From 8c6e24a3e5ba8c6be230b23bd9793e0d33fb1166 Mon Sep 17 00:00:00 2001
From: Jesse Boyd <jessepaleg@gmail.com>
Date: Mon, 17 Jul 2017 23:51:01 +1000
Subject: [PATCH] Fix fallback command registration (worldedit bug)

---
 .../com/boydti/fawe/bukkit/FaweBukkit.java    |  2 +
 .../util/FallbackRegistrationListener.java    | 52 +++++++++++++++++++
 2 files changed, 54 insertions(+)
 create mode 100644 bukkit/src/main/java/com/sk89q/bukkit/util/FallbackRegistrationListener.java

diff --git a/bukkit/src/main/java/com/boydti/fawe/bukkit/FaweBukkit.java b/bukkit/src/main/java/com/boydti/fawe/bukkit/FaweBukkit.java
index de8d79f2..3f995e02 100644
--- a/bukkit/src/main/java/com/boydti/fawe/bukkit/FaweBukkit.java
+++ b/bukkit/src/main/java/com/boydti/fawe/bukkit/FaweBukkit.java
@@ -30,6 +30,7 @@ import com.boydti.fawe.regions.FaweMaskManager;
 import com.boydti.fawe.util.MainUtil;
 import com.boydti.fawe.util.ReflectionUtils;
 import com.boydti.fawe.util.TaskManager;
+import com.sk89q.bukkit.util.FallbackRegistrationListener;
 import com.sk89q.worldedit.bukkit.BukkitWorld;
 import com.sk89q.worldedit.bukkit.EditSessionBlockChangeDelegate;
 import com.sk89q.worldedit.bukkit.WorldEditPlugin;
@@ -76,6 +77,7 @@ public class FaweBukkit implements IFawe, Listener {
             setupInjector();
             com.sk89q.worldedit.bukkit.BukkitPlayer.inject(); // Fixes
             BukkitWorld.inject(); // Fixes
+            FallbackRegistrationListener.inject(); // Fixes
             try {
                 new BrushListener(plugin);
             } catch (Throwable e) {
diff --git a/bukkit/src/main/java/com/sk89q/bukkit/util/FallbackRegistrationListener.java b/bukkit/src/main/java/com/sk89q/bukkit/util/FallbackRegistrationListener.java
new file mode 100644
index 00000000..ab5a28ca
--- /dev/null
+++ b/bukkit/src/main/java/com/sk89q/bukkit/util/FallbackRegistrationListener.java
@@ -0,0 +1,52 @@
+/*
+ * WorldEdit, a Minecraft world manipulation toolkit
+ * Copyright (C) sk89q <http://www.sk89q.com>
+ * Copyright (C) WorldEdit team and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.sk89q.bukkit.util;
+
+import com.sk89q.worldedit.WorldEdit;
+import org.bukkit.command.CommandMap;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerCommandPreprocessEvent;
+
+public class FallbackRegistrationListener implements Listener {
+
+    private final CommandMap commandRegistration;
+
+    public FallbackRegistrationListener(CommandMap commandRegistration) {
+        this.commandRegistration = commandRegistration;
+    }
+
+    @EventHandler(ignoreCancelled = true)
+    public void onPlayerCommandPreprocess(PlayerCommandPreprocessEvent event) {
+        boolean doubleSlash = WorldEdit.getInstance().getConfiguration().noDoubleSlash;
+        String msg = event.getMessage();
+        if (doubleSlash || !msg.startsWith("/")) {
+            msg = "/" + msg;
+        }
+        if (commandRegistration.dispatch(event.getPlayer(), msg)) {
+            event.setCancelled(true);
+        }
+    }
+
+    public static Class<?> inject() {
+        return FallbackRegistrationListener.class;
+    }
+
+}