nghttp2/examples/asio-sv.cc

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/*
* nghttp2 - HTTP/2 C Library
*
* Copyright (c) 2014 Tatsuhiro Tsujikawa
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
// We wrote this code based on the original code which has the
// following license:
//
// main.cpp
// ~~~~~~~~
//
// Copyright (c) 2003-2013 Christopher M. Kohlhoff (chris at kohlhoff 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)
//
#include <iostream>
#include <string>
#include <nghttp2/asio_http2_server.h>
using namespace nghttp2::asio_http2;
using namespace nghttp2::asio_http2::server;
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int main(int argc, char *argv[]) {
try {
// Check command line arguments.
if (argc < 4) {
std::cerr
<< "Usage: asio-sv <address> <port> <threads> [<private-key-file> "
<< "<cert-file>]\n";
return 1;
}
boost::system::error_code ec;
std::string addr = argv[1];
std::string port = argv[2];
std::size_t num_threads = std::stoi(argv[3]);
http2 server;
server.num_threads(num_threads);
server.handle("/", [](const request &req, const response &res) {
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res.write_head(200, {{"foo", {"bar"}}});
res.end("hello, world\n");
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});
server.handle("/secret/", [](const request &req, const response &res) {
res.write_head(200);
res.end("under construction!\n");
});
server.handle("/push", [](const request &req, const response &res) {
boost::system::error_code ec;
auto push = res.push(ec, "GET", "/push/1");
if (!ec) {
push->write_head(200);
push->end("server push FTW!\n");
}
res.write_head(200);
res.end("you'll receive server push!\n");
});
server.handle("/delay", [](const request &req, const response &res) {
res.write_head(200);
auto timer = std::make_shared<boost::asio::deadline_timer>(
res.io_service(), boost::posix_time::seconds(3));
auto closed = std::make_shared<bool>();
res.on_close([timer, closed](uint32_t error_code) {
timer->cancel();
*closed = true;
});
timer->async_wait([&res, closed](const boost::system::error_code &ec) {
if (ec || *closed) {
return;
}
res.end("finally!\n");
});
});
server.handle("/trailer", [](const request &req, const response &res) {
// send trailer part.
res.write_head(200, {{"trailers", {"digest"}}});
std::string body = "nghttp2 FTW!\n";
auto left = std::make_shared<size_t>(body.size());
res.end([&res, body, left](uint8_t *dst, std::size_t len,
uint32_t *data_flags) {
auto n = std::min(len, *left);
std::copy_n(body.c_str() + (body.size() - *left), n, dst);
*left -= n;
if (*left == 0) {
*data_flags |=
NGHTTP2_DATA_FLAG_EOF | NGHTTP2_DATA_FLAG_NO_END_STREAM;
// RFC 3230 Instance Digests in HTTP. The digest value is
// SHA-256 message digest of body.
res.write_trailer(
{{"digest",
{"SHA-256=qqXqskW7F3ueBSvmZRCiSwl2ym4HRO0M/pvQCBlSDis="}}});
}
return n;
});
});
if (argc >= 6) {
boost::asio::ssl::context tls(boost::asio::ssl::context::sslv23);
tls.use_private_key_file(argv[4], boost::asio::ssl::context::pem);
tls.use_certificate_chain_file(argv[5]);
configure_tls_context_easy(ec, tls);
if (server.listen_and_serve(ec, tls, addr, port)) {
std::cerr << "error: " << ec.message() << std::endl;
}
} else {
if (server.listen_and_serve(ec, addr, port)) {
std::cerr << "error: " << ec.message() << std::endl;
}
}
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} catch (std::exception &e) {
std::cerr << "exception: " << e.what() << "\n";
}
return 0;
}