📄 httptimeserver.cpp
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//// HTTPTimeServer.cpp//// $Id: //poco/1.2/Net/samples/HTTPTimeServer/src/HTTPTimeServer.cpp#1 $//// This sample demonstrates the HTTPServer and related classes.//// Copyright (c) 2005-2006, Applied Informatics Software Engineering GmbH.// and Contributors.//// Permission is hereby granted, free of charge, to any person or organization// obtaining a copy of the software and accompanying documentation covered by// this license (the "Software") to use, reproduce, display, distribute,// execute, and transmit the Software, and to prepare derivative works of the// Software, and to permit third-parties to whom the Software is furnished to// do so, all subject to the following:// // The copyright notices in the Software and this entire statement, including// the above license grant, this restriction and the following disclaimer,// must be included in all copies of the Software, in whole or in part, and// all derivative works of the Software, unless such copies or derivative// works are solely in the form of machine-executable object code generated by// a source language processor.// // 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, TITLE AND NON-INFRINGEMENT. IN NO EVENT// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER// DEALINGS IN THE SOFTWARE.//#include "Poco/Net/HTTPServer.h"#include "Poco/Net/HTTPRequestHandler.h"#include "Poco/Net/HTTPRequestHandlerFactory.h"#include "Poco/Net/HTTPServerParams.h"#include "Poco/Net/HTTPServerRequest.h"#include "Poco/Net/HTTPServerResponse.h"#include "Poco/Net/HTTPServerParams.h"#include "Poco/Net/ServerSocket.h"#include "Poco/Timestamp.h"#include "Poco/DateTimeFormatter.h"#include "Poco/DateTimeFormat.h"#include "Poco/Exception.h"#include "Poco/ThreadPool.h"#include "Poco/Util/ServerApplication.h"#include "Poco/Util/Option.h"#include "Poco/Util/OptionSet.h"#include "Poco/Util/HelpFormatter.h"#include <iostream>using Poco::Net::ServerSocket;using Poco::Net::HTTPRequestHandler;using Poco::Net::HTTPRequestHandlerFactory;using Poco::Net::HTTPServer;using Poco::Net::HTTPServerRequest;using Poco::Net::HTTPServerResponse;using Poco::Net::HTTPServerParams;using Poco::Timestamp;using Poco::DateTimeFormatter;using Poco::DateTimeFormat;using Poco::ThreadPool;using Poco::Util::ServerApplication;using Poco::Util::Application;using Poco::Util::Option;using Poco::Util::OptionSet;using Poco::Util::HelpFormatter;class TimeRequestHandler: public HTTPRequestHandler /// Return a HTML document with the current date and time.{public: TimeRequestHandler(const std::string& format): _format(format) { } void handleRequest(HTTPServerRequest& request, HTTPServerResponse& response) { Application& app = Application::instance(); app.logger().information("Request from " + request.clientAddress().toString()); Timestamp now; std::string dt(DateTimeFormatter::format(now, _format)); response.setChunkedTransferEncoding(true); response.setContentType("text/html"); std::ostream& ostr = response.send(); ostr << "<html><head><title>HTTPTimeServer powered by C++ Portable Components</title>"; ostr << "<meta http-equiv=\"refresh\" content=\"1\"></head>"; ostr << "<body><p style=\"text-align: center; font-size: 48px;\">"; ostr << dt; ostr << "</p></body></html>"; } private: std::string _format;};class TimeRequestHandlerFactory: public HTTPRequestHandlerFactory{public: TimeRequestHandlerFactory(const std::string& format): _format(format) { } HTTPRequestHandler* createRequestHandler(const HTTPServerRequest& request) { if (request.getURI() == "/") return new TimeRequestHandler(_format); else return 0; } private: std::string _format;};class HTTPTimeServer: public Poco::Util::ServerApplication /// The main application class. /// /// This class handles command-line arguments and /// configuration files. /// Start the HTTPTimeServer executable with the help /// option (/help on Windows, --help on Unix) for /// the available command line options. /// /// To use the sample configuration file (HTTPTimeServer.properties), /// copy the file to the directory where the HTTPTimeServer executable /// resides. If you start the debug version of the HTTPTimeServer /// (HTTPTimeServerd[.exe]), you must also create a copy of the configuration /// file named HTTPTimeServerd.properties. In the configuration file, you /// can specify the port on which the server is listening (default /// 9980) and the format of the date/time string sent back to the client. /// /// To test the TimeServer you can use any web browser (http://localhost:9980/).{public: HTTPTimeServer(): _helpRequested(false) { } ~HTTPTimeServer() { }protected: void initialize(Application& self) { loadConfiguration(); // load default configuration files, if present ServerApplication::initialize(self); } void uninitialize() { ServerApplication::uninitialize(); } void defineOptions(OptionSet& options) { ServerApplication::defineOptions(options); options.addOption( Option("help", "h", "display help information on command line arguments") .required(false) .repeatable(false)); } void handleOption(const std::string& name, const std::string& value) { ServerApplication::handleOption(name, value); if (name == "help") _helpRequested = true; } void displayHelp() { HelpFormatter helpFormatter(options()); helpFormatter.setCommand(commandName()); helpFormatter.setUsage("OPTIONS"); helpFormatter.setHeader("A web server that serves the current date and time."); helpFormatter.format(std::cout); } int main(const std::vector<std::string>& args) { if (_helpRequested) { displayHelp(); } else { // get parameters from configuration file unsigned short port = (unsigned short) config().getInt("HTTPTimeServer.port", 9980); std::string format(config().getString("HTTPTimeServer.format", DateTimeFormat::SORTABLE_FORMAT)); int maxQueued = config().getInt("HTTPTimeServer.maxQueued", 100); int maxThreads = config().getInt("HTTPTimeServer.maxThreads", 16); ThreadPool::defaultPool().addCapacity(maxThreads); HTTPServerParams* pParams = new HTTPServerParams; pParams->setMaxQueued(maxQueued); pParams->setMaxThreads(maxThreads); // set-up a server socket ServerSocket svs(port); // set-up a HTTPServer instance HTTPServer srv(new TimeRequestHandlerFactory(format), svs, pParams); // start the HTTPServer srv.start(); // wait for CTRL-C or kill waitForTerminationRequest(); // Stop the HTTPServer srv.stop(); } return Application::EXIT_OK; } private: bool _helpRequested;};int main(int argc, char** argv){ HTTPTimeServer app; return app.run(argc, argv);}⌨️ 快捷键说明
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