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PlotSquared, a land and world management plugin for Minecraft.

There is a newer version: 7.4.1

/*
 * PlotSquared, a land and world management plugin for Minecraft.
 * Copyright (C) IntellectualSites 
 * Copyright (C) IntellectualSites team and contributors
 *
 * 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 .
 */
package com.plotsquared.core.util;

public class PremiumVerification {

    private static Boolean usingPremium;

    /**
     * @return Account ID if downloaded through SpigotMC
     */
    public static String getUserID() {
        return "%%__USER__%%";
    }

    /**
     * @return Resource ID if downloaded through SpigotMC
     */
    public static String getResourceID() {
        return "%%__RESOURCE__%%";
    }

    /**
     * @return Download ID if downloaded through SpigotMC
     */
    public static String getDownloadID() {
        return "%%__NONCE__%%";
    }

    /**
     * @param userID Spigot user ID
     * @return {@code true} if userID does not contain __USER__
     */
    private static Boolean isPremium(String userID) {
        return !userID.contains("__USER__");
    }

    /**
     * Returns true if this plugin is premium
     *
     * @return {@code true} if is premium
     */
    public static Boolean isPremium() {
        return usingPremium == null ? (usingPremium = isPremium(getUserID())) : usingPremium;
    }

}