PlotSquared/Bukkit/src/main/java/com/plotsquared/bukkit/util/BukkitPermHandler.java

/*
 *       _____  _       _    _____                                _
 *      |  __ \| |     | |  / ____|                              | |
 *      | |__) | | ___ | |_| (___   __ _ _   _  __ _ _ __ ___  __| |
 *      |  ___/| |/ _ \| __|\___ \ / _` | | | |/ _` | '__/ _ \/ _` |
 *      | |    | | (_) | |_ ____) | (_| | |_| | (_| | | |  __/ (_| |
 *      |_|    |_|\___/ \__|_____/ \__, |\__,_|\__,_|_|  \___|\__,_|
 *                                    | |
 *                                    |_|
 *            PlotSquared plot management system for Minecraft
 *                  Copyright (C) 2020 IntellectualSites
 *
 *     This program is free software: you can redistribute it and/or modify
 *     it under the terms of the GNU General Public License as published by
 *     the Free Software Foundation, either version 3 of the License, or
 *     (at your option) any later version.
 *
 *     This program is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *     GNU General Public License for more details.
 *
 *     You should have received a copy of the GNU General Public License
 *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.plotsquared.bukkit.util;

import com.google.inject.Singleton;
import com.plotsquared.core.util.PermHandler;
import net.milkbowl.vault.permission.Permission;
import org.bukkit.Bukkit;
import org.bukkit.plugin.RegisteredServiceProvider;

@Singleton public class BukkitPermHandler extends PermHandler {

    private Permission perms;

    @Override
    public boolean init() {
        if (this.perms == null) {
            setupPermissions();
        }
        return this.perms != null;
    }

    private void setupPermissions() {
        if (Bukkit.getServer().getPluginManager().getPlugin("Vault") == null) {
            return;
        }
        RegisteredServiceProvider<Permission> permissionProvider =
            Bukkit.getServer().getServicesManager().getRegistration(Permission.class);
        if (permissionProvider != null) {
            this.perms = permissionProvider.getProvider();
        }
    }

    @Override public boolean hasPermission(String world, String player, String perm) {
        return this.perms.playerHas(world, Bukkit.getOfflinePlayer(player), perm);
    }
}