mirror of
https://github.com/PaperMC/Paper.git
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89d51d5f29
Because this exploit has been widely known for years and has not been fixed by Mojang, we decided that it was worth allowing people to toggle it on/off due to how easy it is to make it configurable. It should be noted that this decision does not promise all future exploits will be configurable.
120 lines
6.4 KiB
Diff
120 lines
6.4 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Jake Potrebic <jake.m.potrebic@gmail.com>
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Date: Fri, 9 Jul 2021 13:50:48 -0700
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Subject: [PATCH] Fix commands from signs not firing command events
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This patch changes sign command logic so that `run_command` click events:
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- are logged to the console
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- fire PlayerCommandPreprocessEvent
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- work with double-slash commands like `//wand`
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- sends failure messages to the player who clicked the sign
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diff --git a/src/main/java/io/papermc/paper/commands/DelegatingCommandSource.java b/src/main/java/io/papermc/paper/commands/DelegatingCommandSource.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..01a2bc1feec808790bb93618ce46adb9bea5a9c8
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--- /dev/null
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+++ b/src/main/java/io/papermc/paper/commands/DelegatingCommandSource.java
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@@ -0,0 +1,42 @@
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+package io.papermc.paper.commands;
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+
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+import net.minecraft.commands.CommandSource;
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+import net.minecraft.commands.CommandSourceStack;
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+import net.minecraft.network.chat.Component;
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+import org.bukkit.command.CommandSender;
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+
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+import java.util.UUID;
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+
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+public class DelegatingCommandSource implements CommandSource {
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+
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+ private final CommandSource delegate;
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+
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+ public DelegatingCommandSource(CommandSource delegate) {
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+ this.delegate = delegate;
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+ }
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+
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+ @Override
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+ public void sendSystemMessage(Component message) {
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+ delegate.sendSystemMessage(message);
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+ }
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+
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+ @Override
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+ public boolean acceptsSuccess() {
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+ return delegate.acceptsSuccess();
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+ }
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+
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+ @Override
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+ public boolean acceptsFailure() {
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+ return delegate.acceptsFailure();
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+ }
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+
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+ @Override
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+ public boolean shouldInformAdmins() {
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+ return delegate.shouldInformAdmins();
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+ }
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+
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+ @Override
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+ public CommandSender getBukkitSender(CommandSourceStack wrapper) {
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+ return delegate.getBukkitSender(wrapper);
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+ }
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+}
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diff --git a/src/main/java/net/minecraft/world/level/block/entity/SignBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/SignBlockEntity.java
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index 9939cad5af2d7873f188f18978029663a8d785de..f3cea7a8de334419b4a2f6dc64ef0e20fd715e75 100644
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--- a/src/main/java/net/minecraft/world/level/block/entity/SignBlockEntity.java
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+++ b/src/main/java/net/minecraft/world/level/block/entity/SignBlockEntity.java
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@@ -273,7 +273,17 @@ public class SignBlockEntity extends BlockEntity implements CommandSource { // C
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ClickEvent chatclickable = chatmodifier.getClickEvent();
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if (chatclickable != null && chatclickable.getAction() == ClickEvent.Action.RUN_COMMAND) {
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- player.getServer().getCommands().performPrefixedCommand(this.createCommandSourceStack(player, world, pos), chatclickable.getValue());
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+ // Paper start - Fix commands from signs not firing command events
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+ String command = chatclickable.getValue().startsWith("/") ? chatclickable.getValue() : "/" + chatclickable.getValue();
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+ if (org.spigotmc.SpigotConfig.logCommands) {
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+ LOGGER.info("{} issued server command: {}", player.getScoreboardName(), command);
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+ }
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+ io.papermc.paper.event.player.PlayerSignCommandPreprocessEvent event = new io.papermc.paper.event.player.PlayerSignCommandPreprocessEvent((org.bukkit.entity.Player) player.getBukkitEntity(), command, new org.bukkit.craftbukkit.util.LazyPlayerSet(player.getServer()), (org.bukkit.block.Sign) CraftBlock.at(this.level, this.worldPosition).getState(), front ? Side.FRONT : Side.BACK);
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+ if (!event.callEvent()) {
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+ return false;
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+ }
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+ player.getServer().getCommands().performPrefixedCommand(this.createCommandSourceStack(((org.bukkit.craftbukkit.entity.CraftPlayer) event.getPlayer()).getHandle(), world, pos), event.getMessage());
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+ // Paper end - Fix commands from signs not firing command events
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flag1 = true;
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}
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}
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@@ -310,8 +320,23 @@ public class SignBlockEntity extends BlockEntity implements CommandSource { // C
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String s = player == null ? "Sign" : player.getName().getString();
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Object object = player == null ? Component.literal("Sign") : player.getDisplayName();
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+ // Paper start - Fix commands from signs not firing command events
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+ CommandSource commandSource = this.level.paperConfig().misc.showSignClickCommandFailureMsgsToPlayer ? new io.papermc.paper.commands.DelegatingCommandSource(this) {
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+ @Override
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+ public void sendSystemMessage(Component message) {
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+ if (player != null) {
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+ player.sendSystemMessage(message);
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+ }
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+ }
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+
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+ @Override
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+ public boolean acceptsFailure() {
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+ return true;
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+ }
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+ } : this;
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+ // Paper end - Fix commands from signs not firing command events
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// CraftBukkit - this
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- return new CommandSourceStack(this, Vec3.atCenterOf(pos), Vec2.ZERO, (ServerLevel) world, 2, s, (Component) object, world.getServer(), player);
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+ return new CommandSourceStack(commandSource, Vec3.atCenterOf(pos), Vec2.ZERO, (ServerLevel) world, 2, s, (Component) object, world.getServer(), player); // Paper - Fix commands from signs not firing command events
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}
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@Override
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diff --git a/src/main/java/org/bukkit/craftbukkit/command/BukkitCommandWrapper.java b/src/main/java/org/bukkit/craftbukkit/command/BukkitCommandWrapper.java
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index d113e54a30db16e2ad955170df6030d15de530d6..21b6f90cf5bd7087d1a0f512289d971f2c3e1afa 100644
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--- a/src/main/java/org/bukkit/craftbukkit/command/BukkitCommandWrapper.java
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+++ b/src/main/java/org/bukkit/craftbukkit/command/BukkitCommandWrapper.java
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@@ -61,7 +61,7 @@ public class BukkitCommandWrapper implements com.mojang.brigadier.Command<Comman
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CommandSender sender = context.getSource().getBukkitSender();
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try {
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- return this.server.dispatchCommand(sender, context.getInput()) ? 1 : 0;
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+ return this.server.dispatchCommand(sender, context.getRange().get(context.getInput())) ? 1 : 0; // Paper - Fix commands from signs not firing command events; actually use the StringRange from context
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} catch (CommandException ex) {
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sender.sendMessage(org.bukkit.ChatColor.RED + "An internal error occurred while attempting to perform this command");
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this.server.getLogger().log(Level.SEVERE, null, ex);
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