diff options
| -rw-r--r-- | Makefile | 7 | ||||
| -rw-r--r-- | TODO | 7 | ||||
| -rw-r--r-- | server_certificate.h | 124 | ||||
| -rw-r--r-- | webserver.cpp | 547 |
4 files changed, 683 insertions, 2 deletions
@@ -10,6 +10,7 @@ CXXFLAGS=-O0 -g -D_DEBUG CXXFLAGS+= -Wall -I. +CXXFLAGS+= -pthread ifeq ($(CXX),clang++-10) CXXFLAGS+=-std=c++20 -stdlib=libc++ else @@ -26,7 +27,8 @@ LIBS=\ -lboost_thread \ -lboost_filesystem \ -lboost_regex \ --lpthread +-lpthread \ +-lssl -lcrypto ifeq ($(CXX),clang++-10) LIBS+= \ @@ -60,6 +62,9 @@ all: test-$(PROJECTNAME) $(PROJECTNAME) test-$(PROJECTNAME): $(TESTSRC:.cpp=.o) $(CXX) $(CXXFLAGS) $^ $(LIBS) -o $@ +$(PROJECTNAME): $(SRC:.cpp=.o) + $(CXX) $(CXXFLAGS) $^ $(LIBS) -o $@ + dep: $(TESTSRC:.cpp=.d) %.d: %.cpp @@ -0,0 +1,7 @@ +Debian package +Plugin: https://www.boost.org/doc/libs/1_72_0/doc/html/boost_dll/tutorial.html#boost_dll.tutorial.symbol_shadowing_problem__linux_ +HTTP+HTTPS: https://www.boost.org/doc/libs/1_72_0/libs/beast/doc/html/beast/examples.html#beast.examples.servers +Config: https://www.boost.org/doc/libs/1_72_0/doc/html/property_tree/tutorial.html +Certbot: https://certbot.eff.org/lets-encrypt/debianbuster-other + + diff --git a/server_certificate.h b/server_certificate.h new file mode 100644 index 0000000..a20110e --- /dev/null +++ b/server_certificate.h @@ -0,0 +1,124 @@ +// +// 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/boostorg/beast +// + +#ifndef BOOST_BEAST_EXAMPLE_COMMON_SERVER_CERTIFICATE_HPP +#define BOOST_BEAST_EXAMPLE_COMMON_SERVER_CERTIFICATE_HPP + +#include <boost/asio/buffer.hpp> +#include <boost/asio/ssl/context.hpp> +#include <cstddef> +#include <memory> + +/* Load a signed certificate into the ssl context, and configure + the context for use with a server. + + For this to work with the browser or operating system, it is + necessary to import the "Beast Test CA" certificate into + the local certificate store, browser, or operating system + depending on your environment Please see the documentation + accompanying the Beast certificate for more details. +*/ +inline +void +load_server_certificate(boost::asio::ssl::context& ctx) +{ + /* + The certificate was generated from CMD.EXE on Windows 10 using: + + winpty openssl dhparam -out dh.pem 2048 + winpty openssl req -newkey rsa:2048 -nodes -keyout key.pem -x509 -days 10000 -out cert.pem -subj "//C=US\ST=CA\L=Los Angeles\O=Beast\CN=www.example.com" + */ + + std::string const cert = + "-----BEGIN CERTIFICATE-----\n" + "MIIDaDCCAlCgAwIBAgIJAO8vBu8i8exWMA0GCSqGSIb3DQEBCwUAMEkxCzAJBgNV\n" + "BAYTAlVTMQswCQYDVQQIDAJDQTEtMCsGA1UEBwwkTG9zIEFuZ2VsZXNPPUJlYXN0\n" + "Q049d3d3LmV4YW1wbGUuY29tMB4XDTE3MDUwMzE4MzkxMloXDTQ0MDkxODE4Mzkx\n" + "MlowSTELMAkGA1UEBhMCVVMxCzAJBgNVBAgMAkNBMS0wKwYDVQQHDCRMb3MgQW5n\n" + "ZWxlc089QmVhc3RDTj13d3cuZXhhbXBsZS5jb20wggEiMA0GCSqGSIb3DQEBAQUA\n" + "A4IBDwAwggEKAoIBAQDJ7BRKFO8fqmsEXw8v9YOVXyrQVsVbjSSGEs4Vzs4cJgcF\n" + "xqGitbnLIrOgiJpRAPLy5MNcAXE1strVGfdEf7xMYSZ/4wOrxUyVw/Ltgsft8m7b\n" + "Fu8TsCzO6XrxpnVtWk506YZ7ToTa5UjHfBi2+pWTxbpN12UhiZNUcrRsqTFW+6fO\n" + "9d7xm5wlaZG8cMdg0cO1bhkz45JSl3wWKIES7t3EfKePZbNlQ5hPy7Pd5JTmdGBp\n" + "yY8anC8u4LPbmgW0/U31PH0rRVfGcBbZsAoQw5Tc5dnb6N2GEIbq3ehSfdDHGnrv\n" + "enu2tOK9Qx6GEzXh3sekZkxcgh+NlIxCNxu//Dk9AgMBAAGjUzBRMB0GA1UdDgQW\n" + "BBTZh0N9Ne1OD7GBGJYz4PNESHuXezAfBgNVHSMEGDAWgBTZh0N9Ne1OD7GBGJYz\n" + "4PNESHuXezAPBgNVHRMBAf8EBTADAQH/MA0GCSqGSIb3DQEBCwUAA4IBAQCmTJVT\n" + "LH5Cru1vXtzb3N9dyolcVH82xFVwPewArchgq+CEkajOU9bnzCqvhM4CryBb4cUs\n" + "gqXWp85hAh55uBOqXb2yyESEleMCJEiVTwm/m26FdONvEGptsiCmF5Gxi0YRtn8N\n" + "V+KhrQaAyLrLdPYI7TrwAOisq2I1cD0mt+xgwuv/654Rl3IhOMx+fKWKJ9qLAiaE\n" + "fQyshjlPP9mYVxWOxqctUdQ8UnsUKKGEUcVrA08i1OAnVKlPFjKBvk+r7jpsTPcr\n" + "9pWXTO9JrYMML7d+XRSZA1n3856OqZDX4403+9FnXCvfcLZLLKTBvwwFgEFGpzjK\n" + "UEVbkhd5qstF6qWK\n" + "-----END CERTIFICATE-----\n"; + + std::string const key = + "-----BEGIN PRIVATE KEY-----\n" + "MIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQDJ7BRKFO8fqmsE\n" + "Xw8v9YOVXyrQVsVbjSSGEs4Vzs4cJgcFxqGitbnLIrOgiJpRAPLy5MNcAXE1strV\n" + "GfdEf7xMYSZ/4wOrxUyVw/Ltgsft8m7bFu8TsCzO6XrxpnVtWk506YZ7ToTa5UjH\n" + "fBi2+pWTxbpN12UhiZNUcrRsqTFW+6fO9d7xm5wlaZG8cMdg0cO1bhkz45JSl3wW\n" + "KIES7t3EfKePZbNlQ5hPy7Pd5JTmdGBpyY8anC8u4LPbmgW0/U31PH0rRVfGcBbZ\n" + "sAoQw5Tc5dnb6N2GEIbq3ehSfdDHGnrvenu2tOK9Qx6GEzXh3sekZkxcgh+NlIxC\n" + "Nxu//Dk9AgMBAAECggEBAK1gV8uETg4SdfE67f9v/5uyK0DYQH1ro4C7hNiUycTB\n" + "oiYDd6YOA4m4MiQVJuuGtRR5+IR3eI1zFRMFSJs4UqYChNwqQGys7CVsKpplQOW+\n" + "1BCqkH2HN/Ix5662Dv3mHJemLCKUON77IJKoq0/xuZ04mc9csykox6grFWB3pjXY\n" + "OEn9U8pt5KNldWfpfAZ7xu9WfyvthGXlhfwKEetOuHfAQv7FF6s25UIEU6Hmnwp9\n" + "VmYp2twfMGdztz/gfFjKOGxf92RG+FMSkyAPq/vhyB7oQWxa+vdBn6BSdsfn27Qs\n" + "bTvXrGe4FYcbuw4WkAKTljZX7TUegkXiwFoSps0jegECgYEA7o5AcRTZVUmmSs8W\n" + "PUHn89UEuDAMFVk7grG1bg8exLQSpugCykcqXt1WNrqB7x6nB+dbVANWNhSmhgCg\n" + "VrV941vbx8ketqZ9YInSbGPWIU/tss3r8Yx2Ct3mQpvpGC6iGHzEc/NHJP8Efvh/\n" + "CcUWmLjLGJYYeP5oNu5cncC3fXUCgYEA2LANATm0A6sFVGe3sSLO9un1brA4zlZE\n" + "Hjd3KOZnMPt73B426qUOcw5B2wIS8GJsUES0P94pKg83oyzmoUV9vJpJLjHA4qmL\n" + "CDAd6CjAmE5ea4dFdZwDDS8F9FntJMdPQJA9vq+JaeS+k7ds3+7oiNe+RUIHR1Sz\n" + "VEAKh3Xw66kCgYB7KO/2Mchesu5qku2tZJhHF4QfP5cNcos511uO3bmJ3ln+16uR\n" + "GRqz7Vu0V6f7dvzPJM/O2QYqV5D9f9dHzN2YgvU9+QSlUeFK9PyxPv3vJt/WP1//\n" + "zf+nbpaRbwLxnCnNsKSQJFpnrE166/pSZfFbmZQpNlyeIuJU8czZGQTifQKBgHXe\n" + "/pQGEZhVNab+bHwdFTxXdDzr+1qyrodJYLaM7uFES9InVXQ6qSuJO+WosSi2QXlA\n" + "hlSfwwCwGnHXAPYFWSp5Owm34tbpp0mi8wHQ+UNgjhgsE2qwnTBUvgZ3zHpPORtD\n" + "23KZBkTmO40bIEyIJ1IZGdWO32q79nkEBTY+v/lRAoGBAI1rbouFYPBrTYQ9kcjt\n" + "1yfu4JF5MvO9JrHQ9tOwkqDmNCWx9xWXbgydsn/eFtuUMULWsG3lNjfst/Esb8ch\n" + "k5cZd6pdJZa4/vhEwrYYSuEjMCnRb0lUsm7TsHxQrUd6Fi/mUuFU/haC0o0chLq7\n" + "pVOUFq5mW8p0zbtfHbjkgxyF\n" + "-----END PRIVATE KEY-----\n"; + + std::string const dh = + "-----BEGIN DH PARAMETERS-----\n" + "MIIBCAKCAQEArzQc5mpm0Fs8yahDeySj31JZlwEphUdZ9StM2D8+Fo7TMduGtSi+\n" + "/HRWVwHcTFAgrxVdm+dl474mOUqqaz4MpzIb6+6OVfWHbQJmXPepZKyu4LgUPvY/\n" + "4q3/iDMjIS0fLOu/bLuObwU5ccZmDgfhmz1GanRlTQOiYRty3FiOATWZBRh6uv4u\n" + "tff4A9Bm3V9tLx9S6djq31w31Gl7OQhryodW28kc16t9TvO1BzcV3HjRPwpe701X\n" + "oEEZdnZWANkkpR/m/pfgdmGPU66S2sXMHgsliViQWpDCYeehrvFRHEdR9NV+XJfC\n" + "QMUk26jPTIVTLfXmmwU0u8vUkpR7LQKkwwIBAg==\n" + "-----END DH PARAMETERS-----\n"; + + ctx.set_password_callback( + [](std::size_t, + boost::asio::ssl::context_base::password_purpose) + { + return "test"; + }); + + ctx.set_options( + boost::asio::ssl::context::default_workarounds | + boost::asio::ssl::context::no_sslv2 | + boost::asio::ssl::context::single_dh_use); + + ctx.use_certificate_chain( + boost::asio::buffer(cert.data(), cert.size())); + + ctx.use_private_key( + boost::asio::buffer(key.data(), key.size()), + boost::asio::ssl::context::file_format::pem); + + ctx.use_tmp_dh( + boost::asio::buffer(dh.data(), dh.size())); +} + +#endif diff --git a/webserver.cpp b/webserver.cpp index 8927fe4..d2d1bee 100644 --- a/webserver.cpp +++ b/webserver.cpp @@ -1,4 +1,549 @@ +#include "server_certificate.h" + +#include <boost/beast/core.hpp> +#include <boost/beast/http.hpp> +#include <boost/beast/ssl.hpp> +#include <boost/beast/version.hpp> +#include <boost/asio/dispatch.hpp> +#include <boost/asio/strand.hpp> +#include <boost/config.hpp> +#include <algorithm> +#include <cstdlib> +#include <functional> +#include <iostream> +#include <memory> +#include <string> +#include <thread> +#include <vector> + +namespace beast = boost::beast; // from <boost/beast.hpp> +namespace http = beast::http; // from <boost/beast/http.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> + +// 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 == beast::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)); +} + +//------------------------------------------------------------------------------ + +// Report a failure +void +fail(beast::error_code ec, char const* what) +{ + // ssl::error::stream_truncated, also known as an SSL "short read", + // indicates the peer closed the connection without performing the + // required closing handshake (for example, Google does this to + // improve performance). Generally this can be a security issue, + // but if your communication protocol is self-terminated (as + // it is with both HTTP and WebSocket) then you may simply + // ignore the lack of close_notify. + // + // https://github.com/boostorg/beast/issues/38 + // + // https://security.stackexchange.com/questions/91435/how-to-handle-a-malicious-ssl-tls-shutdown + // + // When a short read would cut off the end of an HTTP message, + // Beast returns the error beast::http::error::partial_message. + // Therefore, if we see a short read here, it has occurred + // after the message has been completed, so it is safe to ignore it. + + if(ec == net::ssl::error::stream_truncated) + return; + + std::cerr << what << ": " << ec.message() << "\n"; +} + +// Handles an HTTP server connection +class session : public std::enable_shared_from_this<session> +{ + // This is the C++11 equivalent of a generic lambda. + // The function object is used to send an HTTP message. + struct send_lambda + { + session& self_; + + explicit + send_lambda(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 = std::make_shared< + http::message<isRequest, Body, Fields>>(std::move(msg)); + + // Store a type-erased version of the shared + // pointer in the class to keep it alive. + self_.res_ = sp; + + // Write the response + http::async_write( + self_.stream_, + *sp, + beast::bind_front_handler( + &session::on_write, + self_.shared_from_this(), + sp->need_eof())); + } + }; + + beast::ssl_stream<beast::tcp_stream> stream_; + beast::flat_buffer buffer_; + std::shared_ptr<std::string const> doc_root_; + http::request<http::string_body> req_; + std::shared_ptr<void> res_; + send_lambda lambda_; + +public: + // Take ownership of the socket + explicit + session( + tcp::socket&& socket, + ssl::context& ctx, + std::shared_ptr<std::string const> const& doc_root) + : stream_(std::move(socket), ctx) + , doc_root_(doc_root) + , lambda_(*this) + { + } + + // Start the asynchronous operation + 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( + stream_.get_executor(), + beast::bind_front_handler( + &session::on_run, + shared_from_this())); + } + + void + on_run() + { + // Set the timeout. + beast::get_lowest_layer(stream_).expires_after( + std::chrono::seconds(30)); + + // Perform the SSL handshake + stream_.async_handshake( + ssl::stream_base::server, + beast::bind_front_handler( + &session::on_handshake, + shared_from_this())); + } + + void + on_handshake(beast::error_code ec) + { + if(ec) + return fail(ec, "handshake"); + + do_read(); + } + + void + do_read() + { + // Make the request empty before reading, + // otherwise the operation behavior is undefined. + req_ = {}; + + // Set the timeout. + beast::get_lowest_layer(stream_).expires_after(std::chrono::seconds(30)); + + // Read a request + http::async_read(stream_, buffer_, req_, + beast::bind_front_handler( + &session::on_read, + shared_from_this())); + } + + void + on_read( + beast::error_code ec, + std::size_t bytes_transferred) + { + boost::ignore_unused(bytes_transferred); + + // This means they closed the connection + if(ec == http::error::end_of_stream) + return do_close(); + + if(ec) + return fail(ec, "read"); + + // Send the response + handle_request(*doc_root_, std::move(req_), lambda_); + } + + void + on_write( + bool close, + beast::error_code ec, + std::size_t bytes_transferred) + { + boost::ignore_unused(bytes_transferred); + + if(ec) + return fail(ec, "write"); + + if(close) + { + // This means we should close the connection, usually because + // the response indicated the "Connection: close" semantic. + return do_close(); + } + + // We're done with the response so delete it + res_ = nullptr; + + // Read another request + do_read(); + } + + void + do_close() + { + // Set the timeout. + beast::get_lowest_layer(stream_).expires_after(std::chrono::seconds(30)); + + // Perform the SSL shutdown + stream_.async_shutdown( + beast::bind_front_handler( + &session::on_shutdown, + shared_from_this())); + } + + void + on_shutdown(beast::error_code ec) + { + if(ec) + return fail(ec, "shutdown"); + + // At this point the connection is closed gracefully + } +}; + +//------------------------------------------------------------------------------ + +// 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_; + std::shared_ptr<std::string const> doc_root_; + +public: + listener( + net::io_context& ioc, + ssl::context& ctx, + tcp::endpoint endpoint, + std::shared_ptr<std::string const> const& doc_root) + : ioc_(ioc) + , ctx_(ctx) + , acceptor_(ioc) + , doc_root_(doc_root) + { + 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; + } + } + + // Start accepting incoming connections + void + run() + { + do_accept(); + } + +private: + void + do_accept() + { + // The new connection gets its own strand + acceptor_.async_accept( + net::make_strand(ioc_), + beast::bind_front_handler( + &listener::on_accept, + shared_from_this())); + } + + void + on_accept(beast::error_code ec, tcp::socket socket) + { + if(ec) + { + fail(ec, "accept"); + } + else + { + // Create the session and run it + std::make_shared<session>( + std::move(socket), + ctx_, + doc_root_)->run(); + } + + // Accept another connection + do_accept(); + } +}; + +//------------------------------------------------------------------------------ + int main(int argc, char* argv[]) { - return 0; + // Check command line arguments. + if (argc != 5) + { + std::cerr << + "Usage: http-server-async-ssl <address> <port> <doc_root> <threads>\n" << + "Example:\n" << + " http-server-async-ssl 0.0.0.0 8080 . 1\n"; + return EXIT_FAILURE; + } + auto const address = net::ip::make_address(argv[1]); + auto const port = static_cast<unsigned short>(std::atoi(argv[2])); + auto const doc_root = std::make_shared<std::string>(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{threads}; + + // The SSL context is required, and holds certificates + ssl::context ctx{ssl::context::tlsv12}; + + // This holds the self-signed certificate used by the server + load_server_certificate(ctx); + + // Create and launch a listening port + std::make_shared<listener>( + ioc, + ctx, + tcp::endpoint{address, port}, + doc_root)->run(); + + // 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(); + + return EXIT_SUCCESS; } |