Add worldedit runtime environment to increase yaml alias limit

This can be set by -Dworldedit.yaml.aliasLimit=XXX in the startup parameter
EngineHub · Sep 11, 2023 · d1e7c13 · d1e7c13
1 parent 18cc29a
commit d1e7c13
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/worldedit-core/src/main/java/com/sk89q/util/yaml/YAMLProcessor.java b/worldedit-core/src/main/java/com/sk89q/util/yaml/YAMLProcessor.java
@@ -97,14 +97,16 @@ public YAMLProcessor(File file, boolean writeDefaults, YAMLFormat format) {
         representer.setDefaultFlowStyle(format.getStyle());
         LoaderOptions loaderOptions = new LoaderOptions();
         try {
+            int yamlAliasLimit = Integer.getInteger("worldedit.yaml.aliasLimit", 50);
+            loaderOptions.setMaxAliasesForCollections(yamlAliasLimit);
             // 64 MB default
             int yamlCodePointLimit = Integer.getInteger("worldedit.yaml.codePointLimit", 64 * 1024 * 1024);
             loaderOptions.setCodePointLimit(yamlCodePointLimit);
         } catch (NoSuchMethodError ignored) {
             // pre-1.32 snakeyaml
         }
 
-        yaml = new Yaml(new SafeConstructor(new LoaderOptions()), representer, dumperOptions, loaderOptions);
+        yaml = new Yaml(new SafeConstructor(loaderOptions), representer, dumperOptions, loaderOptions);
 
         this.file = file;
     }