From 332c058bd407c4b6fb30e6bf32b634a72bc68e05 Mon Sep 17 00:00:00 2001
From: ulrich <undisclosed>
Date: Fri, 17 Jan 2020 16:31:42 +0000
Subject: [PATCH] Thumbnails werden nun im jeweiligen Bildordner mit abgelegt und nicht jedesmal 'on the fly' erzeugt.
---
src/java/de/uhilger/filecms/api/FileMgr.java | 687 +++++++++++++++++++++++++++++++++++++++++++++++++-------
1 files changed, 597 insertions(+), 90 deletions(-)
diff --git a/src/java/de/uhilger/filecms/api/FileMgr.java b/src/java/de/uhilger/filecms/api/FileMgr.java
index b8151d8..d62cbb9 100644
--- a/src/java/de/uhilger/filecms/api/FileMgr.java
+++ b/src/java/de/uhilger/filecms/api/FileMgr.java
@@ -1,122 +1,629 @@
+/*
+ Dateiverwaltung - File management in your browser
+ Copyright (C) 2017 Ulrich Hilger, http://uhilger.de
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Affero 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 Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
package de.uhilger.filecms.api;
-import de.uhilger.filesystem.FileRef;
-import de.uhilger.transit.web.RequestKontext;
-import de.uhilger.transit.web.WebKontext;
+import de.uhilger.filecms.data.FileRef;
+import de.uhilger.filecms.pub.AbstractComparator;
+import de.uhilger.filecms.pub.FileNameComparator;
+import de.uhilger.filecms.pub.ImgFileFilter;
+import de.uhilger.wbx.Bild;
+import de.uhilger.wbx.WbxUtils;
+import static de.uhilger.wbx.WbxUtils.EMPTY_STRING;
+import static de.uhilger.wbx.WbxUtils.WBX_FILE_BASE;
+import de.uhilger.wbx.data.Inhalt;
+import de.uhilger.wbx.web.TNServlet;
import java.io.File;
+import java.io.FileFilter;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.Reader;
+import java.security.Principal;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.Enumeration;
+import java.util.Iterator;
+import java.util.List;
+import java.util.logging.Level;
import java.util.logging.Logger;
-import javax.servlet.ServletContext;
+import java.util.zip.Adler32;
+import java.util.zip.CheckedOutputStream;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipFile;
+import java.util.zip.ZipOutputStream;
import javax.servlet.http.HttpServletRequest;
+import net.coobird.thumbnailator.Thumbnails;
+import org.apache.commons.io.FileUtils;
/**
- *
- * @author ulrich
+ * Methoden zur Verwaltung von Dateien
*/
-public class FileMgr implements WebKontext, RequestKontext {
+public class FileMgr extends Api {
private static final Logger logger = Logger.getLogger(FileMgr.class.getName());
- public static final String FILE_BASE = "fileBase";
- private ServletContext ctx;
- private HttpServletRequest req;
+ public static final int OP_COPY = 1;
+ public static final int OP_MOVE = 2;
public String hallo() {
return "Hallo Welt!";
}
- // http://localhost:8097/file-cms/rpc/de.uhilger.filecms.api.FileMgr/getBase/JSONNICE
- public FileRef getBase() {
- FileRef ref = null;
- //String fileBase = getServletContext().getInitParameter(FILE_BASE);
- // -Dfilecms.base=/pfad/zu/daten
- //String fileBase = System.getProperty("filecms.base");
- //File file = new File(fileBase);
- //logger.info(file.getAbsolutePath());
- //logger.info(getWebappsDir().getAbsolutePath());
-
- /*
- file = new File("."); liefert
- /home/ulrich/dev/lib/java/tomcat/tomcat2-8.5.9/bin/.
-
- ..auf der WebBox aber
- /home/ulrich/srv/wbx_probe/.
- ..weil das Startskript dort liegt
-
- der Tomcat der WebBox ist unter
- sys/jrs/tomcat/bin
-
- also z.B.
- /home/ulrich/srv/wbx_probe/sys/jrs/tomcat/bin
-
- das Datenverzeichnis ist z.B. auf
- /home/ulrich/srv/wbx_probe/daten
-
- dann ist das Datenverzeichnis unter
- ../../../daten
-
- Der Ausdruck file = new File("."); liefert stets den
- Ort von dem aus der Java-Prozess gestartet wurde.
-
- Die unten folgende Bestimmung des Datenverzeichnisses
- ist beschraenkt auf das Datenverzeichnis der WebBox,
- entweder relativ zum Startskript der WebBox oder
- dem Startskript von Tomcat, wie es aus Netbeans heraus
- waehrend der Entwicklung genutzt wird.
-
- Besser ware vielleicht eine Bestimmung ueber einen
- Systemparameter -Dfilecms.base=... wie weiter oben
- auskommentiert. Damit liesse sich das file-cms auch
- ohne WebBox einsetzen. Allerdings muss dann das
- Datenverzeichnis im Start-Skript gebildet werden,
- also ausserhalb von Java, wenn es dynamisch aus
- einem Pfad relativ zum Start-Skript erzeugt werden
- soll.
- */
-
- File file = new File(".");
- String path = file.getAbsolutePath();
- path = path.substring(0, path.length() - 1);
- file = new File(path);
- if(path.endsWith("bin")) {
- file = file.getParentFile().getParentFile().getParentFile();
- } else {
-
+ /**
+ * Inhalte der WebBox listen. Hier wird nur der relative Pfad
+ * ausgehend von www oder home ausgegeben sowie zudem ausgehend
+ * von $daten und $basis, sofern der Benutzer die Rolle wbxAdmin hat.
+ *
+ * Andere Inhalte werden nicht ausgegeben.
+ *
+ * @param relPath
+ * @return
+ */
+ public List<FileRef> list(String relPath) {
+ return listInt(relPath, "name", AbstractComparator.ORDER_ASC);
+ }
+
+ public List<FileRef> listOrdered(String relPath, String orderBy, String order) {
+ return listInt(relPath, orderBy, order);
+ }
+
+ /**
+ * Inhalte der WebBox listen. Hier wird nur der relative Pfad
+ * ausgehend von www oder home ausgegeben sowie zudem ausgehend
+ * von $daten und $basis, sofern der Benutzer die Rolle wbxAdmin hat.
+ *
+ * Andere Inhalte werden nicht ausgegeben.
+ *
+ * @param relPath
+ * @param orderBy 'name'
+ * @param order AbstractComparator.ORDER_ASC oder AbstractComparator.ORDER_DESC
+ * @return
+ */
+ private List<FileRef> listInt(String relPath, String orderBy, String order) {
+ Bild bild = new Bild();
+ List<FileRef> files = new ArrayList();
+ if (!relPath.startsWith(".") && !relPath.contains("WEB-INF") && !relPath.contains("META-INF")) {
+ if (relPath.length() == 0) {
+ FileRef namedPublicFolder = new FileRef(PUB_DIR_NAME, true);
+ logger.finer(namedPublicFolder.getAbsolutePath());
+ FileRef namedHomeFolder = new FileRef(HOME_DIR_NAME, true);
+ logger.finer(namedHomeFolder.getAbsolutePath());
+ FileRef namedDavFolder = new FileRef(DAV_DIR_NAME, true);
+ logger.finer(namedDavFolder.getAbsolutePath());
+ files = new ArrayList();
+ files.add(namedHomeFolder);
+ files.add(namedPublicFolder);
+ files.add(namedDavFolder);
+ if (getRequest().isUserInRole(WBX_ADMIN_ROLE)) {
+ FileRef namedBaseFolder = new FileRef(WBX_BASE, true);
+ FileRef namedDataFolder = new FileRef(WBX_DATA, true);
+ files.add(namedBaseFolder);
+ files.add(namedDataFolder);
+ }
+ } else {
+ String path = getTargetDir(relPath).getAbsolutePath();
+ logger.fine("listing path: " + path);
+ File dir = new File(path);
+ if (dir.exists()) {
+ File[] fileArray = dir.listFiles(new ImgFileFilter());
+ if (orderBy != null && orderBy.equalsIgnoreCase("name")) {
+ Arrays.sort(fileArray, new FileNameComparator(order));
+ } else {
+ Arrays.sort(fileArray, new FileNameComparator(AbstractComparator.ORDER_ASC));
+ }
+ for (int i = 0; i < fileArray.length; i++) {
+ logger.fine(fileArray[i].toURI().toString());
+ String fname = fileArray[i].toURI().toString().replace("file:/", "");
+ if (fileArray[i].isDirectory()) {
+ fname = fname.substring(0, fname.length() - 1);
+ }
+ logger.fine(fname);
+ if(!fname.contains("WEB-INF") && !fname.contains("META-INF")) {
+ long fLen = fileArray[i].length();
+ long lastMod = fileArray[i].lastModified();
+ FileRef ref = new FileRef(fname, fileArray[i].isDirectory(), fileArray[i].isHidden(), lastMod, fLen);
+ ref.setMimetype(bild.getMimeType(fileArray[i]));
+ files.add(ref);
+ }
+ }
+ }
+ }
}
- file = new File(file, "daten/");
- ref = new FileRef(file.getAbsolutePath(), file.isDirectory());
- return ref;
+ return files;
+ }
+
+ public List<Inhalt> collect(String relativePath, int maxTiefe, int maxAnzahl, int len) {
+
+ WbxUtils wu = new WbxUtils();
+ HttpServletRequest req = getRequest();
+ String requestUrl = req.getRequestURL().toString();
+ String contextPath = req.getContextPath();
+ return wu.collectFiles(requestUrl, contextPath, relativePath, maxTiefe, maxAnzahl, len);
+ }
+
+ public FileRef newFolder(String relPath, String folderName) {
+ if (!relPath.startsWith(".")) {
+ logger.finer(relPath);
+ String targetPath = null;
+ if(relPath.startsWith(PUB_DIR_NAME)) {
+ targetPath = PUB_DIR_PATH + getUserName() + "/" + relPath.substring(PUB_DIR_NAME.length()) + "/" + folderName;
+ } else if(relPath.startsWith(HOME_DIR_NAME)) {
+ targetPath = HOME_DIR_PATH + getUserName() + "/" + relPath.substring(HOME_DIR_NAME.length()) + "/" + folderName;
+ } else {
+ // kann eigentlich nicht sein..
+ }
+ logger.finer(targetPath);
+ File targetDir = new File(getBase().getAbsolutePath(), targetPath);
+ targetDir.mkdirs();
+ return new FileRef(targetDir.getAbsolutePath(), true);
+ } else {
+ return null;
+ }
+ }
+
+ public String getCode(String relPath, String fileName) {
+ String code = null;
+ if (!relPath.startsWith(".")) {
+ Object p = getRequest().getUserPrincipal();
+ if (p instanceof Principal) {
+ Reader reader = null;
+ try {
+ File targetFile = new File(getTargetDir(relPath), fileName);
+
+ //reader = new InputStreamReader(new FileInputStream(targetFile), "UTF8");
+ reader = new FileReader(targetFile);
+ StringBuffer buf = new StringBuffer();
+ char[] readBuffer = new char[1024];
+ int charsRead = reader.read(readBuffer);
+ while (charsRead > -1) {
+ buf.append(readBuffer, 0, charsRead);
+ charsRead = reader.read(readBuffer);
+ }
+ code = buf.toString();
+ } catch (FileNotFoundException ex) {
+ Logger.getLogger(FileMgr.class.getName()).log(Level.SEVERE, null, ex);
+ } catch (IOException ex) {
+ Logger.getLogger(FileMgr.class.getName()).log(Level.SEVERE, null, ex);
+ } finally {
+ try {
+ reader.close();
+ } catch (IOException ex) {
+ Logger.getLogger(FileMgr.class.getName()).log(Level.SEVERE, null, ex);
+ }
+ }
+
+ }
+ }
+ return code;
+ }
+
+ public String renameFile(String relPath, String fname, String newName) {
+ if (!relPath.startsWith(".")) {
+ File targetDir = getTargetDir(relPath);
+ File file = new File(targetDir, fname);
+ file.renameTo(new File(targetDir, newName));
+ return fname + " umbenannt zu " + newName;
+ } else {
+ return "Pfad nicht erlaubt.";
+ }
+ }
+
+ public String deleteFiles(String relPath, List fileNames) {
+ String result = null;
+ try {
+ logger.fine(fileNames.toString());
+ if (!relPath.startsWith(".")) {
+ File targetDir = getTargetDir(relPath);
+ for(int i=0; i < fileNames.size(); i++) {
+ Object o = fileNames.get(i);
+ if(o instanceof ArrayList) {
+ ArrayList al = (ArrayList) o;
+ logger.fine(al.get(0).toString());
+ File targetFile = new File(targetDir, al.get(0).toString());
+ logger.fine(targetFile.getAbsolutePath());
+ if(targetFile.isDirectory()) {
+ FileUtils.deleteDirectory(targetFile);
+ } else {
+ targetFile.delete();
+ }
+ }
+ }
+ result = "deleted";
+ }
+ } catch (Throwable ex) {
+ logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
+ }
+ return result;
+ }
+
+ public String copyFiles(String fromPath, String toPath, List fileNames) {
+ return copyOrMoveFiles(fromPath, toPath, fileNames, OP_COPY);
+ }
+
+ public String moveFiles(String fromPath, String toPath, List fileNames) {
+ return copyOrMoveFiles(fromPath, toPath, fileNames, OP_MOVE);
+ }
+
+ private String copyOrMoveFiles(String fromPath, String toPath, List fileNames, int operation) {
+ String result = null;
+ try {
+ if (!fromPath.startsWith(".")) {
+ File srcDir = getTargetDir(fromPath);
+ File targetDir = getTargetDir(toPath);
+ Iterator i = fileNames.iterator();
+ while(i.hasNext()) {
+ Object o = i.next();
+ if (o instanceof ArrayList) {
+ ArrayList al = (ArrayList) o;
+ File srcFile = new File(srcDir, al.get(0).toString());
+ if(srcFile.isDirectory()) {
+ if(operation == OP_MOVE) {
+ FileUtils.moveDirectoryToDirectory(srcFile, targetDir, false);
+ } else {
+ FileUtils.copyDirectoryToDirectory(srcFile, targetDir);
+ }
+ } else {
+ if(operation == OP_MOVE) {
+ FileUtils.moveFileToDirectory(srcFile, targetDir, false);
+ } else {
+ FileUtils.copyFileToDirectory(srcFile, targetDir);
+ }
+ }
+ }
+ }
+ }
+ } catch (IOException ex) {
+ logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
+ }
+ return result;
+ }
+
+ public FileRef saveTextFileAs(String relPath, String fileName, String contents) {
+ FileRef savedFile = null;
+ logger.fine(relPath + " " + fileName);
+ if (!relPath.startsWith(".")) {
+ //FileRef datenRef = getBase();
+ Object p = getRequest().getUserPrincipal();
+ if(p instanceof Principal) {
+ File targetFile = new File(getTargetDir(relPath), fileName);
+ if(targetFile.exists()) {
+ targetFile = getNewFileName(targetFile);
+ } else {
+ targetFile.getParentFile().mkdirs();
+ }
+ saveToFile(targetFile, contents);
+ }
+ }
+ return savedFile;
+ }
+
+ private File getNewFileName(File file) {
+ File dir = file.getParentFile();
+ String targetName = file.getName();
+ logger.fine("targetName: " + targetName);
+ String ext = "";
+ int dotpos = targetName.indexOf(".");
+ if(dotpos > -1) {
+ ext = targetName.substring(dotpos);
+ targetName = targetName.substring(0, dotpos);
+ }
+ logger.fine("targetName: " + targetName + ", ext: " + ext);
+ int i = 1;
+ while(file.exists()) {
+ StringBuffer buf = new StringBuffer();
+ buf.append(targetName);
+ buf.append("-");
+ buf.append(i);
+ if(ext.length() > 0) {
+ buf.append(ext);
+ }
+ file = new File(dir, buf.toString());
+ i++;
+ }
+ logger.fine("new file: " + file.getName());
+ return file;
+ }
+
+ private FileRef saveToFile(File targetFile, String contents) {
+ FileRef savedFile = null;
+ try {
+ targetFile.createNewFile();
+ FileWriter w = new FileWriter(targetFile);
+ //w.write(StringEscapeUtils.unescapeHtml(contents));
+ w.write(contents);
+ w.flush();
+ w.close();
+ savedFile = new FileRef(
+ targetFile.getAbsolutePath(),
+ targetFile.isDirectory(),
+ targetFile.isHidden(),
+ targetFile.lastModified(),
+ targetFile.length());
+ } catch (IOException ex) {
+ logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
+ }
+ return savedFile;
}
public FileRef saveTextFile(String relPath, String fileName, String contents) {
FileRef savedFile = null;
+ logger.fine(relPath + " " + fileName);
+ if (!relPath.startsWith(".")) {
+ //FileRef datenRef = getBase();
+ Object p = getRequest().getUserPrincipal();
+ if(p instanceof Principal) {
+ File targetFile = new File(getTargetDir(relPath), fileName);
+ if(targetFile.exists()) {
+ /*
+ muss delete() sein?
+ pruefen: ueberschreibt der FileWriter den alteen Inhalt oder
+ entsteht eine unerwuenschte Mischung aus altem und neuem
+ Inhalt?
+ */
+ targetFile.delete();
+ } else {
+ targetFile.getParentFile().mkdirs();
+ }
+ saveToFile(targetFile, contents);
+ }
+ }
return savedFile;
}
- private File getWebappsDir() {
- File cfile = new File(this.getClass().getResource(this.getClass().getSimpleName() + ".class").getFile());
- String path = cfile.getAbsolutePath();
- return new File(path.substring(0, path.indexOf(req.getContextPath())));
- }
+ public String bildVerkleinern(String relPath, String bildName) {
+ if (!relPath.startsWith(".")) {
+ File dir = getTargetDir(relPath);
+ File original = new File(dir, bildName);
+ Bild bild = new Bild();
+ //for (int i = 0; i < Bild.GR.length; i++) {
- @Override
- public ServletContext getServletContext() {
- return ctx;
- }
+ //int gr = bild.getVariantenGroesse(i);
+ String ext = "";
+ String nurname = bildName;
+ int dotpos = bildName.indexOf(".");
+ if (dotpos > -1) {
+ ext = bildName.substring(dotpos);
+ nurname = bildName.substring(0, dotpos);
+ }
- @Override
- public void setServletContext(ServletContext servletContext) {
- this.ctx = servletContext;
- }
+ // 120, 240, 500, 700, 1200
- @Override
- public HttpServletRequest getRequest() {
- return req;
+
+ for (int i = 0; i < Bild.GR.length; i++) {
+ StringBuffer buf = new StringBuffer();
+ buf.append(nurname);
+ buf.append(bild.getVariantenName(i));
+ buf.append(ext);
+ File newImgFile = new File(dir, buf.toString());
+ try {
+ Thumbnails.of(original)
+ .size(bild.getVariantenGroesse(i), bild.getVariantenGroesse(i))
+ .keepAspectRatio(true)
+ .outputQuality(0.7)
+ .toFile(newImgFile);
+ } catch (IOException ex) {
+ logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
+ }
+ }
+ return "ok";
+ } else {
+ return "Pfad micht erlaubt.";
+ }
}
+
+ public String bildRotieren(String relPath, String bildName) {
+ if (!relPath.startsWith(".")) {
+ File dir = getTargetDir(relPath);
+ File original = new File(dir, bildName);
- @Override
- public void setRequest(HttpServletRequest r) {
- this.req = r;
+ String ext = "";
+ String nurname = bildName;
+ int dotpos = bildName.indexOf(".");
+ if (dotpos > -1) {
+ ext = bildName.substring(dotpos);
+ nurname = bildName.substring(0, dotpos);
+ }
+
+ StringBuffer buf = new StringBuffer();
+ buf.append(nurname);
+ buf.append("-rot");
+ buf.append(ext);
+ File newImgFile = new File(dir, buf.toString());
+
+ logger.fine("original: " + original.getAbsolutePath() + " newImgFile: " + newImgFile.getAbsolutePath());
+
+ try {
+ Thumbnails.of(original)
+ .scale(1)
+ .rotate(90)
+ .toFile(newImgFile);
+ } catch (IOException ex) {
+ logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
+ }
+
+
+ return "ok";
+ } else {
+ return "Pfad micht erlaubt.";
+ }
}
+
+ /* --------- ZIP entpacken ---------------- */
+
+ public String extractZipfile(String relPath, String filename) {
+ String result = null;
+ if (!relPath.startsWith(".")) {
+ try {
+ File targetDir = getTargetDir(relPath);
+ File archive = new File(targetDir, filename);
+ if(extract(archive)) {
+ result = "ok";
+ } else {
+ result = "error while extracting";
+ }
+ } catch(Exception ex) {
+ result = ex.getLocalizedMessage();
+ logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
+ }
+ }
+ return result;
+ }
+
+ /**
+ * extract a given ZIP archive to the folder respective archive resides in
+ * @param archive the archive to extract
+ * @throws Exception
+ */
+ private boolean extract(File archive) throws Exception {
+ ZipFile zipfile = new ZipFile(archive);
+ Enumeration en = zipfile.entries();
+ while(en.hasMoreElements()) {
+ ZipEntry zipentry = (ZipEntry) en.nextElement();
+ unzip(zipfile, zipentry, archive.getParent());
+ }
+ zipfile.close();
+ return true;
+ }
+
+ /**
+ * unzip a given entry of a given zip file to a given location
+ * @param zipfile the zip file to read an entry from
+ * @param zipentry the zip entry to read
+ * @param destPath the path to the destination location for the extracted content
+ * @throws IOException
+ */
+ private void unzip(ZipFile zipfile, ZipEntry zipentry, String destPath) throws IOException {
+ byte buf[] = new byte[1024];
+ InputStream is = zipfile.getInputStream(zipentry);
+ String outFileName = destPath + File.separator + zipentry.getName();
+ File file = new File(outFileName);
+ if(!zipentry.isDirectory()) {
+ file.getParentFile().mkdirs();
+ if(!file.exists())
+ file.createNewFile();
+ FileOutputStream fos = new FileOutputStream(file);
+ int i = is.read(buf, 0, 1024);
+ while(i > -1) {
+ fos.write(buf, 0, i);
+ i = is.read(buf, 0, 1024);
+ }
+ fos.close();
+ 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 ---- */
+
+}
\ No newline at end of file
--
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