From c28d338cf5c917a867faf58204b85203d620f06e Mon Sep 17 00:00:00 2001
From: ulrich
Date: Mon, 22 Jan 2024 11:24:26 +0000
Subject: [PATCH] Nicht benoetige Importe entfernt
---
src/de/uhilger/httpserver/cm/FileManager.java | 717 ++---------------------------------------------------------
1 files changed, 27 insertions(+), 690 deletions(-)
diff --git a/src/de/uhilger/httpserver/cm/FileManager.java b/src/de/uhilger/httpserver/cm/FileManager.java
index 19174a8..f754a93 100644
--- a/src/de/uhilger/httpserver/cm/FileManager.java
+++ b/src/de/uhilger/httpserver/cm/FileManager.java
@@ -17,41 +17,15 @@
*/
package de.uhilger.httpserver.cm;
-import com.google.gson.Gson;
import com.sun.net.httpserver.Authenticator;
-import com.sun.net.httpserver.Headers;
import com.sun.net.httpserver.HttpExchange;
import de.uhilger.httpserver.base.HttpResponder;
import de.uhilger.httpserver.base.HttpHelper;
import de.uhilger.httpserver.base.handler.FileHandler;
-import de.uhilger.httpserver.image.Datei;
-import de.uhilger.httpserver.image.ImageActor;
-import de.uhilger.httpserver.image.ImageThread;
-import de.uhilger.httpserver.image.ImageThread.ThreadListener;
+import de.uhilger.httpserver.cm.actor.Lister;
+import de.uhilger.httpserver.cm.actor.Writer;
import de.uhilger.httpserver.oauth.BearerAuthenticator;
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.io.OutputStream;
-import java.net.URLDecoder;
-import java.nio.file.DirectoryStream;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Enumeration;
-import java.util.List;
-import java.util.logging.Logger;
-import java.util.logging.Level;
-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;
/**
* <p>Der FileManager verknuepft einen HTTP-Endpunkt mit einem Ordner des lokalen
@@ -103,10 +77,7 @@
* @author Ulrich Hilger
* @version 1, 13. Mai 2021
*/
-public class FileManager extends FileHandler implements ThreadListener {
-
- /* Der Logger fuer diesen ListFileHandler */
- private static final Logger logger = Logger.getLogger(FileManager.class.getName());
+public class FileManager extends FileHandler {
/*
private static final String[] specialChars = {new String("\u00c4"), new String("\u00d6"),
@@ -134,21 +105,6 @@
public static final String ATTR_ROLE = "role";
- private final List waitingThreads;
- private final int maxThreads;
- private int threadCount;
- //private String role;
-
- //public FileManager(String absoluteDirectoryPathAndName, String role, String ctx) {
- public FileManager() {
- //super(absoluteDirectoryPathAndName, ctx);
- //super(absoluteDirectoryPathAndName);
- waitingThreads = new ArrayList();
- maxThreads = 4;
- threadCount = 0;
- //this.role = role;
- }
-
@Override
public void handle(HttpExchange e) throws IOException {
Authenticator a = e.getHttpContext().getAuthenticator();
@@ -158,669 +114,50 @@
String userId = e.getPrincipal().getUsername();
if(auth.hasRole(userId, e.getHttpContext().getAttributes().get(ATTR_ROLE).toString())) {
String method = e.getRequestMethod();
- logger.fine("method: " + method);
+ //logger.fine("method: " + method);
HttpHelper helper = new HttpHelper();
switch (method) {
case HttpHelper.HTTP_GET:
- liste(e, helper);
+ String path = e.getRequestURI().toString();
+ if (path.endsWith(STR_SLASH)) {
+ String json = new Lister().liste(helper.getFileName(e),
+ e.getHttpContext().getPath(),
+ e.getHttpContext().getAttributes().get(FileHandler.ATTR_FILE_BASE).toString(),
+ path);
+ if(null != json) {
+ HttpResponder r = new HttpResponder();
+ r.antwortSenden(e, SC_OK, json);
+ } else {
+ emptyListResponse(e);
+ }
+ } else {
+ new Lister().b64Action(helper.getFileName(e),
+ e.getHttpContext().getAttributes().get(FileHandler.ATTR_FILE_BASE).toString());
+ super.handle(e);
+ }
break;
case HttpHelper.HTTP_PUT:
- put(e, helper);
+ new Writer().put(e, helper);
break;
case HttpHelper.HTTP_POST:
- speichern(e, helper);
+ new Writer().speichern(e, helper);
break;
case HttpHelper.HTTP_DELETE:
- loeschen(e, helper);
+ new Writer().loeschen(e, helper);
break;
}
} else {
- standardHeaderUndAntwort(e, SC_FORBIDDEN, "Fehlende Rolle.");
+ new Writer().standardHeaderUndAntwort(e, SC_FORBIDDEN, "Fehlende Rolle.");
}
} else {
- standardHeaderUndAntwort(e, SC_FORBIDDEN, "Fehlende Rolle.");
+ new Writer().standardHeaderUndAntwort(e, SC_FORBIDDEN, "Fehlende Rolle.");
}
}
-
- private void put(HttpExchange exchange, HttpHelper helper) throws IOException {
- String query = exchange.getRequestURI().getQuery();
- if (query != null) {
- String[] params = query.split("=");
- for (String param : params) {
- logger.fine("param: " + param);
- }
- switch (params[0]) {
- case P_COPY:
- copyOrMove(exchange, params[1], helper.getFileName(exchange), OP_COPY);
- break;
- case P_MOVE:
- copyOrMove(exchange, params[1], helper.getFileName(exchange), OP_MOVE);
- break;
- case P_DUPLICATE:
- if(Boolean.parseBoolean(params[1])) {
- String neuerDateiName = duplizieren(exchange, helper);
- logger.fine("neuer Name: " + neuerDateiName);
- standardHeaderUndAntwort(exchange, SC_OK, neuerDateiName);
- }
- break;
- case P_RENAME:
- String neuerDateiName = umbenennen(exchange, helper, params[1]);
- logger.fine("neuer Name: " + neuerDateiName);
- standardHeaderUndAntwort(exchange, SC_OK, neuerDateiName);
- break;
- case P_ZIP:
- String path = exchange.getRequestURI().toString();
- logger.fine(path);
- String antwort = packFolder(helper.getFileName(exchange), path, exchange);
- if(antwort.equalsIgnoreCase("ok")) {
- standardHeaderUndAntwort(exchange, SC_OK, antwort);
- } else {
- standardHeaderUndAntwort(exchange, SC_UNPROCESSABLE_ENTITY, antwort);
- }
- break;
- case P_UNZIP:
- path = exchange.getRequestURI().toString();
- logger.fine(path);
- antwort = extractZipfile(helper.getFileName(exchange), path, exchange);
- if(antwort.equalsIgnoreCase("ok")) {
- standardHeaderUndAntwort(exchange, SC_OK, antwort);
- } else {
- standardHeaderUndAntwort(exchange, SC_UNPROCESSABLE_ENTITY, antwort);
- }
- break;
- }
- } else {
- speichern(exchange, helper);
- }
- }
-
- private void liste(HttpExchange e, HttpHelper helper) throws IOException {
- String path = e.getRequestURI().toString();
- logger.fine(path);
- String fName = helper.getFileName(e);
- if (path.endsWith(STR_SLASH)) {
- logger.fine("fName: " + fName);
- File dir = new File(e.getHttpContext().getAttributes().get(FileHandler.ATTR_FILE_BASE).toString(), fName);
- logger.fine("absPath: " + dir.getAbsolutePath());
- File[] files = dir.listFiles(new ImageFileFilter());
- if(files != null && files.length > 0) {
- Arrays.sort(files);
- ArrayList liste = new ArrayList();
- for (File file : files) {
- Datei datei = new Datei();
- String dateiName = file.getName();
- datei.setName(dateiName);
- if (file.isDirectory()) {
- datei.setTyp(Datei.TYP_ORDNER);
- } else {
- datei.setTyp(Datei.TYP_DATEI);
- }
- datei.setPfad(e.getHttpContext().getPath() + fName);
- String lowerName = dateiName.toLowerCase();
- if (lowerName.endsWith(ImageActor.JPEG)
- || lowerName.endsWith(ImageActor.JPG)
- || lowerName.endsWith(ImageActor.PNG)) {
- datei.setBild(true);
- String ext = dateiName.substring(dateiName.lastIndexOf(STR_DOT));
- String ohneExt = dateiName.substring(0, dateiName.lastIndexOf(STR_DOT));
- datei.setMiniurl(ohneExt + ImageActor.TN + ext);
- buildImgSrc(file, datei, ohneExt, ext);
- }
- liste.add(datei);
- }
- while(threadCount > 0) {
- try {
- Thread.sleep(50);
- } catch (InterruptedException ex) {
- Logger.getLogger(FileManager.class.getName()).log(Level.SEVERE, null, ex);
- }
- }
- if(liste.size() > 0) {
- Gson gson = new Gson();
- String json = gson.toJson(liste);
- //byte[] bytes = json.getBytes();
- //logger.fine("json: '" + json + "'");
- HttpResponder r = new HttpResponder();
- r.antwortSenden(e, SC_OK, json);
- } else {
- emptyListResponse(e);
- }
- } else {
- emptyListResponse(e);
- }
- } else {
- String lowerName = fName.toLowerCase();
- if(lowerName.contains(ImageActor.B64)) {
- ImageActor actor = new ImageActor();
- String fromName = fName.replace(ImageActor.B64, "");
- File fromFile = new File(e.getHttpContext().getAttributes().get(FileHandler.ATTR_FILE_BASE).toString(), fromName);
- File toFile = new File(e.getHttpContext().getAttributes().get(FileHandler.ATTR_FILE_BASE).toString(), fName);
- logger.fine("from " + fromFile.getAbsolutePath() + ", to " + toFile.getAbsolutePath());
- if(!toFile.exists()) {
- actor.b64Image(fromFile, toFile);
- }
- super.handle(e);
- } else {
- super.handle(e);
- }
- }
- }
-
- // data:[<mime type>][;charset=<Zeichensatz>][;base64],<Daten>
- /*
- [So. Juni 13 13:23:32 MESZ 2021] FEIN:
- file: /home/ulrich/helix-files/bild-test/10419903-14-2-1920-r.jpg,
- relname: bild-test/10419903-14-2-1920-r.jpg, ohneExt: 10419903-14-2-1920-r, ext: .jpg (de.uhilger.helix.FileManager buildImgSrc)
-
- */
- private void buildImgSrc(File file, Datei datei, String ohneExt, String ext) throws IOException {
- //logger.fine("file: " + file.getAbsolutePath() + ", ohneExt: " + ohneExt + ", ext: " + ext);
- File dir = file.getParentFile();
- String newRelName = ohneExt + ImageActor.TN + ImageActor.B64 + ext;
- File b64File = new File(dir, newRelName);
- //logger.fine("b64File: " + b64File.getAbsolutePath());
- if(!b64File.exists()) {
- //BildErzeuger be = new BildErzeuger();
- //be.bildErzeugen(dir, newRelName, BildErzeuger.TN, 120, b64File);
- ImageThread it = new ImageThread(dir, newRelName, ImageActor.TN, 120, b64File, datei, ext);
- it.addListener(this);
- if(threadCount < maxThreads) {
- ++threadCount;
- //logger.fine("Thread started, threadCount: " + threadCount);
- it.start();
- } else {
- waitingThreads.add(it);
- //logger.fine("Thread added to wait queue.");
- }
- } else {
- ImageActor be = new ImageActor();
- be.setImgSrc(datei, ext, b64File);
- }
- }
-
- @Override
- public void finished() {
- --threadCount;
- //logger.fine("Thread finished, threadCound now: " + threadCount);
- if (threadCount < maxThreads) {
- if (waitingThreads.size() > 0) {
- Object o = waitingThreads.get(0);
- if (o instanceof ImageThread) {
- waitingThreads.remove(o);
- ImageThread it = (ImageThread) o;
- ++threadCount;
- //logger.fine("Thread started from wait queue, threadCount now: " + threadCount);
- it.start();
- }
- }
- }
- }
private void emptyListResponse(HttpExchange e) throws IOException {
HttpResponder r = new HttpResponder();
String json = "{}";
- logger.log(Level.FINE, "json: ''{0}''", json);
+ //logger.log(Level.FINE, "json: ''{0}''", json);
r.antwortSenden(e, SC_OK, json);
}
-
- private void speichern(HttpExchange exchange, HttpHelper helper) throws IOException {
- String fileName = helper.getFileName(exchange);
- logger.info("fileName: " + fileName);
-
- // file ist die Datei, um die es geht
- File file = new File(exchange.getHttpContext().getAttributes().get(FileHandler.ATTR_FILE_BASE).toString(), fileName);
-
- String method = exchange.getRequestMethod();
- if (fileName.endsWith(STR_SLASH)) {
- logger.info("neuer Ordner: " + file.getAbsolutePath());
- // neuen Ordner erstellen oder ablehnen, wenn der Ordner schon existiert
- if (method.equalsIgnoreCase(HttpHelper.HTTP_POST)) {
- if (!file.exists()) {
- file.mkdir();
- standardHeaderUndAntwort(exchange, SC_OK, file.getAbsolutePath());
- } else {
- String antwort = "Ordner existiert bereits.";
- standardHeaderUndAntwort(exchange, SC_UNPROCESSABLE_ENTITY, antwort);
- }
- } else {
- String antwort = "PUT fuer neuen Ordner nicht erlaubt, bitte POST verwenden.";
- standardHeaderUndAntwort(exchange, SC_METHOD_NOT_ALLOWED, antwort);
- }
- } else {
- logger.info("Datei speichern: " + file.getAbsolutePath());
- // Datei speichern
- if (method.equalsIgnoreCase(HttpHelper.HTTP_POST)) {
- if (file.exists()) {
- FileTransporter trans = new FileTransporter();
- file = trans.getNewFileName(file);
- }
- } else if (method.equalsIgnoreCase(HttpHelper.HTTP_PUT)) {
- if (file.exists()) {
- /*
- muss delete() sein?
- pruefen: ueberschreibt der FileWriter den alteen Inhalt oder
- entsteht eine unerwuenschte Mischung aus altem und neuem
- Inhalt?
- */
- file.delete();
- } else {
- file.getParentFile().mkdirs();
- }
- }
- // Request Body mit dem Dateiinhalt in einen String lesen
- StringBuilder sb = new StringBuilder();
- InputStream is = exchange.getRequestBody();
- BufferedReader in = new BufferedReader(new InputStreamReader(is));
- String line = in.readLine();
- while (line != null) {
- sb.append(line);
- line = in.readLine();
- }
-
- // dekodieren
- String content = sb.toString();
- logger.fine(content);
- String decoded = URLDecoder.decode(content, UTF8);
- logger.fine(decoded);
-
- // in Datei schreiben
- byte[] bytes = decoded.getBytes();
- file.createNewFile();
- OutputStream os = new FileOutputStream(file);
- os.write(bytes);
- os.flush();
- os.close();
- is.close();
-
- // Antwort senden
- standardHeaderUndAntwort(exchange, SC_OK, file.getAbsolutePath());
- }
- }
-
- private void copyOrMove(HttpExchange exchange, String quelle, String ziel, int op) throws IOException {
- logger.fine("quelle: " + quelle + ", ziel: " + ziel);
- String[] dateiNamen = dateiliste(exchange);
- copyOrMoveFiles(quelle, ziel, dateiNamen, op, exchange);
- standardHeaderUndAntwort(exchange, SC_OK, "Dateien verarbeitet.");
- }
-
- private String copyOrMoveFiles(String fromPath, String toPath, String[] fileNames, int operation, HttpExchange e) throws IOException {
- String result = null;
- File srcDir = new File(e.getHttpContext().getAttributes().get(FileHandler.ATTR_FILE_BASE).toString(), fromPath);
- File targetDir = new File(e.getHttpContext().getAttributes().get(FileHandler.ATTR_FILE_BASE).toString(), toPath);
- for (String fileName : fileNames) {
- File srcFile = new File(srcDir, fileName);
- logger.fine("srcFile: " + srcFile);
- if (srcFile.isDirectory()) {
- logger.fine("srcFile is directory.");
- OrdnerBearbeiter bearbeiter = new OrdnerBearbeiter();
- bearbeiter.setTargetDir(targetDir.toPath());
- bearbeiter.setOperation(operation);
- Files.walkFileTree(srcFile.toPath(), bearbeiter);
- } else {
- Path source = srcFile.toPath();
- File destFile = targetDir.toPath().resolve(source.getFileName()).toFile();
- if (destFile.exists()) {
- FileTransporter trans = new FileTransporter();
- destFile = trans.getNewFileName(destFile);
- }
- if (operation == OP_MOVE) {
- String fname = srcFile.getName().toLowerCase();
- if (fname.endsWith(ImageActor.JPEG)
- || fname.endsWith(ImageActor.JPG)
- || fname.endsWith(ImageActor.PNG)) {
- moveImgFilesToDirectory(srcFile, srcDir, targetDir, false);
- } else {
- Files.move(source, destFile.toPath());
- }
- } else {
- Files.copy(source, destFile.toPath());
- }
- }
- }
- return result;
- }
-
- private void loeschen(HttpExchange exchange, HttpHelper helper) throws IOException {
- String[] dateiNamen = dateiliste(exchange);
- String relPfad = helper.getFileName(exchange);
- deleteFiles(relPfad, Arrays.asList(dateiNamen), exchange);
- standardHeaderUndAntwort(exchange, SC_OK, "Dateien geloescht.");
- }
-
- private String[] dateiliste(HttpExchange exchange) throws IOException {
- String body = new HttpHelper().bodyLesen(exchange);
- logger.fine("dateien: " + body);
- Gson gson = new Gson();
- return gson.fromJson(body, String[].class);
- }
-
- public String duplizieren(HttpExchange exchange, HttpHelper helper) throws IOException {
- String relPfad = helper.getFileName(exchange);
- File srcFile = new File(exchange.getHttpContext().getAttributes().get(FileHandler.ATTR_FILE_BASE).toString(), relPfad);
- String fnameext = srcFile.getName();
- int dotpos = fnameext.lastIndexOf(STR_DOT);
- String fname = fnameext.substring(0, dotpos);
- String ext = fnameext.substring(dotpos);
- File srcDir = srcFile.getParentFile();
- File destFile = new File(srcDir, fname + "-Kopie" + ext);
- int i = 1;
- while (destFile.exists()) {
- destFile = new File(srcDir, fname + "-Kopie-" + Integer.toString(++i) + ext);
- }
- Files.copy(srcFile.toPath(), destFile.toPath());
- return destFile.getName();
- }
-
- public String umbenennen(HttpExchange exchange, HttpHelper helper, String neuerName) throws IOException {
- File neueDatei;
- String relPfad = helper.getFileName(exchange);
- File file = new File(exchange.getHttpContext().getAttributes().get(FileHandler.ATTR_FILE_BASE).toString(), relPfad);
- String fname = file.getName().toLowerCase();
- if(fname.endsWith(ImageActor.JPEG) || fname.endsWith(ImageActor.JPG) || fname.endsWith(ImageActor.PNG)) {
- neueDatei = renameImgFiles(file.getParentFile(), file, neuerName);
- } else {
- neueDatei = new File(file.getParentFile(), neuerName);
- file.renameTo(neueDatei);
- }
- return neueDatei.getName();
- }
-
- public File renameImgFiles(File targetDir, File targetFile, String newName) throws IOException {
- String alt;
- String neu;
- File neueDatei = targetFile;
-
- int newdotpos = newName.lastIndexOf(STR_DOT);
- String newfname = newName.substring(0, newdotpos);
- String newext = newName.substring(newdotpos);
- logger.fine("newfname: " + newfname + ", newext: " + newext);
-
- String fnameext = targetFile.getName();
- int dotpos = fnameext.lastIndexOf(STR_DOT);
- String fname = fnameext.substring(0, dotpos);
- String ext = fnameext.substring(dotpos);
- logger.fine("fname: " + fname + ", ext: " + ext);
-
- DirectoryStream<Path> stream = Files.newDirectoryStream(targetDir.toPath(), fname + "*" + ext); //"*.{txt,doc,pdf,ppt}"
- for (Path path : stream) {
- logger.fine(path.getFileName().toString());
- alt = path.getFileName().toString();
- logger.fine("alt: " + alt);
- if(alt.contains(ImageActor.TN)) {
- neu = newfname + ImageActor.TN + newext;
- } else if (alt.contains(ImageActor.KL)) {
- neu = newfname + ImageActor.KL + newext;
- } else if(alt.contains(ImageActor.GR)) {
- neu = newfname + ImageActor.GR + newext;
- } else if(alt.contains(ImageActor.MT)) {
- neu = newfname + ImageActor.MT + newext;
- } else if(alt.contains(ImageActor.SM)) {
- neu = newfname + ImageActor.SM + newext;
- } else {
- neu = newName;
- }
- neueDatei = new File(targetDir, neu);
- path.toFile().renameTo(neueDatei);
- }
- stream.close();
- return neueDatei;
- }
-
-
- private String deleteFiles(String relPath, List<String> fileNames, HttpExchange e) {
- String result = null;
- try {
- logger.fine(fileNames.toString());
- if (!relPath.startsWith(STR_DOT)) {
- File targetDir = new File(e.getHttpContext().getAttributes().get(FileHandler.ATTR_FILE_BASE).toString(), relPath); // getTargetDir(relPath);
- logger.fine("targetDir: " + targetDir);
- for (String fileName : fileNames) {
- File targetFile = new File(targetDir, fileName);
- logger.fine(targetFile.getAbsolutePath());
- if (targetFile.isDirectory()) {
- OrdnerBearbeiter bearbeiter = new OrdnerBearbeiter();
- bearbeiter.setOperation(OP_DELETE);
- Files.walkFileTree(targetFile.toPath(), bearbeiter);
- } else {
- /*
- Wenn targetFile mit jpg, jpeg oder png endet,
- muss eine Unterfunktion eine Liste aller Dateien bilden,
- die so heissen, also z.B. alle [Dateiname]*.jpg
- */
- String fname = targetFile.getName().toLowerCase();
- if (fname.endsWith(ImageActor.JPEG)
- || fname.endsWith(ImageActor.JPG)
- || fname.endsWith(ImageActor.PNG)) {
- deleteImgFiles(targetDir, targetFile);
- } else {
- targetFile.delete();
- }
- }
- }
- result = "deleted";
- }
- } catch (Throwable ex) {
- logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
- }
- return result;
- }
-
- private void deleteImgFiles(File targetDir, File targetFile) throws IOException {
- String fnameext = targetFile.getName();
- int dotpos = fnameext.lastIndexOf(STR_DOT);
- String fname = fnameext.substring(0, dotpos);
- String ext = fnameext.substring(dotpos);
- logger.fine("fname: " + fname + ", ext: " + ext);
- DirectoryStream<Path> stream = Files.newDirectoryStream(targetDir.toPath(), fname + "*" + ext); //"*.{txt,doc,pdf,ppt}"
- for (Path path : stream) {
- logger.fine(path.getFileName().toString());
- Files.delete(path);
- }
- stream.close();
- }
-
- private void moveImgFilesToDirectory(File srcFile, File srcDir, File targetDir, boolean createDestDir) throws IOException {
- String fnameext = srcFile.getName();
- int dotpos = fnameext.lastIndexOf(STR_DOT);
- String fname = fnameext.substring(0, dotpos);
- String ext = fnameext.substring(dotpos);
- logger.fine("fname: " + fname + ", ext: " + ext);
- Path targetPath = targetDir.toPath();
- DirectoryStream<Path> stream = Files.newDirectoryStream(srcDir.toPath(), fname + "*" + ext); //"*.{txt,doc,pdf,ppt}"
- for (Path path : stream) {
- logger.fine(path.getFileName().toString());
- //Files.delete(path);
- Files.move(path, targetPath.resolve(path.getFileName()));
- }
- stream.close();
- }
-
- private void standardHeaderUndAntwort(HttpExchange exchange, int status, String antwort) throws IOException {
- Headers resHeaders = exchange.getResponseHeaders();
- resHeaders.add(CONTENT_TYPE, HttpHelper.CT_TEXT_HTML);
- new HttpResponder().antwortSenden(exchange, status, antwort);
- }
-
- /* --------- ZIP entpacken ---------------- */
-
- public String extractZipfile(String fName, String relPath, HttpExchange e) {
- logger.fine("fName: " + fName + ", relPath: " + relPath);
- String result = null;
- if (!relPath.startsWith(".")) {
- try {
- //File targetDir = new File(fileBase, relPath);
- //File targetDir = getTargetDir(relPath);
- File archive = new File(e.getHttpContext().getAttributes().get(FileHandler.ATTR_FILE_BASE).toString(), fName);
- if(extract(archive)) {
- result = "ok";
- } else {
- result = "error while extracting";
- }
- } catch(Exception ex) {
- result = ex.getLocalizedMessage();
- logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
- }
- } else {
- result = "Falsche relative Pfadangabe.";
- }
- 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();
- }
- }
-
- /* --------------- Ordner packen ----------------- */
-
- /**
- * Einen Ordner packen.
- *
- * Als Ziel wird eine neue Datei mit Dateiendung '.zip' erzeugt, die so
- * heisst wie der Ordner, der gapckt werden soll. Die Datei mit
- * dem gepackten Ordnerinhalt wird in dem Ordner angelegt, der den zu
- * packenden Ordner enthaelt.
- *
- * @param fName Name des zu packenden Ordners
- * @param relPath relativer Pfad zum Ordner, der gepackt werden soll
- * @return die Meldung mit dem Ergebnis. Wenn die Meldung nicht "ok" lautet
- * wurde die ZIP-Datei nicht erzeugt und die Meldung nennt den Grund.
- */
- public String packFolder(String fName, String relPath, HttpExchange e) {
- if (!relPath.startsWith(".")) {
- try {
- //String fName = getFileName(e);
- logger.fine("fName: " + fName);
- if (fName.endsWith(STR_SLASH)) {
- File dir = new File(e.getHttpContext().getAttributes().get(FileHandler.ATTR_FILE_BASE).toString(), fName);
- if(dir.isDirectory()) {
- logger.fine("absPath: " + dir.getAbsolutePath());
- File parentDir = dir.getParentFile();
- StringBuilder fname = new StringBuilder();
- fname.append(dir.getName());
- fname.append(".zip");
- File archiveFile = new File(parentDir, fname.toString());
- pack(dir.getAbsolutePath(), archiveFile.getAbsolutePath());
- return "ok";
- } else {
- return "kein Ordner";
- }
- } else {
- return "kein Ordner";
- }
- } 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 absolute path and name of the folder to pack
- * @param archive absolute path and name of the archive to create from the given files
- * @throws Exception
- */
- private boolean pack(String folder, String archive) throws Exception {
- File file = new File(archive);
- FileOutputStream fos = new FileOutputStream(file);
- CheckedOutputStream checksum = new CheckedOutputStream(fos, new Adler32());
- ZipOutputStream zos = new ZipOutputStream(checksum);
- pack(zos, folder, "");
- 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();
- }
-
-
-
-
}
--
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