src/HTTPServer.cpp
author František Kučera <franta-hg@frantovo.cz>
Thu, 07 Apr 2022 21:06:37 +0200
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HTTP server demo
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/**
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 * Relational pipes
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 * Copyright © 2022 František Kučera (Frantovo.cz, GlobalCode.info)
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 *
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 * This program is free software: you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation, version 3 of the License.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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 */
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#include <microhttpd.h>
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#include <stdexcept>
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#include "HTTPServer.h"
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namespace relpipe {
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namespace tr {
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namespace httpd {
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class HTTPServer::HTTPServerImpl {
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public:
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	MHD_Daemon* mhd = nullptr;
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};
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HTTPServer* HTTPServer::create() {
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	HTTPServer::HTTPServerImpl* impl = new HTTPServer::HTTPServerImpl();
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	void* acceptCallbackData = nullptr;
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	MHD_AcceptPolicyCallback acceptCallback = [](void* cls, const struct sockaddr* addr, socklen_t addrlen) {
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		return MHD_YES;
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	};
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	void* accessCallbackData = nullptr;
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	MHD_AccessHandlerCallback accessCallback = [](void* cls, struct MHD_Connection* connection, const char* url, const char* method, const char* version, const char* upload_data, size_t* upload_data_size, void** con_cls) {
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		static const char html[] = "<p>Hello, <b>relational</b> world!</p>";
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		struct MHD_Response* response = MHD_create_response_from_buffer(sizeof (html), (void*) html, MHD_RESPMEM_PERSISTENT);
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		MHD_queue_response(connection, 200, response);
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		MHD_destroy_response(response);
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		return MHD_YES;
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	};
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	impl->mhd = MHD_start_daemon(MHD_USE_INTERNAL_POLLING_THREAD,
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			8080,
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			acceptCallback, acceptCallbackData,
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			accessCallback, accessCallbackData,
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			MHD_OPTION_THREAD_POOL_SIZE, 10,
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			MHD_OPTION_CONNECTION_TIMEOUT, 60,
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			MHD_OPTION_END);
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	if (impl->mhd) return new HTTPServer(impl);
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	else throw std::logic_error("Unable to start MHD.");
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}
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HTTPServer::~HTTPServer() {
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	MHD_stop_daemon(impl->mhd);
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	delete impl;
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}
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}
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}
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}