forked from boostorg/beast
Refactor all examples:
fix #575, fix #604, fix #608, fix #634, fix #712 All examples are rewritten: * Using Best Practices * Mostly self-contained * New examples to complete the feature matrix * The server-framework example is removed
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@@ -0,0 +1,23 @@
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#
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# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
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#
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# Distributed under the Boost Software License, Version 1.0. (See accompanying
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# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#
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# Official repository: https://github.com/boostorg/beast
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#
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GroupSources(include/boost/beast beast)
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GroupSources(example/common common)
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GroupSources(example/websocket/server/coro-ssl "/")
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add_executable (websocket-server-coro-ssl
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${BOOST_BEAST_INCLUDES}
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${PROJECT_SOURCE_DIR}/example/common/server_certificate.hpp
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Jamfile
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websocket_server_coro_ssl.cpp
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)
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target_link_libraries (websocket-server-coro-ssl
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${OPENSSL_LIBRARIES}
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)
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@@ -0,0 +1,21 @@
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#
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# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
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#
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# Distributed under the Boost Software License, Version 1.0. (See accompanying
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# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#
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# Official repository: https://github.com/boostorg/beast
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#
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project
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: requirements
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<library>ssl
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<library>crypto
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;
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exe websocket-server-coro-ssl :
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websocket_server_coro_ssl.cpp
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:
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<variant>coverage:<build>no
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<variant>ubasan:<build>no
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;
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@@ -0,0 +1,181 @@
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//
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// Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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// Official repository: https://github.com/boostorg/beast
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//
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//------------------------------------------------------------------------------
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//
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// Example: WebSocket SSL server, coroutine
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//
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//------------------------------------------------------------------------------
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#include "example/common/server_certificate.hpp"
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#include <boost/beast/core.hpp>
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#include <boost/beast/websocket.hpp>
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#include <boost/beast/websocket/ssl.hpp>
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#include <boost/asio/ip/tcp.hpp>
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#include <boost/asio/spawn.hpp>
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#include <boost/asio/ssl/stream.hpp>
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#include <algorithm>
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#include <cstdlib>
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#include <functional>
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#include <iostream>
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#include <memory>
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#include <string>
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#include <thread>
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#include <vector>
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using tcp = boost::asio::ip::tcp; // from <boost/asio/ip/tcp.hpp>
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namespace ssl = boost::asio::ssl; // from <boost/asio/ssl.hpp>
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namespace websocket = boost::beast::websocket; // from <boost/beast/websocket.hpp>
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//------------------------------------------------------------------------------
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// Report a failure
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void
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fail(boost::system::error_code ec, char const* what)
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{
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std::cerr << what << ": " << ec.message() << "\n";
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}
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// Echoes back all received WebSocket messages
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void
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do_session(
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tcp::socket& socket,
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ssl::context& ctx,
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boost::asio::yield_context yield)
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{
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boost::system::error_code ec;
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// Construct the stream by moving in the socket
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websocket::stream<ssl::stream<tcp::socket&>> ws{socket, ctx};
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// Perform the SSL handshake
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ws.next_layer().async_handshake(ssl::stream_base::server, yield[ec]);
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if(ec)
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return fail(ec, "handshake");
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// Accept the websocket handshake
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ws.async_accept(yield[ec]);
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if(ec)
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return fail(ec, "accept");
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for(;;)
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{
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// This buffer will hold the incoming message
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boost::beast::multi_buffer buffer;
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// Read a message
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ws.async_read(buffer, yield[ec]);
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// This indicates that the session was closed
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if(ec == websocket::error::closed)
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break;
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if(ec)
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return fail(ec, "read");
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// Echo the message back
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ws.text(ws.got_text());
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ws.async_write(buffer.data(), yield[ec]);
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if(ec)
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return fail(ec, "write");
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}
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}
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//------------------------------------------------------------------------------
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// Accepts incoming connections and launches the sessions
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void
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do_listen(
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boost::asio::io_service& ios,
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ssl::context& ctx,
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tcp::endpoint endpoint,
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boost::asio::yield_context yield)
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{
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boost::system::error_code ec;
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// Open the acceptor
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tcp::acceptor acceptor(ios);
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acceptor.open(endpoint.protocol(), ec);
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if(ec)
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return fail(ec, "open");
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// Bind to the server address
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acceptor.bind(endpoint, ec);
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if(ec)
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return fail(ec, "bind");
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// Start listening for connections
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acceptor.listen(boost::asio::socket_base::max_connections, ec);
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if(ec)
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return fail(ec, "listen");
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for(;;)
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{
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tcp::socket socket(ios);
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acceptor.async_accept(socket, yield[ec]);
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if(ec)
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fail(ec, "accept");
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else
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boost::asio::spawn(
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acceptor.get_io_service(),
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std::bind(
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&do_session,
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std::move(socket),
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std::ref(ctx),
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std::placeholders::_1));
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}
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}
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int main(int argc, char* argv[])
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{
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// Check command line arguments.
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if (argc != 4)
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{
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std::cerr <<
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"Usage: websocket-server-coro-ssl <address> <port> <threads>\n" <<
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"Example:\n" <<
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" websocket-server-coro-ssl 0.0.0.0 8080 1\n";
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return EXIT_FAILURE;
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}
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auto const address = boost::asio::ip::address::from_string(argv[1]);
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auto const port = static_cast<unsigned short>(std::atoi(argv[2]));
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auto const threads = std::max<std::size_t>(1, std::atoi(argv[3]));
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// The io_service is required for all I/O
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boost::asio::io_service ios{threads};
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// The SSL context is required, and holds certificates
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ssl::context ctx{ssl::context::sslv23};
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// This holds the self-signed certificate used by the server
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load_server_certificate(ctx);
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// Spawn a listening port
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boost::asio::spawn(ios,
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std::bind(
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&do_listen,
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std::ref(ios),
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std::ref(ctx),
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tcp::endpoint{address, port},
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std::placeholders::_1));
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// Run the I/O service on the requested number of threads
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std::vector<std::thread> v;
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v.reserve(threads - 1);
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for(auto i = threads - 1; i > 0; --i)
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v.emplace_back(
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[&ios]
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{
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ios.run();
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});
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ios.run();
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return EXIT_SUCCESS;
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}
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