1 files changed, 80 insertions, 0 deletions
diff --git a/Swiften/Disco/CapsManager.cpp b/Swiften/Disco/CapsManager.cpp
new file mode 100644
index 0000000..185f8e6
--- /dev/null
+++ b/Swiften/Disco/CapsManager.cpp
@@ -0,0 +1,80 @@
+/*
+ * 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);
+}
+
+
+}