/*
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Dateiverwaltung - File management in your browser
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Copyright (C) 2017 Ulrich Hilger, http://uhilger.de
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as
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published by the Free Software Foundation, either version 3 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package de.uhilger.filecms.api;
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import de.uhilger.filecms.data.FileRef;
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import de.uhilger.filecms.pub.AbstractComparator;
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import de.uhilger.filecms.pub.FileNameComparator;
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import de.uhilger.filecms.pub.ImgFileFilter;
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import de.uhilger.wbx.Bild;
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import de.uhilger.wbx.WbxUtils;
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import static de.uhilger.wbx.WbxUtils.EMPTY_STRING;
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import static de.uhilger.wbx.WbxUtils.WBX_FILE_BASE;
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import de.uhilger.wbx.data.Inhalt;
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import de.uhilger.wbx.web.TNServlet;
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import java.io.File;
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import java.io.FileFilter;
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import java.io.FileInputStream;
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import java.io.FileNotFoundException;
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import java.io.FileOutputStream;
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import java.io.FileReader;
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import java.io.FileWriter;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.Reader;
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import java.security.Principal;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Collections;
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import java.util.Comparator;
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import java.util.Enumeration;
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import java.util.Iterator;
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import java.util.List;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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import java.util.zip.Adler32;
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import java.util.zip.CheckedOutputStream;
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import java.util.zip.ZipEntry;
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import java.util.zip.ZipFile;
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import java.util.zip.ZipOutputStream;
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import javax.servlet.http.HttpServletRequest;
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import net.coobird.thumbnailator.Thumbnails;
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import org.apache.commons.io.FileUtils;
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import org.apache.commons.io.filefilter.WildcardFileFilter;
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/**
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* Methoden zur Verwaltung von Dateien
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*/
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public class FileMgr extends Api {
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private static final Logger logger = Logger.getLogger(FileMgr.class.getName());
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public static final int OP_COPY = 1;
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public static final int OP_MOVE = 2;
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public static final String DOT = ".";
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public String hallo() {
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return "Hallo Welt!";
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}
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/**
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* Inhalte der WebBox listen. Hier wird nur der relative Pfad
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* ausgehend von www oder home ausgegeben sowie zudem ausgehend
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* von $daten und $basis, sofern der Benutzer die Rolle wbxAdmin hat.
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*
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* Andere Inhalte werden nicht ausgegeben.
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*
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* @param relPath
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* @return
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*/
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public List<FileRef> list(String relPath) {
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return listInt(relPath, "name", AbstractComparator.ORDER_ASC);
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}
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public List<FileRef> listOrdered(String relPath, String orderBy, String order) {
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return listInt(relPath, orderBy, order);
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}
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/**
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* Inhalte der WebBox listen. Hier wird nur der relative Pfad
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* ausgehend von www oder home ausgegeben sowie zudem ausgehend
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* von $daten und $basis, sofern der Benutzer die Rolle wbxAdmin hat.
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*
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* Andere Inhalte werden nicht ausgegeben.
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*
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* @param relPath
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* @param orderBy 'name'
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* @param order AbstractComparator.ORDER_ASC oder AbstractComparator.ORDER_DESC
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* @return
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*/
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private List<FileRef> listInt(String relPath, String orderBy, String order) {
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Bild bild = new Bild();
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List<FileRef> files = new ArrayList();
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if (!relPath.startsWith(".") && !relPath.contains("WEB-INF") && !relPath.contains("META-INF")) {
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if (relPath.length() == 0) {
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FileRef namedPublicFolder = new FileRef(PUB_DIR_NAME, true);
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logger.finer(namedPublicFolder.getAbsolutePath());
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FileRef namedHomeFolder = new FileRef(HOME_DIR_NAME, true);
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logger.finer(namedHomeFolder.getAbsolutePath());
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FileRef namedDavFolder = new FileRef(DAV_DIR_NAME, true);
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logger.finer(namedDavFolder.getAbsolutePath());
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files = new ArrayList();
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files.add(namedHomeFolder);
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files.add(namedPublicFolder);
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files.add(namedDavFolder);
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if (getRequest().isUserInRole(WBX_ADMIN_ROLE)) {
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FileRef namedBaseFolder = new FileRef(WBX_BASE, true);
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FileRef namedDataFolder = new FileRef(WBX_DATA, true);
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files.add(namedBaseFolder);
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files.add(namedDataFolder);
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}
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} else {
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String path = getTargetDir(relPath).getAbsolutePath();
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logger.fine("listing path: " + path);
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File dir = new File(path);
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if (dir.exists()) {
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File[] fileArray = dir.listFiles(new ImgFileFilter());
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if (orderBy != null && orderBy.equalsIgnoreCase("name")) {
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Arrays.sort(fileArray, new FileNameComparator(order));
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} else {
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Arrays.sort(fileArray, new FileNameComparator(AbstractComparator.ORDER_ASC));
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}
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for (int i = 0; i < fileArray.length; i++) {
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logger.fine(fileArray[i].toURI().toString());
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String fname = fileArray[i].toURI().toString().replace("file:/", "");
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if (fileArray[i].isDirectory()) {
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fname = fname.substring(0, fname.length() - 1);
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}
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logger.fine(fname);
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if(!fname.contains("WEB-INF") && !fname.contains("META-INF")) {
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long fLen = fileArray[i].length();
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long lastMod = fileArray[i].lastModified();
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FileRef ref = new FileRef(fname, fileArray[i].isDirectory(), fileArray[i].isHidden(), lastMod, fLen);
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ref.setMimetype(bild.getMimeType(fileArray[i]));
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files.add(ref);
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}
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}
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}
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}
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}
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return files;
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}
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public List<Inhalt> collect(String relativePath, int maxTiefe, int maxAnzahl, int len) {
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WbxUtils wu = new WbxUtils();
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HttpServletRequest req = getRequest();
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String requestUrl = req.getRequestURL().toString();
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String contextPath = req.getContextPath();
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return wu.collectFiles(requestUrl, contextPath, relativePath, maxTiefe, maxAnzahl, len);
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}
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public FileRef newFolder(String relPath, String folderName) {
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if (!relPath.startsWith(".")) {
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logger.finer(relPath);
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String targetPath = null;
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if(relPath.startsWith(PUB_DIR_NAME)) {
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targetPath = PUB_DIR_PATH + getUserName() + "/" + relPath.substring(PUB_DIR_NAME.length()) + "/" + folderName;
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} else if(relPath.startsWith(HOME_DIR_NAME)) {
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targetPath = HOME_DIR_PATH + getUserName() + "/" + relPath.substring(HOME_DIR_NAME.length()) + "/" + folderName;
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} else {
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// kann eigentlich nicht sein..
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}
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logger.finer(targetPath);
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File targetDir = new File(getBase().getAbsolutePath(), targetPath);
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targetDir.mkdirs();
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return new FileRef(targetDir.getAbsolutePath(), true);
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} else {
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return null;
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}
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}
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public String getCode(String relPath, String fileName) {
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String code = null;
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if (!relPath.startsWith(".")) {
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Object p = getRequest().getUserPrincipal();
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if (p instanceof Principal) {
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Reader reader = null;
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try {
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File targetFile = new File(getTargetDir(relPath), fileName);
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//reader = new InputStreamReader(new FileInputStream(targetFile), "UTF8");
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reader = new FileReader(targetFile);
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StringBuffer buf = new StringBuffer();
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char[] readBuffer = new char[1024];
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int charsRead = reader.read(readBuffer);
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while (charsRead > -1) {
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buf.append(readBuffer, 0, charsRead);
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charsRead = reader.read(readBuffer);
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}
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code = buf.toString();
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} catch (FileNotFoundException ex) {
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Logger.getLogger(FileMgr.class.getName()).log(Level.SEVERE, null, ex);
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} catch (IOException ex) {
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Logger.getLogger(FileMgr.class.getName()).log(Level.SEVERE, null, ex);
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} finally {
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try {
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reader.close();
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} catch (IOException ex) {
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Logger.getLogger(FileMgr.class.getName()).log(Level.SEVERE, null, ex);
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}
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}
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}
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}
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return code;
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}
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public String renameFile(String relPath, String fname, String newName) {
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if (!relPath.startsWith(".")) {
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File targetDir = getTargetDir(relPath);
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File file = new File(targetDir, fname);
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if(fname.endsWith(TNServlet.JPEG) || fname.endsWith(TNServlet.JPG) || fname.endsWith(TNServlet.PNG)) {
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renameImgFiles(targetDir, file, newName);
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} else {
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file.renameTo(new File(targetDir, newName));
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}
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return fname + " umbenannt zu " + newName;
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} else {
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return "Pfad nicht erlaubt.";
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}
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}
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public void renameImgFiles(File targetDir, File targetFile, String newName) {
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String alt;
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String neu;
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int newdotpos = newName.lastIndexOf(DOT);
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String newfname = newName.substring(0, newdotpos);
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String newext = newName.substring(newdotpos);
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logger.fine("newfname: " + newfname + ", newext: " + newext);
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String fnameext = targetFile.getName();
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int dotpos = fnameext.lastIndexOf(DOT);
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String fname = fnameext.substring(0, dotpos);
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String ext = fnameext.substring(dotpos);
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logger.fine("fname: " + fname + ", ext: " + ext);
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FileFilter fileFilter = new WildcardFileFilter(fname + "*" + ext);
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File[] files = targetDir.listFiles(fileFilter);
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for (int i = 0; i < files.length; i++) {
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alt = files[i].getName();
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logger.fine("alt: " + alt);
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if(alt.contains(TNServlet.TN)) {
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neu = newfname + TNServlet.TN + newext;
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} else if (alt.contains(TNServlet.KL)) {
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neu = newfname + TNServlet.KL + newext;
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} else if(alt.contains(TNServlet.GR)) {
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neu = newfname + TNServlet.GR + newext;
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} else if(alt.contains(TNServlet.MT)) {
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neu = newfname + TNServlet.MT + newext;
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} else if(alt.contains(TNServlet.SM)) {
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neu = newfname + TNServlet.SM + newext;
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} else {
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neu = newName;
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}
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files[i].renameTo(new File(targetDir, neu));
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logger.fine("neu: " + neu);
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}
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}
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public String deleteFiles(String relPath, List fileNames) {
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String result = null;
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try {
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logger.fine(fileNames.toString());
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if (!relPath.startsWith(DOT)) {
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File targetDir = getTargetDir(relPath);
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for(int i=0; i < fileNames.size(); i++) {
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Object o = fileNames.get(i);
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if(o instanceof ArrayList) {
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ArrayList al = (ArrayList) o;
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logger.fine(al.get(0).toString());
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File targetFile = new File(targetDir, al.get(0).toString());
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logger.fine(targetFile.getAbsolutePath());
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if(targetFile.isDirectory()) {
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FileUtils.deleteDirectory(targetFile);
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} else {
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/*
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Wenn targetFile mit jpg, jpeg oder png endet,
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muss eine Unterfunktion eine Liste aller Dateien bilden,
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die so heissen, also z.B. alle [Dateiname]*.jpg
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*/
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String fname = targetFile.getName().toLowerCase();
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if(fname.endsWith(TNServlet.JPEG) || fname.endsWith(TNServlet.JPG) || fname.endsWith(TNServlet.PNG)) {
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deleteImgFiles(targetDir, targetFile);
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} else {
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targetFile.delete();
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}
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}
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}
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}
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result = "deleted";
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}
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} catch (Throwable ex) {
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logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
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}
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return result;
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}
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public void deleteImgFiles(File targetDir, File targetFile) {
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String fnameext = targetFile.getName();
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int dotpos = fnameext.lastIndexOf(DOT);
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String fname = fnameext.substring(0, dotpos);
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String ext = fnameext.substring(dotpos);
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logger.fine("fname: " + fname + ", ext: " + ext);
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FileFilter fileFilter = new WildcardFileFilter(fname + "*" + ext);
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File[] files = targetDir.listFiles(fileFilter);
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for (int i = 0; i < files.length; i++) {
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logger.fine(files[i].getName());
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files[i].delete();
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}
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}
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public String copyFiles(String fromPath, String toPath, List fileNames) {
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return copyOrMoveFiles(fromPath, toPath, fileNames, OP_COPY);
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}
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public String moveFiles(String fromPath, String toPath, List fileNames) {
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return copyOrMoveFiles(fromPath, toPath, fileNames, OP_MOVE);
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}
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private String copyOrMoveFiles(String fromPath, String toPath, List fileNames, int operation) {
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String result = null;
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try {
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if (!fromPath.startsWith(".")) {
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File srcDir = getTargetDir(fromPath);
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File targetDir = getTargetDir(toPath);
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Iterator i = fileNames.iterator();
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while(i.hasNext()) {
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Object o = i.next();
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if (o instanceof ArrayList) {
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ArrayList al = (ArrayList) o;
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File srcFile = new File(srcDir, al.get(0).toString());
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if(srcFile.isDirectory()) {
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if(operation == OP_MOVE) {
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FileUtils.moveDirectoryToDirectory(srcFile, targetDir, false);
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} else {
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FileUtils.copyDirectoryToDirectory(srcFile, targetDir);
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}
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} else {
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if(operation == OP_MOVE) {
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FileUtils.moveFileToDirectory(srcFile, targetDir, false);
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} else {
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FileUtils.copyFileToDirectory(srcFile, targetDir);
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}
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}
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}
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}
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}
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} catch (IOException ex) {
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logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
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}
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return result;
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}
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public FileRef saveTextFileAs(String relPath, String fileName, String contents) {
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FileRef savedFile = null;
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logger.fine(relPath + " " + fileName);
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if (!relPath.startsWith(".")) {
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//FileRef datenRef = getBase();
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Object p = getRequest().getUserPrincipal();
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if(p instanceof Principal) {
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File targetFile = new File(getTargetDir(relPath), fileName);
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if(targetFile.exists()) {
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targetFile = getNewFileName(targetFile);
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} else {
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targetFile.getParentFile().mkdirs();
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}
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saveToFile(targetFile, contents);
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}
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}
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return savedFile;
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}
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private File getNewFileName(File file) {
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File dir = file.getParentFile();
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String targetName = file.getName();
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logger.fine("targetName: " + targetName);
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String ext = "";
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int dotpos = targetName.indexOf(".");
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if(dotpos > -1) {
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ext = targetName.substring(dotpos);
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targetName = targetName.substring(0, dotpos);
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}
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logger.fine("targetName: " + targetName + ", ext: " + ext);
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int i = 1;
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while(file.exists()) {
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StringBuffer buf = new StringBuffer();
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buf.append(targetName);
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buf.append("-");
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buf.append(i);
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if(ext.length() > 0) {
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buf.append(ext);
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}
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file = new File(dir, buf.toString());
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i++;
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}
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logger.fine("new file: " + file.getName());
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return file;
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}
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private FileRef saveToFile(File targetFile, String contents) {
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FileRef savedFile = null;
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try {
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targetFile.createNewFile();
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FileWriter w = new FileWriter(targetFile);
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//w.write(StringEscapeUtils.unescapeHtml(contents));
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w.write(contents);
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w.flush();
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w.close();
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savedFile = new FileRef(
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targetFile.getAbsolutePath(),
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targetFile.isDirectory(),
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targetFile.isHidden(),
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targetFile.lastModified(),
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targetFile.length());
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} catch (IOException ex) {
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logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
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}
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return savedFile;
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}
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public FileRef saveTextFile(String relPath, String fileName, String contents) {
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FileRef savedFile = null;
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logger.fine(relPath + " " + fileName);
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if (!relPath.startsWith(".")) {
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//FileRef datenRef = getBase();
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Object p = getRequest().getUserPrincipal();
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if(p instanceof Principal) {
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File targetFile = new File(getTargetDir(relPath), fileName);
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if(targetFile.exists()) {
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/*
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muss delete() sein?
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pruefen: ueberschreibt der FileWriter den alteen Inhalt oder
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entsteht eine unerwuenschte Mischung aus altem und neuem
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Inhalt?
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*/
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targetFile.delete();
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} else {
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targetFile.getParentFile().mkdirs();
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}
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saveToFile(targetFile, contents);
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}
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}
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return savedFile;
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}
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public String bildVerkleinern(String relPath, String bildName) {
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if (!relPath.startsWith(".")) {
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File dir = getTargetDir(relPath);
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File original = new File(dir, bildName);
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Bild bild = new Bild();
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//for (int i = 0; i < Bild.GR.length; i++) {
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//int gr = bild.getVariantenGroesse(i);
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String ext = "";
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String nurname = bildName;
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int dotpos = bildName.indexOf(".");
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if (dotpos > -1) {
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ext = bildName.substring(dotpos);
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nurname = bildName.substring(0, dotpos);
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}
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// 120, 240, 500, 700, 1200
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for (int i = 0; i < Bild.GR.length; i++) {
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StringBuffer buf = new StringBuffer();
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buf.append(nurname);
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buf.append(bild.getVariantenName(i));
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buf.append(ext);
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File newImgFile = new File(dir, buf.toString());
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try {
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Thumbnails.of(original)
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.size(bild.getVariantenGroesse(i), bild.getVariantenGroesse(i))
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.keepAspectRatio(true)
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.outputQuality(0.7)
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.toFile(newImgFile);
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} catch (IOException ex) {
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logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
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}
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}
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return "ok";
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} else {
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return "Pfad micht erlaubt.";
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}
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}
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public String bildRotieren(String relPath, String bildName) {
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if (!relPath.startsWith(".")) {
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File dir = getTargetDir(relPath);
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File original = new File(dir, bildName);
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String ext = "";
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String nurname = bildName;
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int dotpos = bildName.indexOf(".");
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if (dotpos > -1) {
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ext = bildName.substring(dotpos);
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nurname = bildName.substring(0, dotpos);
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}
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StringBuffer buf = new StringBuffer();
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buf.append(nurname);
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buf.append("-rot");
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buf.append(ext);
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File newImgFile = new File(dir, buf.toString());
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logger.fine("original: " + original.getAbsolutePath() + " newImgFile: " + newImgFile.getAbsolutePath());
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try {
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Thumbnails.of(original)
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.scale(1)
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.rotate(90)
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.toFile(newImgFile);
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} catch (IOException ex) {
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logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
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}
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return "ok";
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} else {
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return "Pfad micht erlaubt.";
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}
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}
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/* --------- ZIP entpacken ---------------- */
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public String extractZipfile(String relPath, String filename) {
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String result = null;
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if (!relPath.startsWith(".")) {
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try {
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File targetDir = getTargetDir(relPath);
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File archive = new File(targetDir, filename);
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if(extract(archive)) {
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result = "ok";
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} else {
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result = "error while extracting";
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}
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} catch(Exception ex) {
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result = ex.getLocalizedMessage();
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logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
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}
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}
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return result;
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}
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/**
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* extract a given ZIP archive to the folder respective archive resides in
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* @param archive the archive to extract
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* @throws Exception
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*/
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private boolean extract(File archive) throws Exception {
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ZipFile zipfile = new ZipFile(archive);
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Enumeration en = zipfile.entries();
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while(en.hasMoreElements()) {
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ZipEntry zipentry = (ZipEntry) en.nextElement();
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unzip(zipfile, zipentry, archive.getParent());
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}
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zipfile.close();
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return true;
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}
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/**
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* unzip a given entry of a given zip file to a given location
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* @param zipfile the zip file to read an entry from
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* @param zipentry the zip entry to read
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* @param destPath the path to the destination location for the extracted content
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* @throws IOException
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*/
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private void unzip(ZipFile zipfile, ZipEntry zipentry, String destPath) throws IOException {
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byte buf[] = new byte[1024];
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InputStream is = zipfile.getInputStream(zipentry);
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String outFileName = destPath + File.separator + zipentry.getName();
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File file = new File(outFileName);
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if(!zipentry.isDirectory()) {
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file.getParentFile().mkdirs();
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if(!file.exists())
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file.createNewFile();
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FileOutputStream fos = new FileOutputStream(file);
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int i = is.read(buf, 0, 1024);
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while(i > -1) {
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fos.write(buf, 0, i);
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i = is.read(buf, 0, 1024);
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}
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fos.close();
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is.close();
|
} else {
|
file.mkdirs();
|
}
|
}
|
|
/* ------------- Ornder als ZIP packen --------------- */
|
|
public String packFolder(String relPath) {
|
if (!relPath.startsWith(".")) {
|
try {
|
File targetDir = getTargetDir(relPath);
|
File parentDir = targetDir.getParentFile();
|
StringBuffer fname = new StringBuffer();
|
fname.append(targetDir.getName());
|
fname.append(".zip");
|
File archiveFile = new File(parentDir, fname.toString());
|
FileRef folderToPack = new FileRef(targetDir.getAbsolutePath());
|
FileRef archive = new FileRef(archiveFile.getAbsolutePath());
|
pack(folderToPack, archive);
|
return "ok";
|
} catch(Exception ex) {
|
String result = ex.getLocalizedMessage();
|
logger.log(Level.SEVERE, result, ex);
|
return result;
|
}
|
} else {
|
return "Falsche relative Pfadangabe";
|
}
|
}
|
|
/**
|
* pack the contents of a given folder into a new ZIP compressed archive
|
* @param folder the folder to pack
|
* @param archive the archive to create from the given files
|
* @throws Exception
|
*/
|
private boolean pack(FileRef folder, FileRef archive) throws Exception {
|
File file = new File(archive.getAbsolutePath());
|
FileOutputStream fos = new FileOutputStream(file);
|
CheckedOutputStream checksum = new CheckedOutputStream(fos, new Adler32());
|
ZipOutputStream zos = new ZipOutputStream(checksum);
|
pack(zos, folder.getAbsolutePath(), "");
|
zos.flush();
|
zos.finish();
|
zos.close();
|
fos.flush();
|
fos.close();
|
return true;
|
}
|
|
/**
|
* go through the given file structure recursively
|
* @param zipFile the ZIP file to write to
|
* @param srcDir the directory to pack during this cycle
|
* @param subDir the subdirectory to append to names of file entries inside the archive
|
* @throws IOException
|
*/
|
private void pack(ZipOutputStream zipFile, String srcDir, String subDir) throws IOException {
|
File[] files = new File(srcDir).listFiles();
|
for(int i = 0; i < files.length; i++) {
|
if(files[i].isDirectory()) {
|
pack(zipFile, files[i].getAbsolutePath(), subDir + File.separator + files[i].getName());
|
}
|
else {
|
packFile(zipFile, subDir, files[i]);
|
}
|
}
|
}
|
|
/**
|
* pack a given file
|
* @param zipFile the ZIP archive to pack to
|
* @param dir the directory name to append to name of file entry inside archive
|
* @param file the file to pack
|
* @throws IOException
|
*/
|
private void packFile(ZipOutputStream zipFile, String dir, File file) throws IOException
|
{
|
FileInputStream fileinputstream = new FileInputStream(file);
|
byte buf[] = new byte[fileinputstream.available()];
|
fileinputstream.read(buf);
|
String dirWithSlashes = dir.replace('\\', '/');
|
//System.out.println("zipping " + dirWithSlashes + "/" + file.getName());
|
ZipEntry ze = new ZipEntry(dirWithSlashes + "/" + file.getName());
|
ze.setMethod(ZipEntry.DEFLATED);
|
zipFile.putNextEntry(ze);
|
zipFile.write(buf, 0, buf.length);
|
zipFile.closeEntry();
|
fileinputstream.close();
|
}
|
|
|
|
/* ---- Hilfsfunktionen ---- */
|
|
}
|
