Fail silently when the Sponge Server is not available - closes #367

common/src/main/java/me/lucko/luckperms/common/data/Importer.java

@@ -32,26 +32,19 @@ import lombok.Setter;
 import com.google.common.base.Splitter;
 import com.google.common.collect.ImmutableSet;
 
-import me.lucko.luckperms.api.Tristate;
 import me.lucko.luckperms.common.commands.CommandManager;
 import me.lucko.luckperms.common.commands.CommandResult;
 import me.lucko.luckperms.common.commands.sender.Sender;
 import me.lucko.luckperms.common.commands.utils.Util;
-import me.lucko.luckperms.common.constants.Constants;
-import me.lucko.luckperms.common.constants.Permission;
 import me.lucko.luckperms.common.locale.Message;
-import me.lucko.luckperms.common.plugin.LuckPermsPlugin;
 import me.lucko.luckperms.common.utils.DateUtil;
-
-import net.kyori.text.Component;
-import net.kyori.text.serializer.ComponentSerializer;
+import me.lucko.luckperms.common.utils.FakeSender;
 
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
-import java.util.UUID;
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.stream.Collectors;
 
@@ -89,7 +82,7 @@ public class Importer implements Runnable {
                 .collect(Collectors.toList());
 
         this.cmdResult = new HashMap<>();
-        this.fake = new FakeSender();
+        this.fake = new FakeSender(commandManager.getPlugin(), this::logMessage);
     }
 
     @Override
@@ -182,59 +175,6 @@ public class Importer implements Runnable {
         }
     }
 
-    private class FakeSender implements Sender {
-
-        @Override
-        public LuckPermsPlugin getPlatform() {
-            return commandManager.getPlugin();
-        }
-
-        @Override
-        public String getName() {
-            return Constants.IMPORT_NAME;
-        }
-
-        @Override
-        public UUID getUuid() {
-            return Constants.IMPORT_UUID;
-        }
-
-        @Override
-        public void sendMessage(String s) {
-            logMessage(s);
-        }
-
-        @Override
-        public void sendMessage(Component message) {
-            logMessage(ComponentSerializer.toLegacy(message, Constants.COLOR_CHAR));
-        }
-
-        @Override
-        public Tristate getPermissionValue(String permission) {
-            return Tristate.TRUE;
-        }
-
-        @Override
-        public boolean hasPermission(String permission) {
-            return true;
-        }
-
-        @Override
-        public boolean hasPermission(Permission permission) {
-            return true;
-        }
-
-        @Override
-        public boolean isConsole() {
-            return true;
-        }
-
-        @Override
-        public boolean isImport() {
-            return true;
-        }
-    }
-
     @Getter
     @Setter
     private static class Result {

common/src/main/java/me/lucko/luckperms/common/utils/FakeSender.java

@@ -0,0 +1,96 @@
+/*
+ * This file is part of LuckPerms, licensed under the MIT License.
+ *
+ *  Copyright (c) lucko (Luck) <luck@lucko.me>
+ *  Copyright (c) contributors
+ *
+ *  Permission is hereby granted, free of charge, to any person obtaining a copy
+ *  of this software and associated documentation files (the "Software"), to deal
+ *  in the Software without restriction, including without limitation the rights
+ *  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *  copies of the Software, and to permit persons to whom the Software is
+ *  furnished to do so, subject to the following conditions:
+ *
+ *  The above copyright notice and this permission notice shall be included in all
+ *  copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ *  SOFTWARE.
+ */
+
+package me.lucko.luckperms.common.utils;
+
+import lombok.AllArgsConstructor;
+
+import me.lucko.luckperms.api.Tristate;
+import me.lucko.luckperms.common.commands.sender.Sender;
+import me.lucko.luckperms.common.constants.Constants;
+import me.lucko.luckperms.common.constants.Permission;
+import me.lucko.luckperms.common.plugin.LuckPermsPlugin;
+
+import net.kyori.text.Component;
+import net.kyori.text.serializer.ComponentSerializer;
+
+import java.util.UUID;
+import java.util.function.Consumer;
+
+@AllArgsConstructor
+public class FakeSender implements Sender {
+    private final LuckPermsPlugin plugin;
+    private final Consumer<String> messageConsumer;
+
+    @Override
+    public LuckPermsPlugin getPlatform() {
+        return plugin;
+    }
+
+    @Override
+    public String getName() {
+        return Constants.IMPORT_NAME;
+    }
+
+    @Override
+    public UUID getUuid() {
+        return Constants.IMPORT_UUID;
+    }
+
+    @Override
+    public void sendMessage(String s) {
+        messageConsumer.accept(s);
+    }
+
+    @Override
+    public void sendMessage(Component message) {
+        messageConsumer.accept(ComponentSerializer.toLegacy(message, Constants.COLOR_CHAR));
+    }
+
+    @Override
+    public Tristate getPermissionValue(String permission) {
+        return Tristate.TRUE;
+    }
+
+    @Override
+    public boolean hasPermission(String permission) {
+        return true;
+    }
+
+    @Override
+    public boolean hasPermission(Permission permission) {
+        return true;
+    }
+
+    @Override
+    public boolean isConsole() {
+        return true;
+    }
+
+    @Override
+    public boolean isImport() {
+        return true;
+    }
+}

sponge/src/main/java/me/lucko/luckperms/sponge/LPSpongePlugin.java

@@ -64,6 +64,7 @@ import me.lucko.luckperms.common.tasks.ExpireTemporaryTask;
 import me.lucko.luckperms.common.tasks.UpdateTask;
 import me.lucko.luckperms.common.treeview.PermissionVault;
 import me.lucko.luckperms.common.utils.BufferedRequest;
+import me.lucko.luckperms.common.utils.FakeSender;
 import me.lucko.luckperms.common.utils.FileWatcher;
 import me.lucko.luckperms.common.utils.SenderLogger;
 import me.lucko.luckperms.common.verbose.VerboseHandler;
@@ -107,7 +108,9 @@ import java.io.File;
 import java.io.InputStream;
 import java.nio.file.Path;
 import java.util.AbstractCollection;
+import java.util.ArrayList;
 import java.util.Collections;
+import java.util.HashSet;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Optional;
@@ -392,11 +395,19 @@ public class LPSpongePlugin implements LuckPermsPlugin {
 
     @Override
     public Player getPlayer(User user) {
+        if (!game.isServerAvailable()) {
+            return null;
+        }
+
         return game.getServer().getPlayer(uuidCache.getExternalUUID(user.getUuid())).orElse(null);
     }
 
     @Override
     public Optional<UUID> lookupUuid(String username) {
+        if (!game.isServerAvailable()) {
+            return Optional.empty();
+        }
+
         CompletableFuture<GameProfile> fut = game.getServer().getGameProfileManager().get(username);
         try {
             return Optional.of(fut.get().getUniqueId());
@@ -448,26 +459,30 @@ public class LPSpongePlugin implements LuckPermsPlugin {
 
     @Override
     public int getPlayerCount() {
-        return game.getServer().getOnlinePlayers().size();
+        return game.isServerAvailable() ? game.getServer().getOnlinePlayers().size() : 0;
     }
 
     @Override
     public List<String> getPlayerList() {
-        return game.getServer().getOnlinePlayers().stream().map(Player::getName).collect(Collectors.toList());
+        return game.isServerAvailable() ? game.getServer().getOnlinePlayers().stream().map(Player::getName).collect(Collectors.toList()) : new ArrayList<>();
     }
 
     @Override
     public Set<UUID> getOnlinePlayers() {
-        return game.getServer().getOnlinePlayers().stream().map(Player::getUniqueId).collect(Collectors.toSet());
+        return game.isServerAvailable() ? game.getServer().getOnlinePlayers().stream().map(Player::getUniqueId).collect(Collectors.toSet()) : new HashSet<>();
     }
 
     @Override
     public boolean isPlayerOnline(UUID external) {
-        return game.getServer().getPlayer(external).map(Player::isOnline).orElse(false);
+        return game.isServerAvailable() ? game.getServer().getPlayer(external).map(Player::isOnline).orElse(false) : false;
     }
 
     @Override
     public List<Sender> getOnlineSenders() {
+        if (!game.isServerAvailable()) {
+            return new ArrayList<>();
+        }
+
         return game.getServer().getOnlinePlayers().stream()
                 .map(s -> getSenderFactory().wrap(s))
                 .collect(Collectors.toList());
@@ -475,6 +490,9 @@ public class LPSpongePlugin implements LuckPermsPlugin {
 
     @Override
     public Sender getConsoleSender() {
+        if (!game.isServerAvailable()) {
+            return new FakeSender(this, s -> logger.info(s));
+        }
         return getSenderFactory().wrap(game.getServer().getConsole());
     }
 

sponge/src/main/java/me/lucko/luckperms/sponge/SpongeListener.java

@@ -159,9 +159,9 @@ public class SpongeListener {
             if (p.isPresent()) {
                 MutableContextSet context = MutableContextSet.fromSet(plugin.getContextManager().getApplicableContext(p.get()));
 
-                List<String> worlds = plugin.getGame().getServer().getWorlds().stream()
+                List<String> worlds = plugin.getGame().isServerAvailable() ? plugin.getGame().getServer().getWorlds().stream()
                         .map(World::getName)
-                        .collect(Collectors.toList());
+                        .collect(Collectors.toList()) : Collections.emptyList();
 
                 plugin.doAsync(() -> {
                     UserData data = user.getUserData();

sponge/src/main/java/me/lucko/luckperms/sponge/messaging/BungeeMessagingService.java

@@ -67,6 +67,10 @@ public class BungeeMessagingService extends AbstractMessagingService implements
     @Override
     protected void sendMessage(String channel, String message) {
         plugin.getSpongeScheduler().createTaskBuilder().interval(10, TimeUnit.SECONDS).execute(task -> {
+            if (!plugin.getGame().isServerAvailable()) {
+                return;
+            }
+
             Collection<Player> players = plugin.getGame().getServer().getOnlinePlayers();
             Player p = Iterables.getFirst(players, null);
             if (p == null) {