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/*
* Copyright (c) 2010 Remko Tronçon
* Licensed under the GNU General Public License v3.
* See Documentation/Licenses/GPLv3.txt for more information.
*/
#include "Swiften/Disco/CapsManager.h"
#include <boost/bind.hpp>
#include "Swiften/Client/StanzaChannel.h"
#include "Swiften/Disco/CapsStorage.h"
#include "Swiften/Disco/CapsInfoGenerator.h"
#include "Swiften/Elements/CapsInfo.h"
#include "Swiften/Queries/Requests/GetDiscoInfoRequest.h"
namespace Swift {
CapsManager::CapsManager(CapsStorage* capsStorage, StanzaChannel* stanzaChannel, IQRouter* iqRouter) : iqRouter(iqRouter), capsStorage(capsStorage) {
stanzaChannel->onPresenceReceived.connect(boost::bind(&CapsManager::handlePresenceReceived, this, _1));
stanzaChannel->onAvailableChanged.connect(boost::bind(&CapsManager::handleStanzaChannelAvailableChanged, this, _1));
}
void CapsManager::handlePresenceReceived(boost::shared_ptr<Presence> presence) {
boost::shared_ptr<CapsInfo> capsInfo = presence->getPayload<CapsInfo>();
if (!capsInfo || capsInfo->getHash() != "sha-1" || presence->getPayload<ErrorPayload>()) {
return;
}
String hash = capsInfo->getVersion();
if (capsStorage->getDiscoInfo(hash)) {
return;
}
if (failingCaps.find(std::make_pair(presence->getFrom(), hash)) != failingCaps.end()) {
return;
}
if (requestedDiscoInfos.find(hash) != requestedDiscoInfos.end()) {
fallbacks[hash].insert(std::make_pair(presence->getFrom(), capsInfo->getNode()));
return;
}
requestDiscoInfo(presence->getFrom(), capsInfo->getNode(), hash);
}
void CapsManager::handleStanzaChannelAvailableChanged(bool available) {
if (available) {
failingCaps.clear();
fallbacks.clear();
requestedDiscoInfos.clear();
}
}
void CapsManager::handleDiscoInfoReceived(const JID& from, const String& hash, DiscoInfo::ref discoInfo, const boost::optional<ErrorPayload>& error) {
requestedDiscoInfos.erase(hash);
if (error || CapsInfoGenerator("").generateCapsInfo(*discoInfo.get()).getVersion() != hash) {
failingCaps.insert(std::make_pair(from, hash));
std::map<String, std::set< std::pair<JID, String> > >::iterator i = fallbacks.find(hash);
if (i != fallbacks.end() && !i->second.empty()) {
std::pair<JID,String> fallbackAndNode = *i->second.begin();
i->second.erase(i->second.begin());
requestDiscoInfo(fallbackAndNode.first, fallbackAndNode.second, hash);
}
return;
}
fallbacks.erase(hash);
capsStorage->setDiscoInfo(hash, discoInfo);
onCapsAvailable(hash);
}
void CapsManager::requestDiscoInfo(const JID& jid, const String& node, const String& hash) {
boost::shared_ptr<GetDiscoInfoRequest> request(new GetDiscoInfoRequest(jid, node + "#" + hash, iqRouter));
request->onResponse.connect(boost::bind(&CapsManager::handleDiscoInfoReceived, this, jid, hash, _1, _2));
requestedDiscoInfos.insert(hash);
request->send();
}
DiscoInfo::ref CapsManager::getCaps(const String& hash) const {
return capsStorage->getDiscoInfo(hash);
}
}
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Swift