From fafe1b3b2b35a3c032a367d5ed76b243f6d654a9 Mon Sep 17 00:00:00 2001
From: ulrich <undisclosed>
Date: Fri, 07 Jul 2017 06:11:29 +0000
Subject: [PATCH] API fuer Listings aus der oeffentlichen Ablage hinzugefuegt

---
 src/java/de/uhilger/filecms/api/FileMgr.java |  167 +++++++++++++++++++++++--------------------------------
 1 files changed, 71 insertions(+), 96 deletions(-)

diff --git a/src/java/de/uhilger/filecms/api/FileMgr.java b/src/java/de/uhilger/filecms/api/FileMgr.java
index 8fb1ea3..f45497f 100644
--- a/src/java/de/uhilger/filecms/api/FileMgr.java
+++ b/src/java/de/uhilger/filecms/api/FileMgr.java
@@ -18,44 +18,37 @@
 
 package de.uhilger.filecms.api;
 
+import de.uhilger.filecms.data.Bild;
 import de.uhilger.filecms.data.FileRef;
-import de.uhilger.filecms.web.Initialiser;
-import de.uhilger.wbx.Bild;
 import java.awt.Container;
 import java.awt.Image;
 import java.awt.MediaTracker;
 import java.awt.Toolkit;
 import java.io.File;
 import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
 import java.io.FileReader;
 import java.io.FileWriter;
 import java.io.IOException;
+import java.io.InputStream;
 import java.io.Reader;
 import java.security.Principal;
 import java.util.ArrayList;
+import java.util.Enumeration;
 import java.util.Iterator;
 import java.util.List;
 import java.util.logging.Level;
 import java.util.logging.Logger;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipFile;
 import org.apache.commons.io.FileUtils;
 
 /**
- *
- * @author ulrich
+ * Methoden zur Verwaltung von Dateien
  */
 public class FileMgr extends Api {
   private static final Logger logger = Logger.getLogger(FileMgr.class.getName());
   
-  public static final String WBX_DATA_PATH = "daten/";
-  public static final String PUB_DIR_PATH = "www/";
-  public static final String HOME_DIR_PATH = "home/";
-  public static final String PUB_DIR_NAME = "Oeffentlich";
-  //public static final String HOME_DIR_NAME = "Persoenlicher Ordner";
-  public static final String HOME_DIR_NAME = "Persoenlich";
-  public static final String WBX_ADMIN_ROLE = "wbxAdmin";
-  
-  public static final String WBX_BASE = "$basis";
-  public static final String WBX_DATA = "$daten";
   
   public static final int OP_COPY = 1;
   public static final int OP_MOVE = 2;
@@ -369,89 +362,71 @@
 
     return "ok";
   }
+  
+  public String extractZipfile(String relPath, String filename) {
+    String result;
+    try {
+      File targetDir = getTargetDir(relPath);
+      File archive = new File(targetDir, filename);
+      if(extract(archive)) {
+        result = "ok";
+      } else {
+        result = "error while extracting";
+      }
+    } catch(Exception ex) {
+      result = ex.getLocalizedMessage();
+      logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
+    }
+    return result;
+  }
+  
+  /**
+	 * extract a given ZIP archive to the folder respective archive resides in
+	 * @param archive  the archive to extract
+	 * @throws Exception
+	 */
+	private boolean extract(File archive) throws Exception {
+		ZipFile zipfile = new ZipFile(archive);
+		Enumeration en = zipfile.entries();
+		while(en.hasMoreElements()) {
+			ZipEntry zipentry = (ZipEntry) en.nextElement();
+			unzip(zipfile, zipentry, archive.getParent());
+		}
+		zipfile.close();
+		return true;
+	}
+
+	/**
+	 * unzip a given entry of a given zip file to a given location
+	 * @param zipfile  the zip file to read an entry from
+	 * @param zipentry  the zip entry to read
+	 * @param destPath  the path to the destination location for the extracted content
+	 * @throws IOException
+	 */
+	private void unzip(ZipFile zipfile, ZipEntry zipentry, String destPath) throws IOException {
+		byte buf[] = new byte[1024];
+		InputStream is = zipfile.getInputStream(zipentry);
+		String outFileName = destPath + File.separator + zipentry.getName();
+		File file = new File(outFileName);
+		if(!zipentry.isDirectory()) {
+			file.getParentFile().mkdirs();
+			if(!file.exists())
+				file.createNewFile();
+			FileOutputStream fos = new FileOutputStream(file);
+			int i = is.read(buf, 0, 1024);
+			while(i > -1) {
+				fos.write(buf, 0, i);
+				i = is.read(buf, 0, 1024);
+			}
+			fos.close();
+			is.close();
+		} else {
+			file.mkdirs();
+		}
+	}
+
+  
 
   /* ---- Hilfsfunktionen ---- */
   
-  /**
-   * Einen relativen Pfad in einen absoluten Pfad der WebBox 
-   * aufloesen.
-   * 
-   * Nur die absoluten Pfade zu PUB_DIR_NAME, HOME_DIR_NAME 
-   * sowie WBX_BASE und WBX_DATA werden ausgegeben. Letztere 
-   * beiden nur fuer Nutzer mit der Rolle WBX_ADMIN_ROLE.
-   * 
-   * D.h., es werden nur Pfade aufgeloest, die sich innerhalb 
-   * des Ordners der WeBox befinden.
-   * 
-   * @param relPath
-   * @return 
-   */
-  private File getTargetDir(String relPath) {
-    logger.fine(relPath);
-    File targetDir;
-    String targetPath = null;
-    if(relPath.startsWith(PUB_DIR_NAME)) {
-      targetPath = PUB_DIR_PATH + getUserName() + relPath.substring(PUB_DIR_NAME.length());
-      targetDir = new File(getBase().getAbsolutePath(), targetPath);
-    } else if(relPath.startsWith(HOME_DIR_NAME)) {
-      targetPath = HOME_DIR_PATH + getUserName() + relPath.substring(HOME_DIR_NAME.length());
-      targetDir = new File(getBase().getAbsolutePath(), targetPath);
-    } else if(getRequest().isUserInRole(WBX_ADMIN_ROLE)) {
-      if(relPath.startsWith(WBX_BASE)) {
-        targetPath = getCatalinaBase();
-        targetDir = new File(targetPath, relPath.substring(WBX_BASE.length()));
-      } else if(relPath.startsWith(WBX_DATA)) {
-        targetPath = getWbxDataDir();
-        targetDir = new File(targetPath, relPath.substring(WBX_BASE.length()));
-      } else {
-        targetDir = getDefaultDir(relPath);
-      }
-    } else {
-      // kann eigentlich nicht sein..
-      targetDir = getDefaultDir(relPath);
-    }
-    logger.fine(targetPath);
-    //File targetDir = new File(getBase().getAbsolutePath(), targetPath);
-    return targetDir;
-  }
-  
-  private File getDefaultDir(String relPath) {
-    String targetPath = PUB_DIR_PATH + getUserName() + relPath.substring(PUB_DIR_NAME.length());
-    return new File(getBase().getAbsolutePath(), targetPath);
-  }
-  
-  private FileRef getBase() {
-    FileRef base = null;
-    Object o = getServletContext().getAttribute(Initialiser.FILE_BASE);
-    if(o instanceof String) {
-      String baseStr = (String) o;
-      logger.fine(baseStr);
-      File file = new File(baseStr);
-      base = new FileRef(file.getAbsolutePath(), file.isDirectory());
-    }
-    return base;
-  }
-  
-  private String getUserName() {
-    String userName = null;
-    Object p = getRequest().getUserPrincipal();
-    if(p instanceof Principal) {
-      userName = ((Principal) p).getName();
-    }
-    return userName;
-  }    
-  
-  private String getCatalinaBase() {
-    String path = getServletContext().getRealPath("/");
-    logger.fine("getRealPath: " + path); // file-cms in webapps
-    File file = new File(path);
-    file = file.getParentFile().getParentFile();
-    return file.getAbsolutePath();
-  }
-  
-  private String getWbxDataDir() {
-    String wbxBase = getBase().getAbsolutePath();
-    File file = new File(wbxBase);
-    return file.getAbsolutePath();
-  }
 }
\ No newline at end of file

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