bool PyAddress::Decode(PyRep *&in_object) {
PyRep *base = in_object;
in_object = NULL;
if(!base->IsObject()) {
codelog(NET__PACKET_ERROR, "Invalid element type, expected object");
PyDecRef(base);
return false;
}
PyObject *obj = (PyObject *) base;
//do we care about the object type? should be "macho.MachoAddress"
if(!obj->arguments()->IsTuple()) {
codelog(NET__PACKET_ERROR, "Invalid argument type, expected tuple");
PyDecRef(base);
return false;
}
PyTuple *args = (PyTuple *) obj->arguments();
if(args->items.size() < 3) {
codelog(NET__PACKET_ERROR, "Not enough elements in address tuple: %lu", args->items.size());
args->Dump(NET__PACKET_ERROR, " ");
PyDecRef(base);
return false;
}
//decode the address type.
if(!args->items[0]->IsInt()) {
codelog(NET__PACKET_ERROR, "Wrong type on address type element (0)");
args->items[0]->Dump(NET__PACKET_ERROR, " ");
PyDecRef(base);
return false;
}
PyInt *typei = (PyInt *) args->items[0];
switch(typei->value()) {
case Any: {
if(args->items.size() != 3) {
codelog(NET__PACKET_ERROR, "Invalid number of elements in Any address tuple: %lu", args->items.size());
PyDecRef(base);
return false;
}
type = Any;
if(!_DecodeService(args->items[1])
|| !_DecodeCallID(args->items[2])) {
PyDecRef(base);
return false;
}
break;
}
case Node: {
if(args->items.size() != 4) {
codelog(NET__PACKET_ERROR, "Invalid number of elements in Node address tuple: %lu", args->items.size());
PyDecRef(base);
return false;
}
type = Node;
if(!_DecodeTypeID(args->items[1])
|| !_DecodeService(args->items[2])
|| !_DecodeCallID(args->items[3])) {
PyDecRef(base);
return false;
}
break;
}
case Client: {
if(args->items.size() != 4) {
codelog(NET__PACKET_ERROR, "Invalid number of elements in Client address tuple: %lu", args->items.size());
PyDecRef(base);
return false;
}
type = Client;
if(!_DecodeTypeID(args->items[1])
|| !_DecodeCallID(args->items[2])
|| !_DecodeService(args->items[3])) {
PyDecRef(base);
return false;
}
break;
}
case Broadcast: {
if(args->items.size() != 4) {
codelog(NET__PACKET_ERROR, "Invalid number of elements in Broadcast address tuple: %lu", args->items.size());
PyDecRef(base);
return false;
}
type = Broadcast;
if(!args->items[1]->IsString()) {
codelog(NET__PACKET_ERROR, "Invalid type %s for brodcastID", args->items[1]->TypeString());
PyDecRef(base);
return false;
} else if(!args->items[3]->IsString()) {
codelog(NET__PACKET_ERROR, "Invalid type %s for idtype", args->items[3]->TypeString());
PyDecRef(base);
return false;
}
PyString *bid = (PyString *) args->items[1];
PyString *idt = (PyString *) args->items[3];
service = bid->content();
bcast_idtype = idt->content();
//items[2] is either a list or a tuple.
/*
//PyList *nclist = (PyList *) args->items[2];
if(!nclist->items.empty()) {
printf("Not decoding narrowcast list:");
nclist->Dump(NET__PACKET_ERROR, " ");
}*/
break;
}
default:
codelog(NET__PACKET_ERROR, "Unknown address type: %c", typei->value() );
PyDecRef(base);
return false;
}
PyDecRef(base);
return true;
}
bool PyCachedObjectDecoder::Decode(PySubStream **in_ss)
{
PySubStream *ss = *in_ss; //consume
*in_ss = NULL;
PySafeDecRef( cache );
PySafeDecRef( objectID );
ss->DecodeData();
if(ss->decoded() == NULL) {
sLog.Error("PyCachedObjectDecoder","Unable to decode initial stream for PycachedObject");
PyDecRef( ss );
return false;
}
if(!ss->decoded()->IsObject()) {
sLog.Error("PyCachedObjectDecoder","Cache substream does not contain an object: %s", ss->decoded()->TypeString());
PyDecRef( ss );
return false;
}
PyObject *po = (PyObject *) ss->decoded();
//TODO: could check type string, dont care... (should be objectCaching.CachedObject)
if(!po->arguments()->IsTuple()) {
sLog.Error("PyCachedObjectDecoder","Cache object's args is not a tuple: %s", po->arguments()->TypeString());
PyDecRef( ss );
return false;
}
PyTuple *args = (PyTuple *) po->arguments();
if(args->items.size() != 7) {
sLog.Error("PyCachedObjectDecoder","Cache object's args tuple has %lu elements instead of 7", args->items.size());
PyDecRef( ss );
return false;
}
if(!args->items[0]->IsTuple()) {
sLog.Error("PyCachedObjectDecoder","Cache object's arg %d is not a Tuple: %s", 0, args->items[0]->TypeString());
PyDecRef( ss );
return false;
}
//ignore unknown [1]
/*if(!args->items[1]->IsInt()) {
_log(CLIENT__ERROR, "Cache object's arg %d is not a None: %s", 1, args->items[1]->TypeString());
PyDecRef( ss );
return false;
}*/
if(!args->items[2]->IsInt()) {
sLog.Error("PyCachedObjectDecoder","Cache object's arg %d is not an Integer: %s", 2, args->items[2]->TypeString());
PyDecRef( ss );
return false;
}
if(!args->items[3]->IsInt()) {
sLog.Error("PyCachedObjectDecoder","Cache object's arg %d is not an Integer: %s", 3, args->items[3]->TypeString());
PyDecRef( ss );
return false;
}
if(!args->items[5]->IsInt()) {
sLog.Error("PyCachedObjectDecoder","Cache object's arg %d is not a : %s", 5, args->items[5]->TypeString());
PyDecRef( ss );
return false;
}
PyTuple *objVt = (PyTuple *) args->items[0];
if(!objVt->items[0]->IsInt()) {
sLog.Error("PyCachedObjectDecoder","Cache object's version tuple %d is not an Integer: %s", 0, objVt->items[0]->TypeString());
PyDecRef( ss );
return false;
}
if(!objVt->items[1]->IsInt()) {
sLog.Error("PyCachedObjectDecoder","Cache object's version tuple %d is not an Integer: %s", 1, objVt->items[1]->TypeString());
PyDecRef( ss );
return false;
}
PyInt *nodeidr = (PyInt *) args->items[2];
PyInt *sharedr = (PyInt *) args->items[3];
PyInt *compressedr = (PyInt *) args->items[5];
PyInt *timer = (PyInt *) objVt->items[0];
PyInt *versionr = (PyInt *) objVt->items[1];
timestamp = timer->value();
version = versionr->value();
nodeID = nodeidr->value();
shared = ( sharedr->value() != 0 );
compressed = ( compressedr->value() != 0 );
//content (do this as the last thing, since its the heavy lifting):
if(args->items[4]->IsSubStream()) {
cache = (PySubStream *) args->items[4];
//take it
args->items[4] = NULL;
} else if(args->items[4]->IsBuffer()) {
//this is a data buffer, likely compressed.
PyBuffer* buf = args->items[4]->AsBuffer();
PyIncRef( buf );
cache = new PySubStream( buf );
} else if(args->items[4]->IsString()) {
//this is a data buffer, likely compressed, not sure why it comes through as a string...
PyString* str = args->items[4]->AsString();
cache = new PySubStream( new PyBuffer( *str ) );
} else {
sLog.Error("PyCachedObjectMgr", "Cache object's arg %d is not a substream or buffer: %s", 4, args->items[4]->TypeString());
PyDecRef( ss );
return false;
}
objectID = args->items[6]; PyIncRef(objectID);
PyDecRef( ss );
return true;
}
bool PyPacket::Decode(PyRep **in_packet)
{
PyRep *packet = *in_packet; //consume
*in_packet = NULL;
PySafeDecRef(payload);
PySafeDecRef(named_payload);
if(packet->IsChecksumedStream())
{
PyChecksumedStream* cs = packet->AsChecksumedStream();
//TODO: check cs->checksum
packet = cs->stream();
PyIncRef( packet );
PyDecRef( cs );
}
//Dragon nuance... it gets wrapped again
if(packet->IsSubStream())
{
PySubStream* ss = packet->AsSubStream();
ss->DecodeData();
if(ss->decoded() == NULL)
{
codelog(NET__PACKET_ERROR, "failed: unable to decode initial packet substream.");
PyDecRef(packet);
return false;
}
packet = ss->decoded();
PyIncRef( packet );
PyDecRef( ss );
}
if(!packet->IsObject())
{
codelog(NET__PACKET_ERROR, "failed: packet body is not an 'Object': %s", packet->TypeString());
PyDecRef(packet);
return false;
}
PyObject *packeto = (PyObject *) packet;
type_string = packeto->type()->content();
if(!packeto->arguments()->IsTuple())
{
codelog(NET__PACKET_ERROR, "failed: packet body does not contain a tuple");
PyDecRef(packet);
return false;
}
PyTuple *tuple = (PyTuple *) packeto->arguments();
if(tuple->items.size() != 7)
{
codelog(NET__PACKET_ERROR, "failed: packet body does not contain a tuple of length 7");
PyDecRef(packet);
return false;
}
if(!tuple->items[0]->IsInt())
{
codelog(NET__PACKET_ERROR, "failed: First main tuple element is not an integer");
PyDecRef(packet);
return false;
}
PyInt *typer = (PyInt *) tuple->items[0];
switch(typer->value()) {
case AUTHENTICATION_REQ:
case AUTHENTICATION_RSP:
case IDENTIFICATION_REQ:
case IDENTIFICATION_RSP:
case CALL_REQ:
case CALL_RSP:
case TRANSPORTCLOSED:
case RESOLVE_REQ:
case RESOLVE_RSP:
case NOTIFICATION:
case ERRORRESPONSE:
case SESSIONCHANGENOTIFICATION:
case SESSIONINITIALSTATENOTIFICATION:
case PING_REQ:
case PING_RSP:
type = (MACHONETMSG_TYPE) typer->value();
break;
default:
codelog(NET__PACKET_ERROR, "failed: Unknown message type %"PRIu64, typer->value());
PyDecRef(packet);
return false;
break;
}
//source address
if(!source.Decode(tuple->items[1]))
{
//error printed in decoder
PyDecRef(packet);
return false;
}
//dest address
if(!dest.Decode(tuple->items[2]))
{
//error printed in decoder
PyDecRef(packet);
return false;
}
if(tuple->items[3]->IsInt())
{
PyInt *i = (PyInt *) tuple->items[3];
userid = i->value();
} else if(tuple->items[3]->IsNone()) {
userid = 0;
} else {
codelog(NET__PACKET_ERROR, "failed: User ID has invalid type");
PyDecRef(packet);
return false;
}
//payload
if(!(tuple->items[4]->IsBuffer() || tuple->items[4]->IsTuple())) {
codelog(NET__PACKET_ERROR, "failed: Fifth main tuple element is not a tuple");
PyDecRef(packet);
return false;
}
payload = (PyTuple *) tuple->items[4];
tuple->items[4] = NULL; //we keep this one
//options dict
if(tuple->items[5]->IsNone())
{
named_payload = NULL;
}
else if(tuple->items[5]->IsDict())
{
named_payload = (PyDict *) tuple->items[5];
tuple->items[5] = NULL; //we keep this too.
}
else
{
codelog(NET__PACKET_ERROR, "failed: Sixth main tuple element is not a dict");
PyDecRef(packet);
return false;
}
PyDecRef(packet);
return true;
}