/* * Copyright (c) 2010 Remko Tronçon * Licensed under the GNU General Public License v3. * See Documentation/Licenses/GPLv3.txt for more information. */ #include <Swiften/Queries/IQRouter.h> #include <boost/bind.hpp> #include <Swiften/Base/Algorithm.h> #include <Swiften/Base/foreach.h> #include <Swiften/Queries/IQHandler.h> #include <Swiften/Queries/IQChannel.h> #include <Swiften/Elements/ErrorPayload.h> namespace Swift { static void noop(IQHandler*) {} IQRouter::IQRouter(IQChannel* channel) : channel_(channel), queueRemoves_(false) { channel->onIQReceived.connect(boost::bind(&IQRouter::handleIQ, this, _1)); } IQRouter::~IQRouter() { channel_->onIQReceived.disconnect(boost::bind(&IQRouter::handleIQ, this, _1)); } bool IQRouter::isAvailable() { return channel_->isAvailable(); } void IQRouter::handleIQ(boost::shared_ptr<IQ> iq) { queueRemoves_ = true; bool handled = false; // Go through the handlers in reverse order, to give precedence to the last added handler std::vector<boost::shared_ptr<IQHandler> >::const_reverse_iterator i = handlers_.rbegin(); std::vector<boost::shared_ptr<IQHandler> >::const_reverse_iterator rend = handlers_.rend(); for (; i != rend; ++i) { handled |= (*i)->handleIQ(iq); if (handled) { break; } } if (!handled && (iq->getType() == IQ::Get || iq->getType() == IQ::Set) ) { sendIQ(IQ::createError(iq->getFrom(), iq->getID(), ErrorPayload::FeatureNotImplemented, ErrorPayload::Cancel)); } processPendingRemoves(); queueRemoves_ = false; } void IQRouter::processPendingRemoves() { foreach(boost::shared_ptr<IQHandler> handler, queuedRemoves_) { erase(handlers_, handler); } queuedRemoves_.clear(); } void IQRouter::addHandler(IQHandler* handler) { addHandler(boost::shared_ptr<IQHandler>(handler, noop)); } void IQRouter::removeHandler(IQHandler* handler) { removeHandler(boost::shared_ptr<IQHandler>(handler, noop)); } void IQRouter::addHandler(boost::shared_ptr<IQHandler> handler) { handlers_.push_back(handler); } void IQRouter::removeHandler(boost::shared_ptr<IQHandler> handler) { if (queueRemoves_) { queuedRemoves_.push_back(handler); } else { erase(handlers_, handler); } } void IQRouter::sendIQ(boost::shared_ptr<IQ> iq) { if (from_.isValid()) { iq->setFrom(from_); } channel_->sendIQ(iq); } std::string IQRouter::getNewIQID() { return channel_->getNewIQID(); } }