From 020a97355fdd8133da6cfd490b7b1e9618a1eb06 Mon Sep 17 00:00:00 2001
From: ulrich
Date: Mon, 15 Jan 2024 16:34:39 +0000
Subject: [PATCH] Packen von FileManager in Klasse Zipper, Entpacken in Unzipper verlegt

---
 src/de/uhilger/httpserver/cm/FileManager.java |  288 ++++++++++++--------------------------------------------
 1 files changed, 64 insertions(+), 224 deletions(-)

diff --git a/src/de/uhilger/httpserver/cm/FileManager.java b/src/de/uhilger/httpserver/cm/FileManager.java
index 19174a8..ea70988 100644
--- a/src/de/uhilger/httpserver/cm/FileManager.java
+++ b/src/de/uhilger/httpserver/cm/FileManager.java
@@ -31,7 +31,6 @@
 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;
@@ -43,15 +42,9 @@
 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
@@ -105,9 +98,6 @@
  */
 public class FileManager extends FileHandler implements ThreadListener {
 
-  /* Der Logger fuer diesen ListFileHandler */
-  private static final Logger logger = Logger.getLogger(FileManager.class.getName());
-
   /*
   private static final String[] specialChars = {new String("\u00c4"), new String("\u00d6"),
     new String("\u00dc"), new String("\u00e4"), new String("\u00f6"), new String("\u00fc"), new String("\u00df")};
@@ -158,7 +148,7 @@
       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:
@@ -187,7 +177,7 @@
     if (query != null) {
       String[] params = query.split("=");
       for (String param : params) {
-        logger.fine("param: " + param);
+        //logger.fine("param: " + param);
       }
       switch (params[0]) {
         case P_COPY:
@@ -199,19 +189,19 @@
         case P_DUPLICATE:
           if(Boolean.parseBoolean(params[1])) {
             String neuerDateiName = duplizieren(exchange, helper);
-            logger.fine("neuer Name: " + neuerDateiName);
+            //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);
+          //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);
+          //logger.fine(path);
+          String antwort = new Zipper().packFolder(helper.getFileName(exchange), path, exchange.getHttpContext().getAttributes().get(FileHandler.ATTR_FILE_BASE).toString());
           if(antwort.equalsIgnoreCase("ok")) {
             standardHeaderUndAntwort(exchange, SC_OK, antwort);
           } else {
@@ -220,8 +210,8 @@
           break;
         case P_UNZIP:
           path = exchange.getRequestURI().toString();
-          logger.fine(path);
-          antwort = extractZipfile(helper.getFileName(exchange), path, exchange);
+          //logger.fine(path);
+          antwort = new Unzipper().extractZipfile(helper.getFileName(exchange), path, exchange.getHttpContext().getAttributes().get(FileHandler.ATTR_FILE_BASE).toString());
           if(antwort.equalsIgnoreCase("ok")) {
             standardHeaderUndAntwort(exchange, SC_OK, antwort);
           } else {
@@ -233,15 +223,39 @@
       speichern(exchange, helper);
     }
   }
+  
+  public class DirList {
+    private String pfad;
+    private List<Datei> dateien;
+
+    public String getPfad() {
+      return pfad;
+    }
+
+    public void setPfad(String pfad) {
+      this.pfad = pfad;
+    }
+
+    public List<Datei> getDateien() {
+      return dateien;
+    }
+
+    public void setDateien(List<Datei> dateien) {
+      this.dateien = dateien;
+    }
+    
+    
+  }
 
   private void liste(HttpExchange e, HttpHelper helper) throws IOException {
     String path = e.getRequestURI().toString();
-    logger.fine(path);
+    //logger.fine(path);
     String fName = helper.getFileName(e);
+    String dirListPath = e.getHttpContext().getPath() + fName;
     if (path.endsWith(STR_SLASH)) {      
-      logger.fine("fName: " + fName);
+      //logger.fine("fName: " + fName);
       File dir = new File(e.getHttpContext().getAttributes().get(FileHandler.ATTR_FILE_BASE).toString(), fName);
-      logger.fine("absPath: " + dir.getAbsolutePath());
+      //logger.fine("absPath: " + dir.getAbsolutePath());
       File[] files = dir.listFiles(new ImageFileFilter());
       if(files != null && files.length > 0) {
         Arrays.sort(files);
@@ -255,7 +269,7 @@
           } else {
             datei.setTyp(Datei.TYP_DATEI);
           }
-          datei.setPfad(e.getHttpContext().getPath() + fName);
+          //datei.setPfad(e.getHttpContext().getPath() + fName);
           String lowerName = dateiName.toLowerCase();
           if (lowerName.endsWith(ImageActor.JPEG)
                   || lowerName.endsWith(ImageActor.JPG)
@@ -276,8 +290,12 @@
           }
         }
         if(liste.size() > 0) {
+          DirList list = new DirList();
+          list.setPfad(dirListPath);
+          list.setDateien(liste);
           Gson gson = new Gson();
-          String json = gson.toJson(liste);
+          //String json = gson.toJson(liste);
+          String json = gson.toJson(list);
           //byte[] bytes = json.getBytes();
           //logger.fine("json: '" + json + "'");
           HttpResponder r = new HttpResponder();
@@ -295,7 +313,7 @@
         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());
+        //logger.fine("from " + fromFile.getAbsolutePath() + ", to " + toFile.getAbsolutePath());
         if(!toFile.exists()) {
           actor.b64Image(fromFile, toFile);
         }
@@ -359,20 +377,20 @@
   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);
+    //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());
+      //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()) {
@@ -387,7 +405,7 @@
         standardHeaderUndAntwort(exchange, SC_METHOD_NOT_ALLOWED, antwort);        
       }
     } else {
-      logger.info("Datei speichern: " + file.getAbsolutePath());
+      //logger.info("Datei speichern: " + file.getAbsolutePath());
       // Datei speichern
       if (method.equalsIgnoreCase(HttpHelper.HTTP_POST)) {
         if (file.exists()) {
@@ -419,9 +437,9 @@
 
       // dekodieren
       String content = sb.toString();
-      logger.fine(content);
+      //logger.fine(content);
       String decoded = URLDecoder.decode(content, UTF8);
-      logger.fine(decoded);
+      //logger.fine(decoded);
 
       // in Datei schreiben
       byte[] bytes = decoded.getBytes();
@@ -438,7 +456,7 @@
   }
 
   private void copyOrMove(HttpExchange exchange, String quelle, String ziel, int op) throws IOException {
-    logger.fine("quelle: " + quelle + ", ziel: " + ziel);
+    //logger.fine("quelle: " + quelle + ", ziel: " + ziel);
     String[] dateiNamen = dateiliste(exchange);
     copyOrMoveFiles(quelle, ziel, dateiNamen, op, exchange);
     standardHeaderUndAntwort(exchange, SC_OK, "Dateien verarbeitet.");
@@ -450,9 +468,9 @@
     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);
+      //logger.fine("srcFile: " + srcFile);
       if (srcFile.isDirectory()) {
-        logger.fine("srcFile is directory.");
+        //logger.fine("srcFile is directory.");
         OrdnerBearbeiter bearbeiter = new OrdnerBearbeiter();
         bearbeiter.setTargetDir(targetDir.toPath());
         bearbeiter.setOperation(operation);
@@ -490,7 +508,7 @@
 
   private String[] dateiliste(HttpExchange exchange) throws IOException {
     String body = new HttpHelper().bodyLesen(exchange);
-    logger.fine("dateien: " + body);
+    //logger.fine("dateien: " + body);
     Gson gson = new Gson();
     return gson.fromJson(body, String[].class);
   }
@@ -534,19 +552,19 @@
     int newdotpos = newName.lastIndexOf(STR_DOT);
     String newfname = newName.substring(0, newdotpos);
     String newext = newName.substring(newdotpos);
-    logger.fine("newfname: " + newfname + ", newext: " + newext);
+    //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);
+    //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());
+      //logger.fine(path.getFileName().toString());
       alt = path.getFileName().toString();
-      logger.fine("alt: " + alt);
+      //logger.fine("alt: " + alt);
       if(alt.contains(ImageActor.TN)) {
         neu = newfname + ImageActor.TN + newext;
       } else if (alt.contains(ImageActor.KL)) {
@@ -571,13 +589,13 @@
   private String deleteFiles(String relPath, List<String> fileNames, HttpExchange e) {
     String result = null;
     try {
-      logger.fine(fileNames.toString());
+      //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);
+        //logger.fine("targetDir: " + targetDir);
         for (String fileName : fileNames) {
           File targetFile = new File(targetDir, fileName);
-          logger.fine(targetFile.getAbsolutePath());
+          //logger.fine(targetFile.getAbsolutePath());
           if (targetFile.isDirectory()) {
             OrdnerBearbeiter bearbeiter = new OrdnerBearbeiter();
             bearbeiter.setOperation(OP_DELETE);
@@ -601,7 +619,7 @@
         result = "deleted";
       }
     } catch (Throwable ex) {
-      logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
+      //logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
     }
     return result;
   }
@@ -611,10 +629,10 @@
     int dotpos = fnameext.lastIndexOf(STR_DOT);
     String fname = fnameext.substring(0, dotpos);
     String ext = fnameext.substring(dotpos);
-    logger.fine("fname: " + fname + ", ext: " + ext);
+    //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());
+      //logger.fine(path.getFileName().toString());
       Files.delete(path);
     }
     stream.close();
@@ -625,11 +643,11 @@
     int dotpos = fnameext.lastIndexOf(STR_DOT);
     String fname = fnameext.substring(0, dotpos);
     String ext = fnameext.substring(dotpos);
-    logger.fine("fname: " + fname + ", ext: " + ext);
+    //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());
+      //logger.fine(path.getFileName().toString());
       //Files.delete(path);
       Files.move(path, targetPath.resolve(path.getFileName()));
     }
@@ -642,185 +660,7 @@
     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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