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/*
* Copyright (c) 2010-2013 Remko Tronçon
* Licensed under the GNU General Public License v3.
* See Documentation/Licenses/GPLv3.txt for more information.
*/
#include <Swiften/Avatars/VCardAvatarManager.h>
#include <boost/bind.hpp>
#include <Swiften/Elements/VCard.h>
#include <Swiften/Crypto/CryptoProvider.h>
#include <Swiften/StringCodecs/Hexify.h>
#include <Swiften/Avatars/AvatarStorage.h>
#include <Swiften/MUC/MUCRegistry.h>
#include <Swiften/VCards/VCardManager.h>
#include <Swiften/Base/Log.h>
namespace Swift {
VCardAvatarManager::VCardAvatarManager(VCardManager* vcardManager, AvatarStorage* avatarStorage, CryptoProvider* crypto, MUCRegistry* mucRegistry) : vcardManager_(vcardManager), avatarStorage_(avatarStorage), crypto_(crypto), mucRegistry_(mucRegistry) {
vcardManager_->onVCardChanged.connect(boost::bind(&VCardAvatarManager::handleVCardChanged, this, _1));
}
void VCardAvatarManager::handleVCardChanged(const JID& from) {
// We don't check whether the avatar actually changed. Direct use of this
// manager could cause unnecessary updates, but in practice, this will be
// caught by the wrapping CombinedAvatarManager anyway.
onAvatarChanged(from);
}
boost::optional<std::string> VCardAvatarManager::getAvatarHash(const JID& jid) const {
JID avatarJID = getAvatarJID(jid);
std::string hash = vcardManager_->getPhotoHash(avatarJID);
if (!hash.empty()) {
if (!avatarStorage_->hasAvatar(hash)) {
VCard::ref vCard = vcardManager_->getVCard(avatarJID);
if (vCard) {
std::string newHash = Hexify::hexify(crypto_->getSHA1Hash(vCard->getPhoto()));
if (newHash != hash) {
// Shouldn't happen, but sometimes seem to. Might be fixed if we
// move to a safer backend.
SWIFT_LOG(warning) << "Inconsistent vCard photo hash cache";
hash = newHash;
}
avatarStorage_->addAvatar(hash, vCard->getPhoto());
}
else {
// Can happen if the cache is inconsistent.
hash = "";
}
}
}
return hash;
}
JID VCardAvatarManager::getAvatarJID(const JID& jid) const {
JID bareFrom = jid.toBare();
return (mucRegistry_ && mucRegistry_->isMUC(bareFrom)) ? jid : bareFrom;
}
}
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Swift