ADD_SUBDIRECTORY(template)

cmake_minimum_required(VERSION 2.6)

FILE(GLOB SRC *.c *.cpp)

ADD_EXECUTABLE(spectrum2_template_backend ${SRC})

target_link_libraries(spectrum2_template_backend transport pthread ${Boost_LIBRARIES} ${SWIFTEN_LIBRARY} ${LOG4CXX_LIBRARIES})

#INSTALL(TARGETS spectrum2_template_backend RUNTIME DESTINATION bin)

This is just template for creating new generic spectrum2 backends. It does not do anything!

// Transport includes

#include "transport/config.h"

#include "transport/networkplugin.h"

// Swiften

#include "Swiften/Swiften.h"

// for signal handler

#include "unistd.h"

#include "signal.h"

#include "sys/wait.h"

#include "sys/signal.h"

// Log4cxx

#include "log4cxx/logger.h"

#include "log4cxx/consoleappender.h"

#include "log4cxx/patternlayout.h"

#include "log4cxx/propertyconfigurator.h"

#include "log4cxx/helpers/properties.h"

#include "log4cxx/helpers/fileinputstream.h"

#include "log4cxx/helpers/transcoder.h"

// Boost

#include <boost/algorithm/string.hpp>

using namespace boost::filesystem;

using namespace boost::program_options;

using namespace Transport;

// log4cxx main logger

using namespace log4cxx;

static LoggerPtr logger = log4cxx::Logger::getLogger("Backend Template");

// eventloop

Swift::SimpleEventLoop *loop_;

// Plugin

class TemplatePlugin;

TemplatePlugin * np = NULL;

class TemplatePlugin : public NetworkPlugin {

	public:

		Swift::BoostNetworkFactories *m_factories;

		Swift::BoostIOServiceThread m_boostIOServiceThread;

		boost::shared_ptr<Swift::Connection> m_conn;

		TemplatePlugin(Config *config, Swift::SimpleEventLoop *loop, const std::string &host, int port) : NetworkPlugin() {

			this->config = config;

			m_factories = new Swift::BoostNetworkFactories(loop);

			m_conn = m_factories->getConnectionFactory()->createConnection();

			m_conn->onDataRead.connect(boost::bind(&TemplatePlugin::_handleDataRead, this, _1));

			m_conn->connect(Swift::HostAddressPort(Swift::HostAddress(host), port));

			LOG4CXX_INFO(logger, "Starting the plugin.");

		}

		// NetworkPlugin uses this method to send the data to networkplugin server

		void sendData(const std::string &string) {

			m_conn->write(Swift::createSafeByteArray(string));

		}

		// This method has to call handleDataRead with all received data from network plugin server

		void _handleDataRead(boost::shared_ptr<Swift::SafeByteArray> data) {

			std::string d(data->begin(), data->end());

			handleDataRead(d);

		}

		void handleLoginRequest(const std::string &user, const std::string &legacyName, const std::string &password) {

			handleConnected(user);

		}

		void handleLogoutRequest(const std::string &user, const std::string &legacyName) {

		}

		void handleMessageSendRequest(const std::string &user, const std::string &legacyName, const std::string &message, const std::string &xhtml = "") {

			LOG4CXX_INFO(logger, "Sending message from " << user << " to " << legacyName << ".");

		}

		void handleBuddyUpdatedRequest(const std::string &user, const std::string &buddyName, const std::string &alias, const std::vector<std::string> &groups) {

			LOG4CXX_INFO(logger, user << ": Added buddy " << buddyName << ".");

			handleBuddyChanged(user, buddyName, alias, groups, pbnetwork::STATUS_ONLINE);

		}

		void handleBuddyRemovedRequest(const std::string &user, const std::string &buddyName, const std::vector<std::string> &groups) {

		}

	private:

		Config *config;

};

static void spectrum_sigchld_handler(int sig)

{

	int status;

	pid_t pid;

	do {

		pid = waitpid(-1, &status, WNOHANG);

	} while (pid != 0 && pid != (pid_t)-1);

	if ((pid == (pid_t) - 1) && (errno != ECHILD)) {

		char errmsg[BUFSIZ];

		snprintf(errmsg, BUFSIZ, "Warning: waitpid() returned %d", pid);

		perror(errmsg);

	}

}

int main (int argc, char* argv[]) {

	std::string host;

	int port;

	if (signal(SIGCHLD, spectrum_sigchld_handler) == SIG_ERR) {

		std::cout << "SIGCHLD handler can't be set\n";

		return -1;

	}

	boost::program_options::options_description desc("Usage: spectrum [OPTIONS] <config_file.cfg>\nAllowed options");

	desc.add_options()

		("host,h", value<std::string>(&host), "host")

		("port,p", value<int>(&port), "port")

		;

	try

	{

		boost::program_options::variables_map vm;

		boost::program_options::store(boost::program_options::parse_command_line(argc, argv, desc), vm);

		boost::program_options::notify(vm);

	}

	catch (std::runtime_error& e)

	{

		std::cout << desc << "\n";

		exit(1);

	}

	catch (...)

	{

		std::cout << desc << "\n";

		exit(1);

	}

	if (argc < 5) {

		return 1;

	}

	Config config;

	if (!config.load(argv[5])) {

		std::cerr << "Can't open " << argv[1] << " configuration file.\n";

		return 1;

	}

	if (CONFIG_STRING(&config, "logging.backend_config").empty()) {

		LoggerPtr root = log4cxx::Logger::getRootLogger();

#ifndef _MSC_VER

		root->addAppender(new ConsoleAppender(new PatternLayout("%d %-5p %c: %m%n")));

#else

		root->addAppender(new ConsoleAppender(new PatternLayout(L"%d %-5p %c: %m%n")));

#endif

	}

	else {

		log4cxx::helpers::Properties p;

		log4cxx::helpers::FileInputStream *istream = new log4cxx::helpers::FileInputStream(CONFIG_STRING(&config, "logging.backend_config"));

		p.load(istream);

		LogString pid, jid;

		log4cxx::helpers::Transcoder::decode(boost::lexical_cast<std::string>(getpid()), pid);

		log4cxx::helpers::Transcoder::decode(CONFIG_STRING(&config, "service.jid"), jid);

#ifdef _MSC_VER

		p.setProperty(L"pid", pid);

		p.setProperty(L"jid", jid);

#else

		p.setProperty("pid", pid);

		p.setProperty("jid", jid);

#endif

		log4cxx::PropertyConfigurator::configure(p);

	}

	Swift::SimpleEventLoop eventLoop;

	loop_ = &eventLoop;

	np = new TemplatePlugin(&config, &eventLoop, host, port);

	loop_->run();

	return 0;

}