inline void
SkyLinesTracking::Client::OnTrafficReceived(const TrafficResponsePacket &packet,
size_t length)
{
if (length < sizeof(packet))
return;
const unsigned n = packet.traffic_count;
const ConstBuffer<TrafficResponsePacket::Traffic>
list((const TrafficResponsePacket::Traffic *)(&packet + 1), n);
if (length != sizeof(packet) + n * sizeof(list.front()))
return;
for (const auto &traffic : list)
handler->OnTraffic(FromBE32(traffic.pilot_id),
FromBE32(traffic.time),
ImportGeoPoint(traffic.location),
(int16_t)FromBE16(traffic.altitude));
}
void PlayResource (const TCHAR* lpName) {
LKASSERT(lpName);
if(!lpName || !bSoundFile || !bSoundInit || !EnableSoundModes) {
return;
}
// Check if AudioChunk is already loaded.
auto ib = audioChunkCache.insert(std::make_pair(lpName, nullptr));
if(ib.second) {
// Load AudioChunk
ConstBuffer<void> sndBuffer = GetNamedResource(lpName);
if(!sndBuffer.IsEmpty()) {
SDL_RWops* SndBuffer = SDL_RWFromConstMem(sndBuffer.data, sndBuffer.size);
if(SndBuffer) {
ib.first->second = Mix_LoadWAV_RW(SndBuffer, 1);
}
}
}
if(ib.first->second) {
Mix_PlayChannel(-1, ib.first->second, 0);
}
}
std::size_t Packet::read(const ConstBuffer& buf)
{
// https://github.com/LearnBoost/socket.io-spec#Encoding
// Reset all data
_type = Packet::Message;
_id = 0;
_endpoint = "";
_message = "";
_size = 0;
if (buf.size() < 3)
return 0;
std::string data(bufferCast<const char*>(buf), buf.size());
std::vector<std::string> frags = util::split(data, ':', 4);
if (frags.size() < 1) {
//DebugLS(this) << "Reading: Invalid Data: " << frags.size() << endl;
return false;
}
if (!frags[0].empty()) {
_type = util::strtoi<UInt32>(frags[0]);
//DebugLS(this) << "Reading: Type: " << typeString() << endl;
}
if (_type < 0 || _type > 7) {
//DebugLS(this) << "Reading: Invalid Type: " << _type << endl;
return false;
}
if (frags.size() >= 2 && !frags[1].empty()) {
_ack = (frags[1].find('+') != std::string::npos);
_id = util::strtoi<UInt32>(frags[1]);
}
if (frags.size() >= 3 && !frags[2].empty()) {
_endpoint = frags[2];
}
if (frags.size() >= 4 && !frags[3].empty()) {
_message = frags[3];
}
// For Ack packets the ID is at the start of the message
if (_type == 6) {
_ack = true; // This flag is mostly for requests, but we'll set it anyway
std::string data(frags[frags.size() - 1]);
std::string::size_type pos = data.find('+');
if (pos != std::string::npos)
{ // complex ack
_id = util::strtoi<UInt32>(data.substr(0, pos));
_message = data.substr(pos + 1, data.length());
}
else
{ // simple ack
_message = data;
}
#if 0
frags.clear();
util::split(_message, '+', frags, 2);
if (frags.size() != 2) {
assert(frags.size() == 2 && "invalid ack response");
return false;
}
_ack = true; // This is mostly for requests, but we'll set it anyway
_id = util::strtoi<UInt32>(frags[0]);
_message = frags[1];
#endif
}
_size = data.length();
//DebugLS(this) << "Parse success: " << toString() << endl;
return _size;
}
std::size_t Packet::read(const ConstBuffer& buf)
{
DebugN(this) << "Read raw packet: " << buf.str() << endl;
assert(buf.size() > 0);
// Reset all data
_frame = Frame::Unknown;
_type = Type::Unknown;
_id = -1;
_nsp = "/";
_message = "";
_size = -1;
BitReader reader(buf);
// look up frame type
char frame[2] = {'\0'};
reader.get(frame, 1);
_frame = static_cast<Packet::Frame>(atoi(frame));//alternative: std::stoi(std::string(frame, 1))
DebugN(this) << "Read raw packet: atoi(&frame): " << atoi(frame) << endl;
if (_frame == Packet::Frame::Message) {
// look up packet type
char type[2] = {'\0'}; //; //
reader.get(type, 1);
_type = static_cast<Packet::Type>(atoi(type));//std::stoi(std::string(type, 1))
// if (_type < TypeMin || _type > TypeMax) {
// WarnN(this) << "Invalid message type: " << _type << endl;
// return false;
// }
// TraceN(this) << "Parse type: " << type << ": " << typeString() << endl;
}
// look up attachments if type binary (not implemented)
// look up namespace (if any)
if (reader.peek() == '/') {
reader.readToNext(_nsp, ',');
}
// look up id
if (reader.available() && isdigit(reader.peek())) {
char next;
std::string id;
reader.get(&next, 1);
while (reader.available() && isdigit(next)) {
id += next;
reader.get(&next, 1);
}
_id = util::strtoi<int>(id);
}
// look up json data
// TODO: Take into account joined messages
if (reader.available()) {
std::string temp;
reader.get(temp, reader.available());
json::Value json;
json::Reader reader;
if (reader.parse(temp, json)) {
if (json.isArray()) {
if (json.size() < 2) {
_event = "message";
_message = json::stringify(json[0], true);
}
else {
assert(json[0].isString());
_event = json[0].asString();
_message = json::stringify(json[1], true);
}
}
else if (json.isObject()) {
_message = json::stringify(json, true);
}
}
}
_size = reader.position();
// DebugN(this) << "Parse success: " << toString() << endl;
return _size;
}
std::size_t Message::read(const ConstBuffer& buf)
{
return read(buf.str()); // refactor
}
std::size_t Message::read(const ConstBuffer& buf) //BitReader& reader
{
TraceL << "Parse STUN packet: " << buf.size() << endl;
try {
BitReader reader(buf);
// Message type
UInt16 type;
reader.getU16(type);
if (type & 0x8000) {
// RTP and RTCP set MSB of first byte, since first two bits are version,
// and version is always 2 (10). If set, this is not a STUN packet.
WarnL << "Not STUN packet" << endl;
return 0;
}
//UInt16 method = (type & 0x000F) | ((type & 0x00E0)>>1) |
// ((type & 0x0E00)>>2) | ((type & 0x3000)>>2);
UInt16 classType = type & 0x0110;
UInt16 methodType = type & 0x000F;
if (!isValidMethod(methodType)) {
WarnL << "STUN message unknown method: " << methodType << endl;
return 0;
}
_class = classType; // static_cast<UInt16>(type & 0x0110);
_method = methodType; // static_cast<UInt16>(type & 0x000F);
// Message length
reader.getU16(_size);
if (_size > buf.size()) {
WarnL << "STUN message larger than buffer: " << _size << " > " << buf.size() << endl;
return 0;
}
// TODO: Check valid method
// TODO: Parse message class (Message::State)
// Magic cookie
reader.skip(kMagicCookieLength);
//std::string magicCookie;
//reader.get(magicCookie, kMagicCookieLength);
// Transaction ID
std::string transactionID;
reader.get(transactionID, kTransactionIdLength);
assert(transactionID.size() == kTransactionIdLength);
_transactionID = transactionID;
// Attributes
_attrs.clear();
//int errors = 0;
int rest = _size;
UInt16 attrType, attrLength, padLength;
assert(int(reader.available()) >= rest);
while (rest > 0) {
reader.getU16(attrType);
reader.getU16(attrLength);
padLength = attrLength % 4 == 0 ? 0 : 4 - (attrLength % 4);
auto attr = Attribute::create(attrType, attrLength);
if (attr) {
attr->read(reader); // parse or throw
_attrs.push_back(attr);
// TraceL << "Parse attribute: " << Attribute::typeString(attrType) << ": " << attrLength << endl; // << ": " << rest
}
else
WarnL << "Failed to parse attribute: " << Attribute::typeString(attrType) << ": " << attrLength << endl;
rest -= (attrLength + kAttributeHeaderSize + padLength);
}
TraceL << "Parse success: " << reader.position() << ": " << buf.size() << endl;
assert(rest == 0);
assert(reader.position() == _size + kMessageHeaderSize);
return reader.position();
}
catch (std::exception& exc) {
DebugL << "Parse error: " << exc.what() << endl;
}
return 0;
}
ssize_t Packet::read(const ConstBuffer& buf)
{
LTrace("Read raw packet: ", buf.str())
assert(buf.size() > 0);
// Reset all data
_frame = Frame::Unknown;
_type = Type::Unknown;
_id = -1;
_nsp = "/";
_message = "";
_size = 0;
BitReader reader(buf);
// parse frame type
char frame[2] = {'\0'};
reader.get(frame, 1);
_frame = static_cast<Packet::Frame>(atoi(frame)); // std::stoi(std::string(frame, 1))
if (_frame == Packet::Frame::Message) {
// parse packet type
char type[2] = {'\0'};
reader.get(type, 1);
_type = static_cast<Packet::Type>(atoi(type)); // std::stoi(std::string(type, 1))
// if (_type < TypeMin || _type > TypeMax) {
// LWarn("Invalid message type: ", _type)
// return false;
// }
// LTrace("Parse type: ", type, ": ", typeString())
}
// parse attachments if type binary (not implemented)
// parse namespace (if any)
if (reader.peek() == '/') {
reader.readToNext(_nsp, ',');
}
// parse id
reader.readNextNumber((unsigned int&)_id);
// parse json data
// TODO: Take into account joined messages
if (reader.available()) {
std::string temp;
reader.get(temp, reader.available());
json::value json = json::value::parse(temp.begin(), temp.end());
if (json.is_array()) {
if (json.size() < 2) {
_event = "message";
_message = json[0].dump();
} else {
assert(json[0].is_string());
_event = json[0].get<std::string>();
_message = json[1].dump();
}
}
else if (json.is_object()) {
_message = json.dump();
}
}
_size = reader.position();
// LDebug("Parse success: ", toString())
return _size;
}
