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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.
90 lines
6.6 KiB
Diff
90 lines
6.6 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: Mon, 24 Jan 2022 15:32:02 -0800
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Subject: [PATCH] Fix cmd permission levels for command blocks
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diff --git a/src/main/java/net/minecraft/commands/CommandSourceStack.java b/src/main/java/net/minecraft/commands/CommandSourceStack.java
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index 907bc9d84dbc98427384cf529bfde4b09d8ce8ca..faa375f2722793a86265248a4be4fa14736d9818 100644
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--- a/src/main/java/net/minecraft/commands/CommandSourceStack.java
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+++ b/src/main/java/net/minecraft/commands/CommandSourceStack.java
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@@ -204,10 +204,29 @@ public class CommandSourceStack implements ExecutionCommandSource<CommandSourceS
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return this.permissionLevel >= level;
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}
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+ // Paper start - Fix permission levels for command blocks
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+ private boolean forceRespectPermissionLevel() {
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+ return this.source == CommandSource.NULL || (this.source instanceof final net.minecraft.world.level.BaseCommandBlock commandBlock && commandBlock.getLevel().paperConfig().commandBlocks.forceFollowPermLevel);
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+ }
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+ // Paper end - Fix permission levels for command blocks
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+
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// CraftBukkit start
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public boolean hasPermission(int i, String bukkitPermission) {
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- // World is null when loading functions
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- return ((this.getLevel() == null || !this.getLevel().getCraftServer().ignoreVanillaPermissions) && this.permissionLevel >= i) || this.getBukkitSender().hasPermission(bukkitPermission);
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+ // Paper start - Fix permission levels for command blocks
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+ final java.util.function.BooleanSupplier hasBukkitPerm = () -> this.source == CommandSource.NULL /*treat NULL as having all bukkit perms*/ || this.getBukkitSender().hasPermission(bukkitPermission); // lazily check bukkit perms to the benefit of custom permission setups
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+ // if the server is null, we must check the vanilla perm level system
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+ // if ignoreVanillaPermissions is true, we can skip vanilla perms and just run the bukkit perm check
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+ //noinspection ConstantValue
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+ if (this.getServer() == null || !this.getServer().server.ignoreVanillaPermissions) { // server & level are null for command function loading
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+ final boolean hasPermLevel = this.permissionLevel >= i;
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+ if (this.forceRespectPermissionLevel()) { // NULL CommandSource and command blocks (if setting is enabled) should always pass the vanilla perm check
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+ return hasPermLevel && hasBukkitPerm.getAsBoolean();
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+ } else { // otherwise check vanilla perm first then bukkit perm, matching upstream behavior
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+ return hasPermLevel || hasBukkitPerm.getAsBoolean();
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+ }
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+ }
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+ return hasBukkitPerm.getAsBoolean();
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+ // Paper end - Fix permission levels for command blocks
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}
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// CraftBukkit end
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diff --git a/src/main/java/net/minecraft/commands/Commands.java b/src/main/java/net/minecraft/commands/Commands.java
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index dd7c1ac97505ce7a846aa8ee91bb654d060acc1a..df06c28c778255cb2d8d5e14960bd38a2af9ad22 100644
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--- a/src/main/java/net/minecraft/commands/Commands.java
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+++ b/src/main/java/net/minecraft/commands/Commands.java
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@@ -296,16 +296,7 @@ public class Commands {
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String[] args = command.split(" ");
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if (args.length == 0) return; // Paper - empty commands shall not be dispatched
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- String cmd = args[0];
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- if (cmd.startsWith("minecraft:")) cmd = cmd.substring("minecraft:".length());
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- if (cmd.startsWith("bukkit:")) cmd = cmd.substring("bukkit:".length());
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-
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- // Block disallowed commands
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- if (cmd.equalsIgnoreCase("stop") || cmd.equalsIgnoreCase("kick") || cmd.equalsIgnoreCase("op")
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- || cmd.equalsIgnoreCase("deop") || cmd.equalsIgnoreCase("ban") || cmd.equalsIgnoreCase("ban-ip")
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- || cmd.equalsIgnoreCase("pardon") || cmd.equalsIgnoreCase("pardon-ip") || cmd.equalsIgnoreCase("reload")) {
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- return;
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- }
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+ // Paper - Fix permission levels for command blocks
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// Handle vanilla commands;
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if (sender.getLevel().getCraftServer().getCommandBlockOverride(args[0])) {
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diff --git a/src/main/java/net/minecraft/world/entity/vehicle/MinecartCommandBlock.java b/src/main/java/net/minecraft/world/entity/vehicle/MinecartCommandBlock.java
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index 48b4fe75a7f881e7713885d79d4ef5ec7b574a2d..88b00556322f078b8a9d28fb7c759bb8c84bfcf0 100644
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--- a/src/main/java/net/minecraft/world/entity/vehicle/MinecartCommandBlock.java
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+++ b/src/main/java/net/minecraft/world/entity/vehicle/MinecartCommandBlock.java
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@@ -136,7 +136,7 @@ public class MinecartCommandBlock extends AbstractMinecart {
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@Override
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public CommandSourceStack createCommandSourceStack() {
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- return new CommandSourceStack(this, MinecartCommandBlock.this.position(), MinecartCommandBlock.this.getRotationVector(), this.getLevel(), 2, this.getName().getString(), MinecartCommandBlock.this.getDisplayName(), this.getLevel().getServer(), MinecartCommandBlock.this);
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+ return new CommandSourceStack(this, MinecartCommandBlock.this.position(), MinecartCommandBlock.this.getRotationVector(), this.getLevel(), this.getLevel().paperConfig().commandBlocks.permissionsLevel, this.getName().getString(), MinecartCommandBlock.this.getDisplayName(), this.getLevel().getServer(), MinecartCommandBlock.this); // Paper - configurable command block perm level
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}
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@Override
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diff --git a/src/main/java/net/minecraft/world/level/block/entity/CommandBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/CommandBlockEntity.java
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index 167f334eec90417eba05fcecec21435415771df7..f08c77e20462bada221b5ed395ceb2f7d39ee7c0 100644
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--- a/src/main/java/net/minecraft/world/level/block/entity/CommandBlockEntity.java
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+++ b/src/main/java/net/minecraft/world/level/block/entity/CommandBlockEntity.java
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@@ -54,7 +54,7 @@ public class CommandBlockEntity extends BlockEntity {
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public CommandSourceStack createCommandSourceStack() {
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Direction enumdirection = (Direction) CommandBlockEntity.this.getBlockState().getValue(CommandBlock.FACING);
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- return new CommandSourceStack(this, Vec3.atCenterOf(CommandBlockEntity.this.worldPosition), new Vec2(0.0F, enumdirection.toYRot()), this.getLevel(), 2, this.getName().getString(), this.getName(), this.getLevel().getServer(), (Entity) null);
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+ return new CommandSourceStack(this, Vec3.atCenterOf(CommandBlockEntity.this.worldPosition), new Vec2(0.0F, enumdirection.toYRot()), this.getLevel(), this.getLevel().paperConfig().commandBlocks.permissionsLevel, this.getName().getString(), this.getName(), this.getLevel().getServer(), (Entity) null); // Paper - configurable command block perm level
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}
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@Override
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