content: /*
   * Copyright (c) 2019-2020 5zig Reborn
   * Copyright (c) 2015-2019 5zig
   *
   * This file is part of The 5zig Mod
   * The 5zig Mod 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.
   *
   * The 5zig Mod 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 The 5zig Mod.  If not, see <http://www.gnu.org/licenses/>.
   */
  
  package eu.the5zig.mod.util;
  
  import java.io.File;
  import java.net.URI;
  import java.net.URL;
  import java.net.URLClassLoader;
  import java.util.zip.ZipFile;
  
  public class EnvironmentUtils {
  
  	private EnvironmentUtils() {
  	}
  
  	public static ZipFile getModFile() {
  		try {
  			URLClassLoader ucl = (URLClassLoader) Thread.currentThread().getContextClassLoader();
  
  			URL[] urls = ucl.getURLs();
  			for (URL url : urls) {
  				ZipFile zipFile = getZipFile(url);
  				if (zipFile != null) {
  					return zipFile;
  				}
  			}
  		} catch (Exception ignored) {
  		}
  		return null;
  	}
  
  	private static ZipFile getZipFile(URL url) {
  		try {
  			URI uri = url.toURI();
  
  			File file = new File(uri);
  
  			ZipFile zipFile = new ZipFile(file);
  			if (zipFile.getEntry("eu/the5zig/mod/The5zigMod.class") == null) {
  				zipFile.close();
  				return null;
  			}
  			return zipFile;
  		} catch (Exception ignored) {
  			return null;
  		}
  	}
  
  }
  