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-rw-r--r--patches/server/0783-Check-requirement-before-suggesting-root-nodes.patch31
1 files changed, 31 insertions, 0 deletions
diff --git a/patches/server/0783-Check-requirement-before-suggesting-root-nodes.patch b/patches/server/0783-Check-requirement-before-suggesting-root-nodes.patch
new file mode 100644
index 0000000000..da19d3f1ca
--- /dev/null
+++ b/patches/server/0783-Check-requirement-before-suggesting-root-nodes.patch
@@ -0,0 +1,31 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: stonar96 <[email protected]>
+Date: Sun, 12 Sep 2021 00:14:21 +0200
+Subject: [PATCH] Check requirement before suggesting root nodes
+
+Child nodes are handled by CommandDispatcher#parse checking
+requirements.
+
+Vanilla clients only send ServerboundCommandSuggestionPacket when
+encountering a command node with ASK_SERVER suggestions, however a
+modified client can send this packet whenever it wants.
+
+diff --git a/src/main/java/com/mojang/brigadier/CommandDispatcher.java b/src/main/java/com/mojang/brigadier/CommandDispatcher.java
+index ca24830bac1a04b798229d1946863429c7849495..5584040fe48c18aa809f5a1510157e735851df79 100644
+--- a/src/main/java/com/mojang/brigadier/CommandDispatcher.java
++++ b/src/main/java/com/mojang/brigadier/CommandDispatcher.java
+@@ -594,10 +594,14 @@ public class CommandDispatcher<S> {
+ int i = 0;
+ for (final CommandNode<S> node : parent.getChildren()) {
+ CompletableFuture<Suggestions> future = Suggestions.empty();
++ // Paper start - Don't suggest if the requirement isn't met
++ if (parent != this.root || node.canUse(context.getSource())) {
+ try {
+ future = node.listSuggestions(context.build(truncatedInput), new SuggestionsBuilder(truncatedInput, truncatedInputLowerCase, start));
+ } catch (final CommandSyntaxException ignored) {
+ }
++ }
++ // Paper end
+ futures[i++] = future;
+ }
+