost::asio::ip::make_address(argv[1]);
auto const address = net::ip::make_address(argv[1]);
auto const port = static_cast<unsigned short>(std::atoi(argv[2]));
auto const threads = std::max<int>(1, std::atoi(argv[3]));
// The io_context is required for all I/O
boost::asio::io_context ioc{threads};
net::io_context ioc{threads};
// Create and launch a listening port
std::make_shared<listener>(ioc, tcp::endpoint{address, port})->run();

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@@ -0,0 +1,41 @@
#
# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
#
# Distributed under the Boost Software License, Version 1.0. (See accompanying
# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#
# Official repository: https://github.com/boostorg/beast
#
GroupSources(include/boost/beast beast)
GroupSources(example/websocket/server/chat-multi "/")
file (GLOB APP_FILES
beast.hpp
http_session.cpp
http_session.hpp
Jamfile
listener.cpp
listener.hpp
main.cpp
net.hpp
shared_state.cpp
shared_state.hpp
websocket_session.cpp
websocket_session.hpp
chat_client.html
README.md
)
source_group ("" FILES ${APP_FILES})
add_executable (websocket-chat-multi
${APP_FILES}
${BOOST_BEAST_FILES}
)
target_link_libraries(websocket-chat-multi
lib-asio
lib-beast)
set_property(TARGET websocket-chat-multi PROPERTY FOLDER "example-websocket-server")

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@@ -0,0 +1,19 @@
#
# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
#
# Distributed under the Boost Software License, Version 1.0. (See accompanying
# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#
# Official repository: https://github.com/boostorg/beast
#
exe websocket-chat-multi :
http_session.cpp
listener.cpp
main.cpp
shared_state.cpp
websocket_session.cpp
:
<variant>coverage:<build>no
<variant>ubasan:<build>no
;

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@@ -0,0 +1,19 @@
//
// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// Official repository: https://github.com/vinniefalco/CppCon2018
//
#ifndef BOOST_BEAST_EXAMPLE_WEBSOCKET_CHAT_MULTI_BEAST_HPP
#define BOOST_BEAST_EXAMPLE_WEBSOCKET_CHAT_MULTI_BEAST_HPP
#include <boost/beast.hpp>
namespace beast = boost::beast; // from <boost/beast.hpp>
namespace http = beast::http; // from <boost/beast/http.hpp>
namespace websocket = beast::websocket; // from <boost/beast/websocket.hpp>
#endif

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@@ -0,0 +1,60 @@
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Boost.Beast WebSocket Chat Client</title>
</head>
<body>
<h1>Boost.Beast WebSocket Chat Client</h1>
<p>
<a href="http://www.boost.org/libs/beast">Boost.Beast</a>
<a href="http://www.boost.org/libs/beast/example/websocket/server/chat-multi">Source Code</a>
</p>
Server URI: <input class="draw-border" id="uri" size="47" value="ws://localhost:8080" style="margin-bottom: 5px;">
<button class="echo-button" id="connect">Connect</button>
<button class="echo-button" id="disconnect">Disconnect</button><br>
Your Name: <input class="draw-border" id="userName" size=47 style="margin-bottom: 5px;"><br>
<pre id="messages" style="width: 600px; height: 400px; white-space: normal; overflow: auto; border: solid 1px #cccccc; margin-bottom: 5px;"></pre>
<div style="margin-bottom: 5px;">
Message<br>
<input class="draw-border" id="sendMessage" size="74" value="">
<button class="echo-button" id="send">Send</button>
</div>
<script>
var ws = null;
function showMessage(msg) {
messages.innerText += msg + "\n";
messages.scrollTop = messages.scrollHeight - messages.clientHeight;
};
connect.onclick = function() {
ws = new WebSocket(uri.value);
ws.onopen = function(ev) {
showMessage("[connection opened]");
};
ws.onclose = function(ev) {
showMessage("[connection closed]");
};
ws.onmessage = function(ev) {
showMessage(ev.data);
};
ws.onerror = function(ev) {
showMessage("[error]");
console.log(ev);
};
};
disconnect.onclick = function() {
ws.close();
};
send.onclick = function() {
ws.send(userName.value + ": " + sendMessage.value);
sendMessage.value = "";
};
sendMessage.onkeyup = function(ev) {
ev.preventDefault();
if (ev.keyCode === 13) {
send.click();
}
}
</script>
</body>
</html>

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@@ -0,0 +1,371 @@
//
// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// Official repository: https://github.com/vinniefalco/CppCon2018
//
#include "http_session.hpp"
#include "websocket_session.hpp"
#include <boost/config.hpp>
#include <iostream>
#define BOOST_NO_CXX14_GENERIC_LAMBDAS
//------------------------------------------------------------------------------
// Return a reasonable mime type based on the extension of a file.
beast::string_view
mime_type(beast::string_view path)
{
using beast::iequals;
auto const ext = [&path]
{
auto const pos = path.rfind(".");
if(pos == beast::string_view::npos)
return beast::string_view{};
return path.substr(pos);
}();
if(iequals(ext, ".htm")) return "text/html";
if(iequals(ext, ".html")) return "text/html";
if(iequals(ext, ".php")) return "text/html";
if(iequals(ext, ".css")) return "text/css";
if(iequals(ext, ".txt")) return "text/plain";
if(iequals(ext, ".js")) return "application/javascript";
if(iequals(ext, ".json")) return "application/json";
if(iequals(ext, ".xml")) return "application/xml";
if(iequals(ext, ".swf")) return "application/x-shockwave-flash";
if(iequals(ext, ".flv")) return "video/x-flv";
if(iequals(ext, ".png")) return "image/png";
if(iequals(ext, ".jpe")) return "image/jpeg";
if(iequals(ext, ".jpeg")) return "image/jpeg";
if(iequals(ext, ".jpg")) return "image/jpeg";
if(iequals(ext, ".gif")) return "image/gif";
if(iequals(ext, ".bmp")) return "image/bmp";
if(iequals(ext, ".ico")) return "image/vnd.microsoft.icon";
if(iequals(ext, ".tiff")) return "image/tiff";
if(iequals(ext, ".tif")) return "image/tiff";
if(iequals(ext, ".svg")) return "image/svg+xml";
if(iequals(ext, ".svgz")) return "image/svg+xml";
return "application/text";
}
// Append an HTTP rel-path to a local filesystem path.
// The returned path is normalized for the platform.
std::string
path_cat(
beast::string_view base,
beast::string_view path)
{
if(base.empty())
return std::string(path);
std::string result(base);
#ifdef BOOST_MSVC
char constexpr path_separator = '\\';
if(result.back() == path_separator)
result.resize(result.size() - 1);
result.append(path.data(), path.size());
for(auto& c : result)
if(c == '/')
c = path_separator;
#else
char constexpr path_separator = '/';
if(result.back() == path_separator)
result.resize(result.size() - 1);
result.append(path.data(), path.size());
#endif
return result;
}
// This function produces an HTTP response for the given
// request. The type of the response object depends on the
// contents of the request, so the interface requires the
// caller to pass a generic lambda for receiving the response.
template<
class Body, class Allocator,
class Send>
void
handle_request(
beast::string_view doc_root,
http::request<Body, http::basic_fields<Allocator>>&& req,
Send&& send)
{
// Returns a bad request response
auto const bad_request =
[&req](beast::string_view why)
{
http::response<http::string_body> res{http::status::bad_request, req.version()};
res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
res.set(http::field::content_type, "text/html");
res.keep_alive(req.keep_alive());
res.body() = std::string(why);
res.prepare_payload();
return res;
};
// Returns a not found response
auto const not_found =
[&req](beast::string_view target)
{
http::response<http::string_body> res{http::status::not_found, req.version()};
res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
res.set(http::field::content_type, "text/html");
res.keep_alive(req.keep_alive());
res.body() = "The resource '" + std::string(target) + "' was not found.";
res.prepare_payload();
return res;
};
// Returns a server error response
auto const server_error =
[&req](beast::string_view what)
{
http::response<http::string_body> res{http::status::internal_server_error, req.version()};
res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
res.set(http::field::content_type, "text/html");
res.keep_alive(req.keep_alive());
res.body() = "An error occurred: '" + std::string(what) + "'";
res.prepare_payload();
return res;
};
// Make sure we can handle the method
if( req.method() != http::verb::get &&
req.method() != http::verb::head)
return send(bad_request("Unknown HTTP-method"));
// Request path must be absolute and not contain "..".
if( req.target().empty() ||
req.target()[0] != '/' ||
req.target().find("..") != beast::string_view::npos)
return send(bad_request("Illegal request-target"));
// Build the path to the requested file
std::string path = path_cat(doc_root, req.target());
if(req.target().back() == '/')
path.append("index.html");
// Attempt to open the file
beast::error_code ec;
http::file_body::value_type body;
body.open(path.c_str(), beast::file_mode::scan, ec);
// Handle the case where the file doesn't exist
if(ec == boost::system::errc::no_such_file_or_directory)
return send(not_found(req.target()));
// Handle an unknown error
if(ec)
return send(server_error(ec.message()));
// Cache the size since we need it after the move
auto const size = body.size();
// Respond to HEAD request
if(req.method() == http::verb::head)
{
http::response<http::empty_body> res{http::status::ok, req.version()};
res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
res.set(http::field::content_type, mime_type(path));
res.content_length(size);
res.keep_alive(req.keep_alive());
return send(std::move(res));
}
// Respond to GET request
http::response<http::file_body> res{
std::piecewise_construct,
std::make_tuple(std::move(body)),
std::make_tuple(http::status::ok, req.version())};
res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
res.set(http::field::content_type, mime_type(path));
res.content_length(size);
res.keep_alive(req.keep_alive());
return send(std::move(res));
}
//------------------------------------------------------------------------------
struct http_session::send_lambda
{
http_session& self_;
explicit
send_lambda(http_session& self)
: self_(self)
{
}
template<bool isRequest, class Body, class Fields>
void
operator()(http::message<isRequest, Body, Fields>&& msg) const
{
// The lifetime of the message has to extend
// for the duration of the async operation so
// we use a shared_ptr to manage it.
auto sp = boost::make_shared<
http::message<isRequest, Body, Fields>>(std::move(msg));
// Write the response
auto self = self_.shared_from_this();
http::async_write(
self_.stream_,
*sp,
[self, sp](beast::error_code ec, std::size_t bytes)
{
self->on_write(ec, bytes, sp->need_eof());
});
}
};
//------------------------------------------------------------------------------
http_session::
http_session(
tcp::socket&& socket,
boost::shared_ptr<shared_state> const& state)
: stream_(std::move(socket))
, state_(state)
{
}
void
http_session::
run()
{
do_read();
}
// Report a failure
void
http_session::
fail(beast::error_code ec, char const* what)
{
// Don't report on canceled operations
if(ec == net::error::operation_aborted)
return;
std::cerr << what << ": " << ec.message() << "\n";
}
void
http_session::
do_read()
{
// Construct a new parser for each message
parser_.emplace();
// Apply a reasonable limit to the allowed size
// of the body in bytes to prevent abuse.
parser_->body_limit(10000);
// Set the timeout.
stream_.expires_after(std::chrono::seconds(30));
// Read a request
http::async_read(
stream_,
buffer_,
parser_->get(),
beast::bind_front_handler(
&http_session::on_read,
shared_from_this()));
}
void
http_session::
on_read(beast::error_code ec, std::size_t)
{
// This means they closed the connection
if(ec == http::error::end_of_stream)
{
stream_.socket().shutdown(tcp::socket::shutdown_send, ec);
return;
}
// Handle the error, if any
if(ec)
return fail(ec, "read");
// See if it is a WebSocket Upgrade
if(websocket::is_upgrade(parser_->get()))
{
// Create a websocket session, transferring ownership
// of both the socket and the HTTP request.
boost::make_shared<websocket_session>(
stream_.release_socket(),
state_)->run(parser_->release());
return;
}
// Send the response
#ifndef BOOST_NO_CXX14_GENERIC_LAMBDAS
//
// The following code requires generic
// lambdas, available in C++14 and later.
//
handle_request(
state_->doc_root(),
std::move(req_),
[this](auto&& response)
{
// The lifetime of the message has to extend
// for the duration of the async operation so
// we use a shared_ptr to manage it.
using response_type = typename std::decay<decltype(response)>::type;
auto sp = boost::make_shared<response_type>(std::forward<decltype(response)>(response));
#if 0
// NOTE This causes an ICE in gcc 7.3
// Write the response
http::async_write(this->stream_, *sp,
[self = shared_from_this(), sp](
beast::error_code ec, std::size_t bytes)
{
self->on_write(ec, bytes, sp->need_eof());
});
#else
// Write the response
auto self = shared_from_this();
http::async_write(stream_, *sp,
[self, sp](
beast::error_code ec, std::size_t bytes)
{
self->on_write(ec, bytes, sp->need_eof());
});
#endif
});
#else
//
// This code uses the function object type send_lambda in
// place of a generic lambda which is not available in C++11
//
handle_request(
state_->doc_root(),
parser_->release(),
send_lambda(*this));
#endif
}
void
http_session::
on_write(beast::error_code ec, std::size_t, bool close)
{
// Handle the error, if any
if(ec)
return fail(ec, "write");
if(close)
{
// This means we should close the connection, usually because
// the response indicated the "Connection: close" semantic.
stream_.socket().shutdown(tcp::socket::shutdown_send, ec);
return;
}
// Read another request
do_read();
}

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@@ -0,0 +1,48 @@
//
// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// Official repository: https://github.com/vinniefalco/CppCon2018
//
#ifndef BOOST_BEAST_EXAMPLE_WEBSOCKET_CHAT_MULTI_HTTP_SESSION_HPP
#define BOOST_BEAST_EXAMPLE_WEBSOCKET_CHAT_MULTI_HTTP_SESSION_HPP
#include "net.hpp"
#include "beast.hpp"
#include "shared_state.hpp"
#include <boost/optional.hpp>
#include <boost/smart_ptr.hpp>
#include <cstdlib>
#include <memory>
/** Represents an established HTTP connection
*/
class http_session : public boost::enable_shared_from_this<http_session>
{
beast::tcp_stream stream_;
beast::flat_buffer buffer_;
boost::shared_ptr<shared_state> state_;
// The parser is stored in an optional container so we can
// construct it from scratch it at the beginning of each new message.
boost::optional<http::request_parser<http::string_body>> parser_;
struct send_lambda;
void fail(beast::error_code ec, char const* what);
void do_read();
void on_read(beast::error_code ec, std::size_t);
void on_write(beast::error_code ec, std::size_t, bool close);
public:
http_session(
tcp::socket&& socket,
boost::shared_ptr<shared_state> const& state);
void run();
};
#endif

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@@ -0,0 +1,101 @@
//
// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// Official repository: https://github.com/vinniefalco/CppCon2018
//
#include "listener.hpp"
#include "http_session.hpp"
#include <iostream>
listener::
listener(
net::io_context& ioc,
tcp::endpoint endpoint,
boost::shared_ptr<shared_state> const& state)
: ioc_(ioc)
, acceptor_(ioc)
, state_(state)
{
beast::error_code ec;
// Open the acceptor
acceptor_.open(endpoint.protocol(), ec);
if(ec)
{
fail(ec, "open");
return;
}
// Allow address reuse
acceptor_.set_option(net::socket_base::reuse_address(true), ec);
if(ec)
{
fail(ec, "set_option");
return;
}
// Bind to the server address
acceptor_.bind(endpoint, ec);
if(ec)
{
fail(ec, "bind");
return;
}
// Start listening for connections
acceptor_.listen(
net::socket_base::max_listen_connections, ec);
if(ec)
{
fail(ec, "listen");
return;
}
}
void
listener::
run()
{
// The new connection gets its own strand
acceptor_.async_accept(
net::make_strand(ioc_),
beast::bind_front_handler(
&listener::on_accept,
shared_from_this()));
}
// Report a failure
void
listener::
fail(beast::error_code ec, char const* what)
{
// Don't report on canceled operations
if(ec == net::error::operation_aborted)
return;
std::cerr << what << ": " << ec.message() << "\n";
}
// Handle a connection
void
listener::
on_accept(beast::error_code ec, tcp::socket socket)
{
if(ec)
return fail(ec, "accept");
else
// Launch a new session for this connection
boost::make_shared<http_session>(
std::move(socket),
state_)->run();
// The new connection gets its own strand
acceptor_.async_accept(
net::make_strand(ioc_),
beast::bind_front_handler(
&listener::on_accept,
shared_from_this()));
}

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@@ -0,0 +1,42 @@
//
// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// Official repository: https://github.com/vinniefalco/CppCon2018
//
#ifndef BOOST_BEAST_EXAMPLE_WEBSOCKET_CHAT_MULTI_LISTENER_HPP
#define BOOST_BEAST_EXAMPLE_WEBSOCKET_CHAT_MULTI_LISTENER_HPP
#include "beast.hpp"
#include "net.hpp"
#include <boost/smart_ptr.hpp>
#include <memory>
#include <string>
// Forward declaration
class shared_state;
// Accepts incoming connections and launches the sessions
class listener : public boost::enable_shared_from_this<listener>
{
net::io_context& ioc_;
tcp::acceptor acceptor_;
boost::shared_ptr<shared_state> state_;
void fail(beast::error_code ec, char const* what);
void on_accept(beast::error_code ec, tcp::socket socket);
public:
listener(
net::io_context& ioc,
tcp::endpoint endpoint,
boost::shared_ptr<shared_state> const& state);
// Start accepting incoming connections
void run();
};
#endif

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@@ -0,0 +1,84 @@
//
// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// Official repository: https://github.com/vinniefalco/CppCon2018
//
//------------------------------------------------------------------------------
/*
WebSocket chat server, multi-threaded
This implements a multi-user chat room using WebSocket. The
`io_context` runs on any number of threads, specified at
the command line.
*/
//------------------------------------------------------------------------------
#include "listener.hpp"
#include "shared_state.hpp"
#include <boost/asio/signal_set.hpp>
#include <boost/smart_ptr.hpp>
#include <iostream>
#include <vector>
int
main(int argc, char* argv[])
{
// Check command line arguments.
if (argc != 5)
{
std::cerr <<
"Usage: websocket-chat-multi <address> <port> <doc_root> <threads>\n" <<
"Example:\n" <<
" websocket-chat-server 0.0.0.0 8080 . 5\n";
return EXIT_FAILURE;
}
auto address = net::ip::make_address(argv[1]);
auto port = static_cast<unsigned short>(std::atoi(argv[2]));
auto doc_root = argv[3];
auto const threads = std::max<int>(1, std::atoi(argv[4]));
// The io_context is required for all I/O
net::io_context ioc;
// Create and launch a listening port
boost::make_shared<listener>(
ioc,
tcp::endpoint{address, port},
boost::make_shared<shared_state>(doc_root))->run();
// Capture SIGINT and SIGTERM to perform a clean shutdown
net::signal_set signals(ioc, SIGINT, SIGTERM);
signals.async_wait(
[&ioc](boost::system::error_code const&, int)
{
// Stop the io_context. This will cause run()
// to return immediately, eventually destroying the
// io_context and any remaining handlers in it.
ioc.stop();
});
// Run the I/O service on the requested number of threads
std::vector<std::thread> v;
v.reserve(threads - 1);
for(auto i = threads - 1; i > 0; --i)
v.emplace_back(
[&ioc]
{
ioc.run();
});
ioc.run();
// (If we get here, it means we got a SIGINT or SIGTERM)
// Block until all the threads exit
for(auto& t : v)
t.join();
return EXIT_SUCCESS;
}

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@@ -0,0 +1,18 @@
//
// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// Official repository: https://github.com/vinniefalco/CppCon2018
//
#ifndef BOOST_BEAST_EXAMPLE_WEBSOCKET_CHAT_MULTI_NET_HPP
#define BOOST_BEAST_EXAMPLE_WEBSOCKET_CHAT_MULTI_NET_HPP
#include <boost/asio.hpp>
namespace net = boost::asio; // from <boost/asio.hpp>
using tcp = boost::asio::ip::tcp; // from <boost/asio/ip/tcp.hpp>
#endif

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@@ -0,0 +1,59 @@
//
// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// Official repository: https://github.com/vinniefalco/CppCon2018
//
#include "shared_state.hpp"
#include "websocket_session.hpp"
shared_state::
shared_state(std::string doc_root)
: doc_root_(std::move(doc_root))
{
}
void
shared_state::
join(websocket_session* session)
{
std::lock_guard<std::mutex> lock(mutex_);
sessions_.insert(session);
}
void
shared_state::
leave(websocket_session* session)
{
std::lock_guard<std::mutex> lock(mutex_);
sessions_.erase(session);
}
// Broadcast a message to all websocket client sessions
void
shared_state::
send(std::string message)
{
// Put the message in a shared pointer so we can re-use it for each client
auto const ss = boost::make_shared<std::string const>(std::move(message));
// Make a local list of all the weak pointers representing
// the sessions, so we can do the actual sending without
// holding the mutex:
std::vector<boost::weak_ptr<websocket_session>> v;
{
std::lock_guard<std::mutex> lock(mutex_);
v.reserve(sessions_.size());
for(auto p : sessions_)
v.emplace_back(p->weak_from_this());
}
// For each session in our local list, try to acquire a strong
// pointer. If successful, then send the message on that session.
for(auto const& wp : v)
if(auto sp = wp.lock())
sp->send(ss);
}

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@@ -0,0 +1,48 @@
//
// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// Official repository: https://github.com/vinniefalco/CppCon2018
//
#ifndef BOOST_BEAST_EXAMPLE_WEBSOCKET_CHAT_MULTI_SHARED_STATE_HPP
#define BOOST_BEAST_EXAMPLE_WEBSOCKET_CHAT_MULTI_SHARED_STATE_HPP
#include <boost/smart_ptr.hpp>
#include <memory>
#include <mutex>
#include <string>
#include <unordered_set>
// Forward declaration
class websocket_session;
// Represents the shared server state
class shared_state
{
std::string const doc_root_;
// This mutex synchronizes all access to sessions_
std::mutex mutex_;
// Keep a list of all the connected clients
std::unordered_set<websocket_session*> sessions_;
public:
explicit
shared_state(std::string doc_root);
std::string const&
doc_root() const noexcept
{
return doc_root_;
}
void join (websocket_session* session);
void leave (websocket_session* session);
void send (std::string message);
};
#endif

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@@ -0,0 +1,135 @@
//
// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// Official repository: https://github.com/vinniefalco/CppCon2018
//
#include "websocket_session.hpp"
#include <iostream>
websocket_session::
websocket_session(
tcp::socket&& socket,
boost::shared_ptr<shared_state> const& state)
: ws_(std::move(socket))
, state_(state)
{
}
websocket_session::
~websocket_session()
{
// Remove this session from the list of active sessions
state_->leave(this);
}
void
websocket_session::
fail(beast::error_code ec, char const* what)
{
// Don't report these
if( ec == net::error::operation_aborted ||
ec == websocket::error::closed)
return;
std::cerr << what << ": " << ec.message() << "\n";
}
void
websocket_session::
on_accept(beast::error_code ec)
{
// Handle the error, if any
if(ec)
return fail(ec, "accept");
// Add this session to the list of active sessions
state_->join(this);
// Read a message
ws_.async_read(
buffer_,
beast::bind_front_handler(
&websocket_session::on_read,
shared_from_this()));
}
void
websocket_session::
on_read(beast::error_code ec, std::size_t)
{
// Handle the error, if any
if(ec)
return fail(ec, "read");
// Send to all connections
state_->send(beast::buffers_to_string(buffer_.data()));
// Clear the buffer
buffer_.consume(buffer_.size());
// Read another message
ws_.async_read(
buffer_,
beast::bind_front_handler(
&websocket_session::on_read,
shared_from_this()));
}
void
websocket_session::
send(boost::shared_ptr<std::string const> const& ss)
{
// Post our work to the strand, this ensures
// that the members of `this` will not be
// accessed concurrently.
net::post(
ws_.get_executor(),
beast::bind_front_handler(
&websocket_session::on_send,
shared_from_this(),
ss));
}
void
websocket_session::
on_send(boost::shared_ptr<std::string const> const& ss)
{
// Always add to queue
queue_.push_back(ss);
// Are we already writing?
if(queue_.size() > 1)
return;
// We are not currently writing, so send this immediately
ws_.async_write(
net::buffer(*queue_.front()),
beast::bind_front_handler(
&websocket_session::on_write,
shared_from_this()));
}
void
websocket_session::
on_write(beast::error_code ec, std::size_t)
{
// Handle the error, if any
if(ec)
return fail(ec, "write");
// Remove the string from the queue
queue_.erase(queue_.begin());
// Send the next message if any
if(! queue_.empty())
ws_.async_write(
net::buffer(*queue_.front()),
beast::bind_front_handler(
&websocket_session::on_write,
shared_from_this()));
}

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@@ -0,0 +1,86 @@
//
// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// Official repository: https://github.com/vinniefalco/CppCon2018
//
#ifndef BOOST_BEAST_EXAMPLE_WEBSOCKET_CHAT_MULTI_WEBSOCKET_SESSION_HPP
#define BOOST_BEAST_EXAMPLE_WEBSOCKET_CHAT_MULTI_WEBSOCKET_SESSION_HPP
#include "net.hpp"
#include "beast.hpp"
#include "shared_state.hpp"
#include <cstdlib>
#include <memory>
#include <string>
#include <vector>
// Forward declaration
class shared_state;
/** Represents an active WebSocket connection to the server
*/
class websocket_session : public boost::enable_shared_from_this<websocket_session>
{
beast::flat_buffer buffer_;
websocket::stream<beast::tcp_stream> ws_;
boost::shared_ptr<shared_state> state_;
std::vector<boost::shared_ptr<std::string const>> queue_;
void fail(beast::error_code ec, char const* what);
void on_accept(beast::error_code ec);
void on_read(beast::error_code ec, std::size_t bytes_transferred);
void on_write(beast::error_code ec, std::size_t bytes_transferred);
public:
websocket_session(
tcp::socket&& socket,
boost::shared_ptr<shared_state> const& state);
~websocket_session();
template<class Body, class Allocator>
void
run(http::request<Body, http::basic_fields<Allocator>> req);
// Send a message
void
send(boost::shared_ptr<std::string const> const& ss);
private:
void
on_send(boost::shared_ptr<std::string const> const& ss);
};
template<class Body, class Allocator>
void
websocket_session::
run(http::request<Body, http::basic_fields<Allocator>> req)
{
// Set suggested timeout settings for the websocket
ws_.set_option(
websocket::stream_base::timeout::suggested(
beast::role_type::server));
// Set a decorator to change the Server of the handshake
ws_.set_option(websocket::stream_base::decorator(
[](websocket::response_type& res)
{
res.set(http::field::server,
std::string(BOOST_BEAST_VERSION_STRING) +
" websocket-chat-multi");
}));
// Accept the websocket handshake
ws_.async_accept(
req,
beast::bind_front_handler(
&websocket_session::on_accept,
shared_from_this()));
}
#endif

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@@ -22,7 +22,10 @@ if (OPENSSL_FOUND)
set_property(TARGET websocket-server-coro-ssl PROPERTY FOLDER "example-websocket-server")
target_link_libraries (websocket-server-coro-ssl
${OPENSSL_LIBRARIES}
OpenSSL::SSL OpenSSL::Crypto
lib-asio
lib-asio-ssl
lib-beast
)
endif()

View File

@@ -7,10 +7,11 @@
# Official repository: https://github.com/boostorg/beast
#
import ac ;
project
: requirements
<library>ssl
<library>crypto
[ ac.check-library /boost/beast//lib-asio-ssl : <library>/boost/beast//lib-asio-ssl/<link>static : <build>no ]
;
exe websocket-server-coro-ssl :
@@ -18,4 +19,5 @@ exe websocket-server-coro-ssl :
:
<variant>coverage:<build>no
<variant>ubasan:<build>no
<library>/boost/coroutine//boost_coroutine
;

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@@ -1,5 +1,5 @@
//
// Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
@@ -16,11 +16,10 @@
#include "example/common/server_certificate.hpp"
#include <boost/beast/core.hpp>
#include <boost/beast/ssl.hpp>
#include <boost/beast/websocket.hpp>
#include <boost/beast/websocket/ssl.hpp>
#include <boost/asio/ip/tcp.hpp>
#include <boost/asio/spawn.hpp>
#include <boost/asio/ssl/stream.hpp>
#include <algorithm>
#include <cstdlib>
#include <functional>
@@ -30,15 +29,18 @@
#include <thread>
#include <vector>
using tcp = boost::asio::ip::tcp; // from <boost/asio/ip/tcp.hpp>
namespace ssl = boost::asio::ssl; // from <boost/asio/ssl.hpp>
namespace websocket = boost::beast::websocket; // from <boost/beast/websocket.hpp>
namespace beast = boost::beast; // from <boost/beast.hpp>
namespace http = beast::http; // from <boost/beast/http.hpp>
namespace websocket = beast::websocket; // from <boost/beast/websocket.hpp>
namespace net = boost::asio; // from <boost/asio.hpp>
namespace ssl = boost::asio::ssl; // from <boost/asio/ssl.hpp>
using tcp = boost::asio::ip::tcp; // from <boost/asio/ip/tcp.hpp>
//------------------------------------------------------------------------------
// Report a failure
void
fail(boost::system::error_code ec, char const* what)
fail(beast::error_code ec, char const* what)
{
std::cerr << what << ": " << ec.message() << "\n";
}
@@ -46,20 +48,38 @@ fail(boost::system::error_code ec, char const* what)
// Echoes back all received WebSocket messages
void
do_session(
tcp::socket& socket,
ssl::context& ctx,
boost::asio::yield_context yield)
websocket::stream<
beast::ssl_stream<beast::tcp_stream>>& ws,
net::yield_context yield)
{
boost::system::error_code ec;
beast::error_code ec;
// Construct the stream by moving in the socket
websocket::stream<ssl::stream<tcp::socket&>> ws{socket, ctx};
// Set the timeout.
beast::get_lowest_layer(ws).expires_after(std::chrono::seconds(30));
// Perform the SSL handshake
ws.next_layer().async_handshake(ssl::stream_base::server, yield[ec]);
if(ec)
return fail(ec, "handshake");
// Turn off the timeout on the tcp_stream, because
// the websocket stream has its own timeout system.
beast::get_lowest_layer(ws).expires_never();
// Set suggested timeout settings for the websocket
ws.set_option(
websocket::stream_base::timeout::suggested(
beast::role_type::server));
// Set a decorator to change the Server of the handshake
ws.set_option(websocket::stream_base::decorator(
[](websocket::response_type& res)
{
res.set(http::field::server,
std::string(BOOST_BEAST_VERSION_STRING) +
" websocket-server-coro-ssl");
}));
// Accept the websocket handshake
ws.async_accept(yield[ec]);
if(ec)
@@ -68,7 +88,7 @@ do_session(
for(;;)
{
// This buffer will hold the incoming message
boost::beast::multi_buffer buffer;
beast::flat_buffer buffer;
// Read a message
ws.async_read(buffer, yield[ec]);
@@ -93,12 +113,12 @@ do_session(
// Accepts incoming connections and launches the sessions
void
do_listen(
boost::asio::io_context& ioc,
net::io_context& ioc,
ssl::context& ctx,
tcp::endpoint endpoint,
boost::asio::yield_context yield)
net::yield_context yield)
{
boost::system::error_code ec;
beast::error_code ec;
// Open the acceptor
tcp::acceptor acceptor(ioc);
@@ -106,13 +126,18 @@ do_listen(
if(ec)
return fail(ec, "open");
// Allow address reuse
acceptor.set_option(net::socket_base::reuse_address(true), ec);
if(ec)
return fail(ec, "set_option");
// Bind to the server address
acceptor.bind(endpoint, ec);
if(ec)
return fail(ec, "bind");
// Start listening for connections
acceptor.listen(boost::asio::socket_base::max_listen_connections, ec);
acceptor.listen(net::socket_base::max_listen_connections, ec);
if(ec)
return fail(ec, "listen");
@@ -124,11 +149,11 @@ do_listen(
fail(ec, "accept");
else
boost::asio::spawn(
acceptor.get_executor().context(),
acceptor.get_executor(),
std::bind(
&do_session,
std::move(socket),
std::ref(ctx),
websocket::stream<beast::ssl_stream<
beast::tcp_stream>>(std::move(socket), ctx),
std::placeholders::_1));
}
}
@@ -144,15 +169,15 @@ int main(int argc, char* argv[])
" websocket-server-coro-ssl 0.0.0.0 8080 1\n";
return EXIT_FAILURE;
}
auto const address = boost::asio::ip::make_address(argv[1]);
auto const address = net::ip::make_address(argv[1]);
auto const port = static_cast<unsigned short>(std::atoi(argv[2]));
auto const threads = std::max<int>(1, std::atoi(argv[3]));
// The io_context is required for all I/O
boost::asio::io_context ioc{threads};
net::io_context ioc{threads};
// The SSL context is required, and holds certificates
ssl::context ctx{ssl::context::sslv23};
ssl::context ctx{ssl::context::tlsv12};
// This holds the self-signed certificate used by the server
load_server_certificate(ctx);

View File

@@ -16,4 +16,8 @@ add_executable (websocket-server-coro
websocket_server_coro.cpp
)
target_link_libraries(websocket-server-coro
lib-asio
lib-beast)
set_property(TARGET websocket-server-coro PROPERTY FOLDER "example-websocket-server")

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@@ -12,4 +12,5 @@ exe websocket-server-coro :
:
<variant>coverage:<build>no
<variant>ubasan:<build>no
<library>/boost/coroutine//boost_coroutine
;

View File

@@ -1,5 +1,5 @@
//
// Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
@@ -15,7 +15,6 @@
#include <boost/beast/core.hpp>
#include <boost/beast/websocket.hpp>
#include <boost/asio/ip/tcp.hpp>
#include <boost/asio/spawn.hpp>
#include <algorithm>
#include <cstdlib>
@@ -26,26 +25,42 @@
#include <thread>
#include <vector>
using tcp = boost::asio::ip::tcp; // from <boost/asio/ip/tcp.hpp>
namespace websocket = boost::beast::websocket; // from <boost/beast/websocket.hpp>
namespace beast = boost::beast; // from <boost/beast.hpp>
namespace http = beast::http; // from <boost/beast/http.hpp>
namespace websocket = beast::websocket; // from <boost/beast/websocket.hpp>
namespace net = boost::asio; // from <boost/asio.hpp>
using tcp = boost::asio::ip::tcp; // from <boost/asio/ip/tcp.hpp>
//------------------------------------------------------------------------------
// Report a failure
void
fail(boost::system::error_code ec, char const* what)
fail(beast::error_code ec, char const* what)
{
std::cerr << what << ": " << ec.message() << "\n";
}
// Echoes back all received WebSocket messages
void
do_session(tcp::socket& socket, boost::asio::yield_context yield)
do_session(
websocket::stream<beast::tcp_stream>& ws,
net::yield_context yield)
{
boost::system::error_code ec;
beast::error_code ec;
// Construct the stream by moving in the socket
websocket::stream<tcp::socket> ws{std::move(socket)};
// Set suggested timeout settings for the websocket
ws.set_option(
websocket::stream_base::timeout::suggested(
beast::role_type::server));
// Set a decorator to change the Server of the handshake
ws.set_option(websocket::stream_base::decorator(
[](websocket::response_type& res)
{
res.set(http::field::server,
std::string(BOOST_BEAST_VERSION_STRING) +
" websocket-server-coro");
}));
// Accept the websocket handshake
ws.async_accept(yield[ec]);
@@ -55,7 +70,7 @@ do_session(tcp::socket& socket, boost::asio::yield_context yield)
for(;;)
{
// This buffer will hold the incoming message
boost::beast::multi_buffer buffer;
beast::flat_buffer buffer;
// Read a message
ws.async_read(buffer, yield[ec]);
@@ -80,11 +95,11 @@ do_session(tcp::socket& socket, boost::asio::yield_context yield)
// Accepts incoming connections and launches the sessions
void
do_listen(
boost::asio::io_context& ioc,
net::io_context& ioc,
tcp::endpoint endpoint,
boost::asio::yield_context yield)
net::yield_context yield)
{
boost::system::error_code ec;
beast::error_code ec;
// Open the acceptor
tcp::acceptor acceptor(ioc);
@@ -92,13 +107,18 @@ do_listen(
if(ec)
return fail(ec, "open");
// Allow address reuse
acceptor.set_option(net::socket_base::reuse_address(true), ec);
if(ec)
return fail(ec, "set_option");
// Bind to the server address
acceptor.bind(endpoint, ec);
if(ec)
return fail(ec, "bind");
// Start listening for connections
acceptor.listen(boost::asio::socket_base::max_listen_connections, ec);
acceptor.listen(net::socket_base::max_listen_connections, ec);
if(ec)
return fail(ec, "listen");
@@ -110,10 +130,11 @@ do_listen(
fail(ec, "accept");
else
boost::asio::spawn(
acceptor.get_executor().context(),
acceptor.get_executor(),
std::bind(
&do_session,
std::move(socket),
websocket::stream<
beast::tcp_stream>(std::move(socket)),
std::placeholders::_1));
}
}
@@ -129,12 +150,12 @@ int main(int argc, char* argv[])
" websocket-server-coro 0.0.0.0 8080 1\n";
return EXIT_FAILURE;
}
auto const address = boost::asio::ip::make_address(argv[1]);
auto const address = net::ip::make_address(argv[1]);
auto const port = static_cast<unsigned short>(std::atoi(argv[2]));
auto const threads = std::max<int>(1, std::atoi(argv[3]));
// The io_context is required for all I/O
boost::asio::io_context ioc{threads};
net::io_context ioc(threads);
// Spawn a listening port
boost::asio::spawn(ioc,

View File

@@ -16,4 +16,8 @@ add_executable (websocket-server-fast
websocket_server_fast.cpp
)
target_link_libraries(websocket-server-fast
lib-asio
lib-beast)
set_property(TARGET websocket-server-fast PROPERTY FOLDER "example-websocket-server")

View File

@@ -12,4 +12,5 @@ exe websocket-server-fast :
:
<variant>coverage:<build>no
<variant>ubasan:<build>no
<library>/boost/coroutine//boost_coroutine
;

View File

@@ -1,5 +1,5 @@
//
// Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
@@ -30,10 +30,8 @@
#include <boost/beast/http.hpp>
#include <boost/beast/version.hpp>
#include <boost/beast/websocket.hpp>
#include <boost/asio/bind_executor.hpp>
#include <boost/asio/spawn.hpp>
#include <boost/asio/strand.hpp>
#include <boost/asio/ip/tcp.hpp>
#include <algorithm>
#include <cstdlib>
#include <functional>
@@ -43,15 +41,17 @@
#include <thread>
#include <vector>
using tcp = boost::asio::ip::tcp; // from <boost/asio/ip/tcp.hpp>
namespace http = boost::beast::http; // from <boost/beast/http.hpp>
namespace websocket = boost::beast::websocket; // from <boost/beast/websocket.hpp>
namespace beast = boost::beast; // from <boost/beast.hpp>
namespace http = beast::http; // from <boost/beast/http.hpp>
namespace websocket = beast::websocket; // from <boost/beast/websocket.hpp>
namespace net = boost::asio; // from <boost/asio.hpp>
using tcp = boost::asio::ip::tcp; // from <boost/asio/ip/tcp.hpp>
//------------------------------------------------------------------------------
// Report a failure
void
fail(boost::system::error_code ec, char const* what)
fail(beast::error_code ec, char const* what)
{
std::cerr << (std::string(what) + ": " + ec.message() + "\n");
}
@@ -79,27 +79,28 @@ setup_stream(websocket::stream<NextLayer>& ws)
//------------------------------------------------------------------------------
void
do_sync_session(tcp::socket& socket)
do_sync_session(websocket::stream<beast::tcp_stream>& ws)
{
boost::system::error_code ec;
beast::error_code ec;
websocket::stream<tcp::socket> ws{std::move(socket)};
setup_stream(ws);
ws.accept_ex(
// Set a decorator to change the Server of the handshake
ws.set_option(websocket::stream_base::decorator(
[](websocket::response_type& res)
{
res.set(http::field::server,
"Boost.Beast/" + std::to_string(BOOST_BEAST_VERSION) + "-Sync");
},
ec);
res.set(http::field::server, std::string(
BOOST_BEAST_VERSION_STRING) + "-Sync");
}));
ws.accept(ec);
if(ec)
return fail(ec, "accept");
for(;;)
{
boost::beast::multi_buffer buffer;
beast::flat_buffer buffer;
ws.read(buffer, ec);
if(ec == websocket::error::closed)
break;
@@ -114,10 +115,10 @@ do_sync_session(tcp::socket& socket)
void
do_sync_listen(
boost::asio::io_context& ioc,
net::io_context& ioc,
tcp::endpoint endpoint)
{
boost::system::error_code ec;
beast::error_code ec;
tcp::acceptor acceptor{ioc, endpoint};
for(;;)
{
@@ -127,9 +128,10 @@ do_sync_listen(
if(ec)
return fail(ec, "accept");
std::thread{std::bind(
std::thread(std::bind(
&do_sync_session,
std::move(socket))}.detach();
websocket::stream<beast::tcp_stream>(
std::move(socket)))).detach();
}
}
@@ -138,17 +140,14 @@ do_sync_listen(
// Echoes back all received WebSocket messages
class async_session : public std::enable_shared_from_this<async_session>
{
websocket::stream<tcp::socket> ws_;
boost::asio::strand<
boost::asio::io_context::executor_type> strand_;
boost::beast::multi_buffer buffer_;
websocket::stream<beast::tcp_stream> ws_;
beast::flat_buffer buffer_;
public:
// Take ownership of the socket
explicit
async_session(tcp::socket socket)
async_session(tcp::socket&& socket)
: ws_(std::move(socket))
, strand_(ws_.get_executor())
{
setup_stream(ws_);
}
@@ -157,23 +156,28 @@ public:
void
run()
{
// Accept the websocket handshake
ws_.async_accept_ex(
// Set suggested timeout settings for the websocket
ws_.set_option(
websocket::stream_base::timeout::suggested(
beast::role_type::server));
// Set a decorator to change the Server of the handshake
ws_.set_option(websocket::stream_base::decorator(
[](websocket::response_type& res)
{
res.set(http::field::server,
"Boost.Beast/" + std::to_string(BOOST_BEAST_VERSION) + "-Async");
},
boost::asio::bind_executor(
strand_,
std::bind(
&async_session::on_accept,
shared_from_this(),
std::placeholders::_1)));
res.set(http::field::server, std::string(
BOOST_BEAST_VERSION_STRING) + "-Async");
}));
// Accept the websocket handshake
ws_.async_accept(
beast::bind_front_handler(
&async_session::on_accept,
shared_from_this()));
}
void
on_accept(boost::system::error_code ec)
on_accept(beast::error_code ec)
{
if(ec)
return fail(ec, "accept");
@@ -188,18 +192,14 @@ public:
// Read a message into our buffer
ws_.async_read(
buffer_,
boost::asio::bind_executor(
strand_,
std::bind(
&async_session::on_read,
shared_from_this(),
std::placeholders::_1,
std::placeholders::_2)));
beast::bind_front_handler(
&async_session::on_read,
shared_from_this()));
}
void
on_read(
boost::system::error_code ec,
beast::error_code ec,
std::size_t bytes_transferred)
{
boost::ignore_unused(bytes_transferred);
@@ -215,18 +215,14 @@ public:
ws_.text(ws_.got_text());
ws_.async_write(
buffer_.data(),
boost::asio::bind_executor(
strand_,
std::bind(
&async_session::on_write,
shared_from_this(),
std::placeholders::_1,
std::placeholders::_2)));
beast::bind_front_handler(
&async_session::on_write,
shared_from_this()));
}
void
on_write(
boost::system::error_code ec,
beast::error_code ec,
std::size_t bytes_transferred)
{
boost::ignore_unused(bytes_transferred);
@@ -245,20 +241,17 @@ public:
// Accepts incoming connections and launches the sessions
class async_listener : public std::enable_shared_from_this<async_listener>
{
boost::asio::strand<
boost::asio::io_context::executor_type> strand_;
net::io_context& ioc_;
tcp::acceptor acceptor_;
tcp::socket socket_;
public:
async_listener(
boost::asio::io_context& ioc,
net::io_context& ioc,
tcp::endpoint endpoint)
: strand_(ioc.get_executor())
, acceptor_(ioc)
, socket_(ioc)
: ioc_(ioc)
, acceptor_(net::make_strand(ioc))
{
boost::system::error_code ec;
beast::error_code ec;
// Open the acceptor
acceptor_.open(endpoint.protocol(), ec);
@@ -268,6 +261,14 @@ public:
return;
}
// Allow address reuse
acceptor_.set_option(net::socket_base::reuse_address(true), ec);
if(ec)
{
fail(ec, "set_option");
return;
}
// Bind to the server address
acceptor_.bind(endpoint, ec);
if(ec)
@@ -278,7 +279,7 @@ public:
// Start listening for connections
acceptor_.listen(
boost::asio::socket_base::max_listen_connections, ec);
net::socket_base::max_listen_connections, ec);
if(ec)
{
fail(ec, "listen");
@@ -290,26 +291,23 @@ public:
void
run()
{
if(! acceptor_.is_open())
return;
do_accept();
}
private:
void
do_accept()
{
// The new connection gets its own strand
acceptor_.async_accept(
socket_,
boost::asio::bind_executor(
strand_,
std::bind(
&async_listener::on_accept,
shared_from_this(),
std::placeholders::_1)));
net::make_strand(ioc_),
beast::bind_front_handler(
&async_listener::on_accept,
shared_from_this()));
}
void
on_accept(boost::system::error_code ec)
on_accept(beast::error_code ec, tcp::socket socket)
{
if(ec)
{
@@ -318,7 +316,7 @@ public:
else
{
// Create the async_session and run it
std::make_shared<async_session>(std::move(socket_))->run();
std::make_shared<async_session>(std::move(socket))->run();
}
// Accept another connection
@@ -329,26 +327,34 @@ public:
//------------------------------------------------------------------------------
void
do_coro_session(tcp::socket& socket, boost::asio::yield_context yield)
do_coro_session(
websocket::stream<beast::tcp_stream>& ws,
net::yield_context yield)
{
boost::system::error_code ec;
beast::error_code ec;
websocket::stream<tcp::socket> ws{std::move(socket)};
setup_stream(ws);
ws.async_accept_ex(
[&](websocket::response_type& res)
// Set suggested timeout settings for the websocket
ws.set_option(
websocket::stream_base::timeout::suggested(
beast::role_type::server));
// Set a decorator to change the Server of the handshake
ws.set_option(websocket::stream_base::decorator(
[](websocket::response_type& res)
{
res.set(http::field::server,
"Boost.Beast/" + std::to_string(BOOST_BEAST_VERSION) + "-Coro");
},
yield[ec]);
res.set(http::field::server, std::string(
BOOST_BEAST_VERSION_STRING) + "-Fiber");
}));
ws.async_accept(yield[ec]);
if(ec)
return fail(ec, "accept");
for(;;)
{
boost::beast::multi_buffer buffer;
beast::flat_buffer buffer;
ws.async_read(buffer, yield[ec]);
if(ec == websocket::error::closed)
@@ -365,22 +371,26 @@ do_coro_session(tcp::socket& socket, boost::asio::yield_context yield)
void
do_coro_listen(
boost::asio::io_context& ioc,
net::io_context& ioc,
tcp::endpoint endpoint,
boost::asio::yield_context yield)
net::yield_context yield)
{
boost::system::error_code ec;
beast::error_code ec;
tcp::acceptor acceptor(ioc);
acceptor.open(endpoint.protocol(), ec);
if(ec)
return fail(ec, "open");
acceptor.set_option(net::socket_base::reuse_address(true), ec);
if(ec)
return fail(ec, "set_option");
acceptor.bind(endpoint, ec);
if(ec)
return fail(ec, "bind");
acceptor.listen(boost::asio::socket_base::max_listen_connections, ec);
acceptor.listen(net::socket_base::max_listen_connections, ec);
if(ec)
return fail(ec, "listen");
@@ -396,10 +406,11 @@ do_coro_listen(
}
boost::asio::spawn(
acceptor.get_executor().context(),
acceptor.get_executor(),
std::bind(
&do_coro_session,
std::move(socket),
websocket::stream<
beast::tcp_stream>(std::move(socket)),
std::placeholders::_1));
}
}
@@ -421,15 +432,15 @@ int main(int argc, char* argv[])
" starting-port+2 for coroutine.\n";
return EXIT_FAILURE;
}
auto const address = boost::asio::ip::make_address(argv[1]);
auto const address = net::ip::make_address(argv[1]);
auto const port = static_cast<unsigned short>(std::atoi(argv[2]));
auto const threads = std::max<int>(1, std::atoi(argv[3]));
// The io_context is required for all I/O
boost::asio::io_context ioc{threads};
net::io_context ioc{threads};
// Create sync port
std::thread(std::bind(
std::thread(beast::bind_front_handler(
&do_sync_listen,
std::ref(ioc),
tcp::endpoint{

View File

@@ -22,7 +22,10 @@ if (OPENSSL_FOUND)
set_property(TARGET websocket-server-stackless-ssl PROPERTY FOLDER "example-websocket-server")
target_link_libraries (websocket-server-stackless-ssl
${OPENSSL_LIBRARIES}
OpenSSL::SSL OpenSSL::Crypto
lib-asio
lib-asio-ssl
lib-beast
)
endif()

View File

@@ -7,10 +7,11 @@
# Official repository: https://github.com/boostorg/beast
#
import ac ;
project
: requirements
<library>ssl
<library>crypto
[ ac.check-library /boost/beast//lib-asio-ssl : <library>/boost/beast//lib-asio-ssl/<link>static : <build>no ]
;
exe websocket-server-stackless-ssl :

View File

@@ -1,5 +1,5 @@
//
// Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
@@ -16,13 +16,12 @@
#include "example/common/server_certificate.hpp"
#include <boost/beast/core.hpp>
#include <boost/beast/ssl.hpp>
#include <boost/beast/websocket.hpp>
#include <boost/beast/websocket/ssl.hpp>
#include <boost/asio/bind_executor.hpp>
#include <boost/asio/coroutine.hpp>
#include <boost/asio/ip/tcp.hpp>
#include <boost/asio/ssl/stream.hpp>
#include <boost/asio/strand.hpp>
#include <boost/asio/dispatch.hpp>
#include <algorithm>
#include <cstdlib>
#include <functional>
@@ -32,15 +31,18 @@
#include <thread>
#include <vector>
using tcp = boost::asio::ip::tcp; // from <boost/asio/ip/tcp.hpp>
namespace ssl = boost::asio::ssl; // from <boost/asio/ssl.hpp>
namespace websocket = boost::beast::websocket; // from <boost/beast/websocket.hpp>
namespace beast = boost::beast; // from <boost/beast.hpp>
namespace http = beast::http; // from <boost/beast/http.hpp>
namespace websocket = beast::websocket; // from <boost/beast/websocket.hpp>
namespace net = boost::asio; // from <boost/asio.hpp>
namespace ssl = boost::asio::ssl; // from <boost/asio/ssl.hpp>
using tcp = boost::asio::ip::tcp; // from <boost/asio/ip/tcp.hpp>
//------------------------------------------------------------------------------
// Report a failure
void
fail(boost::system::error_code ec, char const* what)
fail(beast::error_code ec, char const* what)
{
std::cerr << what << ": " << ec.message() << "\n";
}
@@ -50,18 +52,13 @@ class session
: public boost::asio::coroutine
, public std::enable_shared_from_this<session>
{
tcp::socket socket_;
websocket::stream<ssl::stream<tcp::socket&>> ws_;
boost::asio::strand<
boost::asio::io_context::executor_type> strand_;
boost::beast::multi_buffer buffer_;
websocket::stream<beast::ssl_stream<beast::tcp_stream>> ws_;
beast::flat_buffer buffer_;
public:
// Take ownership of the socket
session(tcp::socket socket, ssl::context& ctx)
: socket_(std::move(socket))
, ws_(socket_, ctx)
, strand_(ws_.get_executor())
session(tcp::socket&& socket, ssl::context& ctx)
: ws_(std::move(socket), ctx)
{
}
@@ -69,41 +66,67 @@ public:
void
run()
{
loop({}, 0);
// We need to be executing within a strand to perform async operations
// on the I/O objects in this session. Although not strictly necessary
// for single-threaded contexts, this example code is written to be
// thread-safe by default.
net::dispatch(ws_.get_executor(),
beast::bind_front_handler(&session::loop,
shared_from_this(),
beast::error_code{},
0));
}
#include <boost/asio/yield.hpp>
#include <boost/asio/yield.hpp>
void
loop(
boost::system::error_code ec,
beast::error_code ec,
std::size_t bytes_transferred)
{
boost::ignore_unused(bytes_transferred);
reenter(*this)
{
// Set the timeout.
beast::get_lowest_layer(ws_).expires_after(std::chrono::seconds(30));
// Perform the SSL handshake
yield ws_.next_layer().async_handshake(
ssl::stream_base::server,
boost::asio::bind_executor(
strand_,
std::bind(
&session::loop,
shared_from_this(),
std::placeholders::_1,
0)));
std::bind(
&session::loop,
shared_from_this(),
std::placeholders::_1,
0));
if(ec)
return fail(ec, "handshake");
// Turn off the timeout on the tcp_stream, because
// the websocket stream has its own timeout system.
beast::get_lowest_layer(ws_).expires_never();
// Set suggested timeout settings for the websocket
ws_.set_option(
websocket::stream_base::timeout::suggested(
beast::role_type::server));
// Set a decorator to change the Server of the handshake
ws_.set_option(websocket::stream_base::decorator(
[](websocket::response_type& res)
{
res.set(http::field::server,
std::string(BOOST_BEAST_VERSION_STRING) +
" websocket-server-stackless-ssl");
}));
// Accept the websocket handshake
yield ws_.async_accept(
boost::asio::bind_executor(
strand_,
std::bind(
&session::loop,
shared_from_this(),
std::placeholders::_1,
0)));
std::bind(
&session::loop,
shared_from_this(),
std::placeholders::_1,
0));
if(ec)
return fail(ec, "accept");
@@ -112,13 +135,11 @@ public:
// Read a message into our buffer
yield ws_.async_read(
buffer_,
boost::asio::bind_executor(
strand_,
std::bind(
&session::loop,
shared_from_this(),
std::placeholders::_1,
std::placeholders::_2)));
std::bind(
&session::loop,
shared_from_this(),
std::placeholders::_1,
std::placeholders::_2));
if(ec == websocket::error::closed)
{
// This indicates that the session was closed
@@ -131,13 +152,11 @@ public:
ws_.text(ws_.got_text());
yield ws_.async_write(
buffer_.data(),
boost::asio::bind_executor(
strand_,
std::bind(
&session::loop,
shared_from_this(),
std::placeholders::_1,
std::placeholders::_2)));
std::bind(
&session::loop,
shared_from_this(),
std::placeholders::_1,
std::placeholders::_2));
if(ec)
return fail(ec, "write");
@@ -146,7 +165,8 @@ public:
}
}
}
#include <boost/asio/unyield.hpp>
#include <boost/asio/unyield.hpp>
};
//------------------------------------------------------------------------------
@@ -156,20 +176,22 @@ class listener
: public boost::asio::coroutine
, public std::enable_shared_from_this<listener>
{
net::io_context& ioc_;
ssl::context& ctx_;
tcp::acceptor acceptor_;
tcp::socket socket_;
public:
listener(
boost::asio::io_context& ioc,
net::io_context& ioc,
ssl::context& ctx,
tcp::endpoint endpoint)
: ctx_(ctx)
: ioc_(ioc)
, ctx_(ctx)
, acceptor_(ioc)
, socket_(ioc)
{
boost::system::error_code ec;
beast::error_code ec;
// Open the acceptor
acceptor_.open(endpoint.protocol(), ec);
@@ -179,6 +201,14 @@ public:
return;
}
// Allow address reuse
acceptor_.set_option(net::socket_base::reuse_address(true), ec);
if(ec)
{
fail(ec, "set_option");
return;
}
// Bind to the server address
acceptor_.bind(endpoint, ec);
if(ec)
@@ -189,7 +219,7 @@ public:
// Start listening for connections
acceptor_.listen(
boost::asio::socket_base::max_listen_connections, ec);
net::socket_base::max_listen_connections, ec);
if(ec)
{
fail(ec, "listen");
@@ -201,14 +231,15 @@ public:
void
run()
{
if(! acceptor_.is_open())
return;
loop();
}
#include <boost/asio/yield.hpp>
private:
#include <boost/asio/yield.hpp>
void
loop(boost::system::error_code ec = {})
loop(beast::error_code ec = {})
{
reenter(*this)
{
@@ -229,10 +260,14 @@ public:
// Create the session and run it
std::make_shared<session>(std::move(socket_), ctx_)->run();
}
// Make sure each session gets its own strand
socket_ = tcp::socket(net::make_strand(ioc_));
}
}
}
#include <boost/asio/unyield.hpp>
#include <boost/asio/unyield.hpp>
};
//------------------------------------------------------------------------------
@@ -248,15 +283,15 @@ int main(int argc, char* argv[])
" websocket-server-async-ssl 0.0.0.0 8080 1\n";
return EXIT_FAILURE;
}
auto const address = boost::asio::ip::make_address(argv[1]);
auto const address = net::ip::make_address(argv[1]);
auto const port = static_cast<unsigned short>(std::atoi(argv[2]));
auto const threads = std::max<int>(1, std::atoi(argv[3]));
// The io_context is required for all I/O
boost::asio::io_context ioc{threads};
net::io_context ioc{threads};
// The SSL context is required, and holds certificates
ssl::context ctx{ssl::context::sslv23};
ssl::context ctx{ssl::context::tlsv12};
// This holds the self-signed certificate used by the server
load_server_certificate(ctx);

View File

@@ -16,4 +16,8 @@ add_executable (websocket-server-stackless
websocket_server_stackless.cpp
)
target_link_libraries(websocket-server-stackless
lib-asio
lib-beast)
set_property(TARGET websocket-server-stackless PROPERTY FOLDER "example-websocket-server")

View File

@@ -1,5 +1,5 @@
//
// Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
@@ -15,10 +15,9 @@
#include <boost/beast/core.hpp>
#include <boost/beast/websocket.hpp>
#include <boost/asio/bind_executor.hpp>
#include <boost/asio/coroutine.hpp>
#include <boost/asio/strand.hpp>
#include <boost/asio/ip/tcp.hpp>
#include <boost/asio/dispatch.hpp>
#include <algorithm>
#include <cstdlib>
#include <functional>
@@ -28,14 +27,17 @@
#include <thread>
#include <vector>
using tcp = boost::asio::ip::tcp; // from <boost/asio/ip/tcp.hpp>
namespace websocket = boost::beast::websocket; // from <boost/beast/websocket.hpp>
namespace beast = boost::beast; // from <boost/beast.hpp>
namespace http = beast::http; // from <boost/beast/http.hpp>
namespace websocket = beast::websocket; // from <boost/beast/websocket.hpp>
namespace net = boost::asio; // from <boost/asio.hpp>
using tcp = boost::asio::ip::tcp; // from <boost/asio/ip/tcp.hpp>
//------------------------------------------------------------------------------
// Report a failure
void
fail(boost::system::error_code ec, char const* what)
fail(beast::error_code ec, char const* what)
{
std::cerr << what << ": " << ec.message() << "\n";
}
@@ -45,17 +47,14 @@ class session
: public boost::asio::coroutine
, public std::enable_shared_from_this<session>
{
websocket::stream<tcp::socket> ws_;
boost::asio::strand<
boost::asio::io_context::executor_type> strand_;
boost::beast::multi_buffer buffer_;
websocket::stream<beast::tcp_stream> ws_;
beast::flat_buffer buffer_;
public:
// Take ownership of the socket
explicit
session(tcp::socket socket)
: ws_(std::move(socket))
, strand_(ws_.get_executor())
{
}
@@ -63,27 +62,48 @@ public:
void
run()
{
loop({}, 0);
// We need to be executing within a strand to perform async operations
// on the I/O objects in this session. Although not strictly necessary
// for single-threaded contexts, this example code is written to be
// thread-safe by default.
net::dispatch(ws_.get_executor(),
beast::bind_front_handler(&session::loop,
shared_from_this(),
beast::error_code{},
0));
}
#include <boost/asio/yield.hpp>
#include <boost/asio/yield.hpp>
void
loop(
boost::system::error_code ec,
beast::error_code ec,
std::size_t bytes_transferred)
{
boost::ignore_unused(bytes_transferred);
reenter(*this)
{
// Set suggested timeout settings for the websocket
ws_.set_option(
websocket::stream_base::timeout::suggested(
beast::role_type::server));
// Set a decorator to change the Server of the handshake
ws_.set_option(websocket::stream_base::decorator(
[](websocket::response_type& res)
{
res.set(http::field::server,
std::string(BOOST_BEAST_VERSION_STRING) +
" websocket-server-stackless");
}));
// Accept the websocket handshake
yield ws_.async_accept(
boost::asio::bind_executor(
strand_,
std::bind(
&session::loop,
shared_from_this(),
std::placeholders::_1,
0)));
std::bind(
&session::loop,
shared_from_this(),
std::placeholders::_1,
0));
if(ec)
return fail(ec, "accept");
@@ -92,13 +112,11 @@ public:
// Read a message into our buffer
yield ws_.async_read(
buffer_,
boost::asio::bind_executor(
strand_,
std::bind(
&session::loop,
shared_from_this(),
std::placeholders::_1,
std::placeholders::_2)));
std::bind(
&session::loop,
shared_from_this(),
std::placeholders::_1,
std::placeholders::_2));
if(ec == websocket::error::closed)
{
// This indicates that the session was closed
@@ -111,13 +129,11 @@ public:
ws_.text(ws_.got_text());
yield ws_.async_write(
buffer_.data(),
boost::asio::bind_executor(
strand_,
std::bind(
&session::loop,
shared_from_this(),
std::placeholders::_1,
std::placeholders::_2)));
std::bind(
&session::loop,
shared_from_this(),
std::placeholders::_1,
std::placeholders::_2));
if(ec)
return fail(ec, "write");
@@ -126,7 +142,8 @@ public:
}
}
}
#include <boost/asio/unyield.hpp>
#include <boost/asio/unyield.hpp>
};
//------------------------------------------------------------------------------
@@ -136,17 +153,19 @@ class listener
: public boost::asio::coroutine
, public std::enable_shared_from_this<listener>
{
net::io_context& ioc_;
tcp::acceptor acceptor_;
tcp::socket socket_;
public:
listener(
boost::asio::io_context& ioc,
net::io_context& ioc,
tcp::endpoint endpoint)
: acceptor_(ioc)
, socket_(ioc)
: ioc_(ioc)
, acceptor_(net::make_strand(ioc))
, socket_(net::make_strand(ioc))
{
boost::system::error_code ec;
beast::error_code ec;
// Open the acceptor
acceptor_.open(endpoint.protocol(), ec);
@@ -156,6 +175,14 @@ public:
return;
}
// Allow address reuse
acceptor_.set_option(net::socket_base::reuse_address(true), ec);
if(ec)
{
fail(ec, "set_option");
return;
}
// Bind to the server address
acceptor_.bind(endpoint, ec);
if(ec)
@@ -166,7 +193,7 @@ public:
// Start listening for connections
acceptor_.listen(
boost::asio::socket_base::max_listen_connections, ec);
net::socket_base::max_listen_connections, ec);
if(ec)
{
fail(ec, "listen");
@@ -178,14 +205,15 @@ public:
void
run()
{
if(! acceptor_.is_open())
return;
loop();
}
#include <boost/asio/yield.hpp>
private:
#include <boost/asio/yield.hpp>
void
loop(boost::system::error_code ec = {})
loop(beast::error_code ec = {})
{
reenter(*this)
{
@@ -206,10 +234,14 @@ public:
// Create the session and run it
std::make_shared<session>(std::move(socket_))->run();
}
// Make sure each session gets its own strand
socket_ = tcp::socket(net::make_strand(ioc_));
}
}
}
#include <boost/asio/unyield.hpp>
#include <boost/asio/unyield.hpp>
};
//------------------------------------------------------------------------------
@@ -225,12 +257,12 @@ int main(int argc, char* argv[])
" websocket-server-stackless 0.0.0.0 8080 1\n";
return EXIT_FAILURE;
}
auto const address = boost::asio::ip::make_address(argv[1]);
auto const address = net::ip::make_address(argv[1]);
auto const port = static_cast<unsigned short>(std::atoi(argv[2]));
auto const threads = std::max<int>(1, std::atoi(argv[3]));
// The io_context is required for all I/O
boost::asio::io_context ioc{threads};
net::io_context ioc{threads};
// Create and launch a listening port
std::make_shared<listener>(ioc, tcp::endpoint{address, port})->run();

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@@ -22,7 +22,10 @@ if (OPENSSL_FOUND)
set_property(TARGET websocket-server-sync-ssl PROPERTY FOLDER "example-websocket-server")
target_link_libraries (websocket-server-sync-ssl
${OPENSSL_LIBRARIES}
OpenSSL::SSL OpenSSL::Crypto
lib-asio
lib-asio-ssl
lib-beast
)
endif()

View File

@@ -7,10 +7,11 @@
# Official repository: https://github.com/boostorg/beast
#
import ac ;
project
: requirements
<library>ssl
<library>crypto
[ ac.check-library /boost/beast//lib-asio-ssl : <library>/boost/beast//lib-asio-ssl/<link>static : <build>no ]
;
exe websocket-server-sync-ssl :

View File

@@ -1,5 +1,5 @@
//
// Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
@@ -16,6 +16,7 @@
#include "example/common/server_certificate.hpp"
#include <boost/beast/core.hpp>
#include <boost/beast/ssl.hpp>
#include <boost/beast/websocket.hpp>
#include <boost/beast/websocket/ssl.hpp>
#include <boost/asio/ip/tcp.hpp>
@@ -26,31 +27,43 @@
#include <string>
#include <thread>
using tcp = boost::asio::ip::tcp; // from <boost/asio/ip/tcp.hpp>
namespace ssl = boost::asio::ssl; // from <boost/asio/ssl.hpp>
namespace websocket = boost::beast::websocket; // from <boost/beast/websocket.hpp>
namespace beast = boost::beast; // from <boost/beast.hpp>
namespace http = beast::http; // from <boost/beast/http.hpp>
namespace websocket = beast::websocket; // from <boost/beast/websocket.hpp>
namespace net = boost::asio; // from <boost/asio.hpp>
namespace ssl = boost::asio::ssl; // from <boost/asio/ssl.hpp>
using tcp = boost::asio::ip::tcp; // from <boost/asio/ip/tcp.hpp>
//------------------------------------------------------------------------------
// Echoes back all received WebSocket messages
void
do_session(tcp::socket& socket, ssl::context& ctx)
do_session(tcp::socket socket, ssl::context& ctx)
{
try
{
// Construct the websocket stream around the socket
websocket::stream<ssl::stream<tcp::socket&>> ws{socket, ctx};
websocket::stream<beast::ssl_stream<tcp::socket&>> ws{socket, ctx};
// Perform the SSL handshake
ws.next_layer().handshake(ssl::stream_base::server);
// Set a decorator to change the Server of the handshake
ws.set_option(websocket::stream_base::decorator(
[](websocket::response_type& res)
{
res.set(http::field::server,
std::string(BOOST_BEAST_VERSION_STRING) +
" websocket-server-sync-ssl");
}));
// Accept the websocket handshake
ws.accept();
for(;;)
{
// This buffer will hold the incoming message
boost::beast::multi_buffer buffer;
beast::flat_buffer buffer;
// Read a message
ws.read(buffer);
@@ -60,7 +73,7 @@ do_session(tcp::socket& socket, ssl::context& ctx)
ws.write(buffer.data());
}
}
catch(boost::system::system_error const& se)
catch(beast::system_error const& se)
{
// This indicates that the session was closed
if(se.code() != websocket::error::closed)
@@ -87,14 +100,14 @@ int main(int argc, char* argv[])
" websocket-server-sync-ssl 0.0.0.0 8080\n";
return EXIT_FAILURE;
}
auto const address = boost::asio::ip::make_address(argv[1]);
auto const address = net::ip::make_address(argv[1]);
auto const port = static_cast<unsigned short>(std::atoi(argv[2]));
// The io_context is required for all I/O
boost::asio::io_context ioc{1};
net::io_context ioc{1};
// The SSL context is required, and holds certificates
ssl::context ctx{ssl::context::sslv23};
ssl::context ctx{ssl::context::tlsv12};
// This holds the self-signed certificate used by the server
load_server_certificate(ctx);
@@ -110,10 +123,10 @@ int main(int argc, char* argv[])
acceptor.accept(socket);
// Launch the session, transferring ownership of the socket
std::thread{std::bind(
std::thread(
&do_session,
std::move(socket),
std::ref(ctx))}.detach();
std::ref(ctx)).detach();
}
}
catch (const std::exception& e)

View File

@@ -16,4 +16,8 @@ add_executable (websocket-server-sync
websocket_server_sync.cpp
)
target_link_libraries(websocket-server-sync
lib-asio
lib-beast)
set_property(TARGET websocket-server-sync PROPERTY FOLDER "example-websocket-server")

View File

@@ -1,5 +1,5 @@
//
// Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
@@ -22,27 +22,39 @@
#include <string>
#include <thread>
using tcp = boost::asio::ip::tcp; // from <boost/asio/ip/tcp.hpp>
namespace websocket = boost::beast::websocket; // from <boost/beast/websocket.hpp>
namespace beast = boost::beast; // from <boost/beast.hpp>
namespace http = beast::http; // from <boost/beast/http.hpp>
namespace websocket = beast::websocket; // from <boost/beast/websocket.hpp>
namespace net = boost::asio; // from <boost/asio.hpp>
using tcp = boost::asio::ip::tcp; // from <boost/asio/ip/tcp.hpp>
//------------------------------------------------------------------------------
// Echoes back all received WebSocket messages
void
do_session(tcp::socket& socket)
do_session(tcp::socket socket)
{
try
{
// Construct the stream by moving in the socket
websocket::stream<tcp::socket> ws{std::move(socket)};
// Set a decorator to change the Server of the handshake
ws.set_option(websocket::stream_base::decorator(
[](websocket::response_type& res)
{
res.set(http::field::server,
std::string(BOOST_BEAST_VERSION_STRING) +
" websocket-server-sync");
}));
// Accept the websocket handshake
ws.accept();
for(;;)
{
// This buffer will hold the incoming message
boost::beast::multi_buffer buffer;
beast::flat_buffer buffer;
// Read a message
ws.read(buffer);
@@ -52,7 +64,7 @@ do_session(tcp::socket& socket)
ws.write(buffer.data());
}
}
catch(boost::system::system_error const& se)
catch(beast::system_error const& se)
{
// This indicates that the session was closed
if(se.code() != websocket::error::closed)
@@ -79,11 +91,11 @@ int main(int argc, char* argv[])
" websocket-server-sync 0.0.0.0 8080\n";
return EXIT_FAILURE;
}
auto const address = boost::asio::ip::make_address(argv[1]);
auto const address = net::ip::make_address(argv[1]);
auto const port = static_cast<unsigned short>(std::atoi(argv[2]));
// The io_context is required for all I/O
boost::asio::io_context ioc{1};
net::io_context ioc{1};
// The acceptor receives incoming connections
tcp::acceptor acceptor{ioc, {address, port}};
@@ -96,9 +108,9 @@ int main(int argc, char* argv[])
acceptor.accept(socket);
// Launch the session, transferring ownership of the socket
std::thread{std::bind(
std::thread(
&do_session,
std::move(socket))}.detach();
std::move(socket)).detach();
}
}
catch (const std::exception& e)