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path: root/patches/server/0366-Add-permission-for-command-blocks.patch
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Mariell Hoversholm <proximyst@proximyst.com>
Date: Sat, 16 May 2020 10:05:30 +0200
Subject: [PATCH] Add permission for command blocks


diff --git a/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java b/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
index 4623c8acd125dff4919c4e2045b848310d785da5..86e4559da2344f228ef4d1c4ac3c115fa0266d23 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
@@ -403,7 +403,7 @@ public class ServerPlayerGameMode {
             BlockEntity tileentity = this.level.getBlockEntity(pos);
             Block block = iblockdata.getBlock();
 
-            if (block instanceof GameMasterBlock && !this.player.canUseGameMasterBlocks()) {
+            if (block instanceof GameMasterBlock && !this.player.canUseGameMasterBlocks() && !(block instanceof net.minecraft.world.level.block.CommandBlock && (this.player.isCreative() && this.player.getBukkitEntity().hasPermission("minecraft.commandblock")))) { // Paper - command block permission
                 this.level.sendBlockUpdated(pos, iblockdata, iblockdata, 3);
                 return false;
             } else if (this.player.blockActionRestricted(this.level, pos, this.gameModeForPlayer)) {
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index 71785d4b2204030dc718c10494840013d5ea72fa..51e718812f2696f05824c735962aa885069d68e3 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -816,7 +816,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
         PacketUtils.ensureRunningOnSameThread(packet, this, this.player.serverLevel());
         if (!this.server.isCommandBlockEnabled()) {
             this.player.sendSystemMessage(Component.translatable("advMode.notEnabled"));
-        } else if (!this.player.canUseGameMasterBlocks()) {
+        } else if (!this.player.canUseGameMasterBlocks() && (!this.player.isCreative() || !this.player.getBukkitEntity().hasPermission("minecraft.commandblock"))) { // Paper - command block permission
             this.player.sendSystemMessage(Component.translatable("advMode.notAllowed"));
         } else {
             BaseCommandBlock commandblocklistenerabstract = null;
@@ -883,7 +883,7 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
         PacketUtils.ensureRunningOnSameThread(packet, this, this.player.serverLevel());
         if (!this.server.isCommandBlockEnabled()) {
             this.player.sendSystemMessage(Component.translatable("advMode.notEnabled"));
-        } else if (!this.player.canUseGameMasterBlocks()) {
+        } else if (!this.player.canUseGameMasterBlocks() && (!this.player.isCreative() || !this.player.getBukkitEntity().hasPermission("minecraft.commandblock"))) { // Paper - command block permission
             this.player.sendSystemMessage(Component.translatable("advMode.notAllowed"));
         } else {
             BaseCommandBlock commandblocklistenerabstract = packet.getCommandBlock(this.player.level());
diff --git a/src/main/java/net/minecraft/world/level/BaseCommandBlock.java b/src/main/java/net/minecraft/world/level/BaseCommandBlock.java
index 0898dfd42de0c25938d9a25c18f43d5b1a16aa6c..a0e59b236dff1f861a0e987764a77ee203504412 100644
--- a/src/main/java/net/minecraft/world/level/BaseCommandBlock.java
+++ b/src/main/java/net/minecraft/world/level/BaseCommandBlock.java
@@ -204,7 +204,7 @@ public abstract class BaseCommandBlock implements CommandSource {
     }
 
     public InteractionResult usedBy(Player player) {
-        if (!player.canUseGameMasterBlocks()) {
+        if (!player.canUseGameMasterBlocks() && (!player.isCreative() || !player.getBukkitEntity().hasPermission("minecraft.commandblock"))) { // Paper - command block permission
             return InteractionResult.PASS;
         } else {
             if (player.getCommandSenderWorld().isClientSide) {
diff --git a/src/main/java/net/minecraft/world/level/block/CommandBlock.java b/src/main/java/net/minecraft/world/level/block/CommandBlock.java
index 090846f3b310959b3a7d16ed341f8d2100938c9d..40c79df819a111b88adbbd006e3696f3684090c9 100644
--- a/src/main/java/net/minecraft/world/level/block/CommandBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/CommandBlock.java
@@ -152,7 +152,7 @@ public class CommandBlock extends BaseEntityBlock implements GameMasterBlock {
     protected InteractionResult useWithoutItem(BlockState state, Level world, BlockPos pos, Player player, BlockHitResult hit) {
         BlockEntity tileentity = world.getBlockEntity(pos);
 
-        if (tileentity instanceof CommandBlockEntity && player.canUseGameMasterBlocks()) {
+        if (tileentity instanceof CommandBlockEntity && (player.canUseGameMasterBlocks() || (player.isCreative() && player.getBukkitEntity().hasPermission("minecraft.commandblock")))) { // Paper - command block permission
             player.openCommandBlock((CommandBlockEntity) tileentity);
             return InteractionResult.SUCCESS;
         } else {
diff --git a/src/main/java/org/bukkit/craftbukkit/util/permissions/CraftDefaultPermissions.java b/src/main/java/org/bukkit/craftbukkit/util/permissions/CraftDefaultPermissions.java
index 245ad120a36b6defca7e6889faae1ca5fc33d0c7..e0e61115ada9a49d4c528c5d4e02a1ca571d9531 100644
--- a/src/main/java/org/bukkit/craftbukkit/util/permissions/CraftDefaultPermissions.java
+++ b/src/main/java/org/bukkit/craftbukkit/util/permissions/CraftDefaultPermissions.java
@@ -16,6 +16,7 @@ public final class CraftDefaultPermissions {
         DefaultPermissions.registerPermission(CraftDefaultPermissions.ROOT + ".nbt.copy", "Gives the user the ability to copy NBT in creative", org.bukkit.permissions.PermissionDefault.TRUE, parent);
         DefaultPermissions.registerPermission(CraftDefaultPermissions.ROOT + ".debugstick", "Gives the user the ability to use the debug stick in creative", org.bukkit.permissions.PermissionDefault.OP, parent);
         DefaultPermissions.registerPermission(CraftDefaultPermissions.ROOT + ".debugstick.always", "Gives the user the ability to use the debug stick in all game modes", org.bukkit.permissions.PermissionDefault.FALSE/* , parent */); // Paper - should not have this parent, as it's not a "vanilla" utility
+        DefaultPermissions.registerPermission(CraftDefaultPermissions.ROOT + ".commandblock", "Gives the user the ability to use command blocks.", org.bukkit.permissions.PermissionDefault.OP, parent); // Paper
         // Spigot end
         parent.recalculatePermissibles();
     }