Handle out of bound lines.

EngineHub · Apr 26, 2017 · 5a460b4 · 5a460b4
1 parent 14c2a86
commit 5a460b4
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/main/java/com/sk89q/craftbook/mechanics/signcopier/SignEditCommands.java b/src/main/java/com/sk89q/craftbook/mechanics/signcopier/SignEditCommands.java
@@ -33,6 +33,10 @@ public void editSign(CommandContext context, CommandSender sender) throws Comman
         int line = context.getInteger(0, 0);
         String text = context.getString(1, "");
 
+        if (line < 1 || line > 4) {
+            throw new FastCommandException("Line out of bounds. Must be between 1 and 4.");
+        }
+
         String[] signCache = SignCopier.signs.get(sender.getName());
         signCache[line - 1] = text;
         SignCopier.signs.put(sender.getName(), signCache);