Waterfall/BungeeCord-Patches/0047-Add-ProxyDefineCommandsEvent.patch

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From f36d1c7e29ee37a364a530794c674bdab826e774 Mon Sep 17 00:00:00 2001
From: Shane Freeder <theboyetronic@gmail.com>
Date: Thu, 14 Mar 2019 07:44:06 +0000
Subject: [PATCH] Add ProxyDefineCommandsEvent
provides an event to allow plugins to intercept tab completions
sent to the client
diff --git a/api/src/main/java/io/github/waterfallmc/waterfall/event/ProxyDefineCommandsEvent.java b/api/src/main/java/io/github/waterfallmc/waterfall/event/ProxyDefineCommandsEvent.java
new file mode 100644
index 00000000..1fd4fc90
--- /dev/null
+++ b/api/src/main/java/io/github/waterfallmc/waterfall/event/ProxyDefineCommandsEvent.java
@@ -0,0 +1,41 @@
+package io.github.waterfallmc.waterfall.event;
+
+import net.md_5.bungee.api.CommandSender;
+import net.md_5.bungee.api.connection.Connection;
+import net.md_5.bungee.api.connection.ProxiedPlayer;
+import net.md_5.bungee.api.event.TargetedEvent;
+import net.md_5.bungee.api.plugin.Command;
+import net.md_5.bungee.api.plugin.Event;
+
+import java.util.Map;
+
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.ToString;
+
+/**
+ * Called when the proxy intercepts the command packet
+ * allowing for plugins to prevent commands being added
+ * to the clients which might not be wanted.
+ *
+ *
+ * <i>Plugin developers, please implement {@link Command#hasPermission(CommandSender)}
+ * properly in favor of this event.</i>
+ */
+@Data
+@ToString(callSuper = true)
+@EqualsAndHashCode(callSuper = true)
+public class ProxyDefineCommandsEvent extends TargetedEvent {
+
+
+ /**
+ * The map of commands to be sent to the player
+ */
+ private final Map<String, Command> commands;
+
+ public ProxyDefineCommandsEvent(Connection sender, Connection receiver, Map<String, Command> commands) {
+ super(sender, receiver);
+ this.commands = commands;
+ }
+
+}
diff --git a/proxy/src/main/java/net/md_5/bungee/connection/DownstreamBridge.java b/proxy/src/main/java/net/md_5/bungee/connection/DownstreamBridge.java
index 72b6e9be..ace177ba 100644
--- a/proxy/src/main/java/net/md_5/bungee/connection/DownstreamBridge.java
+++ b/proxy/src/main/java/net/md_5/bungee/connection/DownstreamBridge.java
@@ -12,7 +12,8 @@ import com.mojang.brigadier.context.StringRange;
import com.mojang.brigadier.suggestion.Suggestion;
import com.mojang.brigadier.suggestion.Suggestions;
import com.mojang.brigadier.tree.LiteralCommandNode;
-import java.util.Objects; // Waterfall
+
+import io.github.waterfallmc.waterfall.event.ProxyDefineCommandsEvent; // Waterfall
import io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufAllocator;
import io.netty.buffer.Unpooled;
@@ -20,8 +21,10 @@ import io.netty.channel.unix.DomainSocketAddress;
import java.io.DataInput;
import java.net.InetSocketAddress;
import java.util.ArrayList;
+import java.util.HashMap; // Waterfall
import java.util.List;
import java.util.Map;
+import java.util.Objects; // Waterfall
import lombok.RequiredArgsConstructor;
import net.md_5.bungee.ServerConnection;
import net.md_5.bungee.ServerConnection.KeepAliveData;
@@ -680,9 +683,25 @@ public class DownstreamBridge extends PacketHandler
{
boolean modified = false;
- for ( Map.Entry<String, Command> command : bungee.getPluginManager().getCommands() )
+ // Waterfall start
+ Map<String, Command> commandMap = new HashMap<>();
+ for ( Map.Entry<String, Command> commandEntry : bungee.getPluginManager().getCommands() ) {
+ if ( !bungee.getDisabledCommands().contains( commandEntry.getKey() )
+ && commands.getRoot().getChild( commandEntry.getKey() ) == null
+ && commandEntry.getValue().hasPermission( this.con ) ) {
+
+ commandMap.put( commandEntry.getKey(), commandEntry.getValue() );
+ }
+ }
+
+ ProxyDefineCommandsEvent event = new ProxyDefineCommandsEvent( this.server, this.con, commandMap );
+ bungee.getPluginManager().callEvent( event );
+
+ for ( Map.Entry<String, Command> command : event.getCommands().entrySet() )
{
- if ( !bungee.getDisabledCommands().contains( command.getKey() ) && commands.getRoot().getChild( command.getKey() ) == null && command.getValue().hasPermission( con ) )
+ //noinspection ConstantConditions
+ if ( true ) // Moved up
+ // Waterfall end
{
LiteralCommandNode dummy = LiteralArgumentBuilder.literal( command.getKey() )
.then( RequiredArgumentBuilder.argument( "args", StringArgumentType.greedyString() )
--
2.28.0