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Uebertragung Breadcrumb angefangen, noch in Arbeit

ulrich

2021-01-12 8ba358fc936b9d3721aa1fea64a4c00eaaa347a4

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;
c95ff5	40	import java.io.InputStreamReader;
fab80c	41	import java.io.Reader;
c95ff5	42	import java.nio.charset.Charset;
e5ff42	43	import java.security.Principal;
7342b1	44	import java.util.ArrayList;
d14d78	45	import java.util.Arrays;
26115e	46	import java.util.Collections;
U	47	import java.util.Comparator;
6bd2c1	48	import java.util.Enumeration;
5bfd34	49	import java.util.Iterator;
7342b1	50	import java.util.List;
e5ff42	51	import java.util.logging.Level;
8e51b7	52	import java.util.logging.Logger;
af9930	53	import java.util.zip.Adler32;
U	54	import java.util.zip.CheckedOutputStream;
6bd2c1	55	import java.util.zip.ZipEntry;
U	56	import java.util.zip.ZipFile;
af9930	57	import java.util.zip.ZipOutputStream;
4e2a82	58	import javax.servlet.http.HttpServletRequest;
bb9f8c	59	import net.coobird.thumbnailator.Thumbnails;
5bfd34	60	import org.apache.commons.io.FileUtils;
e18175	61	import org.apache.commons.io.filefilter.WildcardFileFilter;
c7c502	62
U	63	/**
fafe1b	64	* Methoden zur Verwaltung von Dateien
c7c502	65	*/
8931b7	66	public class FileMgr extends Api {
8e51b7	67	private static final Logger logger = Logger.getLogger(FileMgr.class.getName());
931544	68
9e2964	69	public static final int OP_COPY = 1;
U	70	public static final int OP_MOVE = 2;
931544	71
U	72	public static final String DOT = ".";
9e2964	73
ea7193	74	public String hallo() {
U	75	return "Hallo Welt!";
	76	}
	77
1f550a	78	/**
U	79	* Inhalte der WebBox listen. Hier wird nur der relative Pfad
	80	* ausgehend von www oder home ausgegeben sowie zudem ausgehend
	81	* von $daten und $basis, sofern der Benutzer die Rolle wbxAdmin hat.
	82	*
	83	* Andere Inhalte werden nicht ausgegeben.
	84	*
	85	* @param relPath
	86	* @return
	87	*/
7342b1	88	public List<FileRef> list(String relPath) {
d14d78	89	return listInt(relPath, "name", AbstractComparator.ORDER_ASC);
U	90	}
	91
	92	public List<FileRef> listOrdered(String relPath, String orderBy, String order) {
	93	return listInt(relPath, orderBy, order);
	94	}
	95
	96	/**
	97	* Inhalte der WebBox listen. Hier wird nur der relative Pfad
	98	* ausgehend von www oder home ausgegeben sowie zudem ausgehend
	99	* von $daten und $basis, sofern der Benutzer die Rolle wbxAdmin hat.
	100	*
	101	* Andere Inhalte werden nicht ausgegeben.
	102	*
	103	* @param relPath
	104	* @param orderBy 'name'
	105	* @param order AbstractComparator.ORDER_ASC oder AbstractComparator.ORDER_DESC
	106	* @return
	107	*/
	108	private List<FileRef> listInt(String relPath, String orderBy, String order) {
f7d8bf	109	Bild bild = new Bild();
5dfab6	110	List<FileRef> files = new ArrayList();
ac72fe	111	if (!relPath.startsWith(".") && !relPath.contains("WEB-INF") && !relPath.contains("META-INF")) {
3d0c6d	112	if (relPath.length() == 0) {
U	113	FileRef namedPublicFolder = new FileRef(PUB_DIR_NAME, true);
	114	logger.finer(namedPublicFolder.getAbsolutePath());
	115	FileRef namedHomeFolder = new FileRef(HOME_DIR_NAME, true);
	116	logger.finer(namedHomeFolder.getAbsolutePath());
	117	FileRef namedDavFolder = new FileRef(DAV_DIR_NAME, true);
	118	logger.finer(namedDavFolder.getAbsolutePath());
	119	files = new ArrayList();
	120	files.add(namedHomeFolder);
	121	files.add(namedPublicFolder);
	122	files.add(namedDavFolder);
	123	if (getRequest().isUserInRole(WBX_ADMIN_ROLE)) {
	124	FileRef namedBaseFolder = new FileRef(WBX_BASE, true);
	125	FileRef namedDataFolder = new FileRef(WBX_DATA, true);
	126	files.add(namedBaseFolder);
	127	files.add(namedDataFolder);
d14d78	128	}
3d0c6d	129	} else {
U	130	String path = getTargetDir(relPath).getAbsolutePath();
	131	logger.fine("listing path: " + path);
	132	File dir = new File(path);
	133	if (dir.exists()) {
332c05	134	File[] fileArray = dir.listFiles(new ImgFileFilter());
3d0c6d	135	if (orderBy != null && orderBy.equalsIgnoreCase("name")) {
U	136	Arrays.sort(fileArray, new FileNameComparator(order));
	137	} else {
	138	Arrays.sort(fileArray, new FileNameComparator(AbstractComparator.ORDER_ASC));
5bfd34	139	}
3d0c6d	140	for (int i = 0; i < fileArray.length; i++) {
U	141	logger.fine(fileArray[i].toURI().toString());
	142	String fname = fileArray[i].toURI().toString().replace("file:/", "");
	143	if (fileArray[i].isDirectory()) {
	144	fname = fname.substring(0, fname.length() - 1);
	145	}
	146	logger.fine(fname);
ac72fe	147	if(!fname.contains("WEB-INF") && !fname.contains("META-INF")) {
c5eaaa	148	long fLen = fileArray[i].length();
U	149	long lastMod = fileArray[i].lastModified();
	150	FileRef ref = new FileRef(fname, fileArray[i].isDirectory(), fileArray[i].isHidden(), lastMod, fLen);
ac72fe	151	ref.setMimetype(bild.getMimeType(fileArray[i]));
U	152	files.add(ref);
	153	}
3d0c6d	154	}
5bfd34	155	}
5dfab6	156	}
3d0c6d	157	}
7342b1	158	return files;
2121cc	159	}
4e2a82	160
26115e	161	public List<Inhalt> collect(String relativePath, int maxTiefe, int maxAnzahl, int len) {
U	162
4e2a82	163	WbxUtils wu = new WbxUtils();
U	164	HttpServletRequest req = getRequest();
	165	String requestUrl = req.getRequestURL().toString();
	166	String contextPath = req.getContextPath();
26115e	167	return wu.collectFiles(requestUrl, contextPath, relativePath, maxTiefe, maxAnzahl, len);
4e2a82	168	}
d14d78	169
c509a0	170	public FileRef newFolder(String relPath, String folderName) {
eb2a2d	171	if (!relPath.startsWith(".")) {
U	172	logger.finer(relPath);
	173	String targetPath = null;
	174	if(relPath.startsWith(PUB_DIR_NAME)) {
	175	targetPath = PUB_DIR_PATH + getUserName() + "/" + relPath.substring(PUB_DIR_NAME.length()) + "/" + folderName;
	176	} else if(relPath.startsWith(HOME_DIR_NAME)) {
	177	targetPath = HOME_DIR_PATH + getUserName() + "/" + relPath.substring(HOME_DIR_NAME.length()) + "/" + folderName;
	178	} else {
	179	// kann eigentlich nicht sein..
	180	}
	181	logger.finer(targetPath);
	182	File targetDir = new File(getBase().getAbsolutePath(), targetPath);
	183	targetDir.mkdirs();
	184	return new FileRef(targetDir.getAbsolutePath(), true);
c509a0	185	} else {
eb2a2d	186	return null;
c509a0	187	}
5dfab6	188	}
U	189
3ad4db	190	public String getCode(String relPath, String fileName) {
U	191	String code = null;
eb2a2d	192	if (!relPath.startsWith(".")) {
U	193	Object p = getRequest().getUserPrincipal();
	194	if (p instanceof Principal) {
	195	Reader reader = null;
3ad4db	196	try {
eb2a2d	197	File targetFile = new File(getTargetDir(relPath), fileName);
U	198
c95ff5	199	reader = new InputStreamReader(new FileInputStream(targetFile), "UTF8");
U	200	//reader = new FileReader(targetFile);
eb2a2d	201	StringBuffer buf = new StringBuffer();
U	202	char[] readBuffer = new char[1024];
	203	int charsRead = reader.read(readBuffer);
	204	while (charsRead > -1) {
	205	buf.append(readBuffer, 0, charsRead);
	206	charsRead = reader.read(readBuffer);
	207	}
	208	code = buf.toString();
	209	} catch (FileNotFoundException ex) {
	210	Logger.getLogger(FileMgr.class.getName()).log(Level.SEVERE, null, ex);
3ad4db	211	} catch (IOException ex) {
U	212	Logger.getLogger(FileMgr.class.getName()).log(Level.SEVERE, null, ex);
eb2a2d	213	} finally {
U	214	try {
	215	reader.close();
	216	} catch (IOException ex) {
	217	Logger.getLogger(FileMgr.class.getName()).log(Level.SEVERE, null, ex);
	218	}
3ad4db	219	}
eb2a2d	220
3ad4db	221	}
eb2a2d	222	}
3ad4db	223	return code;
U	224	}
	225
663ee9	226	public String renameFile(String relPath, String fname, String newName) {
eb2a2d	227	if (!relPath.startsWith(".")) {
U	228	File targetDir = getTargetDir(relPath);
	229	File file = new File(targetDir, fname);
931544	230	if(fname.endsWith(TNServlet.JPEG) \|\| fname.endsWith(TNServlet.JPG) \|\| fname.endsWith(TNServlet.PNG)) {
U	231	renameImgFiles(targetDir, file, newName);
	232	} else {
	233	file.renameTo(new File(targetDir, newName));
	234	}
eb2a2d	235	return fname + " umbenannt zu " + newName;
U	236	} else {
	237	return "Pfad nicht erlaubt.";
	238	}
663ee9	239	}
U	240
931544	241	public void renameImgFiles(File targetDir, File targetFile, String newName) {
U	242	String alt;
	243	String neu;
	244
	245	int newdotpos = newName.lastIndexOf(DOT);
	246	String newfname = newName.substring(0, newdotpos);
	247	String newext = newName.substring(newdotpos);
	248	logger.fine("newfname: " + newfname + ", newext: " + newext);
	249
	250	String fnameext = targetFile.getName();
	251	int dotpos = fnameext.lastIndexOf(DOT);
	252	String fname = fnameext.substring(0, dotpos);
	253	String ext = fnameext.substring(dotpos);
	254	logger.fine("fname: " + fname + ", ext: " + ext);
	255
	256	FileFilter fileFilter = new WildcardFileFilter(fname + "*" + ext);
	257	File[] files = targetDir.listFiles(fileFilter);
	258	for (int i = 0; i < files.length; i++) {
	259	alt = files[i].getName();
	260	logger.fine("alt: " + alt);
	261	if(alt.contains(TNServlet.TN)) {
	262	neu = newfname + TNServlet.TN + newext;
	263	} else if (alt.contains(TNServlet.KL)) {
	264	neu = newfname + TNServlet.KL + newext;
	265	} else if(alt.contains(TNServlet.GR)) {
	266	neu = newfname + TNServlet.GR + newext;
	267	} else if(alt.contains(TNServlet.MT)) {
	268	neu = newfname + TNServlet.MT + newext;
	269	} else if(alt.contains(TNServlet.SM)) {
	270	neu = newfname + TNServlet.SM + newext;
	271	} else {
	272	neu = newName;
	273	}
	274	files[i].renameTo(new File(targetDir, neu));
	275	logger.fine("neu: " + neu);
	276	}
	277	}
	278
fc1897	279	public String deleteFiles(String relPath, List fileNames) {
U	280	String result = null;
	281	try {
	282	logger.fine(fileNames.toString());
931544	283	if (!relPath.startsWith(DOT)) {
eb2a2d	284	File targetDir = getTargetDir(relPath);
U	285	for(int i=0; i < fileNames.size(); i++) {
	286	Object o = fileNames.get(i);
	287	if(o instanceof ArrayList) {
	288	ArrayList al = (ArrayList) o;
	289	logger.fine(al.get(0).toString());
	290	File targetFile = new File(targetDir, al.get(0).toString());
	291	logger.fine(targetFile.getAbsolutePath());
	292	if(targetFile.isDirectory()) {
	293	FileUtils.deleteDirectory(targetFile);
	294	} else {
e18175	295	/*
U	296	Wenn targetFile mit jpg, jpeg oder png endet,
	297	muss eine Unterfunktion eine Liste aller Dateien bilden,
	298	die so heissen, also z.B. alle [Dateiname]*.jpg
	299	*/
	300	String fname = targetFile.getName().toLowerCase();
	301	if(fname.endsWith(TNServlet.JPEG) \|\| fname.endsWith(TNServlet.JPG) \|\| fname.endsWith(TNServlet.PNG)) {
	302	deleteImgFiles(targetDir, targetFile);
	303	} else {
	304	targetFile.delete();
	305	}
eb2a2d	306	}
5bfd34	307	}
fc1897	308	}
eb2a2d	309	result = "deleted";
fc1897	310	}
U	311	} catch (Throwable ex) {
	312	logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
	313	}
	314	return result;
	315	}
	316
e18175	317	public void deleteImgFiles(File targetDir, File targetFile) {
U	318	String fnameext = targetFile.getName();
931544	319	int dotpos = fnameext.lastIndexOf(DOT);
e18175	320	String fname = fnameext.substring(0, dotpos);
U	321	String ext = fnameext.substring(dotpos);
	322	logger.fine("fname: " + fname + ", ext: " + ext);
	323	FileFilter fileFilter = new WildcardFileFilter(fname + "*" + ext);
	324	File[] files = targetDir.listFiles(fileFilter);
	325	for (int i = 0; i < files.length; i++) {
	326	logger.fine(files[i].getName());
	327	files[i].delete();
	328	}
	329	}
	330
9e2964	331	public String copyFiles(String fromPath, String toPath, List fileNames) {
fab629	332	return copyOrMoveFiles(fromPath, toPath, fileNames, OP_COPY);
9e2964	333	}
U	334
	335	public String moveFiles(String fromPath, String toPath, List fileNames) {
fab629	336	return copyOrMoveFiles(fromPath, toPath, fileNames, OP_MOVE);
U	337	}
	338
	339	private String copyOrMoveFiles(String fromPath, String toPath, List fileNames, int operation) {
5bfd34	340	String result = null;
U	341	try {
eb2a2d	342	if (!fromPath.startsWith(".")) {
U	343	File srcDir = getTargetDir(fromPath);
	344	File targetDir = getTargetDir(toPath);
	345	Iterator i = fileNames.iterator();
	346	while(i.hasNext()) {
	347	Object o = i.next();
	348	if (o instanceof ArrayList) {
	349	ArrayList al = (ArrayList) o;
	350	File srcFile = new File(srcDir, al.get(0).toString());
	351	if(srcFile.isDirectory()) {
	352	if(operation == OP_MOVE) {
	353	FileUtils.moveDirectoryToDirectory(srcFile, targetDir, false);
	354	} else {
	355	FileUtils.copyDirectoryToDirectory(srcFile, targetDir);
	356	}
fab629	357	} else {
eb2a2d	358	if(operation == OP_MOVE) {
7b4480	359	String fname = srcFile.getName().toLowerCase();
U	360	if(fname.endsWith(TNServlet.JPEG) \|\| fname.endsWith(TNServlet.JPG) \|\| fname.endsWith(TNServlet.PNG)) {
	361	moveImgFilesToDirectory(srcFile, srcDir, targetDir, false);
	362	} else {
	363	FileUtils.moveFileToDirectory(srcFile, targetDir, false);
	364	}
eb2a2d	365	} else {
U	366	FileUtils.copyFileToDirectory(srcFile, targetDir);
	367	}
fab629	368	}
5bfd34	369	}
U	370	}
	371	}
	372	} catch (IOException ex) {
	373	logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
	374	}
	375	return result;
9e2964	376	}
U	377
7b4480	378	private void moveImgFilesToDirectory(File srcFile, File srcDir, File targetDir, boolean createDestDir) throws IOException {
U	379	String fnameext = srcFile.getName();
	380	int dotpos = fnameext.lastIndexOf(DOT);
	381	String fname = fnameext.substring(0, dotpos);
	382	String ext = fnameext.substring(dotpos);
	383	logger.fine("fname: " + fname + ", ext: " + ext);
	384	FileFilter fileFilter = new WildcardFileFilter(fname + "*" + ext);
	385	File[] files = srcDir.listFiles(fileFilter);
	386	for (int i = 0; i < files.length; i++) {
	387	logger.fine(files[i].getName());
	388	FileUtils.moveFileToDirectory(files[i], targetDir, createDestDir);
	389	}
	390	}
	391
47e9d4	392	public FileRef saveTextFileAs(String relPath, String fileName, String contents) {
U	393	FileRef savedFile = null;
	394	logger.fine(relPath + " " + fileName);
eb2a2d	395	if (!relPath.startsWith(".")) {
U	396	//FileRef datenRef = getBase();
	397	Object p = getRequest().getUserPrincipal();
	398	if(p instanceof Principal) {
	399	File targetFile = new File(getTargetDir(relPath), fileName);
	400	if(targetFile.exists()) {
	401	targetFile = getNewFileName(targetFile);
	402	} else {
	403	targetFile.getParentFile().mkdirs();
	404	}
	405	saveToFile(targetFile, contents);
47e9d4	406	}
U	407	}
	408	return savedFile;
	409	}
	410
	411	private File getNewFileName(File file) {
	412	File dir = file.getParentFile();
	413	String targetName = file.getName();
	414	logger.fine("targetName: " + targetName);
	415	String ext = "";
	416	int dotpos = targetName.indexOf(".");
	417	if(dotpos > -1) {
	418	ext = targetName.substring(dotpos);
	419	targetName = targetName.substring(0, dotpos);
	420	}
	421	logger.fine("targetName: " + targetName + ", ext: " + ext);
	422	int i = 1;
	423	while(file.exists()) {
	424	StringBuffer buf = new StringBuffer();
	425	buf.append(targetName);
	426	buf.append("-");
	427	buf.append(i);
	428	if(ext.length() > 0) {
	429	buf.append(ext);
	430	}
	431	file = new File(dir, buf.toString());
	432	i++;
	433	}
	434	logger.fine("new file: " + file.getName());
	435	return file;
942d63	436	}
47e9d4	437
U	438	private FileRef saveToFile(File targetFile, String contents) {
ea7193	439	FileRef savedFile = null;
e5ff42	440	try {
47e9d4	441	targetFile.createNewFile();
c95ff5	442	FileWriter w = new FileWriter(targetFile, Charset.forName("UTF-8"));
942d63	443	//w.write(StringEscapeUtils.unescapeHtml(contents));
47e9d4	444	w.write(contents);
U	445	w.flush();
	446	w.close();
	447	savedFile = new FileRef(
	448	targetFile.getAbsolutePath(),
	449	targetFile.isDirectory(),
	450	targetFile.isHidden(),
	451	targetFile.lastModified(),
	452	targetFile.length());
e5ff42	453	} catch (IOException ex) {
47e9d4	454	logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
U	455	}
	456	return savedFile;
	457	}
	458
	459	public FileRef saveTextFile(String relPath, String fileName, String contents) {
	460	FileRef savedFile = null;
	461	logger.fine(relPath + " " + fileName);
eb2a2d	462	if (!relPath.startsWith(".")) {
U	463	//FileRef datenRef = getBase();
	464	Object p = getRequest().getUserPrincipal();
	465	if(p instanceof Principal) {
	466	File targetFile = new File(getTargetDir(relPath), fileName);
	467	if(targetFile.exists()) {
	468	/*
	469	muss delete() sein?
	470	pruefen: ueberschreibt der FileWriter den alteen Inhalt oder
	471	entsteht eine unerwuenschte Mischung aus altem und neuem
	472	Inhalt?
	473	*/
	474	targetFile.delete();
	475	} else {
	476	targetFile.getParentFile().mkdirs();
	477	}
	478	saveToFile(targetFile, contents);
47e9d4	479	}
e5ff42	480	}
ea7193	481	return savedFile;
U	482	}
438b16	483
U	484	public String bildVerkleinern(String relPath, String bildName) {
eb2a2d	485	if (!relPath.startsWith(".")) {
U	486	File dir = getTargetDir(relPath);
	487	File original = new File(dir, bildName);
	488	Bild bild = new Bild();
	489	//for (int i = 0; i < Bild.GR.length; i++) {
	490
438b16	491	//int gr = bild.getVariantenGroesse(i);
U	492	String ext = "";
	493	String nurname = bildName;
	494	int dotpos = bildName.indexOf(".");
	495	if (dotpos > -1) {
	496	ext = bildName.substring(dotpos);
	497	nurname = bildName.substring(0, dotpos);
	498	}
eb2a2d	499
bb9f8c	500	// 120, 240, 500, 700, 1200
U	501
	502
	503	for (int i = 0; i < Bild.GR.length; i++) {
	504	StringBuffer buf = new StringBuffer();
	505	buf.append(nurname);
	506	buf.append(bild.getVariantenName(i));
	507	buf.append(ext);
	508	File newImgFile = new File(dir, buf.toString());
	509	try {
	510	Thumbnails.of(original)
	511	.size(bild.getVariantenGroesse(i), bild.getVariantenGroesse(i))
	512	.keepAspectRatio(true)
8a8152	513	.outputQuality(0.7)
bb9f8c	514	.toFile(newImgFile);
U	515	} catch (IOException ex) {
	516	logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
	517	}
	518	}
eb2a2d	519	return "ok";
U	520	} else {
	521	return "Pfad micht erlaubt.";
	522	}
438b16	523	}
6bd2c1	524
bb9f8c	525	public String bildRotieren(String relPath, String bildName) {
U	526	if (!relPath.startsWith(".")) {
	527	File dir = getTargetDir(relPath);
	528	File original = new File(dir, bildName);
	529
	530	String ext = "";
	531	String nurname = bildName;
	532	int dotpos = bildName.indexOf(".");
	533	if (dotpos > -1) {
	534	ext = bildName.substring(dotpos);
	535	nurname = bildName.substring(0, dotpos);
	536	}
	537
	538	StringBuffer buf = new StringBuffer();
	539	buf.append(nurname);
	540	buf.append("-rot");
	541	buf.append(ext);
	542	File newImgFile = new File(dir, buf.toString());
	543
	544	logger.fine("original: " + original.getAbsolutePath() + " newImgFile: " + newImgFile.getAbsolutePath());
	545
	546	try {
	547	Thumbnails.of(original)
	548	.scale(1)
	549	.rotate(90)
	550	.toFile(newImgFile);
	551	} catch (IOException ex) {
	552	logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
	553	}
	554
	555
	556	return "ok";
	557	} else {
	558	return "Pfad micht erlaubt.";
	559	}
	560	}
af9930	561
U	562	/* --------- ZIP entpacken ---------------- */
	563
6bd2c1	564	public String extractZipfile(String relPath, String filename) {
eb2a2d	565	String result = null;
U	566	if (!relPath.startsWith(".")) {
	567	try {
	568	File targetDir = getTargetDir(relPath);
	569	File archive = new File(targetDir, filename);
	570	if(extract(archive)) {
	571	result = "ok";
	572	} else {
	573	result = "error while extracting";
	574	}
	575	} catch(Exception ex) {
	576	result = ex.getLocalizedMessage();
	577	logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
6bd2c1	578	}
U	579	}
	580	return result;
	581	}
	582
	583	/**
	584	* extract a given ZIP archive to the folder respective archive resides in
	585	* @param archive the archive to extract
	586	* @throws Exception
	587	*/
	588	private boolean extract(File archive) throws Exception {
	589	ZipFile zipfile = new ZipFile(archive);
	590	Enumeration en = zipfile.entries();
	591	while(en.hasMoreElements()) {
	592	ZipEntry zipentry = (ZipEntry) en.nextElement();
	593	unzip(zipfile, zipentry, archive.getParent());
	594	}
	595	zipfile.close();
	596	return true;
	597	}
	598
	599	/**
	600	* unzip a given entry of a given zip file to a given location
	601	* @param zipfile the zip file to read an entry from
	602	* @param zipentry the zip entry to read
	603	* @param destPath the path to the destination location for the extracted content
	604	* @throws IOException
	605	*/
	606	private void unzip(ZipFile zipfile, ZipEntry zipentry, String destPath) throws IOException {
	607	byte buf[] = new byte[1024];
	608	InputStream is = zipfile.getInputStream(zipentry);
	609	String outFileName = destPath + File.separator + zipentry.getName();
	610	File file = new File(outFileName);
	611	if(!zipentry.isDirectory()) {
	612	file.getParentFile().mkdirs();
	613	if(!file.exists())
	614	file.createNewFile();
	615	FileOutputStream fos = new FileOutputStream(file);
	616	int i = is.read(buf, 0, 1024);
	617	while(i > -1) {
	618	fos.write(buf, 0, i);
	619	i = is.read(buf, 0, 1024);
	620	}
	621	fos.close();
	622	is.close();
	623	} else {
	624	file.mkdirs();
	625	}
	626	}
	627
af9930	628	/* ------------- Ornder als ZIP packen --------------- */
U	629
	630	public String packFolder(String relPath) {
	631	if (!relPath.startsWith(".")) {
	632	try {
	633	File targetDir = getTargetDir(relPath);
	634	File parentDir = targetDir.getParentFile();
	635	StringBuffer fname = new StringBuffer();
	636	fname.append(targetDir.getName());
	637	fname.append(".zip");
	638	File archiveFile = new File(parentDir, fname.toString());
	639	FileRef folderToPack = new FileRef(targetDir.getAbsolutePath());
	640	FileRef archive = new FileRef(archiveFile.getAbsolutePath());
	641	pack(folderToPack, archive);
	642	return "ok";
	643	} catch(Exception ex) {
	644	String result = ex.getLocalizedMessage();
	645	logger.log(Level.SEVERE, result, ex);
	646	return result;
	647	}
	648	} else {
	649	return "Falsche relative Pfadangabe";
	650	}
	651	}
	652
	653	/**
	654	* pack the contents of a given folder into a new ZIP compressed archive
	655	* @param folder the folder to pack
	656	* @param archive the archive to create from the given files
	657	* @throws Exception
	658	*/
	659	private boolean pack(FileRef folder, FileRef archive) throws Exception {
	660	File file = new File(archive.getAbsolutePath());
	661	FileOutputStream fos = new FileOutputStream(file);
	662	CheckedOutputStream checksum = new CheckedOutputStream(fos, new Adler32());
	663	ZipOutputStream zos = new ZipOutputStream(checksum);
	664	pack(zos, folder.getAbsolutePath(), "");
	665	zos.flush();
	666	zos.finish();
	667	zos.close();
	668	fos.flush();
	669	fos.close();
	670	return true;
	671	}
	672
	673	/**
	674	* go through the given file structure recursively
	675	* @param zipFile the ZIP file to write to
	676	* @param srcDir the directory to pack during this cycle
	677	* @param subDir the subdirectory to append to names of file entries inside the archive
	678	* @throws IOException
	679	*/
	680	private void pack(ZipOutputStream zipFile, String srcDir, String subDir) throws IOException {
	681	File[] files = new File(srcDir).listFiles();
	682	for(int i = 0; i < files.length; i++) {
	683	if(files[i].isDirectory()) {
	684	pack(zipFile, files[i].getAbsolutePath(), subDir + File.separator + files[i].getName());
	685	}
	686	else {
	687	packFile(zipFile, subDir, files[i]);
	688	}
	689	}
	690	}
	691
	692	/**
	693	* pack a given file
	694	* @param zipFile the ZIP archive to pack to
	695	* @param dir the directory name to append to name of file entry inside archive
	696	* @param file the file to pack
	697	* @throws IOException
	698	*/
	699	private void packFile(ZipOutputStream zipFile, String dir, File file) throws IOException
	700	{
	701	FileInputStream fileinputstream = new FileInputStream(file);
	702	byte buf[] = new byte[fileinputstream.available()];
	703	fileinputstream.read(buf);
	704	String dirWithSlashes = dir.replace('\\', '/');
	705	//System.out.println("zipping " + dirWithSlashes + "/" + file.getName());
	706	ZipEntry ze = new ZipEntry(dirWithSlashes + "/" + file.getName());
	707	ze.setMethod(ZipEntry.DEFLATED);
	708	zipFile.putNextEntry(ze);
	709	zipFile.write(buf, 0, buf.length);
	710	zipFile.closeEntry();
	711	fileinputstream.close();
	712	}
	713
6bd2c1	714
438b16	715
5efd94	716	/* ---- Hilfsfunktionen ---- */
ea7193	717
547755	718	}