void CKadHandler::HandleRouteReq(const CVariant& RouteReq, CKadNode* pNode, CComChannel* pChannel)
{
if(GetParent<CKademlia>()->Cfg()->GetBool("DebugRU"))
LogLine(LOG_DEBUG, L"Recived 'Route Resuest' from %s", pNode->GetID().ToHex().c_str());
CVariant RouteRes(CVariant::EMap);
SKadData* pData = pChannel->GetData<SKadData>();
CPointer<CKadRelay> pRelay = pData->pLookup->Cast<CKadRelay>();
if(!pRelay)
{
if(!RouteReq.Has("TID")) // this is optional it is not send on a refresn
throw CException(LOG_ERROR, L"Invalid Lookup Request");
if(pData->pLookup)
throw CException(LOG_ERROR, L"Recived Route Resuest for a lookup that is not a CKadRelay");
CLookupManager* pLookupManager = GetParent<CKademlia>()->Manager();
pRelay = pLookupManager->GetRelayEx(RouteReq["EID"], RouteReq["TID"]); // find already existing relay for this Entity and target combination
//ASSERT(pRelay == pLookupManager->GetLookup(RouteReq["LID"])->Cast<CKadRelay>()); // lookup ID should be consistent
if(!pRelay)
{
pRelay = new CKadRelay(RouteReq["TID"], pLookupManager);
if(pRelay->InitRelay(RouteReq)) // if false it means the lookup is invalid
{
pRelay->SetHopLimit(RouteReq.Get("JMPS"));
pRelay->SetJumpCount(RouteReq.Get("HOPS"));
pRelay->SetBrancheCount(RouteReq.Get("BRCH"));
pRelay->SetLookupID(RouteReq["LID"]);
pLookupManager->StartLookup(pRelay.Obj());
if(RouteReq.Has("TRACE"))
pRelay->EnableTrace();
}
}
// For this cahnnel the relay was new, setup BC
pData->pLookup = CPointer<CKadLookup>(pRelay, true); // weak pointer
pChannel->AddUpLimit(pData->pLookup->GetUpLimit());
pChannel->AddDownLimit(pData->pLookup->GetDownLimit());
}
string Error = pRelay->AddDownLink(pNode, pChannel); // add or update
if(!Error.empty())
RouteRes["ERR"] = Error;
if(GetParent<CKademlia>()->Cfg()->GetBool("DebugRU"))
LogLine(LOG_DEBUG, L"Sending 'Route Response' to %s", pNode->GetID().ToHex().c_str());
pChannel->QueuePacket(KAD_ROUTE_RESPONSE, RouteRes);
}
CVariant CKadOperation::AddLoadRes(const CVariant& LoadRes, CKadNode* pNode)
{
SOpProgress* pProgress = GetProgress(pNode);
CVariant FilteredRes = LoadRes.Clone(false); // Make a Shellow Copy
const CVariant& LoadedList = LoadRes["RES"];
CVariant FilteredList;
for(uint32 i=0; i < LoadedList.Count(); i++)
{
CVariant Loaded = LoadedList.At(i).Clone(false); // Make a Shellow Copy
const CVariant& XID = Loaded["XID"];
// Counting
if(pProgress) // might be NULL if we filter our own index response right now
{
SOpStatus &Status = pProgress->Loads[XID];
Status.Results++;
if(!Loaded.Get("MORE"))
Status.Done = true; // this marks that no more results are to be expected form this node
}
SOpStatus* pStatus = &m_LoadMap[XID].Status;
pStatus->Results++;
if(!pStatus->Done)
pStatus->Done = IsDone(SOpProgress::GetLoads, XID);
if(!pStatus->Done)
Loaded.Insert("MORE", true);
else
Loaded.Remove("MORE");
//
if(Loaded.Has("ERR"))
{
FilteredList.Append(Loaded);
continue;
}
// Filtering
CVariant UniquePayloads;
const CVariant& Payloads = Loaded["PLD"];
for(uint32 j=0; j < Payloads.Count(); j++)
{
const CVariant& Payload = Payloads.At(j);
if(m_LoadFilter[XID].insert(Payload["DATA"].GetFP()).second)
UniquePayloads.Append(Payload);
}
// Note: we must add this even if UniquePayloads is empty or else we will misscount replys
CVariant NewLoaded;
NewLoaded["XID"] = XID;
NewLoaded["PLD"] = UniquePayloads;
FilteredList.Append(NewLoaded);
//
}
FilteredRes.Insert("RES", FilteredList);
return FilteredRes;
}
bool CKadScript::LoadData(const wstring& Path)
{
CVariant Data;
if(!ReadFile(Path, Data))
return false;
try
{
m_LastUsed = Data["LastUsed"].To<uint64>();
if(!m_LastUsed)
m_LastUsed = GetTime();
m_Data->Set(Data["Data"]);
if(Data.Has("KEY"))
{
CVariant SecretKey = Data["KEY"];
if(SecretKey.Decrypt(GetParent<CKademlia>()->Root()->GetID().GetPrivateKey()))
{
m_SecretKey = new CAbstractKey;
if(!m_SecretKey->SetKey(SecretKey.GetData(), SecretKey.GetSize()))
m_SecretKey = NULL;
}
}
m_Authentication = Data.Get("AUTH");
}
catch(const CException&)
{
return false;
}
return true;
}
void CKadHandler::HandleNodeReq(const CVariant& NodeReq, CKadNode* pNode, CComChannel* pChannel)
{
if(GetParent<CKademlia>()->Cfg()->GetBool("DebugRT"))
LogLine(LOG_DEBUG, L"Recived 'Node Resuest' to %s", pNode->GetID().ToHex().c_str());
CVariant NodeRes;
uint32 uDesiredCount = NodeReq["RCT"];
if(uDesiredCount == 0)
throw CException(LOG_ERROR, L"node requested 0 nodes");
int iMaxState = NodeReq.Get("MNC", NODE_2ND_CLASS);
NodeMap Nodes;
if(!NodeReq.Has("TID"))
GetParent<CKademlia>()->Root()->GetBootstrapNodes(GetParent<CKademlia>()->Root()->GetID(), Nodes, uDesiredCount, pChannel->GetAddress().GetProtocol(), iMaxState);
else
GetParent<CKademlia>()->Root()->GetClosestNodes(NodeReq["TID"], Nodes, uDesiredCount, pChannel->GetAddress().GetProtocol(), iMaxState);
CVariant List;
for(NodeMap::iterator I = Nodes.begin(); I != Nodes.end(); I++)
List.Append(I->second->Store());
NodeRes["LIST"] = List;
if(GetParent<CKademlia>()->Cfg()->GetBool("DebugRT"))
LogLine(LOG_DEBUG, L"Sending 'Node Response' to %s", pNode->GetID().ToHex().c_str());
pChannel->QueuePacket(KAD_NODE_RESPONSE, NodeRes);
}
void CKadHandler::HandleRouteRes(const CVariant& RouteRes, CKadNode* pNode, CComChannel* pChannel)
{
if(GetParent<CKademlia>()->Cfg()->GetBool("DebugRU"))
LogLine(LOG_DEBUG, L"Recived 'Route Response' from %s", pNode->GetID().ToHex().c_str());
SKadData* pData = pChannel->GetData<SKadData>();
CKadRelay* pRelay = pData->pLookup->Cast<CKadRelay>();
if(!pRelay)
throw CException(LOG_ERROR, L"Recived Route Response for a lookup that is not a CKadRelay");
// Note: this is for trace only, it does not have any deeper purpose
if(pRelay->IsTraced())
{
CVariant Trace = RouteRes.Get("TRACE").Clone();
Trace.Append(pNode->GetID());
if(!pRelay->Inherits("CKadRoute")) // if its just a relay we have to relay the trace back
{
CVariant RouteRel;
RouteRel["TID"] = RouteRes["TID"]; // pRelay->GetID()
RouteRel["TRACE"] = Trace;
if(CFrameRelay* pDownLink = pRelay->GetDownLink())
{
CFrameRelay::TRelayMap& DownNodes = pDownLink->GetNodes();
for(CFrameRelay::TRelayMap::iterator I = DownNodes.begin(); I != DownNodes.end(); I++)
{
if(I->first.pChannel->IsConnected())
{
if(GetParent<CKademlia>()->Cfg()->GetBool("DebugLU"))
LogLine(LOG_DEBUG, L"Relaying 'Route Response' from %s to %s", pNode->GetID().ToHex().c_str(), I->first.pNode->GetID().ToHex().c_str());
I->first.pChannel->QueuePacket(KAD_ROUTE_RESPONSE, RouteRel);
}
}
}
}
else
pRelay->RecivedTraceResults(Trace);
}
if(RouteRes.Has("TRACE")) // if this is set its a pro forma trace response ignore it
return;
pRelay->UpLinkResponse(pNode, pChannel, RouteRes.Get("ERR"));
}
CVariant CKadOperation::AddStoreRes(const CVariant& StoreRes, CKadNode* pNode)
{
SOpProgress* pProgress = GetProgress(pNode);
CVariant FilteredRes = StoreRes.Clone(false); // Make a Shellow Copy
const CVariant& StoredList = StoreRes["RES"];
CVariant FilteredList;
for(uint32 i=0; i < StoredList.Count(); i++)
{
CVariant Stored = StoredList.At(i).Clone(false); // Make a Shellow Copy
const CVariant& XID = Stored["XID"];
// Counting
if(pProgress) // might be NULL if we filter our own index response right now
{
SOpStatus &Status = pProgress->Stores[XID];
Status.Results++;
if(!Stored.Get("MORE"))
Status.Done = true; // this marks that no more results are to be expected form this node
}
SOpStatus* pStatus = &m_StoreMap[XID].Status;
pStatus->Results++;
if(!pStatus->Done)
pStatus->Done = IsDone(SOpProgress::GetStores, XID);
if(!pStatus->Done)
Stored.Insert("MORE", true);
else
Stored.Remove("MORE");
//
//m_StoredCounter[Stored["XID"]].push_back(Stored.Get("EXP", 0)); // on error there is no EXP
FilteredList.Append(Stored);
}
FilteredRes.Insert("RES", FilteredList);
return FilteredRes;
}
CVariant CKadOperation::AddCallRes(const CVariant& CallRes, CKadNode* pNode)
{
SOpProgress* pProgress = GetProgress(pNode);
CVariant FilteredRes = CallRes.Clone(false); // Make a Shellow Copy
const CVariant& Results = CallRes["RET"];
CVariant Filtered;
for(uint32 i=0; i < Results.Count(); i++)
{
CVariant Result = Results.At(i).Clone(false); // Make a Shellow Copy
const CVariant& XID = Result["XID"];
// this checks if this particular response is the last and and if this node is done
if(pProgress) // might be NULL if we filter our own index response right now
{
SOpStatus &Status = pProgress->Calls[XID];
Status.Results++;
if(!Result.Get("MORE"))
Status.Done = true; // this marks that no more results are to be expected form this node
}
SOpStatus* pStatus = NULL;
TCallOpMap::iterator I = m_CallMap.find(XID);
if(I != m_CallMap.end())
{
pStatus = &I->second.Status;
pStatus->Results++; // count the response even if it gets filtered lateron
if(!pStatus->Done)
pStatus->Done = IsDone(SOpProgress::GetCalls, XID);
}
if(m_pOperator)
{
CKadOperator::TRequestMap& ResuestMap = m_pOperator->GetRequests();
CKadOperator::TRequestMap::iterator I = ResuestMap.find(XID);
if(I != ResuestMap.end()) // this should not fail
{
SOpStatus* pAuxStatus = &I->second.Status;
pAuxStatus->Results++; // count the response even if it gets filtered lateron
if(!pAuxStatus->Done)
pAuxStatus->Done = IsDone(SOpProgress::GetCalls, XID);
}
}
if(!Result.Has("ERR"))
{
if(m_pOperator && m_pOperator->IsValid())
{
try
{
if(m_pOperator->AddCallRes(Result["RET"], XID))
continue; // intercepted response - Note: if we add a response to this request now it wil be marked as no more results if thats so
}
catch(const CJSException& Exception)
{
LogReport(Exception.GetFlag(), Exception.GetLine(), Exception.GetError());
}
}
}
//else
// LogLine(LOG_ERROR | LOG_DEBUG, L"Got Execution Error %s", Result["ERR"].To<wstring>().c_str());
// check if this is a call we issued, that is one not present in the call map, in that case its never to be relayed
if(pStatus)
{
// UpdateMore sets the "MORE" flag on the packet we relay further down to the source, and checks if we considder this request done
if(!pStatus->Done)
Result.Insert("MORE", true);
else
Result.Remove("MORE");
Filtered.Append(Result);
}
}
if(m_pOperator) // add new result to the filtered list
Filtered.Merge(m_pOperator->GetResponses());
FilteredRes.Insert("RET", Filtered);
return FilteredRes;
}
bool CKadHandler::ProcessPacket(const string& Name, const CVariant& Packet, CComChannel* pChannel)
{
CKadNode* pNode = NULL;
try
{
// Process cahnnel initialisation
if(Name == KAD_INIT)
{
if(GetParent<CKademlia>()->Cfg()->GetBool("DebugTL"))
LogLine(LOG_DEBUG, L"Recived 'Transaction Init' from %s", CUInt128(Packet["NID"]).ToHex().c_str());
bool bAdded = false;
SKadData* pData = pChannel->GetData<SKadData>(&bAdded);
if(!pData->pNode)
{
pData->pNode = GetParent<CKademlia>()->Root()->GetNode(Packet["NID"]);
if(!pData->pNode)
{
pData->pNode = new CKadNode(GetParent<CKademlia>()->Root());
pData->pNode->SetID(Packet["NID"]);
GetParent<CKademlia>()->Root()->AddNode(pData->pNode);
}
pChannel->AddUpLimit(pData->pNode->GetUpLimit());
pChannel->AddDownLimit(pData->pNode->GetDownLimit());
}
else if(pData->pNode->GetID() != Packet["NID"])
throw CException(LOG_ERROR, L"KadNode Miss Match"); // this should never ever happen!
pData->pNode->SetProtocol(Packet["PROT"]);
pData->pNode->SetVersion(Packet.Get("VER")); // Version is optional
pData->Connected = true;
if(bAdded) // if it was added it means its an incomming connectziona dnwe have to answer
{
SendInit(pData->pNode, pChannel);
pData->pNode->UpdateAddress(pChannel->GetAddress()); // If this is incomming update addresses
}
return true;
}
else
{
if(SKadData* pData = pChannel->GetData<SKadData>())
pNode = pData->pNode;
if(!pNode || !pNode->GetParent())
throw CException(LOG_WARNING, L"Kad Packet Recived %S on not initialized channel", Name.c_str());
}
if(Name.compare(KAD_CRYPTO_REQUEST) == 0) HandleCryptoRequest(Packet, pNode, pChannel);
else if(Name.compare(KAD_CRYPTO_RESPONSE) == 0) HandleCryptoResponse(Packet, pNode, pChannel);
else if(Name.compare(KAD_HELLO_REQUEST) == 0) HandleHello(Packet, pNode, pChannel, true);
else if(Name.compare(KAD_HELLO_RESPONSE) == 0) HandleHello(Packet, pNode, pChannel, false);
else if(Name.compare(KAD_NODE_REQUEST) == 0) HandleNodeReq(Packet, pNode, pChannel);
else if(Name.compare(KAD_NODE_RESPONSE) == 0) HandleNodeRes(Packet, pNode, pChannel);
// Lookup Handling
else if(Name.compare(KAD_PROXY_REQUEST) == 0) HandleProxyReq(Packet, pNode, pChannel);
else if(Name.compare(KAD_PROXY_RESPONSE) == 0) HandleProxyRes(Packet, pNode, pChannel);
else if(Name.compare(KAD_CODE_REQUEST) == 0) HandleCodeReq(Packet, pNode, pChannel);
else if(Name.compare(KAD_CODE_RESPONSE) == 0) HandleCodeRes(Packet, pNode, pChannel);
else if(Name.compare(KAD_LOOKUP_MESSAGE) == 0) HandleMessagePkt(Packet, pNode, pChannel);
else if(Name.compare(KAD_EXECUTE_REQUEST) == 0) HandleExecuteReq(Packet, pNode, pChannel);
else if(Name.compare(KAD_EXECUTE_RESPONSE) == 0) HandleExecuteRes(Packet, pNode, pChannel);
else if(Name.compare(KAD_STORE_REQUEST) == 0) HandleStoreReq(Packet, pNode, pChannel);
else if(Name.compare(KAD_STORE_RESPONSE) == 0) HandleStoreRes(Packet, pNode, pChannel);
else if(Name.compare(KAD_LOAD_REQUEST) == 0) HandleLoadReq(Packet, pNode, pChannel);
else if(Name.compare(KAD_LOAD_RESPONSE) == 0) HandleLoadRes(Packet, pNode, pChannel);
else if(Name.compare(KAD_LOOKUP_REPORT) == 0) HandleReportPkt(Packet, pNode, pChannel);
// Routing Handling
else if(Name.compare(KAD_ROUTE_REQUEST) == 0) HandleRouteReq(Packet, pNode, pChannel);
else if(Name.compare(KAD_ROUTE_RESPONSE) == 0) HandleRouteRes(Packet, pNode, pChannel);
else if(Name.compare(KAD_RELAY_REQUEST) == 0) HandleRelayReq(Packet, pNode, pChannel);
else if(Name.compare(KAD_RELAY_RESPONSE) == 0) HandleRelayRes(Packet, pNode, pChannel);
else if(Name.compare(KAD_RELAY_RETURN) == 0) HandleRelayRet(Packet, pNode, pChannel);
else if(Name.compare(KAD_RELAY_CONTROL) == 0) HandleRelayCtrl(Packet, pNode, pChannel);
else if(Name.compare(KAD_RELAY_STATUS) == 0) HandleRelayStat(Packet, pNode, pChannel);
else
throw CException(LOG_WARNING, L"Unsupported Kad Packet Recived %S", Name.c_str());
}
catch(const CException& Exception)
{
LogLine(Exception.GetFlag(), L"Packet \'%S\' Error: '%s' from: %s (%s)", Name.c_str(), Exception.GetLine().c_str(), pNode ? pNode->GetID().ToHex().c_str() : L"Unknown", pChannel->GetAddress().ToString().c_str());
pChannel->Close();
return false;
}
return true;
}
