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Code Issues Releases Activity

Survive client<->server ABI mismatch

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This commit is contained in:
Vadim Markovtsev
2016-10-02 22:41:57 +02:00
parent a15b8f4c99
commit eac5aab396
7 changed files with 27 additions and 13 deletions
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12
client/Client.cpp
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@@ -653,20 +653,26 @@ void CClient::serialize(CISer & h, const int version, const std::set<PlayerColor
void CClient::handlePack( CPack * pack )
{
if (pack == nullptr)
{
logNetwork->errorStream() << "Dropping nullptr CPack! You should check whether client and server ABI matches.";
return;
}
CBaseForCLApply *apply = applier->apps[typeList.getTypeID(pack)]; //find the applier
if(apply)
{
boost::unique_lock<boost::recursive_mutex> guiLock(*LOCPLINT->pim);
apply->applyOnClBefore(this,pack);
apply->applyOnClBefore(this, pack);
logNetwork->traceStream() << "\tMade first apply on cl";
gs->apply(pack);
logNetwork->traceStream() << "\tApplied on gs";
apply->applyOnClAfter(this,pack);
apply->applyOnClAfter(this, pack);
logNetwork->traceStream() << "\tMade second apply on cl";
}
else
{
logNetwork->errorStream() << "Message cannot be applied, cannot find applier! TypeID " << typeList.getTypeID(pack);
logNetwork->errorStream() << "Message cannot be applied, cannot find applier! type "
<< pack->type << " - " << typeList.getTypeInfo(pack)->name();
}
delete pack;
}

2
lib/Connection.cpp
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@@ -225,7 +225,7 @@ CPack * CConnection::retreivePack()
boost::unique_lock<boost::mutex> lock(*rmx);
logNetwork->traceStream() << "Listening... ";
iser >> ret;
logNetwork->traceStream() << "\treceived server message of type " << typeid(*ret).name() << ", data: " << ret;
logNetwork->traceStream() << "\treceived server message of type " << (ret? typeid(*ret).name() : "nullptr") << ", data: " << ret;
return ret;
}

11
lib/Connection.h
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@@ -1107,7 +1107,7 @@ public:
};
bool saving;
std::map<ui16,CBasicPointerLoader*> loaders; // typeID => CPointerSaver<serializer,type>
std::map<ui16, CBasicPointerLoader*> loaders; // typeID => CPointerSaver<serializer,type>
si32 fileVersion;
bool reverseEndianess; //if source has different endianness than us, we reverse bytes
@@ -1308,7 +1308,14 @@ public:
}
else
{
auto typeInfo = loaders[tid]->loadPtr(*this,&data, pid);
auto loader = loaders[tid];
if (loader == nullptr)
{
logGlobal->errorStream() << "loadPointerHlp " << tid << " " << pid << " - no loader exists";
data = nullptr;
return;
}
auto typeInfo = loader->loadPtr(*this, &data, pid);
data = reinterpret_cast<T>(typeList.castRaw((void*)data, typeInfo, &typeid(typename boost::remove_const<typename boost::remove_pointer<T>::type>::type)));
}
}

2
lib/NetPacks.h
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@@ -2188,7 +2188,7 @@ struct CenterView : public CPackForClient//515
struct CPackForSelectionScreen : public CPack
{
void apply(CSelectionScreen *selScreen){}; //that functions are implemented in CPreGame.cpp
void apply(CSelectionScreen *selScreen) {} // implemented in CPreGame.cpp
};
class CPregamePackToPropagate : public CPackForSelectionScreen

7
lib/NetPacksBase.h
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@@ -29,12 +29,13 @@ struct DLL_LINKAGE CPack
{
ui16 type;
CPack(){};
virtual ~CPack(){};
ui16 getType() const{return type;}
CPack() {};
virtual ~CPack() {};
ui16 getType() const { return type; }
template <typename Handler> void serialize(Handler &h, const int version)
{
logNetwork->errorStream() << "CPack serialized... this should not happen!";
assert(false && "CPack serialized");
}
void applyGs(CGameState *gs) { }
virtual std::string toString() const { return boost::str(boost::format("{CPack: type '%d'}") % type); }

2
lib/NetPacksLib.cpp
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@@ -34,7 +34,7 @@
std::ostream & operator<<(std::ostream & out, const CPack * pack)
{
return out << pack->toString();
return out << (pack? pack->toString() : "<nullptr>");
}
DLL_LINKAGE void SetResource::applyGs( CGameState *gs )

4
server/CGameHandler.cpp
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@@ -965,9 +965,9 @@ void CGameHandler::handleConnection(std::set<PlayerColor> players, CConnection &
}
else if(apply)
{
const bool result = apply->applyOnGH(this,&c,pack, player);
const bool result = apply->applyOnGH(this, &c, pack, player);
if(result)
logGlobal->trace("Message successfully applied!");
logGlobal->traceStream() << "Message " << typeid(*pack).name() << " successfully applied!";
else
complain((boost::format("Got false in applying %s... that request must have been fishy!")
% typeid(*pack).name()).str());