webdisplays/src/main/java/net/montoyo/wd/client/JSQueryDispatcher.java
2022-06-23 02:34:15 -05:00

372 lines
13 KiB
Java

/*
* Copyright (C) 2018 BARBOTIN Nicolas
*/
package net.montoyo.wd.client;
import net.minecraft.client.Minecraft;
import net.minecraft.core.BlockPos;
import net.minecraft.core.Direction;
import net.minecraft.world.item.ItemStack;
import net.minecraftforge.api.distmarker.Dist;
import net.minecraftforge.api.distmarker.OnlyIn;
import net.montoyo.mcef.api.IBrowser;
import net.montoyo.mcef.api.IJSQueryCallback;
import net.montoyo.wd.WebDisplays;
import net.montoyo.wd.block.BlockScreen;
import net.montoyo.wd.core.DefaultUpgrade;
import net.montoyo.wd.core.IScreenQueryHandler;
import net.montoyo.wd.core.IUpgrade;
import net.montoyo.wd.core.JSServerRequest;
import net.montoyo.wd.entity.TileEntityScreen;
import net.montoyo.wd.net.Messages;
import net.montoyo.wd.net.server.SMessageScreenCtrl;
import net.montoyo.wd.utilities.*;
import java.util.*;
@OnlyIn(Dist.CLIENT)
public final class JSQueryDispatcher {
private static final class QueryData {
private final IBrowser browser;
private final String query;
private final String args;
private final IJSQueryCallback callback;
private QueryData(IBrowser b, String q, String a, IJSQueryCallback cb) {
browser = b;
query = q;
args = a;
callback = cb;
}
}
public static final class ServerQuery {
private static int lastId = 0;
private final TileEntityScreen tes;
private final BlockSide side;
private final IJSQueryCallback callback;
private final int id;
private ServerQuery(TileEntityScreen t, BlockSide s, IJSQueryCallback cb) {
tes = t;
side = s;
callback = cb;
id = lastId++;
}
public TileEntityScreen getTileEntity() {
return tes;
}
public BlockSide getSide() {
return side;
}
public TileEntityScreen.Screen getScreen() {
return tes.getScreen(side);
}
public void success(String resp) {
callback.success(resp);
}
public void error(int errId, String errStr) {
callback.failure(errId, errStr);
}
}
private final ClientProxy proxy;
private final ArrayDeque<QueryData> queue = new ArrayDeque<>();
private final ClientProxy.ScreenSidePair lookupResult = new ClientProxy.ScreenSidePair();
private final HashMap<String, IScreenQueryHandler> handlers = new HashMap<>();
private final ArrayList<ServerQuery> serverQueries = new ArrayList<>();
private final Minecraft mc = Minecraft.getInstance();
public JSQueryDispatcher(ClientProxy proxy) {
this.proxy = proxy;
registerDefaults();
}
public void enqueueQuery(IBrowser b, String q, String a, IJSQueryCallback cb) {
synchronized(queue) {
queue.offer(new QueryData(b, q, a, cb));
}
}
public void handleQueries() {
while(true) {
QueryData next;
synchronized(queue) {
next = queue.poll();
}
if(next == null)
break;
if(proxy.findScreenFromBrowser(next.browser, lookupResult)) {
Object[] args = (next.args == null) ? new Object[0] : parseArgs(next.args);
if(args == null)
next.callback.failure(400, "Malformed request parameters");
else {
try {
handlers.get(next.query).handleQuery(next.callback, lookupResult.tes, lookupResult.side, args);
} catch(Throwable t) {
Log.warningEx("Could not execute JS query %s(%s)", t, next.query, (next.args == null) ? "" : next.args);
next.callback.failure(500, "Internal error");
}
}
} else
next.callback.failure(403, "A screen is required");
}
}
public boolean canHandleQuery(String q) {
return handlers.containsKey(q);
}
private static Object[] parseArgs(String args) {
ArrayList<String> array = new ArrayList<>();
int lastIdx = 0;
boolean inString = false;
boolean escape = false;
boolean hadString = false;
for(int i = 0; i < args.length(); i++) {
char chr = args.charAt(i);
if(inString) {
if(escape)
escape = false;
else {
if(chr == '\"')
inString = false;
else if(chr == '\\')
escape = true;
}
} else if(chr == '\"') {
if(hadString)
return null;
inString = true;
hadString = true;
} else if(chr == ',') {
array.add(args.substring(lastIdx, i).trim());
lastIdx = i + 1;
hadString = false;
}
}
if(inString)
return null; //Non terminated string
array.add(args.substring(lastIdx).trim());
Object[] ret = new Object[array.size()];
for(int i = 0; i < ret.length; i++) {
String str = array.get(i);
if(str.isEmpty())
return null; //Nah...
if(str.charAt(0) == '\"') //String
ret[i] = str.substring(1, str.length() - 1);
else {
try {
ret[i] = Double.parseDouble(str);
} catch(NumberFormatException ex) {
return null;
}
}
}
return ret;
}
public void register(String query, IScreenQueryHandler handler) {
handlers.put(query.toLowerCase(), handler);
}
public ServerQuery fulfillQuery(int id) {
int toRemove = -1;
for(int i = 0; i < serverQueries.size(); i++) {
ServerQuery sq = serverQueries.get(i);
if(sq.id == id) {
toRemove = i;
break;
}
}
if(toRemove < 0)
return null;
else
return serverQueries.remove(toRemove);
}
private void makeServerQuery(TileEntityScreen tes, BlockSide side, IJSQueryCallback cb, JSServerRequest type, Object ... data) {
ServerQuery ret = new ServerQuery(tes, side, cb);
serverQueries.add(ret);
Messages.INSTANCE.sendToServer(SMessageScreenCtrl.jsRequest(tes, side, ret.id, type, data));
}
private void registerDefaults() {
register("GetSize", (cb, tes, side, args) -> {
Vector2i size = tes.getScreen(side).size;
cb.success("{\"x\":" + size.x + ",\"y\":" + size.y + "}");
});
register("GetRedstoneAt", (cb, tes, side, args) -> {
if(!tes.hasUpgrade(side, DefaultUpgrade.REDSTONE_INPUT)) {
cb.failure(403, "Missing upgrade");
return;
}
if(args.length == 2 && args[0] instanceof Double && args[1] instanceof Double) {
TileEntityScreen.Screen scr = tes.getScreen(side);
int x = ((Double) args[0]).intValue();
int y = ((Double) args[1]).intValue();
if(x < 0 || x >= scr.size.x || y < 0 || y >= scr.size.y)
cb.failure(403, "Out of range");
else {
BlockPos bpos = (new Vector3i(tes.getBlockPos())).addMul(side.right, x).addMul(side.up, y).toBlock();
int level = tes.getLevel().getBlockState(bpos).getValue(BlockScreen.emitting) ? 0 : tes.getLevel().getSignal(bpos, Direction.values()[side.reverse().ordinal()]);
cb.success("{\"level\":" + level + "}");
}
} else
cb.failure(400, "Wrong arguments");
});
register("GetRedstoneArray", (cb, tes, side, args) -> {
if(tes.hasUpgrade(side, DefaultUpgrade.REDSTONE_INPUT)) {
final Direction facing = Direction.values()[side.reverse().ordinal()];
final StringJoiner resp = new StringJoiner(",", "{\"levels\":[", "]}");
tes.forEachScreenBlocks(side, bp -> {
if(tes.getLevel().getBlockState(bp).getValue(BlockScreen.emitting))
resp.add("0");
else
resp.add("" + tes.getLevel().getSignal(bp, facing));
});
cb.success(resp.toString());
} else
cb.failure(403, "Missing upgrade");
});
register("ClearRedstone", (cb, tes, side, args) -> {
if(tes.hasUpgrade(side, DefaultUpgrade.REDSTONE_OUTPUT)) {
if(tes.getScreen(side).owner.uuid.equals(mc.player.getGameProfile().getId()))
makeServerQuery(tes, side, cb, JSServerRequest.CLEAR_REDSTONE);
else
cb.success("{\"status\":\"notOwner\"}");
} else
cb.failure(403, "Missing upgrade");
});
register("SetRedstoneAt", (cb, tes, side, args) -> {
if(args.length != 3 || !Arrays.stream(args).allMatch((obj) -> obj instanceof Double)) {
cb.failure(400, "Wrong arguments");
return;
}
if(!tes.hasUpgrade(side, DefaultUpgrade.REDSTONE_OUTPUT)) {
cb.failure(403, "Missing upgrade");
return;
}
if(!tes.getScreen(side).owner.uuid.equals(mc.player.getGameProfile().getId())) {
cb.success("{\"status\":\"notOwner\"}");
return;
}
int x = ((Double) args[0]).intValue();
int y = ((Double) args[1]).intValue();
boolean state = ((Double) args[2]) > 0.0;
Vector2i size = tes.getScreen(side).size;
if(x < 0 || x >= size.x || y < 0 || y >= size.y) {
cb.failure(403, "Out of range");
return;
}
makeServerQuery(tes, side, cb, JSServerRequest.SET_REDSTONE_AT, x, y, state);
});
register("IsEmitting", (cb, tes, side, args) -> {
if(!tes.hasUpgrade(side, DefaultUpgrade.REDSTONE_OUTPUT)) {
cb.failure(403, "Missing upgrade");
return;
}
if(args.length == 2 && args[0] instanceof Double && args[1] instanceof Double) {
TileEntityScreen.Screen scr = tes.getScreen(side);
int x = ((Double) args[0]).intValue();
int y = ((Double) args[1]).intValue();
if(x < 0 || x >= scr.size.x || y < 0 || y >= scr.size.y)
cb.failure(403, "Out of range");
else {
BlockPos bpos = (new Vector3i(tes.getBlockPos())).addMul(side.right, x).addMul(side.up, y).toBlock();
boolean e = tes.getLevel().getBlockState(bpos).getValue(BlockScreen.emitting);
cb.success("{\"emitting\":" + (e ? "true" : "false") + "}");
}
} else
cb.failure(400, "Wrong arguments");
});
register("GetEmissionArray", (cb, tes, side, args) -> {
if(tes.hasUpgrade(side, DefaultUpgrade.REDSTONE_OUTPUT)) {
final StringJoiner resp = new StringJoiner(",", "{\"emission\":[", "]}");
tes.forEachScreenBlocks(side, bp -> resp.add(tes.getLevel().getBlockState(bp).getValue(BlockScreen.emitting) ? "1" : "0"));
cb.success(resp.toString());
} else
cb.failure(403, "Missing upgrade");
});
register("GetLocation", (cb, tes, side, args) -> {
if(!tes.hasUpgrade(side, DefaultUpgrade.GPS)) {
cb.failure(403, "Missing upgrade");
return;
}
BlockPos bp = tes.getBlockPos();
cb.success("{\"x\":" + bp.getX() + ",\"y\":" + bp.getY() + ",\"z\":" + bp.getZ() + ",\"side\":\"" + side + "\"}");
});
register("GetUpgrades", (cb, tes, side, args) -> {
final StringBuilder sb = new StringBuilder("{\"upgrades\":[");
final ArrayList<ItemStack> upgrades = tes.getScreen(side).upgrades;
for(int i = 0; i < upgrades.size(); i++) {
if(i > 0)
sb.append(',');
sb.append('\"');
sb.append(Util.addSlashes(((IUpgrade) upgrades.get(i).getItem()).getJSName(upgrades.get(i))));
sb.append('\"');
}
cb.success(sb.append("]}").toString());
});
register("IsOwner", (cb, tes, side, args) -> {
boolean res = (tes.getScreen(side).owner != null && tes.getScreen(side).owner.uuid.equals(mc.player.getGameProfile().getId()));
cb.success("{\"isOwner\":" + (res ? "true}" : "false}"));
});
register("GetRotation", (cb, tes, side, args) -> cb.success("{\"rotation\":" + tes.getScreen(side).rotation.ordinal() + "}"));
register("GetSide", (cb, tes, side, args) -> cb.success("{\"side\":" + tes.getScreen(side).side.ordinal() + "}"));
}
}