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.file;
020
021import lucee.commons.io.res.Resource;
022import lucee.commons.io.res.util.ResourceUtil;
023import lucee.commons.lang.StringUtil;
024import lucee.runtime.PageContext;
025import lucee.runtime.PageContextImpl;
026import lucee.runtime.exp.FunctionException;
027import lucee.runtime.exp.PageException;
028
029public class FileOpen {
030
031        public static Object call(PageContext pc, String path) throws PageException {
032                return call(pc, path,"read",((PageContextImpl)pc).getResourceCharset().name(),false);
033        }
034        public static Object call(PageContext pc, String path,String mode) throws PageException {
035                return call(pc, path,mode,((PageContextImpl)pc).getResourceCharset().name(),false);
036        }
037
038        public static Object call(PageContext pc, String path,String strMode, String charset) throws PageException {
039                return call(pc, path,strMode,charset,false);
040        }
041        
042        public static Object call(PageContext pc, String path,String strMode, String charset,boolean seekable) throws PageException {
043                
044                strMode=strMode.trim().toLowerCase();
045                if(StringUtil.isEmpty(charset,true))
046                        charset=((PageContextImpl)pc).getResourceCharset().name();
047                //try {
048
049                        if("read".equals(strMode)) {
050                                return new FileStreamWrapperRead(check(pc,ResourceUtil.toResourceExisting(pc, path)),charset,seekable);
051                        }
052                        if("readbinary".equals(strMode)) {
053                                return new FileStreamWrapperReadBinary(check(pc,ResourceUtil.toResourceExisting(pc, path)),seekable);
054                        }
055                        if("write".equals(strMode)) {
056                                return new FileStreamWrapperWrite(check(pc,ResourceUtil.toResourceNotExisting(pc, path)),charset,false,seekable);
057                        }
058                        if("append".equals(strMode)) {
059                                return new FileStreamWrapperWrite(check(pc,ResourceUtil.toResourceNotExisting(pc, path)),charset,true,seekable);
060                        }
061                        if("readwrite".equals(strMode)) {
062                                return new FileStreamWrapperReadWrite(check(pc,ResourceUtil.toResourceNotExisting(pc, path)),charset,seekable);
063                        }
064                        
065                        
066                        throw new FunctionException(pc,"FileOpen",2,"mode","invalid value ["+strMode+"], valid values for argument mode are [read,readBinary,append,write,readwrite]");
067                
068                
069                
070        }
071        private static Resource check(PageContext pc, Resource res) throws PageException {
072        pc.getConfig().getSecurityManager().checkFileLocation(res);
073                return res;
074        }
075        
076}