Spigot: programmatically add Geyser permissions and fix reloading

bootstrap/spigot/src/main/java/org/geysermc/geyser/platform/spigot/GeyserSpigotPlugin.java

@@ -32,6 +32,8 @@ import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
 import me.lucko.commodore.CommodoreProvider;
 import org.bukkit.Bukkit;
 import org.bukkit.command.PluginCommand;
+import org.bukkit.permissions.Permission;
+import org.bukkit.permissions.PermissionDefault;
 import org.bukkit.plugin.java.JavaPlugin;
 import org.geysermc.common.PlatformType;
 import org.geysermc.geyser.Constants;
@@ -39,6 +41,7 @@ import org.geysermc.geyser.GeyserBootstrap;
 import org.geysermc.geyser.GeyserImpl;
 import org.geysermc.geyser.adapters.spigot.SpigotAdapters;
 import org.geysermc.geyser.command.CommandManager;
+import org.geysermc.geyser.command.GeyserCommand;
 import org.geysermc.geyser.configuration.GeyserConfiguration;
 import org.geysermc.geyser.dump.BootstrapDumpInfo;
 import org.geysermc.geyser.level.WorldManager;
@@ -61,10 +64,16 @@ import java.io.IOException;
 import java.net.SocketAddress;
 import java.nio.file.Path;
 import java.util.List;
+import java.util.Map;
 import java.util.UUID;
 import java.util.logging.Level;
 
 public class GeyserSpigotPlugin extends JavaPlugin implements GeyserBootstrap {
+    /**
+     * Determines if the plugin has been ran once before, including before /geyser reload.
+     */
+    private static boolean INITIALIZED = false;
+
     private GeyserSpigotCommandManager geyserCommandManager;
     private GeyserSpigotConfiguration geyserConfig;
     private GeyserSpigotInjector geyserInjector;
@@ -232,14 +241,32 @@ public class GeyserSpigotPlugin extends JavaPlugin implements GeyserBootstrap {
             }
             geyserLogger.debug("Using default world manager: " + this.geyserWorldManager.getClass());
         }
-        GeyserSpigotBlockPlaceListener blockPlaceListener = new GeyserSpigotBlockPlaceListener(geyser, this.geyserWorldManager);
-        Bukkit.getServer().getPluginManager().registerEvents(blockPlaceListener, this);
-
-        Bukkit.getServer().getPluginManager().registerEvents(new GeyserPistonListener(geyser, this.geyserWorldManager), this);
 
         PluginCommand pluginCommand = this.getCommand("geyser");
         pluginCommand.setExecutor(new GeyserSpigotCommandExecutor(geyser));
 
+        if (!INITIALIZED) {
+            // Register permissions so they appear in, for example, LuckPerms' UI
+            // Re-registering permissions throws an error
+            for (Map.Entry<String, GeyserCommand> entry : geyserCommandManager.getCommands().entrySet()) {
+                GeyserCommand command = entry.getValue();
+                if (command.getAliases().contains(entry.getKey())) {
+                    // Don't register aliases
+                    continue;
+                }
+
+                Bukkit.getPluginManager().addPermission(new Permission(command.getPermission(),
+                        GeyserLocale.getLocaleStringLog(command.getDescription()),
+                        command.isSuggestedOpOnly() ? PermissionDefault.OP : PermissionDefault.TRUE));
+            }
+
+            // Events cannot be unregistered - re-registering results in duplicate firings
+            GeyserSpigotBlockPlaceListener blockPlaceListener = new GeyserSpigotBlockPlaceListener(geyser, this.geyserWorldManager);
+            Bukkit.getServer().getPluginManager().registerEvents(blockPlaceListener, this);
+
+            Bukkit.getServer().getPluginManager().registerEvents(new GeyserPistonListener(geyser, this.geyserWorldManager), this);
+        }
+
         boolean brigadierSupported = CommodoreProvider.isSupported();
         geyserLogger.debug("Brigadier supported? " + brigadierSupported);
         if (brigadierSupported) {
@@ -248,6 +275,8 @@ public class GeyserSpigotPlugin extends JavaPlugin implements GeyserBootstrap {
 
         // Check to ensure the current setup can support the protocol version Geyser uses
         GeyserSpigotVersionChecker.checkForSupportedProtocol(geyserLogger, isViaVersion);
+
+        INITIALIZED = true;
     }
 
     @Override

bootstrap/spigot/src/main/resources/plugin.yml

@@ -9,34 +9,3 @@ commands:
   geyser:
     description: The main command for Geyser.
     usage: /geyser <subcommand>
-permissions:
-  geyser.command.help:
-    description: Shows help for all registered commands.
-    default: true
-  geyser.command.offhand:
-    description: Puts an items in your offhand.
-    default: true
-  geyser.command.advancements:
-    description: Shows the advancements of the player on the server.
-    default: true
-  geyser.command.tooltips:
-    description: Toggles showing advanced tooltips on your items.
-    default: true
-  geyser.command.statistics:
-    description: Shows the statistics of the player on the server.
-    default: true
-  geyser.command.settings:
-    description: Modify user settings
-    default: true
-  geyser.command.list:
-    description: List all players connected through Geyser.
-    default: op
-  geyser.command.dump:
-    description: Dumps Geyser debug information for bug reports.
-    default: op
-  geyser.command.reload:
-    description: Reloads the Geyser configurations. Kicks all players when used!
-    default: false
-  geyser.command.version:
-    description: Shows the current Geyser version and checks for updates.
-    default: op

core/src/main/java/org/geysermc/geyser/command/GeyserCommand.java

@@ -86,4 +86,13 @@ public abstract class GeyserCommand {
     public boolean isBedrockOnly() {
         return false;
     }
+
+    /**
+     * Used for permission defaults on server implementations.
+     *
+     * @return if this command is designated to be used only by server operators.
+     */
+    public boolean isSuggestedOpOnly() {
+        return false;
+    }
 }

core/src/main/java/org/geysermc/geyser/command/defaults/DumpCommand.java

@@ -145,4 +145,9 @@ public class DumpCommand extends GeyserCommand {
     public List<String> getSubCommands() {
         return Arrays.asList("offline", "full", "logs");
     }
+
+    @Override
+    public boolean isSuggestedOpOnly() {
+        return true;
+    }
 }

core/src/main/java/org/geysermc/geyser/command/defaults/ListCommand.java

@@ -51,4 +51,9 @@ public class ListCommand extends GeyserCommand {
 
         sender.sendMessage(message);
     }
+
+    @Override
+    public boolean isSuggestedOpOnly() {
+        return true;
+    }
 }

core/src/main/java/org/geysermc/geyser/command/defaults/ReloadCommand.java

@@ -54,4 +54,9 @@ public class ReloadCommand extends GeyserCommand {
         geyser.getSessionManager().disconnectAll("geyser.commands.reload.kick");
         geyser.reload();
     }
+
+    @Override
+    public boolean isSuggestedOpOnly() {
+        return true;
+    }
 }

core/src/main/java/org/geysermc/geyser/command/defaults/StopCommand.java

@@ -54,4 +54,9 @@ public class StopCommand extends GeyserCommand {
 
         geyser.getBootstrap().onDisable();
     }
+
+    @Override
+    public boolean isSuggestedOpOnly() {
+        return true;
+    }
 }

core/src/main/java/org/geysermc/geyser/command/defaults/VersionCommand.java

@@ -100,4 +100,9 @@ public class VersionCommand extends GeyserCommand {
             }
         }
     }
+
+    @Override
+    public boolean isSuggestedOpOnly() {
+        return true;
+    }
 }