file-cms.git - Ulrich Hilger Code Repository

MarkdownServlet der Datenvorlage hinzugefuegt

ulrich@undisclosed

2020-04-18 b5829f4c82500ceace80d980a141f15ae3421b8f

commit \| author \| age
8931b7	1	/*
U	2	Dateiverwaltung - File management in your browser
	3	Copyright (C) 2017 Ulrich Hilger, http://uhilger.de
	4
	5	This program is free software: you can redistribute it and/or modify
	6	it under the terms of the GNU Affero General Public License as
	7	published by the Free Software Foundation, either version 3 of the
	8	License, or (at your option) any later version.
	9
	10	This program is distributed in the hope that it will be useful,
	11	but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	GNU Affero General Public License for more details.
	14
	15	You should have received a copy of the GNU Affero General Public License
	16	along with this program. If not, see <http://www.gnu.org/licenses/>.
	17	*/
	18
c7c502	19	package de.uhilger.filecms.api;
U	20
6e70be	21	import de.uhilger.filecms.data.FileRef;
d14d78	22	import de.uhilger.filecms.pub.AbstractComparator;
U	23	import de.uhilger.filecms.pub.FileNameComparator;
332c05	24	import de.uhilger.filecms.pub.ImgFileFilter;
bb9f8c	25	import de.uhilger.wbx.Bild;
e639c2	26	import de.uhilger.wbx.WbxUtils;
26115e	27	import static de.uhilger.wbx.WbxUtils.EMPTY_STRING;
U	28	import static de.uhilger.wbx.WbxUtils.WBX_FILE_BASE;
4e2a82	29	import de.uhilger.wbx.data.Inhalt;
332c05	30	import de.uhilger.wbx.web.TNServlet;
8e51b7	31	import java.io.File;
332c05	32	import java.io.FileFilter;
af9930	33	import java.io.FileInputStream;
3ad4db	34	import java.io.FileNotFoundException;
6bd2c1	35	import java.io.FileOutputStream;
3ad4db	36	import java.io.FileReader;
e5ff42	37	import java.io.FileWriter;
U	38	import java.io.IOException;
6bd2c1	39	import java.io.InputStream;
fab80c	40	import java.io.Reader;
e5ff42	41	import java.security.Principal;
7342b1	42	import java.util.ArrayList;
d14d78	43	import java.util.Arrays;
26115e	44	import java.util.Collections;
U	45	import java.util.Comparator;
6bd2c1	46	import java.util.Enumeration;
5bfd34	47	import java.util.Iterator;
7342b1	48	import java.util.List;
e5ff42	49	import java.util.logging.Level;
8e51b7	50	import java.util.logging.Logger;
af9930	51	import java.util.zip.Adler32;
U	52	import java.util.zip.CheckedOutputStream;
6bd2c1	53	import java.util.zip.ZipEntry;
U	54	import java.util.zip.ZipFile;
af9930	55	import java.util.zip.ZipOutputStream;
4e2a82	56	import javax.servlet.http.HttpServletRequest;
bb9f8c	57	import net.coobird.thumbnailator.Thumbnails;
5bfd34	58	import org.apache.commons.io.FileUtils;
e18175	59	import org.apache.commons.io.filefilter.WildcardFileFilter;
c7c502	60
U	61	/**
fafe1b	62	* Methoden zur Verwaltung von Dateien
c7c502	63	*/
8931b7	64	public class FileMgr extends Api {
8e51b7	65	private static final Logger logger = Logger.getLogger(FileMgr.class.getName());
931544	66
9e2964	67	public static final int OP_COPY = 1;
U	68	public static final int OP_MOVE = 2;
931544	69
U	70	public static final String DOT = ".";
9e2964	71
ea7193	72	public String hallo() {
U	73	return "Hallo Welt!";
	74	}
	75
1f550a	76	/**
U	77	* Inhalte der WebBox listen. Hier wird nur der relative Pfad
	78	* ausgehend von www oder home ausgegeben sowie zudem ausgehend
	79	* von $daten und $basis, sofern der Benutzer die Rolle wbxAdmin hat.
	80	*
	81	* Andere Inhalte werden nicht ausgegeben.
	82	*
	83	* @param relPath
	84	* @return
	85	*/
7342b1	86	public List<FileRef> list(String relPath) {
d14d78	87	return listInt(relPath, "name", AbstractComparator.ORDER_ASC);
U	88	}
	89
	90	public List<FileRef> listOrdered(String relPath, String orderBy, String order) {
	91	return listInt(relPath, orderBy, order);
	92	}
	93
	94	/**
	95	* Inhalte der WebBox listen. Hier wird nur der relative Pfad
	96	* ausgehend von www oder home ausgegeben sowie zudem ausgehend
	97	* von $daten und $basis, sofern der Benutzer die Rolle wbxAdmin hat.
	98	*
	99	* Andere Inhalte werden nicht ausgegeben.
	100	*
	101	* @param relPath
	102	* @param orderBy 'name'
	103	* @param order AbstractComparator.ORDER_ASC oder AbstractComparator.ORDER_DESC
	104	* @return
	105	*/
	106	private List<FileRef> listInt(String relPath, String orderBy, String order) {
f7d8bf	107	Bild bild = new Bild();
5dfab6	108	List<FileRef> files = new ArrayList();
ac72fe	109	if (!relPath.startsWith(".") && !relPath.contains("WEB-INF") && !relPath.contains("META-INF")) {
3d0c6d	110	if (relPath.length() == 0) {
U	111	FileRef namedPublicFolder = new FileRef(PUB_DIR_NAME, true);
	112	logger.finer(namedPublicFolder.getAbsolutePath());
	113	FileRef namedHomeFolder = new FileRef(HOME_DIR_NAME, true);
	114	logger.finer(namedHomeFolder.getAbsolutePath());
	115	FileRef namedDavFolder = new FileRef(DAV_DIR_NAME, true);
	116	logger.finer(namedDavFolder.getAbsolutePath());
	117	files = new ArrayList();
	118	files.add(namedHomeFolder);
	119	files.add(namedPublicFolder);
	120	files.add(namedDavFolder);
	121	if (getRequest().isUserInRole(WBX_ADMIN_ROLE)) {
	122	FileRef namedBaseFolder = new FileRef(WBX_BASE, true);
	123	FileRef namedDataFolder = new FileRef(WBX_DATA, true);
	124	files.add(namedBaseFolder);
	125	files.add(namedDataFolder);
d14d78	126	}
3d0c6d	127	} else {
U	128	String path = getTargetDir(relPath).getAbsolutePath();
	129	logger.fine("listing path: " + path);
	130	File dir = new File(path);
	131	if (dir.exists()) {
332c05	132	File[] fileArray = dir.listFiles(new ImgFileFilter());
3d0c6d	133	if (orderBy != null && orderBy.equalsIgnoreCase("name")) {
U	134	Arrays.sort(fileArray, new FileNameComparator(order));
	135	} else {
	136	Arrays.sort(fileArray, new FileNameComparator(AbstractComparator.ORDER_ASC));
5bfd34	137	}
3d0c6d	138	for (int i = 0; i < fileArray.length; i++) {
U	139	logger.fine(fileArray[i].toURI().toString());
	140	String fname = fileArray[i].toURI().toString().replace("file:/", "");
	141	if (fileArray[i].isDirectory()) {
	142	fname = fname.substring(0, fname.length() - 1);
	143	}
	144	logger.fine(fname);
ac72fe	145	if(!fname.contains("WEB-INF") && !fname.contains("META-INF")) {
c5eaaa	146	long fLen = fileArray[i].length();
U	147	long lastMod = fileArray[i].lastModified();
	148	FileRef ref = new FileRef(fname, fileArray[i].isDirectory(), fileArray[i].isHidden(), lastMod, fLen);
ac72fe	149	ref.setMimetype(bild.getMimeType(fileArray[i]));
U	150	files.add(ref);
	151	}
3d0c6d	152	}
5bfd34	153	}
5dfab6	154	}
3d0c6d	155	}
7342b1	156	return files;
2121cc	157	}
4e2a82	158
26115e	159	public List<Inhalt> collect(String relativePath, int maxTiefe, int maxAnzahl, int len) {
U	160
4e2a82	161	WbxUtils wu = new WbxUtils();
U	162	HttpServletRequest req = getRequest();
	163	String requestUrl = req.getRequestURL().toString();
	164	String contextPath = req.getContextPath();
26115e	165	return wu.collectFiles(requestUrl, contextPath, relativePath, maxTiefe, maxAnzahl, len);
4e2a82	166	}
d14d78	167
c509a0	168	public FileRef newFolder(String relPath, String folderName) {
eb2a2d	169	if (!relPath.startsWith(".")) {
U	170	logger.finer(relPath);
	171	String targetPath = null;
	172	if(relPath.startsWith(PUB_DIR_NAME)) {
	173	targetPath = PUB_DIR_PATH + getUserName() + "/" + relPath.substring(PUB_DIR_NAME.length()) + "/" + folderName;
	174	} else if(relPath.startsWith(HOME_DIR_NAME)) {
	175	targetPath = HOME_DIR_PATH + getUserName() + "/" + relPath.substring(HOME_DIR_NAME.length()) + "/" + folderName;
	176	} else {
	177	// kann eigentlich nicht sein..
	178	}
	179	logger.finer(targetPath);
	180	File targetDir = new File(getBase().getAbsolutePath(), targetPath);
	181	targetDir.mkdirs();
	182	return new FileRef(targetDir.getAbsolutePath(), true);
c509a0	183	} else {
eb2a2d	184	return null;
c509a0	185	}
5dfab6	186	}
U	187
3ad4db	188	public String getCode(String relPath, String fileName) {
U	189	String code = null;
eb2a2d	190	if (!relPath.startsWith(".")) {
U	191	Object p = getRequest().getUserPrincipal();
	192	if (p instanceof Principal) {
	193	Reader reader = null;
3ad4db	194	try {
eb2a2d	195	File targetFile = new File(getTargetDir(relPath), fileName);
U	196
	197	//reader = new InputStreamReader(new FileInputStream(targetFile), "UTF8");
	198	reader = new FileReader(targetFile);
	199	StringBuffer buf = new StringBuffer();
	200	char[] readBuffer = new char[1024];
	201	int charsRead = reader.read(readBuffer);
	202	while (charsRead > -1) {
	203	buf.append(readBuffer, 0, charsRead);
	204	charsRead = reader.read(readBuffer);
	205	}
	206	code = buf.toString();
	207	} catch (FileNotFoundException ex) {
	208	Logger.getLogger(FileMgr.class.getName()).log(Level.SEVERE, null, ex);
3ad4db	209	} catch (IOException ex) {
U	210	Logger.getLogger(FileMgr.class.getName()).log(Level.SEVERE, null, ex);
eb2a2d	211	} finally {
U	212	try {
	213	reader.close();
	214	} catch (IOException ex) {
	215	Logger.getLogger(FileMgr.class.getName()).log(Level.SEVERE, null, ex);
	216	}
3ad4db	217	}
eb2a2d	218
3ad4db	219	}
eb2a2d	220	}
3ad4db	221	return code;
U	222	}
	223
663ee9	224	public String renameFile(String relPath, String fname, String newName) {
eb2a2d	225	if (!relPath.startsWith(".")) {
U	226	File targetDir = getTargetDir(relPath);
	227	File file = new File(targetDir, fname);
931544	228	if(fname.endsWith(TNServlet.JPEG) \|\| fname.endsWith(TNServlet.JPG) \|\| fname.endsWith(TNServlet.PNG)) {
U	229	renameImgFiles(targetDir, file, newName);
	230	} else {
	231	file.renameTo(new File(targetDir, newName));
	232	}
eb2a2d	233	return fname + " umbenannt zu " + newName;
U	234	} else {
	235	return "Pfad nicht erlaubt.";
	236	}
663ee9	237	}
U	238
931544	239	public void renameImgFiles(File targetDir, File targetFile, String newName) {
U	240	String alt;
	241	String neu;
	242
	243	int newdotpos = newName.lastIndexOf(DOT);
	244	String newfname = newName.substring(0, newdotpos);
	245	String newext = newName.substring(newdotpos);
	246	logger.fine("newfname: " + newfname + ", newext: " + newext);
	247
	248	String fnameext = targetFile.getName();
	249	int dotpos = fnameext.lastIndexOf(DOT);
	250	String fname = fnameext.substring(0, dotpos);
	251	String ext = fnameext.substring(dotpos);
	252	logger.fine("fname: " + fname + ", ext: " + ext);
	253
	254	FileFilter fileFilter = new WildcardFileFilter(fname + "*" + ext);
	255	File[] files = targetDir.listFiles(fileFilter);
	256	for (int i = 0; i < files.length; i++) {
	257	alt = files[i].getName();
	258	logger.fine("alt: " + alt);
	259	if(alt.contains(TNServlet.TN)) {
	260	neu = newfname + TNServlet.TN + newext;
	261	} else if (alt.contains(TNServlet.KL)) {
	262	neu = newfname + TNServlet.KL + newext;
	263	} else if(alt.contains(TNServlet.GR)) {
	264	neu = newfname + TNServlet.GR + newext;
	265	} else if(alt.contains(TNServlet.MT)) {
	266	neu = newfname + TNServlet.MT + newext;
	267	} else if(alt.contains(TNServlet.SM)) {
	268	neu = newfname + TNServlet.SM + newext;
	269	} else {
	270	neu = newName;
	271	}
	272	files[i].renameTo(new File(targetDir, neu));
	273	logger.fine("neu: " + neu);
	274	}
	275	}
	276
fc1897	277	public String deleteFiles(String relPath, List fileNames) {
U	278	String result = null;
	279	try {
	280	logger.fine(fileNames.toString());
931544	281	if (!relPath.startsWith(DOT)) {
eb2a2d	282	File targetDir = getTargetDir(relPath);
U	283	for(int i=0; i < fileNames.size(); i++) {
	284	Object o = fileNames.get(i);
	285	if(o instanceof ArrayList) {
	286	ArrayList al = (ArrayList) o;
	287	logger.fine(al.get(0).toString());
	288	File targetFile = new File(targetDir, al.get(0).toString());
	289	logger.fine(targetFile.getAbsolutePath());
	290	if(targetFile.isDirectory()) {
	291	FileUtils.deleteDirectory(targetFile);
	292	} else {
e18175	293	/*
U	294	Wenn targetFile mit jpg, jpeg oder png endet,
	295	muss eine Unterfunktion eine Liste aller Dateien bilden,
	296	die so heissen, also z.B. alle [Dateiname]*.jpg
	297	*/
	298	String fname = targetFile.getName().toLowerCase();
	299	if(fname.endsWith(TNServlet.JPEG) \|\| fname.endsWith(TNServlet.JPG) \|\| fname.endsWith(TNServlet.PNG)) {
	300	deleteImgFiles(targetDir, targetFile);
	301	} else {
	302	targetFile.delete();
	303	}
eb2a2d	304	}
5bfd34	305	}
fc1897	306	}
eb2a2d	307	result = "deleted";
fc1897	308	}
U	309	} catch (Throwable ex) {
	310	logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
	311	}
	312	return result;
	313	}
	314
e18175	315	public void deleteImgFiles(File targetDir, File targetFile) {
U	316	String fnameext = targetFile.getName();
931544	317	int dotpos = fnameext.lastIndexOf(DOT);
e18175	318	String fname = fnameext.substring(0, dotpos);
U	319	String ext = fnameext.substring(dotpos);
	320	logger.fine("fname: " + fname + ", ext: " + ext);
	321	FileFilter fileFilter = new WildcardFileFilter(fname + "*" + ext);
	322	File[] files = targetDir.listFiles(fileFilter);
	323	for (int i = 0; i < files.length; i++) {
	324	logger.fine(files[i].getName());
	325	files[i].delete();
	326	}
	327	}
	328
9e2964	329	public String copyFiles(String fromPath, String toPath, List fileNames) {
fab629	330	return copyOrMoveFiles(fromPath, toPath, fileNames, OP_COPY);
9e2964	331	}
U	332
	333	public String moveFiles(String fromPath, String toPath, List fileNames) {
fab629	334	return copyOrMoveFiles(fromPath, toPath, fileNames, OP_MOVE);
U	335	}
	336
	337	private String copyOrMoveFiles(String fromPath, String toPath, List fileNames, int operation) {
5bfd34	338	String result = null;
U	339	try {
eb2a2d	340	if (!fromPath.startsWith(".")) {
U	341	File srcDir = getTargetDir(fromPath);
	342	File targetDir = getTargetDir(toPath);
	343	Iterator i = fileNames.iterator();
	344	while(i.hasNext()) {
	345	Object o = i.next();
	346	if (o instanceof ArrayList) {
	347	ArrayList al = (ArrayList) o;
	348	File srcFile = new File(srcDir, al.get(0).toString());
	349	if(srcFile.isDirectory()) {
	350	if(operation == OP_MOVE) {
	351	FileUtils.moveDirectoryToDirectory(srcFile, targetDir, false);
	352	} else {
	353	FileUtils.copyDirectoryToDirectory(srcFile, targetDir);
	354	}
fab629	355	} else {
eb2a2d	356	if(operation == OP_MOVE) {
7b4480	357	String fname = srcFile.getName().toLowerCase();
U	358	if(fname.endsWith(TNServlet.JPEG) \|\| fname.endsWith(TNServlet.JPG) \|\| fname.endsWith(TNServlet.PNG)) {
	359	moveImgFilesToDirectory(srcFile, srcDir, targetDir, false);
	360	} else {
	361	FileUtils.moveFileToDirectory(srcFile, targetDir, false);
	362	}
eb2a2d	363	} else {
U	364	FileUtils.copyFileToDirectory(srcFile, targetDir);
	365	}
fab629	366	}
5bfd34	367	}
U	368	}
	369	}
	370	} catch (IOException ex) {
	371	logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
	372	}
	373	return result;
9e2964	374	}
U	375
7b4480	376	private void moveImgFilesToDirectory(File srcFile, File srcDir, File targetDir, boolean createDestDir) throws IOException {
U	377	String fnameext = srcFile.getName();
	378	int dotpos = fnameext.lastIndexOf(DOT);
	379	String fname = fnameext.substring(0, dotpos);
	380	String ext = fnameext.substring(dotpos);
	381	logger.fine("fname: " + fname + ", ext: " + ext);
	382	FileFilter fileFilter = new WildcardFileFilter(fname + "*" + ext);
	383	File[] files = srcDir.listFiles(fileFilter);
	384	for (int i = 0; i < files.length; i++) {
	385	logger.fine(files[i].getName());
	386	FileUtils.moveFileToDirectory(files[i], targetDir, createDestDir);
	387	}
	388	}
	389
47e9d4	390	public FileRef saveTextFileAs(String relPath, String fileName, String contents) {
U	391	FileRef savedFile = null;
	392	logger.fine(relPath + " " + fileName);
eb2a2d	393	if (!relPath.startsWith(".")) {
U	394	//FileRef datenRef = getBase();
	395	Object p = getRequest().getUserPrincipal();
	396	if(p instanceof Principal) {
	397	File targetFile = new File(getTargetDir(relPath), fileName);
	398	if(targetFile.exists()) {
	399	targetFile = getNewFileName(targetFile);
	400	} else {
	401	targetFile.getParentFile().mkdirs();
	402	}
	403	saveToFile(targetFile, contents);
47e9d4	404	}
U	405	}
	406	return savedFile;
	407	}
	408
	409	private File getNewFileName(File file) {
	410	File dir = file.getParentFile();
	411	String targetName = file.getName();
	412	logger.fine("targetName: " + targetName);
	413	String ext = "";
	414	int dotpos = targetName.indexOf(".");
	415	if(dotpos > -1) {
	416	ext = targetName.substring(dotpos);
	417	targetName = targetName.substring(0, dotpos);
	418	}
	419	logger.fine("targetName: " + targetName + ", ext: " + ext);
	420	int i = 1;
	421	while(file.exists()) {
	422	StringBuffer buf = new StringBuffer();
	423	buf.append(targetName);
	424	buf.append("-");
	425	buf.append(i);
	426	if(ext.length() > 0) {
	427	buf.append(ext);
	428	}
	429	file = new File(dir, buf.toString());
	430	i++;
	431	}
	432	logger.fine("new file: " + file.getName());
	433	return file;
942d63	434	}
47e9d4	435
U	436	private FileRef saveToFile(File targetFile, String contents) {
ea7193	437	FileRef savedFile = null;
e5ff42	438	try {
47e9d4	439	targetFile.createNewFile();
U	440	FileWriter w = new FileWriter(targetFile);
942d63	441	//w.write(StringEscapeUtils.unescapeHtml(contents));
47e9d4	442	w.write(contents);
U	443	w.flush();
	444	w.close();
	445	savedFile = new FileRef(
	446	targetFile.getAbsolutePath(),
	447	targetFile.isDirectory(),
	448	targetFile.isHidden(),
	449	targetFile.lastModified(),
	450	targetFile.length());
e5ff42	451	} catch (IOException ex) {
47e9d4	452	logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
U	453	}
	454	return savedFile;
	455	}
	456
	457	public FileRef saveTextFile(String relPath, String fileName, String contents) {
	458	FileRef savedFile = null;
	459	logger.fine(relPath + " " + fileName);
eb2a2d	460	if (!relPath.startsWith(".")) {
U	461	//FileRef datenRef = getBase();
	462	Object p = getRequest().getUserPrincipal();
	463	if(p instanceof Principal) {
	464	File targetFile = new File(getTargetDir(relPath), fileName);
	465	if(targetFile.exists()) {
	466	/*
	467	muss delete() sein?
	468	pruefen: ueberschreibt der FileWriter den alteen Inhalt oder
	469	entsteht eine unerwuenschte Mischung aus altem und neuem
	470	Inhalt?
	471	*/
	472	targetFile.delete();
	473	} else {
	474	targetFile.getParentFile().mkdirs();
	475	}
	476	saveToFile(targetFile, contents);
47e9d4	477	}
e5ff42	478	}
ea7193	479	return savedFile;
U	480	}
438b16	481
U	482	public String bildVerkleinern(String relPath, String bildName) {
eb2a2d	483	if (!relPath.startsWith(".")) {
U	484	File dir = getTargetDir(relPath);
	485	File original = new File(dir, bildName);
	486	Bild bild = new Bild();
	487	//for (int i = 0; i < Bild.GR.length; i++) {
	488
438b16	489	//int gr = bild.getVariantenGroesse(i);
U	490	String ext = "";
	491	String nurname = bildName;
	492	int dotpos = bildName.indexOf(".");
	493	if (dotpos > -1) {
	494	ext = bildName.substring(dotpos);
	495	nurname = bildName.substring(0, dotpos);
	496	}
eb2a2d	497
bb9f8c	498	// 120, 240, 500, 700, 1200
U	499
	500
	501	for (int i = 0; i < Bild.GR.length; i++) {
	502	StringBuffer buf = new StringBuffer();
	503	buf.append(nurname);
	504	buf.append(bild.getVariantenName(i));
	505	buf.append(ext);
	506	File newImgFile = new File(dir, buf.toString());
	507	try {
	508	Thumbnails.of(original)
	509	.size(bild.getVariantenGroesse(i), bild.getVariantenGroesse(i))
	510	.keepAspectRatio(true)
8a8152	511	.outputQuality(0.7)
bb9f8c	512	.toFile(newImgFile);
U	513	} catch (IOException ex) {
	514	logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
	515	}
	516	}
eb2a2d	517	return "ok";
U	518	} else {
	519	return "Pfad micht erlaubt.";
	520	}
438b16	521	}
6bd2c1	522
bb9f8c	523	public String bildRotieren(String relPath, String bildName) {
U	524	if (!relPath.startsWith(".")) {
	525	File dir = getTargetDir(relPath);
	526	File original = new File(dir, bildName);
	527
	528	String ext = "";
	529	String nurname = bildName;
	530	int dotpos = bildName.indexOf(".");
	531	if (dotpos > -1) {
	532	ext = bildName.substring(dotpos);
	533	nurname = bildName.substring(0, dotpos);
	534	}
	535
	536	StringBuffer buf = new StringBuffer();
	537	buf.append(nurname);
	538	buf.append("-rot");
	539	buf.append(ext);
	540	File newImgFile = new File(dir, buf.toString());
	541
	542	logger.fine("original: " + original.getAbsolutePath() + " newImgFile: " + newImgFile.getAbsolutePath());
	543
	544	try {
	545	Thumbnails.of(original)
	546	.scale(1)
	547	.rotate(90)
	548	.toFile(newImgFile);
	549	} catch (IOException ex) {
	550	logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
	551	}
	552
	553
	554	return "ok";
	555	} else {
	556	return "Pfad micht erlaubt.";
	557	}
	558	}
af9930	559
U	560	/* --------- ZIP entpacken ---------------- */
	561
6bd2c1	562	public String extractZipfile(String relPath, String filename) {
eb2a2d	563	String result = null;
U	564	if (!relPath.startsWith(".")) {
	565	try {
	566	File targetDir = getTargetDir(relPath);
	567	File archive = new File(targetDir, filename);
	568	if(extract(archive)) {
	569	result = "ok";
	570	} else {
	571	result = "error while extracting";
	572	}
	573	} catch(Exception ex) {
	574	result = ex.getLocalizedMessage();
	575	logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
6bd2c1	576	}
U	577	}
	578	return result;
	579	}
	580
	581	/**
	582	* extract a given ZIP archive to the folder respective archive resides in
	583	* @param archive the archive to extract
	584	* @throws Exception
	585	*/
	586	private boolean extract(File archive) throws Exception {
	587	ZipFile zipfile = new ZipFile(archive);
	588	Enumeration en = zipfile.entries();
	589	while(en.hasMoreElements()) {
	590	ZipEntry zipentry = (ZipEntry) en.nextElement();
	591	unzip(zipfile, zipentry, archive.getParent());
	592	}
	593	zipfile.close();
	594	return true;
	595	}
	596
	597	/**
	598	* unzip a given entry of a given zip file to a given location
	599	* @param zipfile the zip file to read an entry from
	600	* @param zipentry the zip entry to read
	601	* @param destPath the path to the destination location for the extracted content
	602	* @throws IOException
	603	*/
	604	private void unzip(ZipFile zipfile, ZipEntry zipentry, String destPath) throws IOException {
	605	byte buf[] = new byte[1024];
	606	InputStream is = zipfile.getInputStream(zipentry);
	607	String outFileName = destPath + File.separator + zipentry.getName();
	608	File file = new File(outFileName);
	609	if(!zipentry.isDirectory()) {
	610	file.getParentFile().mkdirs();
	611	if(!file.exists())
	612	file.createNewFile();
	613	FileOutputStream fos = new FileOutputStream(file);
	614	int i = is.read(buf, 0, 1024);
	615	while(i > -1) {
	616	fos.write(buf, 0, i);
	617	i = is.read(buf, 0, 1024);
	618	}
	619	fos.close();
	620	is.close();
	621	} else {
	622	file.mkdirs();
	623	}
	624	}
	625
af9930	626	/* ------------- Ornder als ZIP packen --------------- */
U	627
	628	public String packFolder(String relPath) {
	629	if (!relPath.startsWith(".")) {
	630	try {
	631	File targetDir = getTargetDir(relPath);
	632	File parentDir = targetDir.getParentFile();
	633	StringBuffer fname = new StringBuffer();
	634	fname.append(targetDir.getName());
	635	fname.append(".zip");
	636	File archiveFile = new File(parentDir, fname.toString());
	637	FileRef folderToPack = new FileRef(targetDir.getAbsolutePath());
	638	FileRef archive = new FileRef(archiveFile.getAbsolutePath());
	639	pack(folderToPack, archive);
	640	return "ok";
	641	} catch(Exception ex) {
	642	String result = ex.getLocalizedMessage();
	643	logger.log(Level.SEVERE, result, ex);
	644	return result;
	645	}
	646	} else {
	647	return "Falsche relative Pfadangabe";
	648	}
	649	}
	650
	651	/**
	652	* pack the contents of a given folder into a new ZIP compressed archive
	653	* @param folder the folder to pack
	654	* @param archive the archive to create from the given files
	655	* @throws Exception
	656	*/
	657	private boolean pack(FileRef folder, FileRef archive) throws Exception {
	658	File file = new File(archive.getAbsolutePath());
	659	FileOutputStream fos = new FileOutputStream(file);
	660	CheckedOutputStream checksum = new CheckedOutputStream(fos, new Adler32());
	661	ZipOutputStream zos = new ZipOutputStream(checksum);
	662	pack(zos, folder.getAbsolutePath(), "");
	663	zos.flush();
	664	zos.finish();
	665	zos.close();
	666	fos.flush();
	667	fos.close();
	668	return true;
	669	}
	670
	671	/**
	672	* go through the given file structure recursively
	673	* @param zipFile the ZIP file to write to
	674	* @param srcDir the directory to pack during this cycle
	675	* @param subDir the subdirectory to append to names of file entries inside the archive
	676	* @throws IOException
	677	*/
	678	private void pack(ZipOutputStream zipFile, String srcDir, String subDir) throws IOException {
	679	File[] files = new File(srcDir).listFiles();
	680	for(int i = 0; i < files.length; i++) {
	681	if(files[i].isDirectory()) {
	682	pack(zipFile, files[i].getAbsolutePath(), subDir + File.separator + files[i].getName());
	683	}
	684	else {
	685	packFile(zipFile, subDir, files[i]);
	686	}
	687	}
	688	}
	689
	690	/**
	691	* pack a given file
	692	* @param zipFile the ZIP archive to pack to
	693	* @param dir the directory name to append to name of file entry inside archive
	694	* @param file the file to pack
	695	* @throws IOException
	696	*/
	697	private void packFile(ZipOutputStream zipFile, String dir, File file) throws IOException
	698	{
	699	FileInputStream fileinputstream = new FileInputStream(file);
	700	byte buf[] = new byte[fileinputstream.available()];
	701	fileinputstream.read(buf);
	702	String dirWithSlashes = dir.replace('\\', '/');
	703	//System.out.println("zipping " + dirWithSlashes + "/" + file.getName());
	704	ZipEntry ze = new ZipEntry(dirWithSlashes + "/" + file.getName());
	705	ze.setMethod(ZipEntry.DEFLATED);
	706	zipFile.putNextEntry(ze);
	707	zipFile.write(buf, 0, buf.length);
	708	zipFile.closeEntry();
	709	fileinputstream.close();
	710	}
	711
6bd2c1	712
438b16	713
5efd94	714	/* ---- Hilfsfunktionen ---- */
ea7193	715
547755	716	}