private static void processPacketHandlers() throws IOException, ClassNotFoundException {
packetHandlers = new HashMap<Class<? extends Packet>, Class<? extends PacketCommand>>();
Set<String> annotationIndex = getAnnotationIndex(PACKET_HANDLER_PATH);
for (String sClazz : annotationIndex) {
Class<?> clazz = Class.forName(sClazz);
Class<? extends PacketCommand> handler = (Class<? extends PacketCommand>) clazz;
PacketHandler annotation = handler.getAnnotation(PacketHandler.class);
Class<? extends Packet> value = annotation.value();
packetHandlers.put(value, handler);
}
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
if (ctx.channel().isActive()) {
if (cause instanceof ReadTimeoutException) {
ProxyServer.getInstance().getLogger().log(Level.WARNING, "{0} - read timed out", handler);
} else if (cause instanceof BadPacketException) {
ProxyServer.getInstance()
.getLogger()
.log(Level.WARNING, "{0} - bad packet ID, are mods in use!?", handler);
} else if (cause instanceof IOException) {
ProxyServer.getInstance()
.getLogger()
.log(
Level.WARNING,
"{0} - IOException: {1}",
new Object[] {handler, cause.getMessage()});
} else {
ProxyServer.getInstance()
.getLogger()
.log(Level.SEVERE, handler + " - encountered exception", cause);
}
if (handler != null) {
try {
handler.exception(cause);
} catch (Exception ex) {
ProxyServer.getInstance()
.getLogger()
.log(Level.SEVERE, handler + " - exception processing exception", ex);
}
}
ctx.close();
}
}
@Override
public void channelInactive(ChannelHandlerContext ctx) throws Exception {
if (handler != null) {
handler.disconnected(channel);
if (!(handler instanceof InitialHandler || handler instanceof PingHandler)) {
ProxyServer.getInstance().getLogger().log(Level.INFO, "{0} has disconnected", handler);
}
}
}
/**
* Delivers a packet that was received from the client.
*
* @param packet the wrapper around the JSON object containing the message
*/
public void recvRequest(Packet packet) {
int suppliedId = packet.getPlayerId();
if (player == null && suppliedId != Packet.PLAYER_ID_NOT_LOGGED_IN) {
// impersonation attempt
throw new ClientModifiedException(
"hacking attempt detected: not logged in, but supplied id = " + packet.getPlayerId());
} else if (player != null && packet.getPlayerId() != player.getId()) {
// impersonation attempt
throw new ClientModifiedException(
"hacking attempt detected: wrong player id, is "
+ player.getId()
+ " but supplied "
+ packet.getPlayerId());
}
// passed the hacking checks, find the handler
String action = packet.getAction();
PacketHandler handler =
(player == null) ? packetHandlersNoAuth.get(action) : packetHandlers.get(action);
if (handler == null) {
throw new ClientModifiedException("hacking attempt detected: action = " + action);
}
// finally, handle the packet
handler.handlePacket(this, packet);
}
@Override
public void updateEntity() {
if (this.worldObj.isRemote) {
simpleAnimationIterate();
return;
}
if (this.worldObj.getWorldTime() % 20 == 7) {
PacketDispatcher.sendPacketToAllAround(
this.xCoord,
this.yCoord,
this.zCoord,
256,
this.worldObj.provider.dimensionId,
PacketHandler.getPacketFromNBT(this));
}
this.ticks++;
for (int i = this.efficiency + 1; i > 0; i--) {
Recipe r = RefineryRecipes.findRefineryRecipe(this.src1, this.src2);
if (r == null) {
decreaseAnimation();
this.ticks = 0;
return;
}
if (this.res != null && r.result.amount > (this.buf - this.res.amount)) {
decreaseAnimation();
return;
}
if (r.delay > this.ticks) return;
if (i == 1) this.ticks = 0;
if (!PowerManager.useEnergyR(this.pp, r.energy, this.unbreaking)) {
decreaseAnimation();
return;
}
increaseAnimation();
if (r.ingredient1.isFluidEqual(this.src1)) this.src1.amount -= r.ingredient1.amount;
else this.src2.amount -= r.ingredient1.amount;
if (r.ingredient2 != null) {
if (r.ingredient2.isFluidEqual(this.src2)) this.src2.amount -= r.ingredient2.amount;
else this.src1.amount -= r.ingredient2.amount;
}
if (this.src1 != null && this.src1.amount == 0) this.src1 = null;
if (this.src2 != null && this.src2.amount == 0) this.src2 = null;
if (this.res == null) this.res = r.result.copy();
else this.res.amount += r.result.amount;
}
}
/**
* BLOCKING if queue between here and PacketHandler is full.
*
* @return zero (was queue size)
*/
private final int doReceive(UDPPacket packet) {
if (!_keepRunning) return 0;
if (_log.shouldLog(Log.INFO)) _log.info("Received: " + packet);
RemoteHostId from = packet.getRemoteHost();
if (_transport.isInDropList(from)) {
if (_log.shouldLog(Log.INFO)) _log.info("Ignoring packet from the drop-listed peer: " + from);
_context.statManager().addRateData("udp.ignorePacketFromDroplist", packet.getLifetime());
packet.release();
return 0;
}
// drop anything apparently from our IP (any port)
if (Arrays.equals(from.getIP(), _transport.getExternalIP()) && !_transport.allowLocal()) {
if (_log.shouldLog(Log.WARN)) _log.warn("Dropping (spoofed?) packet from ourselves");
packet.release();
return 0;
}
/**
* ** packet.enqueue(); boolean rejected = false; int queueSize = 0; long headPeriod = 0;
*
* <p>UDPPacket head = _inboundQueue.peek(); if (head != null) { headPeriod =
* head.getLifetime(); if (headPeriod > MAX_QUEUE_PERIOD) { rejected = true; } } if (!rejected)
* { **
*/
try {
_handler.queueReceived(packet);
} catch (InterruptedException ie) {
packet.release();
_keepRunning = false;
}
// return queueSize + 1;
return 0;
/**
* ** }
*
* <p>// rejected packet.release(); _context.statManager().addRateData("udp.droppedInbound",
* queueSize, headPeriod); if (_log.shouldLog(Log.WARN)) { queueSize = _inboundQueue.size();
* StringBuilder msg = new StringBuilder(); msg.append("Dropping inbound packet with ");
* msg.append(queueSize); msg.append(" queued for "); msg.append(headPeriod); msg.append("
* packet handlers: ").append(_transport.getPacketHandlerStatus()); _log.warn(msg.toString()); }
* return queueSize; **
*/
}
public static void handle() {
if (FMLCommonHandler.instance().getEffectiveSide() == Side.CLIENT) {
ClientHelper.getPlayer()
.addChatComponentMessage(
new ChatComponentText("All player data for Progression was reset."));
} else {
if (Options.editor) {
Progression.instance
.createWorldData(); // Recreate the world data, Wiping out any saved information for
// players
RemappingHandler.reloadServerData();
for (EntityPlayer player : PlayerHelper.getAllPlayers()) {
RemappingHandler.onPlayerConnect((EntityPlayerMP) player);
}
PacketHandler.sendToEveryone(new PacketReset());
}
}
}
private void sendNowPacket() {
try {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
DataOutputStream dos = new DataOutputStream(bos);
dos.writeInt(this.xCoord);
dos.writeInt(this.yCoord);
dos.writeInt(this.zCoord);
dos.writeByte(PacketHandler.StC_NOW);
dos.writeFloat(this.animationSpeed);
PacketDispatcher.sendPacketToAllAround(
this.xCoord,
this.yCoord,
this.zCoord,
256,
this.worldObj.provider.dimensionId,
PacketHandler.composeTilePacket(bos));
} catch (Exception e) {
e.printStackTrace();
}
}
@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
if (handler != null) {
PacketWrapper packet = (PacketWrapper) msg;
boolean sendPacket = true;
try {
if (packet.packet != null) {
try {
packet.packet.handle(handler);
} catch (CancelSendSignal ex) {
sendPacket = false;
}
}
if (sendPacket) {
handler.handle(packet);
}
} finally {
packet.trySingleRelease();
}
}
}
@SideOnly(Side.CLIENT)
@SubscribeEvent
/** Grabs mouse scroll events for slope selection. */
public void onMouseEvent(MouseEvent event) {
// We only want to process wheel events
if (event.button < 0) {
EntityPlayer entityPlayer = Minecraft.getMinecraft().thePlayer;
if (entityPlayer != null && entityPlayer.isSneaking()) {
ItemStack itemStack = entityPlayer.getHeldItem();
if (itemStack != null
&& itemStack.getItem() instanceof ItemBlock
&& BlockProperties.toBlock(itemStack).equals(BlockRegistry.blockCarpentersSlope)) {
if (event.dwheel != 0) {
PacketHandler.sendPacketToServer(
new PacketSlopeSelect(entityPlayer.inventory.currentItem, event.dwheel > 0));
}
event.setCanceled(true);
}
}
}
}
