001/**
002 *
003 * Copyright (c) 2014, the Railo Company Ltd. All rights reserved.
004 *
005 * This library is free software; you can redistribute it and/or
006 * modify it under the terms of the GNU Lesser General Public
007 * License as published by the Free Software Foundation; either 
008 * version 2.1 of the License, or (at your option) any later version.
009 * 
010 * This library is distributed in the hope that it will be useful,
011 * but WITHOUT ANY WARRANTY; without even the implied warranty of
012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
013 * Lesser General Public License for more details.
014 * 
015 * You should have received a copy of the GNU Lesser General Public 
016 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
017 * 
018 **/
019package lucee.runtime.functions.system;
020
021import java.io.InputStream;
022import java.util.zip.ZipInputStream;
023
024import lucee.commons.io.IOUtil;
025import lucee.commons.io.res.util.ResourceUtil;
026import lucee.runtime.PageContext;
027
028public class IsZipFile {
029
030        public static boolean call(PageContext pc, String path) {
031                InputStream is=null;
032                boolean hasEntries=false;
033                try {
034                        //ZipEntry ze;
035                        ZipInputStream zis = new ZipInputStream(is=ResourceUtil.toResourceExisting(pc, path).getInputStream());
036                        while ((zis.getNextEntry()) != null ) {
037                        zis.closeEntry();
038                        hasEntries=true;
039                }
040                } catch (Exception e) {
041                        return false;
042                }
043                finally {
044                        IOUtil.closeEL(is);
045                }
046                return hasEntries;
047        }
048}