/* * libretroshare/src/gxs: rsgxnetservice.cc * * Access to rs network and synchronisation service implementation * * Copyright 2012-2012 by Christopher Evi-Parker * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License Version 2 as published by the Free Software Foundation. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 * USA. * * Please report all bugs and problems to "retroshare@lunamutt.com". * */ // // RsNxsItem // | // +-- RsNxsSyncGrp send req for group list, with time stamp of what we have // +-- RsNxsSyncMsg // +-- RsNxsGroupPublishKeyItem // +-- RsNxsSyncGrpItem send individual grp info with time stamps, authors, etc. // // // tick() // | // +----------- sharePublishKeys() // | // +----------- syncWithPeers() // | | // | +--if AutoSync--- send global UpdateTS of each peer to itself => the peer knows the last // | | time current peer has received an updated from himself // | | type=RsNxsSyncGrp // | | role: advise to request grp list for mServType // | | // | +--Retrive all grp Id + meta // | // | For each peer // | For each grp to request // | send RsNxsSyncMsg(ServiceType, grpId, updateTS) // | | // | (Only send if rand() < sendingProb()) +---comes from mClientMsgUpdateMap // | // +----------- recvNxsItemQueue() // | // +------ handleRecvPublishKeys(auto*) // | // | // | // +------ handleRecvSyncGroup( RsNxsSyncGrp*) // | - parse all subscribed groups. For each, send a RsNxsSyncGrpItem with publish TS // | - pack into a single RsNxsTransac item // | | // | +---- canSendGrpId(peer, grpMeta, toVet) // determines if put in vetting list // | | | // or sent right away // | | +--CIRCLES_TYPE_LOCAL------- false // | | +--CIRCLES_TYPE_PUBLIC------ true // | | +--CIRCLES_TYPE_EXTERNAL---- mCircles->canSend(circleId, getPgpId(peerId)) // | | +--CIRCLES_TYPE_YOUR_EYES--- internal circle stuff // | | // | +---- store in mPendingCircleVet ou directement locked_pushGrpRespFromList() // | // +------ handleRecvSyncMessage( RsNxsSyncMsg*) // - parse msgs from group // - send all msg IDs for this group // data_tick() // | // +----------- updateServerSyncTS() // | - retrieve all group meta data // | - updates mServerMsgUpdateMap[grpId]=grp->mLastPostTS for all grps // | - updates mGrpServerUpdateItem to max of all received TS // | // +----------- processTransactions() // | // +----------- processCompletedTransactions() // | | // | +------ locked_processCompletedIncomingTrans() // | | | // | | +-------- locked_genReqMsgTransaction() // request messages based on list // | | | // | | +-------- locked_genReqGrpTransaction() // request groups based on list // | | | // | | +-------- locked_genSendMsgsTransaction() // send msg list // | | | // | | +-------- locked_genSendGrpsTransaction() // send group list // | | // | +------ locked_processCompletedOutgoingTrans() // | // +----------- processExplicitGroupRequests() // | - parse mExplicitRequest and for each element (containing a grpId list), // | send the group ID (?!?!) // | // +----------- runVetting() // | // +--------- sort items from mPendingResp // | | // | +------ locked_createTransactionFromPending(GrpRespPending / MsgRespPending) // | | // takes accepted transaction and adds them to the list of active trans // | // +--------- sort items from mPendingCircleVetting // | // +------ locked_createTransactionFromPending(GrpCircleIdsRequestVetting / MsgCircleIdsRequestVetting) // // takes accepted transaction and adds them to the list of active trans // // Objects for time stamps // ======================= // // mClientGrpUpdateMap: map< RsPeerId, TimeStamp > Time stamp of last modification of group data for that peer (in peer's clock time!) // (Set at server side to be mGrpServerUpdateItem->grpUpdateTS) // // Only updated in processCompletedIncomingTransaction() from Grp list transaction. // Used in syncWithPeers() sending in RsNxsSyncGrp once to all peers: peer will send data if // has something new. All time comparisons are in the friends' clock time. // // mClientMsgUpdateMap: map< RsPeerId, map > // // Last msg list modification time sent by that peer Id // Updated in processCompletedIncomingTransaction() from Grp list trans. // Used in syncWithPeers() sending in RsNxsSyncGrp once to all peers. // Set at server to be mServerMsgUpdateMap[grpId]->msgUpdateTS // // mGrpServerUpdateItem: TimeStamp Last group local modification timestamp over all groups // // mServerMsgUpdateMap: map< GrpId, TimeStamp > Timestamp local modification for each group (i.e. time of most recent msg / metadata update) // // // Group update algorithm // ====================== // // CLient Server // ====== ====== // // tick() tick() // | | // +---- SyncWithPeers +-- recvNxsItemQueue() // | | // +---------------- Send global UpdateTS of each peer to itself => the peer knows +---------> +------ handleRecvSyncGroup( RsNxsSyncGrp*) // | the last msg sent (stored in mClientGrpUpdateMap[peer_id]), | | - parse all subscribed groups. For each, send a RsNxsSyncGrpItem with publish TS // | type=RsNxsSyncGrp | | - pack into a single RsNxsTransac item // | role: advise to request grp list for mServType -------------------+ | // | +--> +------ handleRecvSyncMessage( RsNxsSyncMsg*) // +---------------- Retrieve all grp Id + meta | - parse msgs from group // | | - send all msg IDs for this group // +-- For each peer | // For each grp to request | // send RsNxsSyncMsg(ServiceType, grpId, updateTS) | // | | // (Only send if rand() < sendingProb()) +---comes from mClientMsgUpdateMap -----+ // // Suggestions // =========== // * handleRecvSyncGroup should use mit->second.mLastPost to limit the sending of already known data // X * apparently mServerMsgUpdateMap is initially empty -> by default clients will always want to receive the data. // => new peers will always send data for each group until they get an update for that group. // X * check that there is a timestamp for unsubscribed items, otherwise we always send TS=0 and we always get them!! (in 346) // // -> there is not. mClientMsgUpdateMap is updated when msgs are received. // -> 1842: leaves before asking for msg content. // // Proposed changes: // - for unsubsribed groups, mClientMsgUpdateMap[peerid][grpId]=now when the group list is received => wont be asked again // - when we subscribe, we reset the time stamp. // // Better change: // - each peer sends last // // * the last TS method is not perfect: do new peers always receive old messages? // // * there's double information between mServerMsgUpdateMap first element (groupId) and second->grpId // * processExplicitGroupRequests() seems to send the group list that it was asked for without further information. How is that useful??? // // * grps without messages will never be stamped because stamp happens in genReqMsgTransaction, after checking msgListL.empty() // Problem: without msg, we cannot know the grpId!! // // * mClientMsgUpdateMap[peerid][grpId] is only updated when new msgs are received. Up to date groups will keep asking for lists! #include #include #include #include #include "rsgxsnetservice.h" #include "gxssecurity.h" #include "retroshare/rsconfig.h" #include "retroshare/rsreputations.h" #include "retroshare/rsgxsflags.h" #include "retroshare/rsgxscircles.h" #include "pgp/pgpauxutils.h" #include "util/rsmemory.h" /*** * Use the following defines to debug: NXS_NET_DEBUG_0 shows group update high level information NXS_NET_DEBUG_1 shows group update low level info (including transaction details) NXS_NET_DEBUG_2 bandwidth information NXS_NET_DEBUG_3 publish key exchange NXS_NET_DEBUG_4 vetting NXS_NET_DEBUG_5 summary of transactions (useful to just know what comes in/out) NXS_NET_DEBUG_6 NXS_NET_DEBUG_7 encryption/decryption of transactions ***/ #define NXS_NET_DEBUG_0 1 //#define NXS_NET_DEBUG_1 1 //#define NXS_NET_DEBUG_2 1 //#define NXS_NET_DEBUG_3 1 #define NXS_NET_DEBUG_4 1 #define NXS_NET_DEBUG_5 1 //#define NXS_NET_DEBUG_6 1 #define NXS_NET_DEBUG_7 1 #define GIXS_CUT_OFF 0 //#define NXS_FRAG // The constant below have a direct influence on how fast forums/channels/posted/identity groups propagate and on the overloading of queues: // // Channels/forums will update at a rate of SYNC_PERIOD*MAX_REQLIST_SIZE/60 messages per minute. // A large TRANSAC_TIMEOUT helps large transactions to finish before anything happens (e.g. disconnexion) or when the server has low upload bandwidth, // but also uses more memory. // A small value for MAX_REQLIST_SIZE is likely to help messages to propagate in a chaotic network, but will also slow them down. // A small SYNC_PERIOD fasten message propagation, but is likely to overload the server side of transactions (e.g. overload outqueues). // #define SYNC_PERIOD 60 #define MAX_REQLIST_SIZE 20 // No more than 20 items per msg request list => creates smaller transactions that are less likely to be cancelled. #define TRANSAC_TIMEOUT 2000 // In seconds. Has been increased to avoid epidemic transaction cancelling due to overloaded outqueues. #define SECURITY_DELAY_TO_FORCE_CLIENT_REUPDATE 3600 // force re-update if there happens to be a large delay between our server side TS and the client side TS of friends #define REJECTED_MESSAGE_RETRY_DELAY 24*3600 // re-try rejected messages every 24hrs. Most of the time this is because the peer's reputation has changed. #define GROUP_STATS_UPDATE_DELAY 240 // update unsubscribed group statistics every 3 mins #define GROUP_STATS_UPDATE_NB_PEERS 2 // number of peers to which the group stats are asked #define MAX_ALLOWED_GXS_MESSAGE_SIZE 199000 // 200,000 bytes including signature and headers // Debug system to allow to print only for some IDs (group, Peer, etc) #if defined(NXS_NET_DEBUG_0) || defined(NXS_NET_DEBUG_1) || defined(NXS_NET_DEBUG_2) || defined(NXS_NET_DEBUG_3) \ || defined(NXS_NET_DEBUG_4) || defined(NXS_NET_DEBUG_5) || defined(NXS_NET_DEBUG_6) || defined(NXS_NET_DEBUG_7) static const RsPeerId peer_to_print = RsPeerId(std::string("")) ; static const RsGxsGroupId group_id_to_print = RsGxsGroupId(std::string("2cd04bbf91e29b1f1b87aa9aa4e358f3" )) ; // use this to allow to this group id only, or "" for all IDs static const uint32_t service_to_print = 0x215 ; // use this to allow to this service id only, or 0 for all services // warning. Numbers should be SERVICE IDS (see serialiser/rsserviceids.h. E.g. 0x0215 for forums) class nullstream: public std::ostream {}; #if defined(NXS_NET_DEBUG_0) || defined(NXS_NET_DEBUG_1) || defined(NXS_NET_DEBUG_2) || defined(NXS_NET_DEBUG_3) \ || defined(NXS_NET_DEBUG_4) || defined(NXS_NET_DEBUG_5) || defined(NXS_NET_DEBUG_6) || defined(NXS_NET_DEBUG_7) static std::string nice_time_stamp(time_t now,time_t TS) { if(TS == 0) return "Never" ; else { std::ostringstream s; s << now - TS << " secs ago" ; return s.str() ; } } #endif static std::ostream& gxsnetdebug(const RsPeerId& peer_id,const RsGxsGroupId& grp_id,uint32_t service_type) { static nullstream null ; if((peer_to_print.isNull() || peer_id.isNull() || peer_id == peer_to_print) && (group_id_to_print.isNull() || grp_id.isNull() || grp_id == group_id_to_print) && (service_to_print==0 || service_type == 0 || ((service_type >> 8)&0xffff) == service_to_print)) return std::cerr << time(NULL) << ": " ; else return null ; } #define GXSNETDEBUG___ gxsnetdebug(RsPeerId(),RsGxsGroupId(),mServiceInfo.mServiceType) #define GXSNETDEBUG_P_(peer_id ) gxsnetdebug(peer_id ,RsGxsGroupId(),mServiceInfo.mServiceType) #define GXSNETDEBUG__G( group_id) gxsnetdebug(RsPeerId(),group_id ,mServiceInfo.mServiceType) #define GXSNETDEBUG_PG(peer_id,group_id) gxsnetdebug(peer_id ,group_id ,mServiceInfo.mServiceType) #endif const uint32_t RsGxsNetService::FRAGMENT_SIZE = 150000; RsGxsNetService::RsGxsNetService(uint16_t servType, RsGeneralDataService *gds, RsNxsNetMgr *netMgr, RsNxsObserver *nxsObs, const RsServiceInfo serviceInfo, RsGixsReputation* reputations, RsGcxs* circles, RsGixs *gixs, PgpAuxUtils *pgpUtils, bool grpAutoSync,bool msgAutoSync) : p3ThreadedService(), p3Config(), mTransactionN(0), mObserver(nxsObs),mGixs(gixs), mDataStore(gds), mServType(servType), mTransactionTimeOut(TRANSAC_TIMEOUT), mNetMgr(netMgr), mNxsMutex("RsGxsNetService"), mSyncTs(0), mLastKeyPublishTs(0),mLastCleanRejectedMessages(0), mSYNC_PERIOD(SYNC_PERIOD), mCircles(circles), mReputations(reputations), mPgpUtils(pgpUtils), mGrpAutoSync(grpAutoSync),mAllowMsgSync(msgAutoSync), mGrpServerUpdateItem(NULL), mServiceInfo(serviceInfo) { addSerialType(new RsNxsSerialiser(mServType)); mOwnId = mNetMgr->getOwnId(); mUpdateCounter = 0; } RsGxsNetService::~RsGxsNetService() { RS_STACK_MUTEX(mNxsMutex) ; for(TransactionsPeerMap::iterator it = mTransactions.begin();it!=mTransactions.end();++it) { for(TransactionIdMap::iterator it2 = it->second.begin();it2!=it->second.end();++it2) delete it2->second ; it->second.clear() ; } mTransactions.clear() ; delete mGrpServerUpdateItem ; for(ClientGrpMap::iterator it = mClientGrpUpdateMap.begin();it!=mClientGrpUpdateMap.end();++it) delete it->second ; mClientGrpUpdateMap.clear() ; for(std::map::iterator it(mServerMsgUpdateMap.begin());it!=mServerMsgUpdateMap.end();) delete it->second ; mServerMsgUpdateMap.clear() ; } int RsGxsNetService::tick() { // always check for new items arriving // from peers if(receivedItems()) recvNxsItemQueue(); bool should_notify = false; { RS_STACK_MUTEX(mNxsMutex) ; should_notify = should_notify || !mNewGroupsToNotify.empty() ; should_notify = should_notify || !mNewMessagesToNotify.empty() ; } if(should_notify) processObserverNotifications() ; time_t now = time(NULL); time_t elapsed = mSYNC_PERIOD + mSyncTs; if((elapsed) < now) { syncWithPeers(); syncGrpStatistics(); mSyncTs = now; } if(now > 10 + mLastKeyPublishTs) { sharePublishKeysPending() ; mLastKeyPublishTs = now ; } if(now > 3600 + mLastCleanRejectedMessages) { mLastCleanRejectedMessages = now ; cleanRejectedMessages() ; } return 1; } void RsGxsNetService::processObserverNotifications() { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG___ << "Processing observer notification." << std::endl; #endif std::vector grps_copy ; std::vector msgs_copy ; { RS_STACK_MUTEX(mNxsMutex) ; grps_copy = mNewGroupsToNotify ; msgs_copy = mNewMessagesToNotify ; mNewGroupsToNotify.clear() ; mNewMessagesToNotify.clear() ; } mObserver->notifyNewGroups(grps_copy); mObserver->notifyNewMessages(msgs_copy); } void RsGxsNetService::rejectMessage(const RsGxsMessageId& msg_id) { RS_STACK_MUTEX(mNxsMutex) ; mRejectedMessages[msg_id] = time(NULL) ; } void RsGxsNetService::cleanRejectedMessages() { RS_STACK_MUTEX(mNxsMutex) ; time_t now = time(NULL) ; #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG___ << "Cleaning rejected messages." << std::endl; #endif for(std::map::iterator it(mRejectedMessages.begin());it!=mRejectedMessages.end();) if(it->second + REJECTED_MESSAGE_RETRY_DELAY < now) { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG___ << " message id " << it->first << " should be re-tried. removing from list..." << std::endl; #endif std::map::iterator tmp = it ; ++tmp ; mRejectedMessages.erase(it) ; it=tmp ; } else ++it ; } // This class collects outgoing items due to the broadcast of Nxs messages. It computes // a probability that can be used to temper the broadcast of items so as to match the // residual bandwidth (difference between max allowed bandwidth and current outgoing rate. class NxsBandwidthRecorder { public: static const int OUTQUEUE_CUTOFF_VALUE = 500 ; static const int BANDWIDTH_ESTIMATE_DELAY = 20 ; static void recordEvent(uint16_t service_type, RsItem *item) { RS_STACK_MUTEX(mtx) ; uint32_t bw = RsNxsSerialiser(service_type).size(item) ; // this is used to estimate bandwidth. timeval tv ; gettimeofday(&tv,NULL) ; // compute time(NULL) in msecs, for a more accurate bw estimate. uint64_t now = (uint64_t) tv.tv_sec * 1000 + tv.tv_usec/1000 ; total_record += bw ; ++total_events ; #ifdef NXS_NET_DEBUG_2 std::cerr << "bandwidthRecorder::recordEvent() Recording event time=" << now << ". bw=" << bw << std::endl; #endif // Every 20 seconds at min, compute a new estimate of the required bandwidth. if(now > last_event_record + BANDWIDTH_ESTIMATE_DELAY*1000) { // Compute the bandwidth using recorded times, in msecs float speed = total_record/1024.0f/(now - last_event_record)*1000.0f ; // Apply a small temporal convolution. estimated_required_bandwidth = 0.75*estimated_required_bandwidth + 0.25 * speed ; #ifdef NXS_NET_DEBUG_2 std::cerr << std::dec << " " << total_record << " Bytes (" << total_events << " items)" << " received in " << now - last_event_record << " seconds. Speed: " << speed << " KBytes/sec" << std::endl; std::cerr << " instantaneous speed = " << speed << " KB/s" << std::endl; std::cerr << " cumulated estimated = " << estimated_required_bandwidth << " KB/s" << std::endl; #endif last_event_record = now ; total_record = 0 ; total_events = 0 ; } } // Estimate the probability of sending an item so that the expected bandwidth matches the residual bandwidth static float computeCurrentSendingProbability() { int maxIn=50,maxOut=50; float currIn=0,currOut=0 ; rsConfig->GetMaxDataRates(maxIn,maxOut) ; rsConfig->GetCurrentDataRates(currIn,currOut) ; RsConfigDataRates rates ; rsConfig->getTotalBandwidthRates(rates) ; #ifdef NXS_NET_DEBUG_2 std::cerr << std::dec << std::endl; #endif float outqueue_factor = 1.0f/pow( std::max(0.02f,rates.mQueueOut / (float)OUTQUEUE_CUTOFF_VALUE),5.0f) ; float accepted_bandwidth = std::max( 0.0f, maxOut - currOut) ; float max_bandwidth_factor = std::min( accepted_bandwidth / estimated_required_bandwidth,1.0f ) ; // We account for two things here: // 1 - the required max bandwidth // 2 - the current network overload, measured from the size of the outqueues. // // Only the later can limit the traffic if the internet connexion speed is responsible for outqueue overloading. float sending_probability = std::min(outqueue_factor,max_bandwidth_factor) ; #ifdef NXS_NET_DEBUG_2 std::cerr << "bandwidthRecorder::computeCurrentSendingProbability()" << std::endl; std::cerr << " current required bandwidth : " << estimated_required_bandwidth << " KB/s" << std::endl; std::cerr << " max_bandwidth_factor : " << max_bandwidth_factor << std::endl; std::cerr << " outqueue size : " << rates.mQueueOut << ", factor=" << outqueue_factor << std::endl; std::cerr << " max out : " << maxOut << ", currOut=" << currOut << std::endl; std::cerr << " computed probability : " << sending_probability << std::endl; #endif return sending_probability ; } private: static RsMutex mtx; static uint64_t last_event_record ; static float estimated_required_bandwidth ; static uint32_t total_events ; static uint64_t total_record ; }; uint32_t NxsBandwidthRecorder::total_events =0 ; // total number of events. Not used. uint64_t NxsBandwidthRecorder::last_event_record = time(NULL) * 1000;// starting time of bw estimate period (in msec) uint64_t NxsBandwidthRecorder::total_record =0 ; // total bytes recorded in the current time frame float NxsBandwidthRecorder::estimated_required_bandwidth = 10.0f ;// Estimated BW for sending sync data. Set to 10KB/s, to avoid 0. RsMutex NxsBandwidthRecorder::mtx("Bandwidth recorder") ; // Protects the recorder since bw events are collected from multiple GXS Net services // temporary holds a map of pointers to class T, and destroys all pointers on delete. template class RsGxsMetaDataTemporaryMap: public std::map { public: virtual ~RsGxsMetaDataTemporaryMap() { clear() ; } virtual void clear() { for(typename RsGxsMetaDataTemporaryMap::iterator it = this->begin();it!=this->end();++it) if(it->second != NULL) delete it->second ; std::map::clear() ; } }; void RsGxsNetService::syncWithPeers() { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG___ << "RsGxsNetService::syncWithPeers() this=" << (void*)this << ". serviceInfo=" << mServiceInfo << std::endl; #endif static RsNxsSerialiser ser(mServType) ; // this is used to estimate bandwidth. RS_STACK_MUTEX(mNxsMutex) ; std::set peers; mNetMgr->getOnlineList(mServiceInfo.mServiceType, peers); if (peers.empty()) { // nothing to do return; } std::set::iterator sit = peers.begin(); // for now just grps for(; sit != peers.end(); ++sit) { const RsPeerId peerId = *sit; ClientGrpMap::const_iterator cit = mClientGrpUpdateMap.find(peerId); uint32_t updateTS = 0; if(cit != mClientGrpUpdateMap.end()) { const RsGxsGrpUpdateItem *gui = cit->second; updateTS = gui->grpUpdateTS; } RsNxsSyncGrpReqItem *grp = new RsNxsSyncGrpReqItem(mServType); grp->clear(); grp->PeerId(*sit); grp->updateTS = updateTS; //NxsBandwidthRecorder::recordEvent(mServType,grp) ; #ifdef NXS_NET_DEBUG_5 GXSNETDEBUG_P_(*sit) << "Service "<< std::hex << ((mServiceInfo.mServiceType >> 8)& 0xffff) << std::dec << " sending global group TS of peer id: " << *sit << " ts=" << nice_time_stamp(time(NULL),updateTS) << " (secs ago) to himself" << std::endl; #endif sendItem(grp); } if(!mAllowMsgSync) return ; #ifndef GXS_DISABLE_SYNC_MSGS typedef RsGxsMetaDataTemporaryMap GrpMetaMap; GrpMetaMap grpMeta; mDataStore->retrieveGxsGrpMetaData(grpMeta); GrpMetaMap toRequest; for(GrpMetaMap::iterator mit = grpMeta.begin(); mit != grpMeta.end(); ++mit) { RsGxsGrpMetaData* meta = mit->second; // This was commented out because we want to know how many messages are available for unsubscribed groups. if(meta->mSubscribeFlags & GXS_SERV::GROUP_SUBSCRIBE_SUBSCRIBED ) { toRequest.insert(std::make_pair(mit->first, meta)); mit->second = NULL ; // avoids destruction ;-) } } sit = peers.begin(); // Jan. 26, 2016. This has been disabled, since GXS has been fixed, groups will not re-ask for data. So even if outqueues are filled up by multiple // attempts of the same request, the transfer will eventually end up. The code for NxsBandwidthRecorder should be kept for a while, // just in case. // float sending_probability = NxsBandwidthRecorder::computeCurrentSendingProbability() ; #ifdef NXS_NET_DEBUG_2 std::cerr << " syncWithPeers(): Sending probability = " << sending_probability << std::endl; #endif // Synchronise group msg for groups which we're subscribed to // For each peer and each group, we send to the peer the time stamp of the most // recent modification the peer has sent. If the peer has more recent messages he will send them, because its latest // modifications will be more recent. This ensures that we always compare timestamps all taken in the same // computer (the peer's computer in this case) for(; sit != peers.end(); ++sit) { const RsPeerId& peerId = *sit; // now see if you have an updateTS so optimise whether you need // to get a new list of peer data RsGxsMsgUpdateItem* mui = NULL; ClientMsgMap::const_iterator cit = mClientMsgUpdateMap.find(peerId); if(cit != mClientMsgUpdateMap.end()) mui = cit->second; #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_(peerId) << " syncing messages with peer " << peerId << std::endl; #endif GrpMetaMap::const_iterator mmit = toRequest.begin(); for(; mmit != toRequest.end(); ++mmit) { const RsGxsGrpMetaData* meta = mmit->second; const RsGxsGroupId& grpId = mmit->first; if(!checkCanRecvMsgFromPeer(peerId, *meta)) continue; // On default, the info has never been received so the TS is 0, meaning the peer has sent that it had no information. uint32_t updateTS = 0; if(mui) { std::map::const_iterator cit2 = mui->msgUpdateInfos.find(grpId); if(cit2 != mui->msgUpdateInfos.end()) updateTS = cit2->second.time_stamp; } RsNxsSyncMsgReqItem* msg = new RsNxsSyncMsgReqItem(mServType); msg->clear(); msg->PeerId(peerId); msg->grpId = grpId; msg->updateTS = updateTS; //NxsBandwidthRecorder::recordEvent(mServType,msg) ; //if(RSRandom::random_f32() < sending_probability) //{ sendItem(msg); #ifdef NXS_NET_DEBUG_5 GXSNETDEBUG_PG(*sit,grpId) << "Service "<< std::hex << ((mServiceInfo.mServiceType >> 8)& 0xffff) << std::dec << " sending global message TS of peer id: " << *sit << " ts=" << nice_time_stamp(time(NULL),updateTS) << " (secs ago) for group " << grpId << " to himself" << std::endl; #endif //} //else //{ // delete msg ; //#ifdef NXS_NET_DEBUG_0 // GXSNETDEBUG_PG(*sit,grpId) << " cancel RsNxsSyncMsg req (last local update TS for group+peer) for grpId=" << grpId << " to peer " << *sit << ": not enough bandwidth." << std::endl; //#endif //} } } #endif } void RsGxsNetService::syncGrpStatistics() { RS_STACK_MUTEX(mNxsMutex) ; #ifdef NXS_NET_DEBUG_6 GXSNETDEBUG___<< "Sync-ing group statistics." << std::endl; #endif RsGxsMetaDataTemporaryMap grpMeta; mDataStore->retrieveGxsGrpMetaData(grpMeta); std::set online_peers; mNetMgr->getOnlineList(mServiceInfo.mServiceType, online_peers); // Go through group statistics and groups without information are re-requested to random peers selected // among the ones who provided the group info. time_t now = time(NULL) ; for(std::map::const_iterator it(grpMeta.begin());it!=grpMeta.end();++it) { RsGroupNetworkStatsRecord& rec(mGroupNetworkStats[it->first]) ; #ifdef NXS_NET_DEBUG_6 GXSNETDEBUG__G(it->first) << " group " << it->first ; #endif if(rec.update_TS + GROUP_STATS_UPDATE_DELAY < now && rec.suppliers.size() > 0) { #ifdef NXS_NET_DEBUG_6 GXSNETDEBUG__G(it->first) << " needs update. Randomly asking to some friends" << std::endl; #endif // randomly select GROUP_STATS_UPDATE_NB_PEERS friends among the suppliers of this group uint32_t n = RSRandom::random_u32() % rec.suppliers.size() ; std::set::const_iterator rit = rec.suppliers.begin(); for(uint32_t i=0;ifirst) << " asking friend " << peer_id << " for an update of stats for group " << it->first << std::endl; #endif RsNxsSyncGrpStatsItem *grs = new RsNxsSyncGrpStatsItem(mServType) ; grs->request_type = RsNxsSyncGrpStatsItem::GROUP_INFO_TYPE_REQUEST ; grs->grpId = it->first ; grs->PeerId(peer_id) ; sendItem(grs) ; } } } #ifdef NXS_NET_DEBUG_6 else GXSNETDEBUG__G(it->first) << " up to date." << std::endl; #endif } } void RsGxsNetService::handleRecvSyncGrpStatistics(RsNxsSyncGrpStatsItem *grs) { if(grs->request_type == RsNxsSyncGrpStatsItem::GROUP_INFO_TYPE_REQUEST) { #ifdef NXS_NET_DEBUG_6 GXSNETDEBUG_PG(grs->PeerId(),grs->grpId) << "Received Grp update stats Request for group " << grs->grpId << " from friend " << grs->PeerId() << std::endl; #endif RsGxsMetaDataTemporaryMap grpMetas; grpMetas[grs->grpId] = NULL; mDataStore->retrieveGxsGrpMetaData(grpMetas); RsGxsGrpMetaData* grpMeta = grpMetas[grs->grpId]; if(grpMeta == NULL) { #ifdef NXS_NET_DEBUG_6 GXSNETDEBUG_PG(grs->PeerId(),grs->grpId) << " Group is unknown. Not reponding." << std::endl; #endif return ; } // check if we're subscribed or not if(! (grpMeta->mSubscribeFlags & GXS_SERV::GROUP_SUBSCRIBE_SUBSCRIBED )) { #ifdef NXS_NET_DEBUG_6 GXSNETDEBUG_PG(grs->PeerId(),grs->grpId) << " Group is not subscribed. Not reponding." << std::endl; #endif return ; } // now count available messages GxsMsgReq reqIds; reqIds[grs->grpId] = std::vector(); GxsMsgMetaResult result; #ifdef NXS_NET_DEBUG_6 GXSNETDEBUG_PG(grs->PeerId(),grs->grpId) << " retrieving message information." << std::endl; #endif mDataStore->retrieveGxsMsgMetaData(reqIds, result); const std::vector& vec(result[grs->grpId]) ; if(vec.empty()) // that means we don't have any, or there isn't any, but since the default is always 0, no need to send. return ; RsNxsSyncGrpStatsItem *grs_resp = new RsNxsSyncGrpStatsItem(mServType) ; grs_resp->request_type = RsNxsSyncGrpStatsItem::GROUP_INFO_TYPE_RESPONSE ; grs_resp->number_of_posts = vec.size(); grs_resp->grpId = grs->grpId; grs_resp->PeerId(grs->PeerId()) ; grs_resp->last_post_TS = 0 ; for(uint32_t i=0;ilast_post_TS < vec[i]->mPublishTs) grs_resp->last_post_TS = vec[i]->mPublishTs; delete vec[i] ; } #ifdef NXS_NET_DEBUG_6 GXSNETDEBUG_PG(grs->PeerId(),grs->grpId) << " sending back statistics item with " << vec.size() << " elements." << std::endl; #endif sendItem(grs_resp) ; } else if(grs->request_type == RsNxsSyncGrpStatsItem::GROUP_INFO_TYPE_RESPONSE) { #ifdef NXS_NET_DEBUG_6 GXSNETDEBUG_PG(grs->PeerId(),grs->grpId) << "Received Grp update stats item from peer " << grs->PeerId() << " for group " << grs->grpId << ", reporting " << grs->number_of_posts << " posts." << std::endl; #endif RS_STACK_MUTEX(mNxsMutex) ; RsGroupNetworkStatsRecord& rec(mGroupNetworkStats[grs->grpId]) ; int32_t old_count = rec.max_visible_count ; int32_t old_suppliers_count = rec.suppliers.size() ; rec.suppliers.insert(grs->PeerId()) ; rec.max_visible_count = std::max(rec.max_visible_count,grs->number_of_posts) ; rec.update_TS = time(NULL) ; if (old_count != rec.max_visible_count || old_suppliers_count != rec.suppliers.size()) mObserver->notifyChangedGroupStats(grs->grpId); } else std::cerr << "(EE) RsGxsNetService::handleRecvSyncGrpStatistics(): unknown item type " << grs->request_type << " found. This is a bug." << std::endl; } void RsGxsNetService::subscribeStatusChanged(const RsGxsGroupId& grpId,bool subscribed) { RS_STACK_MUTEX(mNxsMutex) ; if(!subscribed) return ; // When we subscribe, we reset the time stamps, so that the entire group list // gets requested once again, for a proper update. #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG__G(grpId) << "Changing subscribe status for grp " << grpId << " to " << subscribed << ": reseting all server msg time stamps for this group, and server global TS." << std::endl; #endif std::map::iterator it = mServerMsgUpdateMap.find(grpId) ; if(mServerMsgUpdateMap.end() == it) { RsGxsServerMsgUpdateItem *item = new RsGxsServerMsgUpdateItem(mServType) ; item->grpId = grpId ; item->msgUpdateTS = 0 ; } else it->second->msgUpdateTS = 0 ; // reset! // We also update mGrpServerUpdateItem so as to trigger a new grp list exchange with friends (friends will send their known ClientTS which // will be lower than our own grpUpdateTS, triggering our sending of the new subscribed grp list. if(mGrpServerUpdateItem == NULL) mGrpServerUpdateItem = new RsGxsServerGrpUpdateItem(mServType); mGrpServerUpdateItem->grpUpdateTS = time(NULL) ; } bool RsGxsNetService::fragmentMsg(RsNxsMsg& msg, MsgFragments& msgFragments) const { // first determine how many fragments uint32_t msgSize = msg.msg.TlvSize(); uint32_t dataLeft = msgSize; uint8_t nFragments = ceil(float(msgSize)/FRAGMENT_SIZE); RsTemporaryMemory buffer(FRAGMENT_SIZE); int currPos = 0; for(uint8_t i=0; i < nFragments; ++i) { RsNxsMsg* msgFrag = new RsNxsMsg(mServType); msgFrag->grpId = msg.grpId; msgFrag->msgId = msg.msgId; msgFrag->meta = msg.meta; msgFrag->transactionNumber = msg.transactionNumber; msgFrag->pos = i; msgFrag->PeerId(msg.PeerId()); msgFrag->count = nFragments; uint32_t fragSize = std::min(dataLeft, FRAGMENT_SIZE); memcpy(buffer, ((char*)msg.msg.bin_data) + currPos, fragSize); msgFrag->msg.setBinData(buffer, fragSize); currPos += fragSize; dataLeft -= fragSize; msgFragments.push_back(msgFrag); } return true; } bool RsGxsNetService::fragmentGrp(RsNxsGrp& grp, GrpFragments& grpFragments) const { // first determine how many fragments uint32_t grpSize = grp.grp.TlvSize(); uint32_t dataLeft = grpSize; uint8_t nFragments = ceil(float(grpSize)/FRAGMENT_SIZE); char buffer[FRAGMENT_SIZE]; int currPos = 0; for(uint8_t i=0; i < nFragments; ++i) { RsNxsGrp* grpFrag = new RsNxsGrp(mServType); grpFrag->grpId = grp.grpId; grpFrag->meta = grp.meta; grpFrag->pos = i; grpFrag->count = nFragments; uint32_t fragSize = std::min(dataLeft, FRAGMENT_SIZE); memcpy(buffer, ((char*)grp.grp.bin_data) + currPos, fragSize); grpFrag->grp.setBinData(buffer, fragSize); currPos += fragSize; dataLeft -= fragSize; grpFragments.push_back(grpFrag); } return true; } RsNxsMsg* RsGxsNetService::deFragmentMsg(MsgFragments& msgFragments) const { if(msgFragments.empty()) return NULL; // if there is only one fragment with a count 1 or less then // the fragment is the msg if(msgFragments.size() == 1) { RsNxsMsg* m = msgFragments.front(); if(m->count > 1) // normally mcount should be exactly 1, but if not initialised (old versions) it's going to be 0 { // delete everything std::cerr << "(WW) Cannot deFragment message set. m->count=" << m->count << ", but msgFragments.size()=" << msgFragments.size() << ". Incomplete? Dropping all." << std::endl; for(uint32_t i=0;imsg.bin_len; RsTemporaryMemory data(datSize) ; if(!data) { for(uint32_t i=0;imsg.bin_data, msg->msg.bin_len); currPos += msg->msg.bin_len; } RsNxsMsg* msg = new RsNxsMsg(mServType); const RsNxsMsg& m = *(*(msgFragments.begin())); msg->msg.setBinData(data, datSize); msg->msgId = m.msgId; msg->grpId = m.grpId; msg->transactionNumber = m.transactionNumber; msg->meta = m.meta; // now clean! for(uint32_t i=0;igrp.bin_len; char* data = new char[datSize]; uint32_t currPos = 0; for(mit = grpFragments.begin(); mit != grpFragments.end(); ++mit) { RsNxsGrp* grp = *mit; memcpy(data + (currPos), grp->grp.bin_data, grp->grp.bin_len); currPos += grp->grp.bin_len; } RsNxsGrp* grp = new RsNxsGrp(mServType); const RsNxsGrp& g = *(*(grpFragments.begin())); grp->grp.setBinData(data, datSize); grp->grpId = g.grpId; grp->transactionNumber = g.transactionNumber; grp->meta = g.meta; delete[] data; return grp; } struct GrpFragCollate { RsGxsGroupId mGrpId; GrpFragCollate(const RsGxsGroupId& grpId) : mGrpId(grpId){ } bool operator()(RsNxsGrp* grp) { return grp->grpId == mGrpId;} }; void RsGxsNetService::locked_createTransactionFromPending( MsgRespPending* msgPend) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(msgPend->mPeerId) << "locked_createTransactionFromPending()" << std::endl; #endif MsgAuthorV::const_iterator cit = msgPend->mMsgAuthV.begin(); std::list reqList; uint32_t transN = locked_getTransactionId(); for(; cit != msgPend->mMsgAuthV.end(); ++cit) { const MsgAuthEntry& entry = *cit; if(entry.mPassedVetting) { RsNxsSyncMsgItem* msgItem = new RsNxsSyncMsgItem(mServType); msgItem->grpId = entry.mGrpId; msgItem->msgId = entry.mMsgId; msgItem->authorId = entry.mAuthorId; msgItem->flag = RsNxsSyncMsgItem::FLAG_REQUEST; msgItem->transactionNumber = transN; msgItem->PeerId(msgPend->mPeerId); reqList.push_back(msgItem); } #ifdef NXS_NET_DEBUG_1 else GXSNETDEBUG_PG(msgPend->mPeerId,entry.mGrpId) << " entry failed vetting: grpId=" << entry.mGrpId << ", msgId=" << entry.mMsgId << ", peerId=" << msgPend->mPeerId << std::endl; #endif } if(!reqList.empty()) locked_pushMsgTransactionFromList(reqList, msgPend->mPeerId, transN); #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(msgPend->mPeerId) << " added " << reqList.size() << " items to transaction." << std::endl; #endif } void RsGxsNetService::locked_createTransactionFromPending(GrpRespPending* grpPend) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(grpPend->mPeerId) << "locked_createTransactionFromPending() from peer " << grpPend->mPeerId << std::endl; #endif GrpAuthorV::const_iterator cit = grpPend->mGrpAuthV.begin(); std::list reqList; uint32_t transN = locked_getTransactionId(); for(; cit != grpPend->mGrpAuthV.end(); ++cit) { const GrpAuthEntry& entry = *cit; if(entry.mPassedVetting) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_PG(grpPend->mPeerId,entry.mGrpId) << " entry Group Id: " << entry.mGrpId << " PASSED" << std::endl; #endif RsNxsSyncGrpItem* msgItem = new RsNxsSyncGrpItem(mServType); msgItem->grpId = entry.mGrpId; msgItem->authorId = entry.mAuthorId; msgItem->flag = RsNxsSyncMsgItem::FLAG_REQUEST; msgItem->transactionNumber = transN; msgItem->PeerId(grpPend->mPeerId); reqList.push_back(msgItem); } #ifdef NXS_NET_DEBUG_1 else GXSNETDEBUG_PG(grpPend->mPeerId,entry.mGrpId) << " entry failed vetting: grpId=" << entry.mGrpId << ", peerId=" << grpPend->mPeerId << std::endl; #endif } if(!reqList.empty()) locked_pushGrpTransactionFromList(reqList, grpPend->mPeerId, transN); } void RsGxsNetService::locked_createTransactionFromPending(GrpCircleIdRequestVetting* grpPend) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(grpPend->mPeerId) << "locked_createTransactionFromPending(GrpCircleIdReq)" << std::endl; #endif std::vector::iterator cit = grpPend->mGrpCircleV.begin(); uint32_t transN = locked_getTransactionId(); std::list itemL; for(; cit != grpPend->mGrpCircleV.end(); ++cit) { const GrpIdCircleVet& entry = *cit; if(entry.mCleared) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_PG(grpPend->mPeerId,entry.mGroupId) << " Group Id: " << entry.mGroupId << " PASSED" << std::endl; #endif RsNxsSyncGrpItem* gItem = new RsNxsSyncGrpItem(mServType); gItem->flag = RsNxsSyncGrpItem::FLAG_RESPONSE; gItem->grpId = entry.mGroupId; gItem->publishTs = 0; gItem->PeerId(grpPend->mPeerId); gItem->transactionNumber = transN; gItem->authorId = entry.mAuthorId; // why it authorId not set here??? itemL.push_back(gItem); } #ifdef NXS_NET_DEBUG_1 else GXSNETDEBUG_PG(grpPend->mPeerId,entry.mGroupId) << " Group Id: " << entry.mGroupId << " FAILED" << std::endl; #endif } if(!itemL.empty()) locked_pushGrpRespFromList(itemL, grpPend->mPeerId, transN); } void RsGxsNetService::locked_createTransactionFromPending(MsgCircleIdsRequestVetting* msgPend) { std::vector::iterator vit = msgPend->mMsgs.begin(); std::list itemL; uint32_t transN = locked_getTransactionId(); RsGxsGroupId grp_id ; for(; vit != msgPend->mMsgs.end(); ++vit) { MsgIdCircleVet& mic = *vit; RsNxsSyncMsgItem* mItem = new RsNxsSyncMsgItem(mServType); mItem->flag = RsNxsSyncGrpItem::FLAG_RESPONSE; mItem->grpId = msgPend->mGrpId; mItem->msgId = mic.mMsgId; mItem->authorId = mic.mAuthorId; mItem->PeerId(msgPend->mPeerId); mItem->transactionNumber = transN; itemL.push_back(mItem); grp_id = msgPend->mGrpId ; } if(!itemL.empty()) locked_pushMsgRespFromList(itemL, msgPend->mPeerId,grp_id, transN); } /*bool RsGxsNetService::locked_canReceive(const RsGxsGrpMetaData * const grpMeta , const RsPeerId& peerId ) { double timeDelta = 0.2; if(grpMeta->mCircleType == GXS_CIRCLE_TYPE_EXTERNAL) { int i=0; mCircles->loadCircle(grpMeta->mCircleId); // check 5 times at most // spin for 1 second at most while(i < 5) { if(mCircles->isLoaded(grpMeta->mCircleId)) { const RsPgpId& pgpId = mPgpUtils->getPGPId(peerId); return mCircles->canSend(grpMeta->mCircleId, pgpId); }//if(mCircles->isLoaded(grpMeta->mCircleId)) usleep((int) (timeDelta * 1000 * 1000));// timeDelta sec i++; }//while(i < 5) } else {//if(grpMeta->mCircleType == GXS_CIRCLE_TYPE_EXTERNAL) return true; }//else (grpMeta->mCircleType == GXS_CIRCLE_TYPE_EXTERNAL) return false; }*/ void RsGxsNetService::collateGrpFragments(GrpFragments fragments, std::map& partFragments) const { // get all unique grpIds; GrpFragments::iterator vit = fragments.begin(); std::set grpIds; for(; vit != fragments.end(); ++vit) grpIds.insert( (*vit)->grpId ); std::set::iterator sit = grpIds.begin(); for(; sit != grpIds.end(); ++sit) { const RsGxsGroupId& grpId = *sit; GrpFragments::iterator bound = std::partition( fragments.begin(), fragments.end(), GrpFragCollate(grpId)); // something will always be found for a group id for(vit = fragments.begin(); vit != bound; ) { partFragments[grpId].push_back(*vit); vit = fragments.erase(vit); } GrpFragments& f = partFragments[grpId]; RsNxsGrp* grp = *(f.begin()); // if counts of fragments is incorrect remove // from coalescion if(grp->count != f.size()) { GrpFragments::iterator vit2 = f.begin(); for(; vit2 != f.end(); ++vit2) delete *vit2; partFragments.erase(grpId); } } fragments.clear(); } struct MsgFragCollate { RsGxsMessageId mMsgId; MsgFragCollate(const RsGxsMessageId& msgId) : mMsgId(msgId){ } bool operator()(RsNxsMsg* msg) { return msg->msgId == mMsgId;} }; void RsGxsNetService::collateMsgFragments(MsgFragments& fragments, std::map& partFragments) const { // get all unique message Ids; MsgFragments::iterator vit = fragments.begin(); std::set msgIds; for(; vit != fragments.end(); ++vit) msgIds.insert( (*vit)->msgId ); std::set::iterator sit = msgIds.begin(); for(; sit != msgIds.end(); ++sit) { const RsGxsMessageId& msgId = *sit; MsgFragments::iterator bound = std::partition( fragments.begin(), fragments.end(), MsgFragCollate(msgId)); // something will always be found for a group id for(vit = fragments.begin(); vit != bound; ++vit ) { partFragments[msgId].push_back(*vit); } fragments.erase(fragments.begin(), bound); MsgFragments& f = partFragments[msgId]; RsNxsMsg* msg = *(f.begin()); // if counts of fragments is incorrect remove // from coalescion if(msg->count != f.size()) { MsgFragments::iterator vit2 = f.begin(); for(; vit2 != f.end(); ++vit2) delete *vit2; partFragments.erase(msgId); } } fragments.clear(); } class StoreHere { public: StoreHere(RsGxsNetService::ClientGrpMap& cgm, RsGxsNetService::ClientMsgMap& cmm, RsGxsNetService::ServerMsgMap& smm, RsGxsServerGrpUpdateItem*& sgm) : mClientGrpMap(cgm), mClientMsgMap(cmm), mServerMsgMap(smm), mServerGrpUpdateItem(sgm) {} void operator() (RsItem* item) { RsGxsMsgUpdateItem* mui; RsGxsGrpUpdateItem* gui; RsGxsServerGrpUpdateItem* gsui; RsGxsServerMsgUpdateItem* msui; if((mui = dynamic_cast(item)) != NULL) mClientMsgMap.insert(std::make_pair(mui->peerId, mui)); else if((gui = dynamic_cast(item)) != NULL) mClientGrpMap.insert(std::make_pair(gui->peerId, gui)); else if((msui = dynamic_cast(item)) != NULL) mServerMsgMap.insert(std::make_pair(msui->grpId, msui)); else if((gsui = dynamic_cast(item)) != NULL) { if(mServerGrpUpdateItem == NULL) mServerGrpUpdateItem = gsui; else { std::cerr << "Error! More than one server group update item exists!" << std::endl; delete gsui; } } else { std::cerr << "Type not expected!" << std::endl; delete item ; } } private: RsGxsNetService::ClientGrpMap& mClientGrpMap; RsGxsNetService::ClientMsgMap& mClientMsgMap; RsGxsNetService::ServerMsgMap& mServerMsgMap; RsGxsServerGrpUpdateItem*& mServerGrpUpdateItem; }; bool RsGxsNetService::loadList(std::list &load) { RS_STACK_MUTEX(mNxsMutex) ; // The delete is done in StoreHere, if necessary std::for_each(load.begin(), load.end(), StoreHere(mClientGrpUpdateMap, mClientMsgUpdateMap, mServerMsgUpdateMap, mGrpServerUpdateItem)); // We reset group statistics here. This is the best place since we know at this point which are all unsubscribed groups. time_t now = time(NULL); for(std::map::iterator it(mGroupNetworkStats.begin());it!=mGroupNetworkStats.end();++it) { // At each reload, we reset the count of visible messages. It will be rapidely restored to its real value from friends. it->second.max_visible_count = 0; // std::max(it2->second.message_count,gnsr.max_visible_count) ; // the update time stamp is randomised so as not to ask all friends at once about group statistics. it->second.update_TS = now - GROUP_STATS_UPDATE_DELAY + (RSRandom::random_u32()%(GROUP_STATS_UPDATE_DELAY/10)) ; // Similarly, we remove all suppliers. // Actual suppliers will come back automatically. it->second.suppliers.clear() ; } return true; } #include template struct get_second : public std::unary_function { RsItem* operator()(const typename UpdateMap::value_type& value) const { return value.second; } }; bool RsGxsNetService::saveList(bool& cleanup, std::list& save) { RS_STACK_MUTEX(mNxsMutex) ; // hardcore templates std::transform(mClientGrpUpdateMap.begin(), mClientGrpUpdateMap.end(), std::back_inserter(save), get_second()); std::transform(mClientMsgUpdateMap.begin(), mClientMsgUpdateMap.end(), std::back_inserter(save), get_second()); std::transform(mServerMsgUpdateMap.begin(), mServerMsgUpdateMap.end(), std::back_inserter(save), get_second()); save.push_back(mGrpServerUpdateItem); cleanup = false; return true; } RsSerialiser *RsGxsNetService::setupSerialiser() { RsSerialiser *rss = new RsSerialiser; rss->addSerialType(new RsGxsUpdateSerialiser(mServType)); return rss; } void RsGxsNetService::recvNxsItemQueue() { RsItem *item ; while(NULL != (item=recvItem())) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(item->PeerId()) << "Received RsGxsNetService Item:" << (void*)item << " type=" << std::hex << item->PacketId() << std::dec << std::endl ; #endif // RsNxsItem needs dynamic_cast, since they have derived siblings. // RsNxsItem *ni = dynamic_cast(item) ; if(ni != NULL) { // a live transaction has a non zero value if(ni->transactionNumber != 0) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(item->PeerId()) << " recvNxsItemQueue() handlingTransaction, transN " << ni->transactionNumber << std::endl; #endif if(!handleTransaction(ni)) delete ni; continue; } switch(ni->PacketSubType()) { case RS_PKT_SUBTYPE_NXS_SYNC_GRP_STATS_ITEM: handleRecvSyncGrpStatistics (dynamic_cast(ni)) ; break ; case RS_PKT_SUBTYPE_NXS_SYNC_GRP_REQ_ITEM: handleRecvSyncGroup (dynamic_cast(ni)) ; break ; case RS_PKT_SUBTYPE_NXS_SYNC_MSG_REQ_ITEM: handleRecvSyncMessage (dynamic_cast(ni)) ; break ; case RS_PKT_SUBTYPE_NXS_GRP_PUBLISH_KEY_ITEM:handleRecvPublishKeys (dynamic_cast(ni)) ; break ; default: std::cerr << "Unhandled item subtype " << (uint32_t) ni->PacketSubType() << " in RsGxsNetService: " << std::endl; break; } delete item ; } else { std::cerr << "Not a RsNxsItem, deleting!" << std::endl; delete(item); } } } bool RsGxsNetService::handleTransaction(RsNxsItem* item) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(item->PeerId()) << "handleTransaction(RsNxsItem) number=" << item->transactionNumber << std::endl; #endif /*! * This attempts to handle a transaction * It first checks if this transaction id already exists * If it does then check this not a initiating transactions */ RS_STACK_MUTEX(mNxsMutex) ; const RsPeerId& peer = item->PeerId(); RsNxsTransacItem* transItem = dynamic_cast(item); // if this is a RsNxsTransac item process if(transItem) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(item->PeerId()) << " this is a RsNxsTransac item. callign process." << std::endl; #endif return locked_processTransac(transItem); } // then this must be transaction content to be consumed // first check peer exist for transaction bool peerTransExists = mTransactions.find(peer) != mTransactions.end(); // then check transaction exists NxsTransaction* tr = NULL; uint32_t transN = item->transactionNumber; if(peerTransExists) { TransactionIdMap& transMap = mTransactions[peer]; if(transMap.find(transN) != transMap.end()) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(item->PeerId()) << " Consuming Transaction content, transN: " << item->transactionNumber << std::endl; GXSNETDEBUG_P_(item->PeerId()) << " Consuming Transaction content, from Peer: " << item->PeerId() << std::endl; #endif tr = transMap[transN]; tr->mItems.push_back(item); return true; } } return false; } bool RsGxsNetService::locked_processTransac(RsNxsTransacItem *item) { /*! * To process the transaction item * It can either be initiating a transaction * or ending one that already exists * * For initiating an incoming transaction the peer * and transaction item need not exists * as the peer will be added and transaction number * added thereafter * * For commencing/starting an outgoing transaction * the transaction must exist already * * For ending a transaction the */ RsPeerId peer; // for outgoing transaction use own id if(item->transactFlag & (RsNxsTransacItem::FLAG_BEGIN_P2 | RsNxsTransacItem::FLAG_END_SUCCESS)) peer = mOwnId; else peer = item->PeerId(); uint32_t transN = item->transactionNumber; item->timestamp = time(NULL); // register time received NxsTransaction* tr = NULL; #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(peer) << "locked_processTransac() " << std::endl; GXSNETDEBUG_P_(peer) << " Received transaction item: " << transN << std::endl; GXSNETDEBUG_P_(peer) << " With peer: " << item->PeerId() << std::endl; GXSNETDEBUG_P_(peer) << " trans type: " << item->transactFlag << std::endl; #endif bool peerTrExists = mTransactions.find(peer) != mTransactions.end(); bool transExists = false; if(peerTrExists) { TransactionIdMap& transMap = mTransactions[peer]; // record whether transaction exists already transExists = transMap.find(transN) != transMap.end(); } // initiating an incoming transaction if(item->transactFlag & RsNxsTransacItem::FLAG_BEGIN_P1) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(peer) << " initiating Incoming transaction." << std::endl; #endif if(transExists) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(peer) << " transaction already exist! ERROR" << std::endl; #endif return false; // should not happen! } // create a transaction if the peer does not exist if(!peerTrExists) mTransactions[peer] = TransactionIdMap(); TransactionIdMap& transMap = mTransactions[peer]; // create new transaction tr = new NxsTransaction(); transMap[transN] = tr; tr->mTransaction = item; tr->mTimeOut = item->timestamp + mTransactionTimeOut; #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(peer) << " Setting timeout of " << mTransactionTimeOut << " secs, which is " << tr->mTimeOut - time(NULL) << " secs from now." << std::endl; #endif // note state as receiving, commencement item // is sent on next run() loop tr->mFlag = NxsTransaction::FLAG_STATE_STARTING; return true; // commencement item for outgoing transaction } else if(item->transactFlag & RsNxsTransacItem::FLAG_BEGIN_P2) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(peer) << " initiating outgoign transaction." << std::endl; #endif // transaction must exist if(!peerTrExists || !transExists) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(peer) << " transaction does not exist. Cancelling!" << std::endl; #endif return false; } // alter state so transaction content is sent on // next run() loop TransactionIdMap& transMap = mTransactions[mOwnId]; NxsTransaction* tr = transMap[transN]; tr->mFlag = NxsTransaction::FLAG_STATE_SENDING; delete item; return true; // end transac item for outgoing transaction } else if(item->transactFlag & RsNxsTransacItem::FLAG_END_SUCCESS) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(peer) << " marking this transaction succeed" << std::endl; #endif // transaction does not exist if(!peerTrExists || !transExists) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(peer) << " transaction does not exist. Cancelling!" << std::endl; #endif return false; } // alter state so that transaction is removed // on next run() loop TransactionIdMap& transMap = mTransactions[mOwnId]; NxsTransaction* tr = transMap[transN]; tr->mFlag = NxsTransaction::FLAG_STATE_COMPLETED; delete item; return true; } else return false; } void RsGxsNetService::data_tick() { static const double timeDelta = 0.5; //Start waiting as nothing to do in runup usleep((int) (timeDelta * 1000 * 1000)); // timeDelta sec if(mUpdateCounter >= 120) // 60 seconds { updateServerSyncTS(); #ifdef TO_REMOVE updateClientSyncTS(); #endif mUpdateCounter = 1; } else mUpdateCounter++; if(mUpdateCounter % 20 == 0) // dump the full shit every 20 secs debugDump() ; // process active transactions processTransactions(); // process completed transactions processCompletedTransactions(); // vetting of id and circle info runVetting(); processExplicitGroupRequests(); } void RsGxsNetService::debugDump() { #ifdef NXS_NET_DEBUG_0 RS_STACK_MUTEX(mNxsMutex) ; time_t now = time(NULL) ; GXSNETDEBUG___<< "RsGxsNetService::debugDump():" << std::endl; if(mGrpServerUpdateItem != NULL) GXSNETDEBUG___<< " mGrpServerUpdateItem time stamp: " << nice_time_stamp(time(NULL) , mGrpServerUpdateItem->grpUpdateTS) << " (is the last local modification time over all groups of this service)" << std::endl; else GXSNETDEBUG___<< " mGrpServerUpdateItem time stamp: not inited yet (is the last local modification time over all groups of this service)" << std::endl; GXSNETDEBUG___<< " mServerMsgUpdateMap: (is for each subscribed group, the last local modification time)" << std::endl; for(std::map::const_iterator it(mServerMsgUpdateMap.begin());it!=mServerMsgUpdateMap.end();++it) GXSNETDEBUG__G(it->first) << " Grp:" << it->first << " last local modification (secs ago): " << nice_time_stamp(time(NULL),it->second->msgUpdateTS) << std::endl; GXSNETDEBUG___<< " mClientGrpUpdateMap: (is for each friend, last modif time of group meta data at that friend, all groups included, sent by the friend himself)" << std::endl; for(std::map::const_iterator it(mClientGrpUpdateMap.begin());it!=mClientGrpUpdateMap.end();++it) GXSNETDEBUG_P_(it->first) << " From peer: " << it->first << " - last updated at peer (secs ago): " << nice_time_stamp(time(NULL),it->second->grpUpdateTS) << std::endl; GXSNETDEBUG___<< " mClientMsgUpdateMap: (is for each friend, the modif time for each group (e.g. last message received), sent by the friend himself)" << std::endl; for(std::map::const_iterator it(mClientMsgUpdateMap.begin());it!=mClientMsgUpdateMap.end();++it) { GXSNETDEBUG_P_(it->first) << " From peer: " << it->first << std::endl; for(std::map::const_iterator it2(it->second->msgUpdateInfos.begin());it2!=it->second->msgUpdateInfos.end();++it2) GXSNETDEBUG_PG(it->first,it2->first) << " group " << it2->first << " - last updated at peer (secs ago): " << nice_time_stamp(time(NULL),it2->second.time_stamp) << ". Message count=" << it2->second.message_count << std::endl; } GXSNETDEBUG___<< " List of rejected message ids: " << mRejectedMessages.size() << std::endl; #endif } #ifdef TO_REMOVE // This method is normally not needed, but we use it to correct possible inconsistencies in the updte time stamps // on the client side. void RsGxsNetService::updateClientSyncTS() { RS_STACK_MUTEX(mNxsMutex) ; #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG___<< "updateClientSyncTS(): checking last modification time stamps of local data w.r.t. client's modification times" << std::endl; #endif if(mGrpServerUpdateItem == NULL) mGrpServerUpdateItem = new RsGxsServerGrpUpdateItem(mServType); for(ClientGrpMap::iterator it = mClientGrpUpdateMap.begin();it!=mClientGrpUpdateMap.end();++it) if(it->second->grpUpdateTS > SECURITY_DELAY_TO_FORCE_CLIENT_REUPDATE + mGrpServerUpdateItem->grpUpdateTS) { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_(it->first) << " last global client GRP modification time known for peer (" << nice_time_stamp(time(NULL),it->second->grpUpdateTS) << " is quite more recent than our own server modification time (" << nice_time_stamp(time(NULL),mGrpServerUpdateItem->grpUpdateTS) << ". Forcing update! " << std::endl; #endif it->second->grpUpdateTS = 0 ; } for(ClientMsgMap::iterator it = mClientMsgUpdateMap.begin();it!=mClientMsgUpdateMap.end();++it) for(std::map::iterator it2 = it->second->msgUpdateInfos.begin();it2!=it->second->msgUpdateInfos.end();++it2) { std::map::const_iterator mmit = mServerMsgUpdateMap.find(it2->first) ; if(mmit != mServerMsgUpdateMap.end() && it2->second.time_stamp > SECURITY_DELAY_TO_FORCE_CLIENT_REUPDATE + mmit->second->msgUpdateTS) { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_PG(it->first,it2->first) << " last group msg modification time known for peer (" << nice_time_stamp(time(NULL),it2->second.time_stamp) << " and group " << it2->first << " is quite more recent than our own server modification time (" << nice_time_stamp(time(NULL),mmit->second->msgUpdateTS) << ". Forcing update! " << std::endl; #endif it2->second.time_stamp = 0 ; } } } #endif void RsGxsNetService::updateServerSyncTS() { RS_STACK_MUTEX(mNxsMutex) ; RsGxsMetaDataTemporaryMap gxsMap; #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG___<< "updateServerSyncTS(): updating last modification time stamp of local data." << std::endl; #endif // retrieve all grps and update TS mDataStore->retrieveGxsGrpMetaData(gxsMap); #ifdef TO_REMOVE // (cyril) This code is removed because it is inconsistent: the list of grps does not need to be updated when // new posts arrive. The two (grp list and msg list) are handled independently. // as a grp list server also note this is the latest item you have if(mGrpServerUpdateItem == NULL) mGrpServerUpdateItem = new RsGxsServerGrpUpdateItem(mServType); // First reset it. That's important because it will re-compute correct TS in case // we have unsubscribed a group. mGrpServerUpdateItem->grpUpdateTS = 0 ; #endif bool change = false; // then remove from mServerMsgUpdateMap, all items that are not in the group list! #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG___ << " cleaning server map of groups with no data:" << std::endl; #endif for(std::map::iterator it(mServerMsgUpdateMap.begin());it!=mServerMsgUpdateMap.end();) if(gxsMap.find(it->first) == gxsMap.end()) { // not found! Removing server update info for this group #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG__G(it->first) << " removing server update info for group " << it->first << std::endl; #endif std::map::iterator tmp(it) ; ++tmp ; mServerMsgUpdateMap.erase(it) ; it = tmp ; } else ++it; #ifdef NXS_NET_DEBUG_0 if(gxsMap.empty()) GXSNETDEBUG___<< " database seems to be empty. The modification timestamp will be reset." << std::endl; #endif // finally, update timestamps. for(std::map::const_iterator mit = gxsMap.begin();mit != gxsMap.end(); ++mit) { const RsGxsGroupId& grpId = mit->first; const RsGxsGrpMetaData* grpMeta = mit->second; ServerMsgMap::iterator mapIT = mServerMsgUpdateMap.find(grpId); RsGxsServerMsgUpdateItem* msui = NULL; #ifdef TO_REMOVE // That accounts for modification of the meta data. if(mGrpServerUpdateItem->grpUpdateTS < grpMeta->mPublishTs) { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG__G(grpId) << " publish time stamp of group " << grpId << " has changed to " << time(NULL)-grpMeta->mPublishTs << " secs ago. updating!" << std::endl; #endif mGrpServerUpdateItem->grpUpdateTS = grpMeta->mPublishTs; } #endif if(mapIT == mServerMsgUpdateMap.end()) { msui = new RsGxsServerMsgUpdateItem(mServType); msui->grpId = grpMeta->mGroupId; mServerMsgUpdateMap.insert(std::make_pair(msui->grpId, msui)); #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG__G(grpId) << " created new entry for group " << grpId << std::endl; #endif } else msui = mapIT->second; if(grpMeta->mLastPost > msui->msgUpdateTS ) { change = true; msui->msgUpdateTS = grpMeta->mLastPost; #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG__G(grpId) << " updated msgUpdateTS to last post = " << time(NULL) - grpMeta->mLastPost << " secs ago for group "<< grpId << std::endl; #endif } #ifdef TO_REMOVE // This might be very inefficient with time. This is needed because an old message might have been received, so the last modification time // needs to account for this so that a friend who hasn't if(mGrpServerUpdateItem->grpUpdateTS < grpMeta->mRecvTS) { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG__G(grpId) << " updated msgUpdateTS to last RecvTS = " << time(NULL) - grpMeta->mRecvTS << " secs ago for group "<< grpId << std::endl; #endif mGrpServerUpdateItem->grpUpdateTS = grpMeta->mRecvTS; change = true; } #endif } // actual change in config settings, then save configuration if(change) IndicateConfigChanged(); } bool RsGxsNetService::locked_checkTransacTimedOut(NxsTransaction* tr) { return tr->mTimeOut < ((uint32_t) time(NULL)); } void RsGxsNetService::processTransactions() { #ifdef NXS_NET_DEBUG_1 if(!mTransactions.empty()) GXSNETDEBUG___ << "processTransactions()" << std::endl; #endif RS_STACK_MUTEX(mNxsMutex) ; TransactionsPeerMap::iterator mit = mTransactions.begin(); for(; mit != mTransactions.end(); ++mit) { TransactionIdMap& transMap = mit->second; TransactionIdMap::iterator mmit = transMap.begin(), mmit_end = transMap.end(); if(mmit == mmit_end) // no waiting transactions for this peer continue ; #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(mit->first) << " peerId=" << mit->first << std::endl; #endif // transaction to be removed std::list toRemove; /*! * Transactions owned by peer */ if(mit->first == mOwnId) { for(; mmit != mmit_end; ++mmit) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(mit->first) << " type: outgoing " << std::endl; GXSNETDEBUG_P_(mit->first) << " transN = " << mmit->second->mTransaction->transactionNumber << std::endl; #endif NxsTransaction* tr = mmit->second; uint16_t flag = tr->mFlag; std::list::iterator lit, lit_end; uint32_t transN = tr->mTransaction->transactionNumber; // first check transaction has not expired if(locked_checkTransacTimedOut(tr)) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(mit->first) << " timeout! " << std::endl; GXSNETDEBUG_P_(mit->first) << std::dec ; int total_transaction_time = (int)time(NULL) - (tr->mTimeOut - mTransactionTimeOut) ; GXSNETDEBUG_P_(mit->first) << " Outgoing Transaction has failed, tranN: " << transN << ", Peer: " << mit->first ; GXSNETDEBUG_P_(mit->first) << ", age: " << total_transaction_time << ", nItems=" << tr->mTransaction->nItems << ". tr->mTimeOut = " << tr->mTimeOut << ", now = " << (uint32_t) time(NULL) << std::endl; #endif tr->mFlag = NxsTransaction::FLAG_STATE_FAILED; toRemove.push_back(transN); mComplTransactions.push_back(tr); continue; } #ifdef NXS_NET_DEBUG_1 else GXSNETDEBUG_P_(mit->first) << " still on time." << std::endl; #endif // send items requested if(flag & NxsTransaction::FLAG_STATE_SENDING) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(mit->first)<< " Sending Transaction content, transN: " << transN << " with peer: " << tr->mTransaction->PeerId() << std::endl; #endif lit = tr->mItems.begin(); lit_end = tr->mItems.end(); for(; lit != lit_end; ++lit){ sendItem(*lit); } tr->mItems.clear(); // clear so they don't get deleted in trans cleaning tr->mFlag = NxsTransaction::FLAG_STATE_WAITING_CONFIRM; } else if(flag & NxsTransaction::FLAG_STATE_WAITING_CONFIRM) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(mit->first)<< " Waiting confirm! returning." << std::endl; #endif continue; } else if(flag & NxsTransaction::FLAG_STATE_COMPLETED) { #ifdef NXS_NET_DEBUG_1 int total_transaction_time = (int)time(NULL) - (tr->mTimeOut - mTransactionTimeOut) ; GXSNETDEBUG_P_(mit->first)<< " Outgoing completed " << tr->mTransaction->nItems << " items transaction in " << total_transaction_time << " seconds." << std::endl; #endif // move to completed transactions toRemove.push_back(transN); mComplTransactions.push_back(tr); }else{ #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(mit->first)<< " Unknown flag for active transaction, transN: " << transN << ", Peer: " << mit->first<< std::endl; #endif toRemove.push_back(transN); tr->mFlag = NxsTransaction::FLAG_STATE_FAILED; mComplTransactions.push_back(tr); } } }else{ /*! * Essentially these are incoming transactions * Several states are dealth with * Receiving: waiting to receive items from peer's transaction * and checking if all have been received * Completed: remove transaction from active and tell peer * involved in transaction * Starting: this is a new transaction and need to teell peer * involved in transaction */ for(; mmit != mmit_end; ++mmit){ NxsTransaction* tr = mmit->second; uint16_t flag = tr->mFlag; uint32_t transN = tr->mTransaction->transactionNumber; #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(mit->first) << " type: incoming " << std::endl; GXSNETDEBUG_P_(mit->first) << " transN = " << mmit->second->mTransaction->transactionNumber << std::endl; #endif // first check transaction has not expired if(locked_checkTransacTimedOut(tr)) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(mit->first) << " timeout!" << std::endl; GXSNETDEBUG_P_(mit->first) << std::dec ; int total_transaction_time = (int)time(NULL) - (tr->mTimeOut - mTransactionTimeOut) ; GXSNETDEBUG_P_(mit->first) << " Incoming Transaction has failed, tranN: " << transN << ", Peer: " << mit->first ; GXSNETDEBUG_P_(mit->first) << ", age: " << total_transaction_time << ", nItems=" << tr->mTransaction->nItems << ". tr->mTimeOut = " << tr->mTimeOut << ", now = " << (uint32_t) time(NULL) << std::endl; #endif tr->mFlag = NxsTransaction::FLAG_STATE_FAILED; toRemove.push_back(transN); mComplTransactions.push_back(tr); continue; } if(flag & NxsTransaction::FLAG_STATE_RECEIVING) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(mit->first) << " received " << tr->mItems.size() << " item over a total of " << tr->mTransaction->nItems << std::endl; #endif // if the number it item received equal that indicated // then transaction is marked as completed // to be moved to complete transations // check if done if(tr->mItems.size() == tr->mTransaction->nItems) { tr->mFlag = NxsTransaction::FLAG_STATE_COMPLETED; #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(mit->first) << " completed!" << std::endl; #endif } }else if(flag & NxsTransaction::FLAG_STATE_COMPLETED) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(mit->first) << " transaction is completed!" << std::endl; GXSNETDEBUG_P_(mit->first) << " sending success!" << std::endl; #endif // send completion msg RsNxsTransacItem* trans = new RsNxsTransacItem(mServType); trans->clear(); trans->transactFlag = RsNxsTransacItem::FLAG_END_SUCCESS; trans->transactionNumber = transN; trans->PeerId(tr->mTransaction->PeerId()); sendItem(trans); // move to completed transactions mComplTransactions.push_back(tr); #ifdef NXS_NET_DEBUG_1 int total_transaction_time = (int)time(NULL) - (tr->mTimeOut - mTransactionTimeOut) ; GXSNETDEBUG_P_(mit->first) << " incoming completed " << tr->mTransaction->nItems << " items transaction in " << total_transaction_time << " seconds." << std::endl; #endif // transaction processing done // for this id, add to removal list toRemove.push_back(mmit->first); } else if(flag & NxsTransaction::FLAG_STATE_STARTING) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(mit->first) << " transaction is starting!" << std::endl; GXSNETDEBUG_P_(mit->first) << " setting state to Receiving" << std::endl; #endif // send item to tell peer your are ready to start RsNxsTransacItem* trans = new RsNxsTransacItem(mServType); trans->clear(); trans->transactFlag = RsNxsTransacItem::FLAG_BEGIN_P2 | (tr->mTransaction->transactFlag & RsNxsTransacItem::FLAG_TYPE_MASK); trans->transactionNumber = transN; trans->PeerId(tr->mTransaction->PeerId()); sendItem(trans); tr->mFlag = NxsTransaction::FLAG_STATE_RECEIVING; } else{ #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(mit->first) << " transaction is in unknown state. ERROR!" << std::endl; GXSNETDEBUG_P_(mit->first) << " transaction FAILS!" << std::endl; #endif std::cerr << " Unknown flag for active transaction, transN: " << transN << ", Peer: " << mit->first << std::endl; toRemove.push_back(mmit->first); mComplTransactions.push_back(tr); tr->mFlag = NxsTransaction::FLAG_STATE_FAILED; // flag as a failed transaction } } } std::list::iterator lit = toRemove.begin(); for(; lit != toRemove.end(); ++lit) { transMap.erase(*lit); } } } bool RsGxsNetService::getGroupNetworkStats(const RsGxsGroupId& gid,RsGroupNetworkStats& stats) { RS_STACK_MUTEX(mNxsMutex) ; std::map::const_iterator it = mGroupNetworkStats.find(gid) ; if(it == mGroupNetworkStats.end()) return false ; stats.mSuppliers = it->second.suppliers.size(); stats.mMaxVisibleCount = it->second.max_visible_count ; return true ; } void RsGxsNetService::processCompletedTransactions() { RS_STACK_MUTEX(mNxsMutex) ; /*! * Depending on transaction we may have to respond to peer * responsible for transaction */ while(mComplTransactions.size()>0) { NxsTransaction* tr = mComplTransactions.front(); bool outgoing = tr->mTransaction->PeerId() == mOwnId; if(outgoing){ locked_processCompletedOutgoingTrans(tr); }else{ locked_processCompletedIncomingTrans(tr); } delete tr; mComplTransactions.pop_front(); } } void RsGxsNetService::locked_processCompletedIncomingTrans(NxsTransaction* tr) { uint16_t flag = tr->mTransaction->transactFlag; #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_(tr->mTransaction->PeerId()) << "Processing complete Incoming transaction with " << tr->mTransaction->nItems << " items." << std::endl; GXSNETDEBUG_P_(tr->mTransaction->PeerId()) << " flags = " << flag << std::endl; GXSNETDEBUG_P_(tr->mTransaction->PeerId()) << " peerId= " << tr->mTransaction->PeerId() << std::endl; #endif if(tr->mFlag & NxsTransaction::FLAG_STATE_COMPLETED) { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_(tr->mTransaction->PeerId()) << " transaction has completed." << std::endl; #endif // for a completed list response transaction // one needs generate requests from this if(flag & RsNxsTransacItem::FLAG_TYPE_MSG_LIST_RESP) { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_(tr->mTransaction->PeerId()) << " type = msg list response." << std::endl; GXSNETDEBUG_P_(tr->mTransaction->PeerId()) << " => generate msg request based on it." << std::endl; #endif // generate request based on a peers response locked_genReqMsgTransaction(tr); }else if(flag & RsNxsTransacItem::FLAG_TYPE_GRP_LIST_RESP) { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_(tr->mTransaction->PeerId()) << " type = grp list response." << std::endl; GXSNETDEBUG_P_(tr->mTransaction->PeerId()) << " => generate group transaction request based on it." << std::endl; #endif locked_genReqGrpTransaction(tr); } // you've finished receiving request information now gen else if(flag & RsNxsTransacItem::FLAG_TYPE_MSG_LIST_REQ) { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_(tr->mTransaction->PeerId()) << " type = msg list request." << std::endl; GXSNETDEBUG_P_(tr->mTransaction->PeerId()) << " => generate msg list based on it." << std::endl; #endif locked_genSendMsgsTransaction(tr); } else if(flag & RsNxsTransacItem::FLAG_TYPE_GRP_LIST_REQ) { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_(tr->mTransaction->PeerId()) << " type = grp list request." << std::endl; GXSNETDEBUG_P_(tr->mTransaction->PeerId()) << " => generate grp list based on it." << std::endl; #endif locked_genSendGrpsTransaction(tr); } else if(flag & RsNxsTransacItem::FLAG_TYPE_GRPS) { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_(tr->mTransaction->PeerId()) << " type = groups." << std::endl; #endif std::vector grps; while(tr->mItems.size() != 0) { RsNxsGrp* grp = dynamic_cast(tr->mItems.front()); if(grp) { tr->mItems.pop_front(); grps.push_back(grp); #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_PG(tr->mTransaction->PeerId(),grp->grpId) << " adding new group " << grp->grpId << " to incoming list!" << std::endl; #endif } else std::cerr << " /!\\ item did not caste to grp" << std::endl; } #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_(tr->mTransaction->PeerId()) << " ...and notifying observer " << std::endl; #endif #ifdef NXS_NET_DEBUG_5 GXSNETDEBUG_P_ (tr->mTransaction->PeerId()) << "Service " << std::hex << ((mServiceInfo.mServiceType >> 8)& 0xffff) << std::dec << " - Received new groups meta data from peer " << tr->mTransaction->PeerId() << std::endl; for(uint32_t i=0;imTransaction->PeerId(),grps[i]->grpId) ; #endif // notify listener of grps for(uint32_t i=0;imTransaction->PeerId(); uint32_t updateTS = tr->mTransaction->updateTS; ClientGrpMap::iterator it = mClientGrpUpdateMap.find(peerFrom); RsGxsGrpUpdateItem* item = NULL; if(it != mClientGrpUpdateMap.end()) { item = it->second; }else { item = new RsGxsGrpUpdateItem(mServType); mClientGrpUpdateMap.insert(std::make_pair(peerFrom, item)); } #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_(tr->mTransaction->PeerId()) << " and updating mClientGrpUpdateMap for peer " << peerFrom << " of new time stamp " << nice_time_stamp(time(NULL),updateTS) << std::endl; #endif item->grpUpdateTS = updateTS; item->peerId = peerFrom; IndicateConfigChanged(); } else if(flag & RsNxsTransacItem::FLAG_TYPE_MSGS) { std::vector msgs; #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_(tr->mTransaction->PeerId()) << " type = msgs." << std::endl; #endif RsGxsGroupId grpId; while(tr->mItems.size() > 0) { RsNxsMsg* msg = dynamic_cast(tr->mItems.front()); if(msg) { if(grpId.isNull()) grpId = msg->grpId; tr->mItems.pop_front(); msgs.push_back(msg); #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_PG(tr->mTransaction->PeerId(),msg->grpId) << " pushing grpId="<< msg->grpId << ", msgsId=" << msg->msgId << " to list of incoming messages" << std::endl; #endif } else std::cerr << "RsGxsNetService::processCompletedTransactions(): item did not caste to msg" << std::endl; } #ifdef NXS_FRAG // (cyril) This code does not work. Since we do not really need message fragmenting, I won't fix it. std::map collatedMsgs; collateMsgFragments(msgs, collatedMsgs); // this destroys msgs whatsoever and recovers memory when needed msgs.clear(); std::map::iterator mit = collatedMsgs.begin(); for(; mit != collatedMsgs.end(); ++mit) { MsgFragments& f = mit->second; RsNxsMsg* msg = deFragmentMsg(f); if(msg) msgs.push_back(msg); } collatedMsgs.clear(); #endif #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_PG(tr->mTransaction->PeerId(),grpId) << " ...and notifying observer of " << msgs.size() << " new messages." << std::endl; #endif #ifdef NXS_NET_DEBUG_5 GXSNETDEBUG_PG (tr->mTransaction->PeerId(),grpId) << "Service " << std::hex << ((mServiceInfo.mServiceType >> 8)& 0xffff) << std::dec << " - Received new messages from peer " << tr->mTransaction->PeerId() << " for group " << grpId << std::endl; for(uint32_t i=0;imTransaction->PeerId(),grpId) << " " << msgs[i]->msgId << std::endl ; #endif // notify listener of msgs for(uint32_t i=0;imTransaction, grpId); } } else if(tr->mFlag == NxsTransaction::FLAG_STATE_FAILED) { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_(tr->mTransaction->PeerId()) << " transaction has failed. Wasting it." << std::endl; #endif // don't do anything transaction will simply be cleaned } return; } void RsGxsNetService::locked_doMsgUpdateWork(const RsNxsTransacItem *nxsTrans, const RsGxsGroupId &grpId) { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_PG(nxsTrans->PeerId(),grpId) << "updating MsgUpdate time stamps for peerId=" << nxsTrans->PeerId() << ", grpId=" << grpId << std::endl; #endif // firts check if peer exists const RsPeerId& peerFrom = nxsTrans->PeerId(); ClientMsgMap::iterator it = mClientMsgUpdateMap.find(peerFrom); RsGxsMsgUpdateItem* mui = NULL; // now update the peer's entry for this grp id if(it != mClientMsgUpdateMap.end()) { mui = it->second; } else { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_PG(nxsTrans->PeerId(),grpId) << " created new entry." << std::endl; #endif mui = new RsGxsMsgUpdateItem(mServType); mClientMsgUpdateMap.insert(std::make_pair(peerFrom, mui)); } mui->peerId = peerFrom; if(mPartialMsgUpdates[peerFrom].find(grpId) != mPartialMsgUpdates[peerFrom].end()) { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_PG(nxsTrans->PeerId(),grpId) << " this is a partial update. Not using new time stamp." << std::endl; #endif } else { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_PG(nxsTrans->PeerId(),grpId) << " this is a full update. Updating time stamp." << std::endl; #endif mui->msgUpdateInfos[grpId].time_stamp = nxsTrans->updateTS; IndicateConfigChanged(); } } void RsGxsNetService::locked_processCompletedOutgoingTrans(NxsTransaction* tr) { uint16_t flag = tr->mTransaction->transactFlag; #ifdef NXS_NET_DEBUG_0 RsNxsTransacItem *nxsTrans = tr->mTransaction; GXSNETDEBUG_P_(nxsTrans->PeerId()) << "locked_processCompletedOutgoingTrans(): tr->flags = " << flag << std::endl; #endif if(tr->mFlag & NxsTransaction::FLAG_STATE_COMPLETED) { // for a completed list response transaction // one needs generate requests from this if(flag & RsNxsTransacItem::FLAG_TYPE_MSG_LIST_RESP) { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_(nxsTrans->PeerId())<< " complete Sending Msg List Response, transN: " << tr->mTransaction->transactionNumber << std::endl; #endif }else if(flag & RsNxsTransacItem::FLAG_TYPE_GRP_LIST_RESP) { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_(nxsTrans->PeerId())<< " complete Sending Grp Response, transN: " << tr->mTransaction->transactionNumber << std::endl; #endif } // you've finished sending a request so don't do anything else if( (flag & RsNxsTransacItem::FLAG_TYPE_MSG_LIST_REQ) || (flag & RsNxsTransacItem::FLAG_TYPE_GRP_LIST_REQ) ) { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_(nxsTrans->PeerId())<< " complete Sending Msg/Grp Request, transN: " << tr->mTransaction->transactionNumber << std::endl; #endif }else if(flag & RsNxsTransacItem::FLAG_TYPE_GRPS) { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_(nxsTrans->PeerId())<< " complete Sending Grp Data, transN: " << tr->mTransaction->transactionNumber << std::endl; #endif }else if(flag & RsNxsTransacItem::FLAG_TYPE_MSGS) { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_(nxsTrans->PeerId())<< " complete Sending Msg Data, transN: " << tr->mTransaction->transactionNumber << std::endl; #endif } }else if(tr->mFlag == NxsTransaction::FLAG_STATE_FAILED){ #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_(nxsTrans->PeerId())<< " Failed transaction! transN: " << tr->mTransaction->transactionNumber << std::endl; #endif }else{ #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_(nxsTrans->PeerId())<< " Serious error unrecognised trans Flag! transN: " << tr->mTransaction->transactionNumber << std::endl; #endif } } void RsGxsNetService::locked_pushMsgTransactionFromList(std::list& reqList, const RsPeerId& peerId, const uint32_t& transN) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(peerId) << "locked_pushMsgTransactionFromList()" << std::endl; GXSNETDEBUG_P_(peerId) << " nelems = " << reqList.size() << std::endl; GXSNETDEBUG_P_(peerId) << " peerId = " << peerId << std::endl; GXSNETDEBUG_P_(peerId) << " transN = " << transN << std::endl; #endif #ifdef NXS_NET_DEBUG_5 GXSNETDEBUG_P_ (peerId) << "Service " << std::hex << ((mServiceInfo.mServiceType >> 8)& 0xffff) << std::dec << " - sending message request to peer " << peerId << " for " << reqList.size() << " messages" << std::endl; #endif RsNxsTransacItem* transac = new RsNxsTransacItem(mServType); transac->transactFlag = RsNxsTransacItem::FLAG_TYPE_MSG_LIST_REQ | RsNxsTransacItem::FLAG_BEGIN_P1; transac->timestamp = 0; transac->nItems = reqList.size(); transac->PeerId(peerId); transac->transactionNumber = transN; NxsTransaction* newTrans = new NxsTransaction(); newTrans->mItems = reqList; newTrans->mFlag = NxsTransaction::FLAG_STATE_WAITING_CONFIRM; newTrans->mTimeOut = time(NULL) + mTransactionTimeOut; // create transaction copy with your id to indicate // its an outgoing transaction newTrans->mTransaction = new RsNxsTransacItem(*transac); newTrans->mTransaction->PeerId(mOwnId); sendItem(transac); if (!locked_addTransaction(newTrans)) delete newTrans; #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(peerId) << " Requested new transaction for " << reqList.size() << " items." << std::endl; #endif } void RsGxsNetService::locked_genReqMsgTransaction(NxsTransaction* tr) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG___ << "RsGxsNetService::genReqMsgTransaction()" << std::endl; #endif // to create a transaction you need to know who you are transacting with // then what msgs to request // then add an active Transaction for request std::list msgItemL; std::list::iterator lit = tr->mItems.begin(); // first get item list sent from transaction for(; lit != tr->mItems.end(); ++lit) { RsNxsSyncMsgItem* item = dynamic_cast(*lit); if(item) { msgItemL.push_back(item); }else { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(item->PeerId()) << "RsGxsNetService::genReqMsgTransaction(): item failed cast to RsNxsSyncMsgItem* " << std::endl; #endif } } #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(tr->mTransaction->PeerId()) << " found " << msgItemL.size()<< " messages in this transaction." << std::endl; #endif if(msgItemL.empty()) return; // get grp id for this transaction RsNxsSyncMsgItem* item = msgItemL.front(); const RsGxsGroupId& grpId = item->grpId; // store the count for the peer who sent the message list uint32_t mcount = msgItemL.size() ; RsPeerId pid = msgItemL.front()->PeerId() ; RsGroupNetworkStatsRecord& gnsr = mGroupNetworkStats[grpId]; std::set::size_type oldSuppliersCount = gnsr.suppliers.size(); uint32_t oldVisibleCount = gnsr.max_visible_count; gnsr.suppliers.insert(pid) ; gnsr.max_visible_count = std::max(gnsr.max_visible_count, mcount) ; if (oldVisibleCount != gnsr.max_visible_count || oldSuppliersCount != gnsr.suppliers.size()) mObserver->notifyChangedGroupStats(grpId); #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_PG(item->PeerId(),grpId) << " grpId = " << grpId << std::endl; GXSNETDEBUG_PG(item->PeerId(),grpId) << " retrieving grp mesta data..." << std::endl; #endif RsGxsMetaDataTemporaryMap grpMetaMap; grpMetaMap[grpId] = NULL; mDataStore->retrieveGxsGrpMetaData(grpMetaMap); RsGxsGrpMetaData* grpMeta = grpMetaMap[grpId]; if(grpMeta == NULL) // this should not happen, but just in case... { std::cerr << "(EE) grpMeta is NULL in " << __PRETTY_FUNCTION__ << " line " << __LINE__ << ". This is very unexpected." << std::endl; return ; } if(! (grpMeta->mSubscribeFlags & GXS_SERV::GROUP_SUBSCRIBE_SUBSCRIBED )) { // For unsubscribed groups, we update the timestamp something more recent, so that the group content will not be asked to the same // peer again, unless the peer has new info about it. It's important to use the same clock (this is peer's clock) so that // we never compare times from different (and potentially badly sync-ed clocks) std::cerr << "(EE) stepping in part of the code (" << __PRETTY_FUNCTION__ << ") where we shouldn't. This is a bug." << std::endl; #ifdef TO_REMOVE locked_stampPeerGroupUpdateTime(pid,grpId,tr->mTransaction->updateTS,msgItemL.size()) ; #endif return ; } int cutoff = 0; if(grpMeta != NULL) cutoff = grpMeta->mReputationCutOff; GxsMsgReq reqIds; reqIds[grpId] = std::vector(); GxsMsgMetaResult result; mDataStore->retrieveGxsMsgMetaData(reqIds, result); std::vector &msgMetaV = result[grpId]; #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_PG(item->PeerId(),grpId) << " retrieving grp message list..." << std::endl; GXSNETDEBUG_PG(item->PeerId(),grpId) << " grp locally contains " << msgMetaV.size() << " messsages." << std::endl; #endif std::vector::const_iterator vit = msgMetaV.begin(); std::set msgIdSet; // put ids in set for each searching for(; vit != msgMetaV.end(); ++vit) { msgIdSet.insert((*vit)->mMsgId); delete(*vit); } msgMetaV.clear(); #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_PG(item->PeerId(),grpId) << " grp locally contains " << msgIdSet.size() << " unique messsages." << std::endl; #endif // get unique id for this transaction uint32_t transN = locked_getTransactionId(); #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_PG(item->PeerId(),grpId) << " new transaction ID: " << transN << std::endl; #endif // add msgs that you don't have to request list std::list::iterator llit = msgItemL.begin(); std::list reqList; int reqListSize = 0 ; const RsPeerId peerFrom = tr->mTransaction->PeerId(); MsgAuthorV toVet; std::list peers; peers.push_back(tr->mTransaction->PeerId()); bool reqListSizeExceeded = false ; #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_PG(item->PeerId(),grpId) << " sorting items..." << std::endl; #endif for(; llit != msgItemL.end(); ++llit) { RsNxsSyncMsgItem*& syncItem = *llit; const RsGxsMessageId& msgId = syncItem->msgId; #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_PG(item->PeerId(),grpId) << " msg ID = " << msgId ; #endif if(reqListSize >= MAX_REQLIST_SIZE) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_PG(item->PeerId(),grpId) << ". reqlist too big. Pruning out this item for now." << std::endl; #endif reqListSizeExceeded = true ; continue ; // we should actually break, but we need to print some debug info. } if(reqListSize < MAX_REQLIST_SIZE && msgIdSet.find(msgId) == msgIdSet.end()) { // if reputation is in reputations cache then proceed // or if there isn't an author (note as author requirement is // enforced at service level, if no author is needed then reputation // filtering is optional) bool noAuthor = syncItem->authorId.isNull(); #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_PG(item->PeerId(),grpId) << ", reqlist size=" << reqListSize << ", message not present." ; #endif // grp meta must be present if author present if(!noAuthor && grpMeta == NULL) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_PG(item->PeerId(),grpId) << ", no group meta found. Givign up." << std::endl; #endif continue; } if(rsReputations->isIdentityBanned(syncItem->authorId)) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_PG(item->PeerId(),grpId) << ", Identity " << syncItem->authorId << " is banned. Not requesting message!" << std::endl; #endif continue ; } if(mRejectedMessages.find(msgId) != mRejectedMessages.end()) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_PG(item->PeerId(),grpId) << ", message has been recently rejected. Not requesting message!" << std::endl; #endif continue ; } if(mReputations->haveReputation(syncItem->authorId) || noAuthor) { GixsReputation rep; #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_PG(item->PeerId(),grpId) << ", author Id=" << syncItem->authorId << ". Reputation: " ; #endif if(!noAuthor) mReputations->getReputation(syncItem->authorId, rep); // if author is required for this message, it will simply get dropped // at genexchange side of things if(rep.score >= (int)grpMeta->mReputationCutOff || noAuthor) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_PG(item->PeerId(),grpId) << ", passed! Adding message to req list." << std::endl; #endif RsNxsSyncMsgItem* msgItem = new RsNxsSyncMsgItem(mServType); msgItem->grpId = grpId; msgItem->msgId = msgId; msgItem->flag = RsNxsSyncMsgItem::FLAG_REQUEST; msgItem->transactionNumber = transN; msgItem->PeerId(peerFrom); reqList.push_back(msgItem); ++reqListSize ; } #ifdef NXS_NET_DEBUG_1 else GXSNETDEBUG_PG(item->PeerId(),grpId) << ", failed!" << std::endl; #endif } else { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_PG(item->PeerId(),grpId) << ", no author/no reputation. Pushed to Vetting list." << std::endl; #endif // preload for speed mReputations->loadReputation(syncItem->authorId, peers); MsgAuthEntry entry; entry.mAuthorId = syncItem->authorId; entry.mGrpId = syncItem->grpId; entry.mMsgId = syncItem->msgId; toVet.push_back(entry); } } #ifdef NXS_NET_DEBUG_1 else GXSNETDEBUG_PG(item->PeerId(),grpId) << ". already here." << std::endl; #endif } if(!toVet.empty()) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_PG(item->PeerId(),grpId) << " Vetting list: " << toVet.size() << " elements." << std::endl; #endif MsgRespPending* mrp = new MsgRespPending(mReputations, tr->mTransaction->PeerId(), toVet, cutoff); mPendingResp.push_back(mrp); } if(!reqList.empty()) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_PG(item->PeerId(),grpId) << " Request list: " << reqList.size() << " elements." << std::endl; #endif locked_pushMsgTransactionFromList(reqList, tr->mTransaction->PeerId(), transN); if(reqListSizeExceeded) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_PG(item->PeerId(),grpId) << " Marking update operation as unfinished." << std::endl; #endif mPartialMsgUpdates[tr->mTransaction->PeerId()].insert(item->grpId) ; } else { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_PG(item->PeerId(),grpId) << " Marking update operation as terminal." << std::endl; #endif mPartialMsgUpdates[tr->mTransaction->PeerId()].erase(item->grpId) ; } } else { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_PG(item->PeerId(),grpId) << " Request list is empty. Not doing anything. " << std::endl; #endif // The list to req is empty. That means we already have all messages that this peer can // provide. So we can stamp the group from this peer to be up to date. // Part of this is already achieved in two other places: // - the GroupStats exchange system, which counts the messages at each peer. It could also supply TS for the messages, but it does not for the time being // - client TS are updated when receiving messages locked_stampPeerGroupUpdateTime(pid,grpId,tr->mTransaction->updateTS,msgItemL.size()) ; } } void RsGxsNetService::locked_stampPeerGroupUpdateTime(const RsPeerId& pid,const RsGxsGroupId& grpId,time_t tm,uint32_t n_messages) { std::map::iterator it = mClientMsgUpdateMap.find(pid) ; RsGxsMsgUpdateItem *pitem; if(it == mClientMsgUpdateMap.end()) { pitem = new RsGxsMsgUpdateItem(mServType) ; pitem->peerId = pid ; mClientMsgUpdateMap[pid] = pitem ; } else pitem = it->second ; pitem->msgUpdateInfos[grpId].time_stamp = tm; pitem->msgUpdateInfos[grpId].message_count = std::max(n_messages, pitem->msgUpdateInfos[grpId].message_count) ; IndicateConfigChanged(); } void RsGxsNetService::locked_pushGrpTransactionFromList( std::list& reqList, const RsPeerId& peerId, const uint32_t& transN) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(peerId) << "locked_pushGrpTransactionFromList()" << std::endl; GXSNETDEBUG_P_(peerId) << " nelems = " << reqList.size() << std::endl; GXSNETDEBUG_P_(peerId) << " peerId = " << peerId << std::endl; GXSNETDEBUG_P_(peerId) << " transN = " << transN << std::endl; #endif #ifdef NXS_NET_DEBUG_5 GXSNETDEBUG_P_ (peerId) << "Service " << std::hex << ((mServiceInfo.mServiceType >> 8)& 0xffff) << std::dec << " - sending group request to peer " << peerId << " for " << reqList.size() << " groups" << std::endl; #endif RsNxsTransacItem* transac = new RsNxsTransacItem(mServType); transac->transactFlag = RsNxsTransacItem::FLAG_TYPE_GRP_LIST_REQ | RsNxsTransacItem::FLAG_BEGIN_P1; transac->timestamp = 0; transac->nItems = reqList.size(); transac->PeerId(peerId); transac->transactionNumber = transN; NxsTransaction* newTrans = new NxsTransaction(); newTrans->mItems = reqList; newTrans->mFlag = NxsTransaction::FLAG_STATE_WAITING_CONFIRM; newTrans->mTimeOut = time(NULL) + mTransactionTimeOut; newTrans->mTransaction = new RsNxsTransacItem(*transac); newTrans->mTransaction->PeerId(mOwnId); sendItem(transac); if (!locked_addTransaction(newTrans)) delete newTrans; } void RsGxsNetService::addGroupItemToList(NxsTransaction*& tr, const RsGxsGroupId& grpId, uint32_t& transN, std::list& reqList) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_PG(tr->mTransaction->PeerId(),grpId) << "RsGxsNetService::addGroupItemToList() Added GroupID: << grpId" << std::endl; #endif RsNxsSyncGrpItem* grpItem = new RsNxsSyncGrpItem(mServType); grpItem->PeerId(tr->mTransaction->PeerId()); grpItem->grpId = grpId; grpItem->flag = RsNxsSyncMsgItem::FLAG_REQUEST; grpItem->transactionNumber = transN; reqList.push_back(grpItem); } void RsGxsNetService::locked_genReqGrpTransaction(NxsTransaction* tr) { // to create a transaction you need to know who you are transacting with // then what grps to request // then add an active Transaction for request #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_(tr->mTransaction->PeerId()) << "locked_genReqGrpTransaction(): " << std::endl; #endif RsGxsMetaDataTemporaryMap grpMetaMap; std::list grpItemL; for(std::list::iterator lit = tr->mItems.begin(); lit != tr->mItems.end(); ++lit) { RsNxsSyncGrpItem* item = dynamic_cast(*lit); if(item) { grpItemL.push_back(item); grpMetaMap[item->grpId] = NULL; }else { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_PG(tr->mTransaction->PeerId(),item->grpId) << "RsGxsNetService::genReqGrpTransaction(): item failed to caste to RsNxsSyncMsgItem* " << std::endl; #endif } } if (grpItemL.empty()) return; mDataStore->retrieveGxsGrpMetaData(grpMetaMap); // now do compare and add loop std::list::iterator llit = grpItemL.begin(); std::list reqList; uint32_t transN = locked_getTransactionId(); GrpAuthorV toVet; std::list peers; peers.push_back(tr->mTransaction->PeerId()); for(; llit != grpItemL.end(); ++llit) { RsNxsSyncGrpItem*& grpSyncItem = *llit; const RsGxsGroupId& grpId = grpSyncItem->grpId; std::map::const_iterator metaIter = grpMetaMap.find(grpId); bool haveItem = false; bool latestVersion = false; if (metaIter != grpMetaMap.end() && metaIter->second) { haveItem = true; latestVersion = grpSyncItem->publishTs > metaIter->second->mPublishTs; } if(!grpSyncItem->authorId.isNull() && rsReputations->isIdentityBanned(grpSyncItem->authorId)) { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_PG(tr->mTransaction->PeerId(),grpId) << " Identity " << grpSyncItem->authorId << " is banned. Not syncing group." << std::endl; #endif continue ; } if( (mGrpAutoSync && !haveItem) || latestVersion) { // determine if you need to check reputation bool checkRep = !grpSyncItem->authorId.isNull(); // check if you have reputation, if you don't then // place in holding pen if(checkRep) { if(mReputations->haveReputation(grpSyncItem->authorId)) { GixsReputation rep; mReputations->getReputation(grpSyncItem->authorId, rep); if(rep.score >= GIXS_CUT_OFF) { addGroupItemToList(tr, grpId, transN, reqList); #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_PG(tr->mTransaction->PeerId(),grpId)<< " reputation cut off: limit=" << GIXS_CUT_OFF << " value=" << rep.score << ": allowed." << std::endl; #endif } #ifdef NXS_NET_DEBUG_0 else GXSNETDEBUG_PG(tr->mTransaction->PeerId(),grpId)<< " reputation cut off: limit=" << GIXS_CUT_OFF << " value=" << rep.score << ": you shall not pass." << std::endl; #endif } else { // preload reputation for later mReputations->loadReputation(grpSyncItem->authorId, peers); GrpAuthEntry entry; entry.mAuthorId = grpSyncItem->authorId; entry.mGrpId = grpSyncItem->grpId; toVet.push_back(entry); } } else { addGroupItemToList(tr, grpId, transN, reqList); } } } if(!toVet.empty()) { RsPeerId peerId = tr->mTransaction->PeerId(); GrpRespPending* grp = new GrpRespPending(mReputations, peerId, toVet); mPendingResp.push_back(grp); } if(!reqList.empty()) locked_pushGrpTransactionFromList(reqList, tr->mTransaction->PeerId(), transN); else { ClientGrpMap::iterator it = mClientGrpUpdateMap.find(tr->mTransaction->PeerId()); RsGxsGrpUpdateItem* item = NULL; if(it != mClientGrpUpdateMap.end()) item = it->second; else { item = new RsGxsGrpUpdateItem(mServType); mClientGrpUpdateMap.insert(std::make_pair(tr->mTransaction->PeerId(), item)); } #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_(tr->mTransaction->PeerId()) << " reqList is empty, updating anyway ClientGrpUpdate TS for peer " << tr->mTransaction->PeerId() << " to: " << tr->mTransaction->updateTS << std::endl; #endif item->grpUpdateTS = tr->mTransaction->updateTS; item->peerId = tr->mTransaction->PeerId(); IndicateConfigChanged(); } } void RsGxsNetService::locked_genSendGrpsTransaction(NxsTransaction* tr) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(tr->mTransaction->PeerId()) << "locked_genSendGrpsTransaction() Generating Grp data send fron TransN: " << tr->mTransaction->transactionNumber << std::endl; #endif // go groups requested in transaction tr std::list::iterator lit = tr->mItems.begin(); RsGxsMetaDataTemporaryMap grps ; for(;lit != tr->mItems.end(); ++lit) { RsNxsSyncGrpItem* item = dynamic_cast(*lit); if (item) grps[item->grpId] = NULL; else { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_PG(tr->mTransaction->PeerId(),item->grpId) << "RsGxsNetService::locked_genSendGrpsTransaction(): item failed to caste to RsNxsSyncGrpItem* " << std::endl; #endif } } if(!grps.empty()) mDataStore->retrieveNxsGrps(grps, false, false); else return; NxsTransaction* newTr = new NxsTransaction(); newTr->mFlag = NxsTransaction::FLAG_STATE_WAITING_CONFIRM; uint32_t transN = locked_getTransactionId(); // store grp items to send in transaction std::map::iterator mit = grps.begin(); RsPeerId peerId = tr->mTransaction->PeerId(); for(;mit != grps.end(); ++mit) { mit->second->PeerId(peerId); // set so it gets sent to right peer mit->second->transactionNumber = transN; newTr->mItems.push_back(mit->second); mit->second = NULL ; // avoids deletion } if(newTr->mItems.empty()){ delete newTr; return; } uint32_t updateTS = 0; if(mGrpServerUpdateItem) updateTS = mGrpServerUpdateItem->grpUpdateTS; #ifdef NXS_NET_DEBUG_5 GXSNETDEBUG_P_ (tr->mTransaction->PeerId()) << "Service " << std::hex << ((mServiceInfo.mServiceType >> 8)& 0xffff) << std::dec << " - sending global group TS " << updateTS << " to peer " << tr->mTransaction->PeerId() << std::endl; #endif RsNxsTransacItem* ntr = new RsNxsTransacItem(mServType); ntr->transactionNumber = transN; ntr->transactFlag = RsNxsTransacItem::FLAG_BEGIN_P1 | RsNxsTransacItem::FLAG_TYPE_GRPS; ntr->updateTS = updateTS; ntr->nItems = grps.size(); ntr->PeerId(tr->mTransaction->PeerId()); newTr->mTransaction = new RsNxsTransacItem(*ntr); newTr->mTransaction->PeerId(mOwnId); newTr->mTimeOut = time(NULL) + mTransactionTimeOut; ntr->PeerId(tr->mTransaction->PeerId()); sendItem(ntr); locked_addTransaction(newTr); return; } void RsGxsNetService::runVetting() { // The vetting operation consists in transforming pending group/msg Id requests and grp/msg content requests // into real transactions, based on the authorisations of the Peer Id these transactions are targeted to using the // reputation system. // RS_STACK_MUTEX(mNxsMutex) ; std::vector::iterator vit = mPendingResp.begin(); for(; vit != mPendingResp.end(); ) { AuthorPending* ap = *vit; if(ap->accepted() || ap->expired()) { // add to transactions if(AuthorPending::MSG_PEND == ap->getType()) { MsgRespPending* mrp = static_cast(ap); locked_createTransactionFromPending(mrp); } else if(AuthorPending::GRP_PEND == ap->getType()) { GrpRespPending* grp = static_cast(ap); locked_createTransactionFromPending(grp); }else std::cerr << "RsGxsNetService::runVetting(): Unknown pending type! Type: " << ap->getType() << std::endl; delete ap; vit = mPendingResp.erase(vit); } else { ++vit; } } // now lets do circle vetting std::vector::iterator vit2 = mPendingCircleVets.begin(); for(; vit2 != mPendingCircleVets.end(); ) { GrpCircleVetting*& gcv = *vit2; if(gcv->cleared() || gcv->expired()) { if(gcv->getType() == GrpCircleVetting::GRP_ID_PEND) { GrpCircleIdRequestVetting* gcirv = static_cast(gcv); locked_createTransactionFromPending(gcirv); } else if(gcv->getType() == GrpCircleVetting::MSG_ID_SEND_PEND) { MsgCircleIdsRequestVetting* mcirv = static_cast(gcv); if(mcirv->cleared()) locked_createTransactionFromPending(mcirv); } else { #ifdef NXS_NET_DEBUG_4 std::cerr << "RsGxsNetService::runVetting(): Unknown Circle pending type! Type: " << gcv->getType() << std::endl; #endif } delete gcv; vit2 = mPendingCircleVets.erase(vit2); } else { ++vit2; } } } void RsGxsNetService::locked_genSendMsgsTransaction(NxsTransaction* tr) { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_(tr->mTransaction->PeerId()) << "locked_genSendMsgsTransaction() Generating Msg data send fron TransN: " << tr->mTransaction->transactionNumber << std::endl; #endif // go groups requested in transaction tr std::list::iterator lit = tr->mItems.begin(); GxsMsgReq msgIds; GxsMsgResult msgs; if(tr->mItems.empty()){ return; } // hacky assumes a transaction only consist of a single grpId RsGxsGroupId grpId; for(;lit != tr->mItems.end(); ++lit) { RsNxsSyncMsgItem* item = dynamic_cast(*lit); if (item) { msgIds[item->grpId].push_back(item->msgId); if(grpId.isNull()) grpId = item->grpId; else if(grpId != item->grpId) { std::cerr << "RsGxsNetService::locked_genSendMsgsTransaction(): transaction on two different groups! ERROR!" << std::endl; return ; } } else { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_PG(tr->mTransaction->PeerId(),grpId) << "RsGxsNetService::locked_genSendMsgsTransaction(): item failed to caste to RsNxsSyncMsgItem* " << std::endl; #endif } } mDataStore->retrieveNxsMsgs(msgIds, msgs, false, false); NxsTransaction* newTr = new NxsTransaction(); newTr->mFlag = NxsTransaction::FLAG_STATE_WAITING_CONFIRM; uint32_t transN = locked_getTransactionId(); // store msg items to send in transaction GxsMsgResult::iterator mit = msgs.begin(); RsPeerId peerId = tr->mTransaction->PeerId(); uint32_t msgSize = 0; for(;mit != msgs.end(); ++mit) { std::vector& msgV = mit->second; std::vector::iterator vit = msgV.begin(); for(; vit != msgV.end(); ++vit) { RsNxsMsg* msg = *vit; msg->PeerId(peerId); msg->transactionNumber = transN; // Quick trick to clamp messages with an exceptionnally large size. Signature will fail on client side, and the message // will be rejected. if(msg->msg.bin_len > MAX_ALLOWED_GXS_MESSAGE_SIZE) { std::cerr << "(WW) message with ID " << msg->msgId << " in group " << msg->grpId << " exceeds size limit of " << MAX_ALLOWED_GXS_MESSAGE_SIZE << " bytes. Actual size is " << msg->msg.bin_len << " bytes. Message will be truncated and rejected at client." << std::endl; msg->msg.bin_len = 1 ; // arbitrary small size, but not 0. No need to send the data since it's going to be rejected. } #ifdef NXS_FRAG MsgFragments fragments; fragmentMsg(*msg, fragments); delete msg ; MsgFragments::iterator mit = fragments.begin(); for(; mit != fragments.end(); ++mit) { newTr->mItems.push_back(*mit); msgSize++; } #else msg->count = 1; // only one piece. This is to keep compatibility if we ever implement fragmenting in the future. msg->pos = 0; newTr->mItems.push_back(msg); msgSize++; #endif } } if(newTr->mItems.empty()){ delete newTr; return; } // now if transaction is limited to an external group, encrypt it for members of the group. std::map grp; grp[grpId] = NULL ; mDataStore->retrieveGxsGrpMetaData(grp); RsGxsGrpMetaData *grpMeta = grp[grpId] ; if(grpMeta != NULL) { newTr->destination_circle = grpMeta->mCircleId ; delete grpMeta ; grp.clear() ; } // now send a transaction item and store the transaction data uint32_t updateTS = 0; ServerMsgMap::const_iterator cit = mServerMsgUpdateMap.find(grpId); if(cit != mServerMsgUpdateMap.end()) updateTS = cit->second->msgUpdateTS; RsNxsTransacItem* ntr = new RsNxsTransacItem(mServType); ntr->transactionNumber = transN; ntr->transactFlag = RsNxsTransacItem::FLAG_BEGIN_P1 | RsNxsTransacItem::FLAG_TYPE_MSGS; ntr->updateTS = updateTS; ntr->nItems = msgSize; ntr->PeerId(peerId); newTr->mTransaction = new RsNxsTransacItem(*ntr); newTr->mTransaction->PeerId(mOwnId); newTr->mTimeOut = time(NULL) + mTransactionTimeOut; #ifdef NXS_NET_DEBUG_5 GXSNETDEBUG_PG (peerId,grpId) << "Service " << std::hex << ((mServiceInfo.mServiceType >> 8)& 0xffff) << std::dec << " - sending message update to peer " << peerId << " for group " << grpId << " with TS=" << nice_time_stamp(time(NULL),updateTS) <<" (secs ago)" << std::endl; #endif ntr->PeerId(tr->mTransaction->PeerId()); sendItem(ntr); // Encryption will happen here if needed. locked_addTransaction(newTr); return; } uint32_t RsGxsNetService::locked_getTransactionId() { return ++mTransactionN; } bool RsGxsNetService::locked_addTransaction(NxsTransaction* tr) { const RsPeerId& peer = tr->mTransaction->PeerId(); uint32_t transN = tr->mTransaction->transactionNumber; TransactionIdMap& transMap = mTransactions[peer]; bool transNumExist = transMap.find(transN) != transMap.end(); if(transNumExist) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(peer) << "locked_addTransaction() " << std::endl; GXSNETDEBUG_P_(peer) << "Transaction number exist already, transN: " << transN << std::endl; #endif return false; }else{ #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_P_(peer) << "locked_addTransaction() " << std::endl; GXSNETDEBUG_P_(peer) << "Added transaction number " << transN << std::endl; #endif transMap[transN] = tr; return true; } #ifdef NXS_NET_DEBUG_1 std::cerr << "locked_addTransaction() " << std::endl; std::cerr << "Added transaction number " << transN << std::endl; #endif if(!tr->destination_circle.isNull()) encryptTransaction(tr); transMap[transN] = tr; return true; } bool RsGxsNetService::encryptTransaction(NxsTransaction *tr) { #ifdef NXS_NET_DEBUG_7 RsPeerId peerId = tr->mTransaction->PeerId() ; GXSNETDEBUG_P_ (peerId) << "Service " << std::hex << ((mServiceInfo.mServiceType >> 8)& 0xffff) << std::dec << " - Encrypting transaction for peer " << peerId << ", for circle ID " << tr->destination_circle << std::endl; #endif std::cerr << "RsGxsNetService::encryptTransaction()" << std::endl; // 1 - Find out the list of GXS ids to encrypt for // We could do smarter things (like see if the peer_id owns one of the circle's identities // but for now we aim at the simplest solution: encrypt for all identities in the circle. std::list recipients ; if(!mCircles->recipients(tr->destination_circle,recipients)) { std::cerr << " (EE) Cannot encrypt transaction: recipients list not available." << std::endl; return false ; } #ifdef NXS_NET_DEBUG_7 GXSNETDEBUG_P_ (peerId) << " Dest Ids: " << std::endl; #endif std::vector recipient_keys ; for(std::list::const_iterator it(recipients.begin());it!=recipients.end();++it) { RsTlvSecurityKey pkey ; if(!mGixs->getKey(*it,pkey)) { std::cerr << "(EE) Cannot retrieve public key " << *it << " for circle encryption." << std::endl; // we should probably request the key. continue ; } #ifdef NXS_NET_DEBUG_7 GXSNETDEBUG_P_ (peerId) << " added key " << *it << std::endl; #endif recipient_keys.push_back(pkey) ; } // 2 - call GXSSecurity to make a header item that encrypts for the given list of peers. #ifdef NXS_NET_DEBUG_7 GXSNETDEBUG_P_ (peerId) << " Encrypting..." << std::endl; #endif GxsSecurity::MultiEncryptionContext muctx ; GxsSecurity::initEncryption(muctx,recipient_keys); // 3 - serialise and encrypt each message, converting it into a NxsEncryptedDataItem std::list encrypted_items ; for(std::list::const_iterator it(tr->mItems.begin());it!=tr->mItems.end();++it) { uint32_t size = (*it)->serial_size() ; RsTemporaryMemory tempmem( size ) ; if(!(*it)->serialise(tempmem,size)) { std::cerr << " (EE) Cannot serialise item. Something went wrong." << std::endl; continue ; } unsigned char *encrypted_data = NULL ; uint32_t encrypted_len = 0 ; if(!GxsSecurity::encrypt(encrypted_data, encrypted_len,tempmem,size,muctx)) { std::cerr << " (EE) Cannot multi-encrypt item. Something went wrong." << std::endl; continue ; } RsNxsEncryptedDataItem *enc_item = new RsNxsEncryptedDataItem(mServType) ; enc_item->aes_encrypted_data.bin_len = encrypted_len ; enc_item->aes_encrypted_data.bin_data = encrypted_data ; enc_item->aes_encrypted_data.tlvtype = TLV_TYPE_BIN_ENCRYPTED ; encrypted_items.push_back(enc_item) ; #ifdef NXS_NET_DEBUG_7 GXSNETDEBUG_P_(peerId) << " encrypted item of size " << encrypted_len << std::endl; #endif } // 4 - put back in transaction. for(std::list::const_iterator it(tr->mItems.begin());it!=tr->mItems.end();++it) delete *it ; tr->mItems = encrypted_items ; // 5 - make session key item and push it front. #ifdef NXS_NET_DEBUG_7 GXSNETDEBUG_P_(peerId) << " Creating session key" << std::endl; #endif RsNxsSessionKeyItem *session_key_item = new RsNxsSessionKeyItem(mServType) ; memcpy(session_key_item->iv,muctx.initialisation_vector(),EVP_MAX_IV_LENGTH) ; for(int i=0;iencrypted_session_keys[muctx.encrypted_key_id(i)] = data ; } tr->mItems.push_front(session_key_item) ; return true ; } bool RsGxsNetService::decryptTransaction(NxsTransaction *tr) { #ifdef NXS_NET_DEBUG_7 RsPeerId peerId = tr->mTransaction->PeerId() ; GXSNETDEBUG_P_(peerId) << "RsGxsNetService::decryptTransaction()" << std::endl; GXSNETDEBUG_P_(peerId) << " Circle Id: " << tr->destination_circle << std::endl; #endif // 1 - Checks that the transaction is encrypted. It should contain // one packet with an encrypted session key for the group, // and as many encrypted data items as necessary. RsNxsSessionKeyItem *esk = NULL; for(std::list::const_iterator it(tr->mItems.begin());it!=tr->mItems.end();++it) if(NULL != (esk = dynamic_cast(*it))) break ; if(esk == NULL) { #ifdef NXS_NET_DEBUG_7 GXSNETDEBUG_P_(peerId) << " (II) nothing to decrypt. No session key packet in this transaction." << std::endl; #endif return false ; } // 2 - Try to decrypt the session key. If not, return false. That probably means // we don't own that identity. GxsSecurity::MultiEncryptionContext muctx ; RsGxsId private_key_id ; RsTlvBinaryData ek ; RsTlvSecurityKey private_key; bool found = false ; for(std::map::const_iterator it(esk->encrypted_session_keys.begin());it!=esk->encrypted_session_keys.end();++it) if(mGixs->havePrivateKey(it->first)) { found = true ; private_key_id = it->first ; ek = it->second ; if(!mGixs->getPrivateKey(private_key_id,private_key)) { std::cerr << "(EE) Cannot find private key to decrypt incoming transaction, for ID " << it->first << ". This is a bug since the key is supposed ot be here." << std::endl; return false; } #ifdef NXS_NET_DEBUG_7 GXSNETDEBUG_P_(peerId) << " found appropriate private key to decrypt session key: " << it->first << std::endl; #endif break ; } if(!found) { std::cerr << " (EE) no private key for this encrypted transaction. Cannot decrypt!" << std::endl; return false ; } if(!GxsSecurity::initDecryption(muctx,private_key,esk->iv,EVP_MAX_IV_LENGTH,(unsigned char*)ek.bin_data,ek.bin_len)) { std::cerr << " (EE) cannot decrypt transaction. initDecryption() failed." << std::endl; return false ; } #ifdef NXS_NET_DEBUG_7 GXSNETDEBUG_P_(peerId) << " Session key successfully decrypted, with length " << ek.bin_len << std::endl; GXSNETDEBUG_P_(peerId) << " Now, decrypting transaction items..." << std::endl; #endif // 3 - Using session key, decrypt all packets, by calling GXSSecurity. std::list decrypted_items ; RsNxsEncryptedDataItem *encrypted_item ; RsNxsSerialiser serial(mServType) ; for(std::list::const_iterator it(tr->mItems.begin());it!=tr->mItems.end();++it) if(NULL != (encrypted_item = dynamic_cast(*it))) { unsigned char *tempmem; uint32_t tempmemsize ; if(!GxsSecurity::decrypt(tempmem,tempmemsize,(uint8_t*)encrypted_item->aes_encrypted_data.bin_data, encrypted_item->aes_encrypted_data.bin_len,muctx)) { std::cerr << " (EE) Cannot decrypt item. Something went wrong. Skipping this item." << std::endl; continue ; } RsItem *ditem = serial.deserialise(tempmem,&tempmemsize) ; #ifdef NXS_NET_DEBUG_7 GXSNETDEBUG_P_(peerId) << " Decrypted an item of type " << std::hex << ditem->PacketId() << std::dec << std::endl; #endif RsNxsItem *nxsi = dynamic_cast(ditem) ; if(nxsi != NULL) decrypted_items.push_back(nxsi) ; else { std::cerr << " (EE) decrypted an item of unknown type!" << std::endl; } free(tempmem) ; } // 4 - put back in transaction. #ifdef NXS_NET_DEBUG_7 GXSNETDEBUG_P_(peerId) << " replacing items with clear items" << std::endl; #endif for(std::list::const_iterator it(tr->mItems.begin());it!=tr->mItems.end();++it) delete *it ; tr->mItems = decrypted_items ; return true ; } void RsGxsNetService::cleanTransactionItems(NxsTransaction* tr) const { std::list::iterator lit = tr->mItems.begin(); for(; lit != tr->mItems.end(); ++lit) { delete *lit; } tr->mItems.clear(); } void RsGxsNetService::locked_pushGrpRespFromList(std::list& respList, const RsPeerId& peer, const uint32_t& transN) { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_(peer) << "locked_pushGrpResponseFromList()" << std::endl; GXSNETDEBUG_P_(peer) << " nelems = " << respList.size() << std::endl; GXSNETDEBUG_P_(peer) << " peerId = " << peer << std::endl; GXSNETDEBUG_P_(peer) << " transN = " << transN << std::endl; #endif NxsTransaction* tr = new NxsTransaction(); tr->mItems = respList; tr->mFlag = NxsTransaction::FLAG_STATE_WAITING_CONFIRM; RsNxsTransacItem* trItem = new RsNxsTransacItem(mServType); trItem->transactFlag = RsNxsTransacItem::FLAG_BEGIN_P1 | RsNxsTransacItem::FLAG_TYPE_GRP_LIST_RESP; trItem->nItems = respList.size(); trItem->timestamp = 0; trItem->PeerId(peer); trItem->transactionNumber = transN; #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_ (peer) << "Setting tr->mTransaction->updateTS to " << mGrpServerUpdateItem->grpUpdateTS << std::endl; #endif trItem->updateTS = mGrpServerUpdateItem->grpUpdateTS; // also make a copy for the resident transaction tr->mTransaction = new RsNxsTransacItem(*trItem); tr->mTransaction->PeerId(mOwnId); tr->mTimeOut = time(NULL) + mTransactionTimeOut; // signal peer to prepare for transaction #ifdef NXS_NET_DEBUG_5 GXSNETDEBUG_P_ (peer) << "Service " << std::hex << ((mServiceInfo.mServiceType >> 8)& 0xffff) << std::dec << " - sending group response to peer " << peer << " with " << respList.size() << " groups " << std::endl; #endif sendItem(trItem); locked_addTransaction(tr); } bool RsGxsNetService::locked_CanReceiveUpdate(const RsNxsSyncGrpReqItem *item) { // Do we have new updates for this peer? // This is one of the few places where we compare a local time stamp (mGrpServerUpdateItem->grpUpdateTS) to a peer's time stamp. // Because this is the global modification time for groups, async-ed computers will eventually figure out that their data needs // to be synced. if(mGrpServerUpdateItem) { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_(item->PeerId()) << " local modification time stamp: " << std::dec<< time(NULL) - mGrpServerUpdateItem->grpUpdateTS << " secs ago. Update sent: " << ((item->updateTS < mGrpServerUpdateItem->grpUpdateTS)?"YES":"NO") << std::endl; #endif return item->updateTS < mGrpServerUpdateItem->grpUpdateTS; } #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_(item->PeerId()) << " no local time stamp. This will be fixed after updateServerSyncTS(). Not sending for now. " << std::endl; #endif return false; } void RsGxsNetService::handleRecvSyncGroup(RsNxsSyncGrpReqItem *item) { if (!item) return; RS_STACK_MUTEX(mNxsMutex) ; RsPeerId peer = item->PeerId(); #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_(peer) << "HandleRecvSyncGroup(): Service: " << mServType << " from " << peer << ", Last update TS (from myself) sent from peer is T = " << std::dec<< time(NULL) - item->updateTS << " secs ago" << std::endl; #endif if(!locked_CanReceiveUpdate(item)) { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_(peer) << " RsGxsNetService::handleRecvSyncGroup() update will not be sent." << std::endl; #endif return; } RsGxsMetaDataTemporaryMap grp; mDataStore->retrieveGxsGrpMetaData(grp); #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_(peer) << " RsGxsNetService::handleRecvSyncGroup() retrieving local list of groups..." << std::endl; #endif if(grp.empty()) { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_(peer) << " RsGxsNetService::handleRecvSyncGroup() Grp Empty" << std::endl; #endif return; } std::list itemL; uint32_t transN = locked_getTransactionId(); std::vector toVet; #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_(peer) << " Group list beings being sent: " << std::endl; #endif for(std::map::iterator mit = grp.begin(); mit != grp.end(); ++mit) { RsGxsGrpMetaData* grpMeta = mit->second; // Only send info about subscribed groups. if(grpMeta->mSubscribeFlags & GXS_SERV::GROUP_SUBSCRIBE_SUBSCRIBED) { // check if you can send this id to peer // or if you need to add to the holding // pen for peer to be vetted if(canSendGrpId(peer, *grpMeta, toVet)) { RsNxsSyncGrpItem* gItem = new RsNxsSyncGrpItem(mServType); gItem->flag = RsNxsSyncGrpItem::FLAG_RESPONSE; gItem->grpId = mit->first; gItem->publishTs = mit->second->mPublishTs; gItem->authorId = grpMeta->mAuthorId; gItem->PeerId(peer); gItem->transactionNumber = transN; itemL.push_back(gItem); #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_PG(peer,mit->first) << " sending item for Grp " << mit->first << " name=" << grpMeta->mGroupName << ", publishTS=" << std::dec<< time(NULL) - mit->second->mPublishTs << " secs ago to peer ID " << peer << std::endl; #endif } } } if(!toVet.empty()) { mPendingCircleVets.push_back(new GrpCircleIdRequestVetting(mCircles, mPgpUtils, toVet, peer)); } #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_P_(peer) << " final list sent (after vetting): " << itemL.size() << " elements." << std::endl; #endif locked_pushGrpRespFromList(itemL, peer, transN); return; } bool RsGxsNetService::canSendGrpId(const RsPeerId& sslId, RsGxsGrpMetaData& grpMeta, std::vector& toVet) { #ifdef NXS_NET_DEBUG_4 GXSNETDEBUG_PG(sslId,grpMeta.mGroupId) << "RsGxsNetService::canSendGrpId()"<< std::endl; #endif // first do the simple checks uint8_t circleType = grpMeta.mCircleType; if(circleType == GXS_CIRCLE_TYPE_LOCAL) { #ifdef NXS_NET_DEBUG_4 GXSNETDEBUG_PG(sslId,grpMeta.mGroupId)<< " LOCAL_CIRCLE, cannot send"<< std::endl; #endif return false; } if(circleType == GXS_CIRCLE_TYPE_PUBLIC) { #ifdef NXS_NET_DEBUG_4 GXSNETDEBUG_PG(sslId,grpMeta.mGroupId)<< " PUBLIC_CIRCLE, can send"<< std::endl; #endif return true; } if(circleType == GXS_CIRCLE_TYPE_EXTERNAL) { const RsGxsCircleId& circleId = grpMeta.mCircleId; if(circleId.isNull()) { std::cerr << " EXTERNAL_CIRCLE missing NULL CircleId: " << grpMeta.mGroupId<< std::endl; // ERROR, will never be shared. return false; } if(mCircles->isLoaded(circleId)) { #ifdef NXS_NET_DEBUG_4 GXSNETDEBUG_PG(sslId,grpMeta.mGroupId)<< " EXTERNAL_CIRCLE, checking mCircles->canSend"<< std::endl; #endif // the sending authorisation is based on: // getPgpId(peer_id) being a signer of one GxsId in the Circle // const RsPgpId& pgpId = mPgpUtils->getPGPId(sslId); bool res = mCircles->canSend(circleId, pgpId); #ifdef NXS_NET_DEBUG_4 GXSNETDEBUG_PG(sslId,grpMeta.mGroupId)<< " answer is: " << res << std::endl; #endif return res ; } #ifdef NXS_NET_DEBUG_4 GXSNETDEBUG_PG(sslId,grpMeta.mGroupId)<< " grp not ready. Adding to vetting list." << std::endl; #endif toVet.push_back(GrpIdCircleVet(grpMeta.mGroupId, circleId, grpMeta.mAuthorId)); return false; } if(circleType == GXS_CIRCLE_TYPE_YOUREYESONLY) { #ifdef NXS_NET_DEBUG_4 GXSNETDEBUG_PG(sslId,grpMeta.mGroupId)<< "RsGxsNetService::canSendGrpId() YOUREYESONLY, checking further"<< std::endl; #endif // a non empty internal circle id means this // is the personal circle owner if(!grpMeta.mInternalCircle.isNull()) { const RsGxsCircleId& internalCircleId = grpMeta.mInternalCircle; #ifdef NXS_NET_DEBUG_4 GXSNETDEBUG_PG(sslId,grpMeta.mGroupId) << "RsGxsNetService::canSendGrpId() have mInternalCircle - we are Group creator" << std::endl; GXSNETDEBUG_PG(sslId,grpMeta.mGroupId) << "RsGxsNetService::canSendGrpId() mCircleId: " << grpMeta.mCircleId << std::endl; GXSNETDEBUG_PG(sslId,grpMeta.mGroupId) << "RsGxsNetService::canSendGrpId() mInternalCircle: " << grpMeta.mInternalCircle << std::endl; #endif if(mCircles->isLoaded(internalCircleId)) { #ifdef NXS_NET_DEBUG_4 GXSNETDEBUG_PG(sslId,grpMeta.mGroupId) << "RsGxsNetService::canSendGrpId() circle Loaded - checking mCircles->canSend" << std::endl; #endif const RsPgpId& pgpId = mPgpUtils->getPGPId(sslId); return mCircles->canSend(internalCircleId, pgpId); } #ifdef NXS_NET_DEBUG_4 GXSNETDEBUG_PG(sslId,grpMeta.mGroupId) << "RsGxsNetService::canSendGrpId() Circle Not Loaded - add to vetting"<< std::endl; #endif toVet.push_back(GrpIdCircleVet(grpMeta.mGroupId, internalCircleId, grpMeta.mAuthorId)); return false; } else { // an empty internal circle id means this peer can only // send circle related info from peer he received it #ifdef NXS_NET_DEBUG_4 GXSNETDEBUG_PG(sslId,grpMeta.mGroupId) << "RsGxsNetService::canSendGrpId() mInternalCircle not set, someone else's personal circle"<< std::endl; #endif if(grpMeta.mOriginator == sslId) { #ifdef NXS_NET_DEBUG_4 GXSNETDEBUG_PG(sslId,grpMeta.mGroupId) << "RsGxsNetService::canSendGrpId() Originator matches -> can send"<< std::endl; #endif return true; } else { #ifdef NXS_NET_DEBUG_4 GXSNETDEBUG_PG(sslId,grpMeta.mGroupId) << "RsGxsNetService::canSendGrpId() Originator doesn't match -> cannot send"<< std::endl; #endif return false; } } } return true; } bool RsGxsNetService::checkCanRecvMsgFromPeer(const RsPeerId& sslId, const RsGxsGrpMetaData& grpMeta) { #ifdef NXS_NET_DEBUG_4 GXSNETDEBUG_PG(sslId,grpMeta.mGroupId) << "RsGxsNetService::checkCanRecvMsgFromPeer()"; GXSNETDEBUG_PG(sslId,grpMeta.mGroupId) << " peer Id = " << sslId << ", grpId=" << grpMeta.mGroupId <isLoaded(circleId)) { #ifdef NXS_NET_DEBUG_4 GXSNETDEBUG_PG(sslId,grpMeta.mGroupId) << " EXTERNAL_CIRCLE, checking mCircles->canSend" << std::endl; #endif const RsPgpId& pgpId = mPgpUtils->getPGPId(sslId); return mCircles->canSend(circleId, pgpId); } else mCircles->loadCircle(circleId); // simply request for next pass return false; } if(circleType == GXS_CIRCLE_TYPE_YOUREYESONLY) // do not attempt to sync msg unless to originator or those permitted { #ifdef NXS_NET_DEBUG_4 GXSNETDEBUG_PG(sslId,grpMeta.mGroupId) << " YOUREYESONLY, checking further" << std::endl; #endif // a non empty internal circle id means this // is the personal circle owner if(!grpMeta.mInternalCircle.isNull()) { const RsGxsCircleId& internalCircleId = grpMeta.mInternalCircle; #ifdef NXS_NET_DEBUG_4 GXSNETDEBUG_PG(sslId,grpMeta.mGroupId) << " have mInternalCircle - we are Group creator" << std::endl; GXSNETDEBUG_PG(sslId,grpMeta.mGroupId) << " mCircleId: " << grpMeta.mCircleId << std::endl; GXSNETDEBUG_PG(sslId,grpMeta.mGroupId) << " mInternalCircle: " << grpMeta.mInternalCircle << std::endl; #endif if(mCircles->isLoaded(internalCircleId)) { #ifdef NXS_NET_DEBUG_4 GXSNETDEBUG_PG(sslId,grpMeta.mGroupId) << " circle Loaded - checking mCircles->canSend" << std::endl; #endif const RsPgpId& pgpId = mPgpUtils->getPGPId(sslId); return mCircles->canSend(internalCircleId, pgpId); } else mCircles->loadCircle(internalCircleId); // request for next pass return false; } else { // an empty internal circle id means this peer can only // send circle related info from peer he received it #ifdef NXS_NET_DEBUG_4 GXSNETDEBUG_PG(sslId,grpMeta.mGroupId) << " mInternalCircle not set, someone else's personal circle" << std::endl; #endif if(grpMeta.mOriginator == sslId) { #ifdef NXS_NET_DEBUG_4 GXSNETDEBUG_PG(sslId,grpMeta.mGroupId) << " Originator matches -> can send" << std::endl; #endif return true; } else { #ifdef NXS_NET_DEBUG_4 GXSNETDEBUG_PG(sslId,grpMeta.mGroupId) << " Originator doesn't match -> cannot send"<< std::endl; #endif return false; } } } return true; } bool RsGxsNetService::locked_CanReceiveUpdate(const RsNxsSyncMsgReqItem *item) { // Do we have new updates for this peer? // Here we compare times in the same clock: the friend's clock, so it should be fine. ServerMsgMap::const_iterator cit = mServerMsgUpdateMap.find(item->grpId); if(cit != mServerMsgUpdateMap.end()) { const RsGxsServerMsgUpdateItem *msui = cit->second; #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_PG(item->PeerId(),item->grpId) << " local time stamp: " << std::dec<< time(NULL) - msui->msgUpdateTS << " secs ago. Update sent: " << (item->updateTS < msui->msgUpdateTS) ; #endif return item->updateTS < msui->msgUpdateTS ; } #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_PG(item->PeerId(),item->grpId) << " no local time stamp for this grp. " ; #endif return false; } void RsGxsNetService::handleRecvSyncMessage(RsNxsSyncMsgReqItem *item) { if (!item) return; RS_STACK_MUTEX(mNxsMutex) ; const RsPeerId& peer = item->PeerId(); // Insert the PeerId in suppliers list for this grpId #ifdef NXS_NET_DEBUG_6 GXSNETDEBUG_PG(item->PeerId(),item->grpId) << "RsGxsNetService::handleRecvSyncMessage(): Inserting PeerId " << item->PeerId() << " in suppliers list for group " << item->grpId << std::endl; #endif RsGroupNetworkStatsRecord& rec(mGroupNetworkStats[item->grpId]) ; // this creates it if needed rec.suppliers.insert(peer) ; #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_PG(item->PeerId(),item->grpId) << "handleRecvSyncMsg(): Received last update TS of group " << item->grpId << ", for peer " << peer << ", TS = " << time(NULL) - item->updateTS << " secs ago." ; #endif if(!locked_CanReceiveUpdate(item)) { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_PG(item->PeerId(),item->grpId) << " no update will be sent." << std::endl; #endif return; } GxsMsgMetaResult metaResult; GxsMsgReq req; RsGxsMetaDataTemporaryMap grpMetas; grpMetas[item->grpId] = NULL; mDataStore->retrieveGxsGrpMetaData(grpMetas); RsGxsGrpMetaData* grpMeta = grpMetas[item->grpId]; if(grpMeta == NULL) { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_PG(item->PeerId(),item->grpId) << " Grp is unknown." << std::endl; #endif return; } if(!(grpMeta->mSubscribeFlags & GXS_SERV::GROUP_SUBSCRIBE_SUBSCRIBED )) { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_PG(item->PeerId(),item->grpId) << " Grp is not subscribed." << std::endl; #endif return ; } req[item->grpId] = std::vector(); mDataStore->retrieveGxsMsgMetaData(req, metaResult); std::vector& msgMetas = metaResult[item->grpId]; #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_PG(item->PeerId(),item->grpId) << " retrieving message meta data." << std::endl; #endif if(req.empty()) { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_PG(item->PeerId(),item->grpId) << " No msg meta data.." << std::endl; #endif } #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_PG(item->PeerId(),item->grpId) << " Sending MSG meta data!" << std::endl; #endif std::list itemL; uint32_t transN = locked_getTransactionId(); if(canSendMsgIds(msgMetas, *grpMeta, peer)) { std::vector::iterator vit = msgMetas.begin(); for(; vit != msgMetas.end(); ++vit) { RsGxsMsgMetaData* m = *vit; RsNxsSyncMsgItem* mItem = new RsNxsSyncMsgItem(mServType); mItem->flag = RsNxsSyncGrpItem::FLAG_RESPONSE; mItem->grpId = m->mGroupId; mItem->msgId = m->mMsgId; mItem->authorId = m->mAuthorId; mItem->PeerId(peer); mItem->transactionNumber = transN; itemL.push_back(mItem); #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_PG(item->PeerId(),item->grpId) << " sending info item for msg id " << mItem->msgId << std::endl; #endif } if(!itemL.empty()) { #ifdef NXS_NET_DEBUG_0 GXSNETDEBUG_PG(item->PeerId(),item->grpId) << " sending final msg info list of " << itemL.size() << " items." << std::endl; #endif locked_pushMsgRespFromList(itemL, peer, item->grpId,transN); } } #ifdef NXS_NET_DEBUG_0 else GXSNETDEBUG_PG(item->PeerId(),item->grpId) << " vetting forbids sending. Nothing will be sent." << itemL.size() << " items." << std::endl; #endif std::vector::iterator vit = msgMetas.begin(); // release meta resource for(vit = msgMetas.begin(); vit != msgMetas.end(); ++vit) delete *vit; } void RsGxsNetService::locked_pushMsgRespFromList(std::list& itemL, const RsPeerId& sslId, const RsGxsGroupId& grp_id,const uint32_t& transN) { #ifdef NXS_NET_DEBUG_1 GXSNETDEBUG_PG(sslId,grp_id) << "locked_pushMsgResponseFromList()" << std::endl; GXSNETDEBUG_PG(sslId,grp_id) << " nelems = " << itemL.size() << std::endl; GXSNETDEBUG_PG(sslId,grp_id) << " peerId = " << sslId << std::endl; GXSNETDEBUG_PG(sslId,grp_id) << " transN = " << transN << std::endl; #endif NxsTransaction* tr = new NxsTransaction(); tr->mItems = itemL; tr->mFlag = NxsTransaction::FLAG_STATE_WAITING_CONFIRM; RsNxsTransacItem* trItem = new RsNxsTransacItem(mServType); trItem->transactFlag = RsNxsTransacItem::FLAG_BEGIN_P1 | RsNxsTransacItem::FLAG_TYPE_MSG_LIST_RESP; trItem->nItems = itemL.size(); trItem->timestamp = 0; trItem->PeerId(sslId); trItem->transactionNumber = transN; // also make a copy for the resident transaction tr->mTransaction = new RsNxsTransacItem(*trItem); tr->mTransaction->PeerId(mOwnId); tr->mTimeOut = time(NULL) + mTransactionTimeOut; ServerMsgMap::const_iterator cit = mServerMsgUpdateMap.find(grp_id); // This time stamp is not supposed to be used on the other side. We just set it to avoid sending an uninitialiszed value. if(cit != mServerMsgUpdateMap.end()) trItem->updateTS = cit->second->msgUpdateTS; else { std::cerr << "(EE) cannot find a server TS for message of group " << grp_id << " in locked_pushMsgRespFromList. This is weird." << std::endl; trItem->updateTS = 0 ; } #ifdef NXS_NET_DEBUG_5 GXSNETDEBUG_P_ (sslId) << "Service " << std::hex << ((mServiceInfo.mServiceType >> 8)& 0xffff) << std::dec << " - sending messages response to peer " << sslId << " with " << itemL.size() << " messages " << std::endl; #endif // signal peer to prepare for transaction sendItem(trItem); locked_addTransaction(tr); } bool RsGxsNetService::canSendMsgIds(const std::vector& msgMetas, const RsGxsGrpMetaData& grpMeta, const RsPeerId& sslId) { #ifdef NXS_NET_DEBUG_4 GXSNETDEBUG_PG(sslId,grpMeta.mGroupId) << "RsGxsNetService::canSendMsgIds() CIRCLE VETTING" << std::endl; #endif // first do the simple checks uint8_t circleType = grpMeta.mCircleType; if(circleType == GXS_CIRCLE_TYPE_LOCAL) { #ifdef NXS_NET_DEBUG_4 GXSNETDEBUG_PG(sslId,grpMeta.mGroupId) << " Circle type: LOCAL => returning false" << std::endl; #endif return false; } if(circleType == GXS_CIRCLE_TYPE_PUBLIC) { #ifdef NXS_NET_DEBUG_4 GXSNETDEBUG_PG(sslId,grpMeta.mGroupId) << " Circle type: PUBLIC => returning true" << std::endl; #endif return true; } const RsGxsCircleId& circleId = grpMeta.mCircleId; if(circleType == GXS_CIRCLE_TYPE_EXTERNAL) { #ifdef NXS_NET_DEBUG_4 GXSNETDEBUG_PG(sslId,grpMeta.mGroupId) << " Circle type: EXTERNAL. Circle Id: " << circleId << std::endl; #endif if(mCircles->isLoaded(circleId)) { const RsPgpId& pgpId = mPgpUtils->getPGPId(sslId); bool res = mCircles->canSend(circleId, pgpId); #ifdef NXS_NET_DEBUG_4 GXSNETDEBUG_PG(sslId,grpMeta.mGroupId) << " Answer from circle::canSend(): " << res << std::endl; #endif return res ; } #ifdef NXS_NET_DEBUG_4 GXSNETDEBUG_PG(sslId,grpMeta.mGroupId) << " Circle info not loaded. Putting in vetting list and returning false." << std::endl; #endif std::vector toVet; std::vector::const_iterator vit = msgMetas.begin(); for(; vit != msgMetas.end(); ++vit) { const RsGxsMsgMetaData* const& meta = *vit; MsgIdCircleVet mic(meta->mMsgId, meta->mAuthorId); toVet.push_back(mic); } if(!toVet.empty()) mPendingCircleVets.push_back(new MsgCircleIdsRequestVetting(mCircles, mPgpUtils, toVet, grpMeta.mGroupId, sslId, grpMeta.mCircleId)); return false; } if(circleType == GXS_CIRCLE_TYPE_YOUREYESONLY) { #ifdef NXS_NET_DEBUG_4 GXSNETDEBUG_PG(sslId,grpMeta.mGroupId) << " Circle type: YOUR EYES ONLY" << std::endl; #endif // a non empty internal circle id means this // is the personal circle owner if(!grpMeta.mInternalCircle.isNull()) { const RsGxsCircleId& internalCircleId = grpMeta.mInternalCircle; #ifdef NXS_NET_DEBUG_4 GXSNETDEBUG_PG(sslId,grpMeta.mGroupId) << " Group internal circle: " << internalCircleId << std::endl; #endif if(mCircles->isLoaded(internalCircleId)) { const RsPgpId& pgpId = mPgpUtils->getPGPId(sslId); bool res= mCircles->canSend(internalCircleId, pgpId); #ifdef NXS_NET_DEBUG_4 GXSNETDEBUG_PG(sslId,grpMeta.mGroupId) << " Answer from circle::canSend(): " << res << std::endl; #endif return res ; } #ifdef NXS_NET_DEBUG_4 GXSNETDEBUG_PG(sslId,grpMeta.mGroupId) << " Not loaded. Putting in vetting list and returning false." << std::endl; #endif std::vector toVet; std::vector::const_iterator vit = msgMetas.begin(); for(; vit != msgMetas.end(); ++vit) { const RsGxsMsgMetaData* const& meta = *vit; MsgIdCircleVet mic(meta->mMsgId, meta->mAuthorId); toVet.push_back(mic); } if(!toVet.empty()) mPendingCircleVets.push_back(new MsgCircleIdsRequestVetting(mCircles, mPgpUtils, toVet, grpMeta.mGroupId, sslId, grpMeta.mCircleId)); return false; } else { // an empty internal circle id means this peer can only // send circle related info from peer he received it #ifdef NXS_NET_DEBUG_4 GXSNETDEBUG_PG(sslId,grpMeta.mGroupId) << " Empty internal circle: cannot only send info from Peer we received it (grpMeta.mOriginator=" << grpMeta.mOriginator << " answer is: " << (grpMeta.mOriginator == sslId) << std::endl; #endif if(grpMeta.mOriginator == sslId) return true; else return false; } } return true; } /** inherited methods **/ void RsGxsNetService::pauseSynchronisation(bool /* enabled */) { } void RsGxsNetService::setSyncAge(uint32_t /* age */) { } int RsGxsNetService::requestGrp(const std::list& grpId, const RsPeerId& peerId) { RS_STACK_MUTEX(mNxsMutex) ; mExplicitRequest[peerId].assign(grpId.begin(), grpId.end()); return 1; } void RsGxsNetService::processExplicitGroupRequests() { RS_STACK_MUTEX(mNxsMutex) ; std::map >::const_iterator cit = mExplicitRequest.begin(); for(; cit != mExplicitRequest.end(); ++cit) { const RsPeerId& peerId = cit->first; const std::list& groupIdList = cit->second; std::list grpSyncItems; std::list::const_iterator git = groupIdList.begin(); uint32_t transN = locked_getTransactionId(); for(; git != groupIdList.end(); ++git) { RsNxsSyncGrpItem* item = new RsNxsSyncGrpItem(mServType); item->grpId = *git; item->PeerId(peerId); item->flag = RsNxsSyncGrpItem::FLAG_REQUEST; item->transactionNumber = transN; grpSyncItems.push_back(item); } if(!grpSyncItems.empty()) locked_pushGrpTransactionFromList(grpSyncItems, peerId, transN); } mExplicitRequest.clear(); } int RsGxsNetService::sharePublishKey(const RsGxsGroupId& grpId,const std::set& peers) { RS_STACK_MUTEX(mNxsMutex) ; mPendingPublishKeyRecipients[grpId] = peers ; #ifdef NXS_NET_DEBUG_3 GXSNETDEBUG__G(grpId) << "RsGxsNetService::sharePublishKeys() " << (void*)this << " adding publish keys for grp " << grpId << " to sending list" << std::endl; #endif return true ; } void RsGxsNetService::sharePublishKeysPending() { RS_STACK_MUTEX(mNxsMutex) ; if(mPendingPublishKeyRecipients.empty()) return ; #ifdef NXS_NET_DEBUG_3 GXSNETDEBUG___ << "RsGxsNetService::sharePublishKeys() " << (void*)this << std::endl; #endif // get list of peers that are online std::set peersOnline; std::list toDelete; std::map >::iterator mit ; mNetMgr->getOnlineList(mServiceInfo.mServiceType, peersOnline); #ifdef NXS_NET_DEBUG_3 GXSNETDEBUG___ << " " << peersOnline.size() << " peers online." << std::endl; #endif /* send public key to peers online */ for(mit = mPendingPublishKeyRecipients.begin(); mit != mPendingPublishKeyRecipients.end(); ++mit) { // Compute the set of peers to send to. We start with this, to avoid retrieving the data for nothing. std::list recipients ; std::set offline_recipients ; for(std::set::const_iterator it(mit->second.begin());it!=mit->second.end();++it) if(peersOnline.find(*it) != peersOnline.end()) { #ifdef NXS_NET_DEBUG_3 GXSNETDEBUG_P_(*it) << " " << *it << ": online. Adding." << std::endl; #endif recipients.push_back(*it) ; } else { #ifdef NXS_NET_DEBUG_3 GXSNETDEBUG_P_(*it) << " " << *it << ": offline. Keeping for next try." << std::endl; #endif offline_recipients.insert(*it) ; } // If empty, skip if(recipients.empty()) { #ifdef NXS_NET_DEBUG_3 GXSNETDEBUG___ << " No recipients online. Skipping." << std::endl; #endif continue ; } // Get the meta data for this group Id // RsGxsMetaDataTemporaryMap grpMetaMap; grpMetaMap[mit->first] = NULL; mDataStore->retrieveGxsGrpMetaData(grpMetaMap); // Find the publish keys in the retrieved info RsGxsGrpMetaData *grpMeta = grpMetaMap[mit->first] ; if(grpMeta == NULL) { std::cerr << "(EE) RsGxsNetService::sharePublishKeys() Publish keys cannot be found for group " << mit->first << std::endl; continue ; } const RsTlvSecurityKeySet& keys = grpMeta->keys; std::map::const_iterator kit = keys.keys.begin(), kit_end = keys.keys.end(); bool publish_key_found = false; RsTlvSecurityKey publishKey ; for(; kit != kit_end && !publish_key_found; ++kit) { publish_key_found = (kit->second.keyFlags == (RSTLV_KEY_DISTRIB_PUBLISH | RSTLV_KEY_TYPE_FULL)); publishKey = kit->second ; } if(!publish_key_found) { std::cerr << "(EE) no publish key in group " << mit->first << ". Cannot share!" << std::endl; continue ; } #ifdef NXS_NET_DEBUG_3 GXSNETDEBUG__G(grpMeta->mGroupId) << " using publish key ID=" << publishKey.keyId << ", flags=" << publishKey.keyFlags << std::endl; #endif for(std::list::const_iterator it(recipients.begin());it!=recipients.end();++it) { /* Create publish key sharing item */ RsNxsGroupPublishKeyItem *publishKeyItem = new RsNxsGroupPublishKeyItem(mServType); publishKeyItem->clear(); publishKeyItem->grpId = mit->first; publishKeyItem->key = publishKey ; publishKeyItem->PeerId(*it); sendItem(publishKeyItem); #ifdef NXS_NET_DEBUG_3 GXSNETDEBUG_PG(*it,grpMeta->mGroupId) << " sent key item to " << *it << std::endl; #endif } mit->second = offline_recipients ; // If given peers have all received key(s) then stop sending for group if(offline_recipients.empty()) toDelete.push_back(mit->first); } // delete pending peer list which are done with for(std::list::const_iterator lit = toDelete.begin(); lit != toDelete.end(); ++lit) mPendingPublishKeyRecipients.erase(*lit); } void RsGxsNetService::handleRecvPublishKeys(RsNxsGroupPublishKeyItem *item) { #ifdef NXS_NET_DEBUG_3 GXSNETDEBUG_PG(item->PeerId(),item->grpId) << "RsGxsNetService::sharePublishKeys() " << std::endl; #endif if (!item) return; RS_STACK_MUTEX(mNxsMutex) ; #ifdef NXS_NET_DEBUG_3 GXSNETDEBUG_PG(item->PeerId(),item->grpId) << " PeerId : " << item->PeerId() << std::endl; GXSNETDEBUG_PG(item->PeerId(),item->grpId) << " GrpId: " << item->grpId << std::endl; GXSNETDEBUG_PG(item->PeerId(),item->grpId) << " Got key Item: " << item->key.keyId << std::endl; #endif // Get the meta data for this group Id // RsGxsMetaDataTemporaryMap grpMetaMap; grpMetaMap[item->grpId] = NULL; mDataStore->retrieveGxsGrpMetaData(grpMetaMap); // update the publish keys in this group meta info RsGxsGrpMetaData *grpMeta = grpMetaMap[item->grpId] ; // Check that the keys correspond, and that FULL keys are supplied, etc. #ifdef NXS_NET_DEBUG_3 GXSNETDEBUG_PG(item->PeerId(),item->grpId)<< " Key received: " << std::endl; #endif bool admin = (item->key.keyFlags & RSTLV_KEY_DISTRIB_ADMIN) && (item->key.keyFlags & RSTLV_KEY_TYPE_FULL) ; bool publi = (item->key.keyFlags & RSTLV_KEY_DISTRIB_PUBLISH) && (item->key.keyFlags & RSTLV_KEY_TYPE_FULL) ; #ifdef NXS_NET_DEBUG_3 GXSNETDEBUG_PG(item->PeerId(),item->grpId)<< " Key id = " << item->key.keyId << " admin=" << admin << ", publish=" << publi << " ts=" << item->key.endTS << std::endl; #endif if(!(!admin && publi)) { std::cerr << " Key is not a publish private key. Discarding!" << std::endl; return ; } // Also check that we don't already have full keys for that group. std::map::iterator it = grpMeta->keys.keys.find(item->key.keyId) ; if(it == grpMeta->keys.keys.end()) { std::cerr << " (EE) Key not found in known group keys. This is an inconsistency." << std::endl; return ; } if((it->second.keyFlags & RSTLV_KEY_DISTRIB_PUBLISH) && (it->second.keyFlags & RSTLV_KEY_TYPE_FULL)) { #ifdef NXS_NET_DEBUG_3 GXSNETDEBUG_PG(item->PeerId(),item->grpId)<< " (EE) Publish key already present in database. Discarding message." << std::endl; #endif return ; } // Store/update the info. it->second = item->key ; bool ret = mDataStore->updateGroupKeys(item->grpId,grpMeta->keys, grpMeta->mSubscribeFlags | GXS_SERV::GROUP_SUBSCRIBE_PUBLISH) ; if(ret) { #ifdef NXS_NET_DEBUG GXSNETDEBUG_PG(item->PeerId(),item->grpId)<< " updated database with new publish keys." << std::endl; #endif mObserver->notifyReceivePublishKey(item->grpId); } else { std::cerr << "(EE) could not update database. Something went wrong." << std::endl; } }