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//
// HTTPFormServer.cpp
//
// This sample demonstrates the HTTPServer and HTMLForm classes.
//
// Copyright (c) 2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#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/HTMLForm.h"
#include "Poco/Net/PartHandler.h"
#include "Poco/Net/MessageHeader.h"
#include "Poco/Net/ServerSocket.h"
#include "Poco/CountingStream.h"
#include "Poco/NullStream.h"
#include "Poco/StreamCopier.h"
#include "Poco/Exception.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::Net::MessageHeader;
using Poco::Net::HTMLForm;
using Poco::Net::NameValueCollection;
using Poco::Util::ServerApplication;
using Poco::Util::Application;
using Poco::Util::Option;
using Poco::Util::OptionSet;
using Poco::Util::HelpFormatter;
using Poco::CountingInputStream;
using Poco::NullOutputStream;
using Poco::StreamCopier;
class MyPartHandler: public Poco::Net::PartHandler
{
public:
MyPartHandler():
_length(0)
{
}
void handlePart(const MessageHeader& header, std::istream& stream)
{
_type = header.get("Content-Type", "(unspecified)");
if (header.has("Content-Disposition"))
{
std::string disp;
NameValueCollection params;
MessageHeader::splitParameters(header["Content-Disposition"], disp, params);
_name = params.get("name", "(unnamed)");
_fileName = params.get("filename", "(unnamed)");
}
CountingInputStream istr(stream);
NullOutputStream ostr;
StreamCopier::copyStream(istr, ostr);
_length = istr.chars();
}
int length() const
{
return _length;
}
const std::string& name() const
{
return _name;
}
const std::string& fileName() const
{
return _fileName;
}
const std::string& contentType() const
{
return _type;
}
private:
int _length;
std::string _type;
std::string _name;
std::string _fileName;
};
class FormRequestHandler: public HTTPRequestHandler
/// Return a HTML document with the current date and time.
{
public:
FormRequestHandler()
{
}
void handleRequest(HTTPServerRequest& request, HTTPServerResponse& response)
{
Application& app = Application::instance();
app.logger().information("Request from " + request.clientAddress().toString());
MyPartHandler partHandler;
HTMLForm form(request, request.stream(), partHandler);
response.setChunkedTransferEncoding(true);
response.setContentType("text/html");
std::ostream& ostr = response.send();
ostr <<
"<html>\n"
"<head>\n"
"<title>POCO Form Server Sample</title>\n"
"</head>\n"
"<body>\n"
"<h1>POCO Form Server Sample</h1>\n"
"<h2>GET Form</h2>\n"
"<form method=\"GET\" action=\"/form\">\n"
"<input type=\"text\" name=\"text\" size=\"31\">\n"
"<input type=\"submit\" value=\"GET\">\n"
"</form>\n"
"<h2>POST Form</h2>\n"
"<form method=\"POST\" action=\"/form\">\n"
"<input type=\"text\" name=\"text\" size=\"31\">\n"
"<input type=\"submit\" value=\"POST\">\n"
"</form>\n"
"<h2>File Upload</h2>\n"
"<form method=\"POST\" action=\"/form\" enctype=\"multipart/form-data\">\n"
"<input type=\"file\" name=\"file\" size=\"31\"> \n"
"<input type=\"submit\" value=\"Upload\">\n"
"</form>\n";
ostr << "<h2>Request</h2><p>\n";
ostr << "Method: " << request.getMethod() << "<br>\n";
ostr << "URI: " << request.getURI() << "<br>\n";
NameValueCollection::ConstIterator it = request.begin();
NameValueCollection::ConstIterator end = request.end();
for (; it != end; ++it)
{
ostr << it->first << ": " << it->second << "<br>\n";
}
ostr << "</p>";
if (!form.empty())
{
ostr << "<h2>Form</h2><p>\n";
it = form.begin();
end = form.end();
for (; it != end; ++it)
{
ostr << it->first << ": " << it->second << "<br>\n";
}
ostr << "</p>";
}
if (!partHandler.name().empty())
{
ostr << "<h2>Upload</h2><p>\n";
ostr << "Name: " << partHandler.name() << "<br>\n";
ostr << "File Name: " << partHandler.fileName() << "<br>\n";
ostr << "Type: " << partHandler.contentType() << "<br>\n";
ostr << "Size: " << partHandler.length() << "<br>\n";
ostr << "</p>";
}
ostr << "</body>\n";
}
};
class FormRequestHandlerFactory: public HTTPRequestHandlerFactory
{
public:
FormRequestHandlerFactory()
{
}
HTTPRequestHandler* createRequestHandler(const HTTPServerRequest& request)
{
return new FormRequestHandler;
}
};
class HTTPFormServer: public Poco::Util::ServerApplication
/// The main application class.
///
/// This class handles command-line arguments and
/// configuration files.
/// Start the HTTPFormServer executable with the help
/// option (/help on Windows, --help on Unix) for
/// the available command line options.
///
/// To use the sample configuration file (HTTPFormServer.properties),
/// copy the file to the directory where the HTTPFormServer executable
/// resides. If you start the debug version of the HTTPFormServer
/// (HTTPFormServerd[.exe]), you must also create a copy of the configuration
/// file named HTTPFormServerd.properties. In the configuration file, you
/// can specify the port on which the server is listening (default
/// 9980) and the format of the date/Form string sent back to the client.
///
/// To test the FormServer you can use any web browser (http://localhost:9980/).
{
public:
HTTPFormServer(): _helpRequested(false)
{
}
~HTTPFormServer()
{
}
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 shows how to work with HTML forms.");
helpFormatter.format(std::cout);
}
int main(const std::vector<std::string>& args)
{
if (_helpRequested)
{
displayHelp();
}
else
{
unsigned short port = (unsigned short) config().getInt("HTTPFormServer.port", 9980);
// set-up a server socket
ServerSocket svs(port);
// set-up a HTTPServer instance
HTTPServer srv(new FormRequestHandlerFactory, svs, new HTTPServerParams);
// 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)
{
HTTPFormServer app;
return app.run(argc, argv);
}