From f4f96127894fd5f954dc4c19cfcca0128492cf89 Mon Sep 17 00:00:00 2001
From: Luck <git@lucko.me>
Date: Fri, 23 Dec 2016 10:14:41 +0000
Subject: [PATCH] Fix MongoDB auth-less connection

---
 .../storage/backing/MongoDBBacking.java       | 28 +++++++++++++++----
 1 file changed, 22 insertions(+), 6 deletions(-)

diff --git a/common/src/main/java/me/lucko/luckperms/common/storage/backing/MongoDBBacking.java b/common/src/main/java/me/lucko/luckperms/common/storage/backing/MongoDBBacking.java
index 33b03518..cb7f2b1e 100644
--- a/common/src/main/java/me/lucko/luckperms/common/storage/backing/MongoDBBacking.java
+++ b/common/src/main/java/me/lucko/luckperms/common/storage/backing/MongoDBBacking.java
@@ -122,18 +122,34 @@ public class MongoDBBacking extends AbstractBacking {
 
     @Override
     public void init() {
-        MongoCredential credential = MongoCredential.createCredential(
-                configuration.getUsername(),
-                configuration.getDatabase(),
-                configuration.getPassword().toCharArray()
-        );
+        MongoCredential credential = null;
+
+        if (configuration.getUsername() != null && !configuration.getUsername().equals("") && configuration.getDatabase() != null && !configuration.getDatabase().equals("")) {
+            if (configuration.getPassword() == null || configuration.getPassword().equals("")) {
+                credential = MongoCredential.createCredential(
+                        configuration.getUsername(),
+                        configuration.getDatabase(), null
+                );
+            } else {
+                credential = MongoCredential.createCredential(
+                        configuration.getUsername(),
+                        configuration.getDatabase(),
+                        configuration.getPassword().toCharArray()
+                );
+            }
+        }
 
         ServerAddress address = new ServerAddress(
                 configuration.getAddress().split(":")[0],
                 Integer.parseInt(configuration.getAddress().split(":")[1])
         );
 
-        mongoClient = new MongoClient(address, Collections.singletonList(credential));
+        if (credential == null) {
+            mongoClient = new MongoClient(address, Collections.emptyList());
+        } else {
+            mongoClient = new MongoClient(address, Collections.singletonList(credential));
+        }
+
         database = mongoClient.getDatabase(configuration.getDatabase());
         setAcceptingLogins(true);
     }