From 47e9d48f23fb2803f9c6cc80e48b2b3884d4841f Mon Sep 17 00:00:00 2001
From: ulrich <undisclosed>
Date: Mon, 06 Mar 2017 07:05:03 +0000
Subject: [PATCH] Speichern unter

---
 src/java/de/uhilger/filecms/api/FileMgr.java |  342 +++++++++++++++++++++++++++++++++++++++++++++++++++++---
 1 files changed, 320 insertions(+), 22 deletions(-)

diff --git a/src/java/de/uhilger/filecms/api/FileMgr.java b/src/java/de/uhilger/filecms/api/FileMgr.java
index b7f7a70..183c5ff 100644
--- a/src/java/de/uhilger/filecms/api/FileMgr.java
+++ b/src/java/de/uhilger/filecms/api/FileMgr.java
@@ -1,34 +1,332 @@
+/*
+    Dateiverwaltung - File management in your browser
+    Copyright (C) 2017 Ulrich Hilger, http://uhilger.de
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation, either version 3 of the
+    License, or (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
 package de.uhilger.filecms.api;
 
-import de.uhilger.filesystem.FileRef;
-import de.uhilger.transit.web.WebKontext;
-import javax.servlet.ServletContext;
+import de.uhilger.filecms.data.FileRef;
+import de.uhilger.filecms.web.Initialiser;
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.security.Principal;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import org.apache.commons.io.FileUtils;
 
 /**
  *
  * @author ulrich
  */
-public class FileMgr implements WebKontext {
+public class FileMgr extends Api {
+  private static final Logger logger = Logger.getLogger(FileMgr.class.getName());
   
-  public static final String FILE_BASE = "fileBase";
+  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";
   
-  private ServletContext ctx;
+  public static final int OP_COPY = 1;
+  public static final int OP_MOVE = 2;
   
-  public FileRef getBase() {
-    FileRef ref = null;
-    String fileBase = getServletContext().getInitParameter(FILE_BASE);
-    return ref;
+  public String hallo() {
+    return "Hallo Welt!";
   }
-
-  @Override
-  public ServletContext getServletContext() {
-    return ctx;
-  }
-
-  @Override
-  public void setServletContext(ServletContext servletContext) {
-    this.ctx = servletContext;
-  }
-
   
-}
+  public List<FileRef> list(String relPath) {
+    List<FileRef> files = new ArrayList();
+    if(relPath.length() == 0) {
+      FileRef namedPublicFolder = new FileRef(PUB_DIR_NAME, true);
+      logger.finer(namedPublicFolder.getAbsolutePath());
+      FileRef namedHomeFolder = new FileRef(HOME_DIR_NAME, true);
+      logger.finer(namedHomeFolder.getAbsolutePath());
+      files = new ArrayList();
+      files.add(namedHomeFolder);
+      files.add(namedPublicFolder);
+    } else {
+      String path = getTargetDir(relPath).getAbsolutePath();
+      logger.fine("listing path: " + path);
+      File dir = new File(path);
+      if(dir.exists()) {
+        File[] fileArray = dir.listFiles();
+        for(int i = 0; i < fileArray.length; i++) {
+          logger.fine(fileArray[i].toURI().toString());
+          String fname = fileArray[i].toURI().toString().replace("file:/", "");
+          if(fileArray[i].isDirectory()) {
+            fname = fname.substring(0, fname.length() - 1);
+          }
+          logger.fine(fname);
+          files.add(new FileRef(fname, fileArray[i].isDirectory()));
+        }
+      }
+    }    
+    return files;
+  }
+  
+  public FileRef newFolder(String relPath, String folderName) {
+    logger.finer(relPath);
+    String targetPath = null;
+    if(relPath.startsWith(PUB_DIR_NAME)) {
+      targetPath = PUB_DIR_PATH + getUserName() + "/" + relPath.substring(PUB_DIR_NAME.length()) + "/" + folderName;
+    } else if(relPath.startsWith(HOME_DIR_NAME)) {
+      targetPath = HOME_DIR_PATH + getUserName() + "/" + relPath.substring(HOME_DIR_NAME.length()) + "/" + folderName;
+    } else {
+      // kann eigentlich nicht sein..
+    }
+    logger.finer(targetPath);
+    File targetDir = new File(getBase().getAbsolutePath(), targetPath);
+    targetDir.mkdirs();
+    return new FileRef(targetDir.getAbsolutePath(), true);
+  }
+  
+  public String getCode(String relPath, String fileName) {
+    String code = null;
+    
+    Object p = getRequest().getUserPrincipal();
+    if(p instanceof Principal) {
+      FileReader reader = null;
+      try {
+        File targetFile = new File(getTargetDir(relPath), fileName);
+        reader = new FileReader(targetFile);
+        StringBuffer buf = new StringBuffer();
+        char[] readBuffer = new char[1024];
+        int charsRead = reader.read(readBuffer);
+        while(charsRead > -1) {
+          buf.append(readBuffer, 0, charsRead);
+          charsRead = reader.read(readBuffer);
+        }
+        code = buf.toString();
+      } catch (FileNotFoundException ex) {
+        Logger.getLogger(FileMgr.class.getName()).log(Level.SEVERE, null, ex);
+      } catch (IOException ex) {
+        Logger.getLogger(FileMgr.class.getName()).log(Level.SEVERE, null, ex);
+      } finally {
+        try {
+          reader.close();
+        } catch (IOException ex) {
+          Logger.getLogger(FileMgr.class.getName()).log(Level.SEVERE, null, ex);
+        }
+      }
+      
+    }    
+    
+    return code;
+  }
+  
+  public String renameFile(String relPath, String fname, String newName) {
+    File targetDir = getTargetDir(relPath);
+    File file = new File(targetDir, fname);
+    file.renameTo(new File(targetDir, newName));
+    return fname + " umbenannt zu " + newName;
+  }
+  
+  public String deleteFiles(String relPath, List fileNames) {
+    String result = null;
+    try {
+      logger.fine(fileNames.toString());
+      File targetDir = getTargetDir(relPath);
+      for(int i=0; i < fileNames.size(); i++) {
+        Object o = fileNames.get(i);
+        if(o instanceof ArrayList) {
+          ArrayList al = (ArrayList) o;
+          logger.fine(al.get(0).toString());
+          File targetFile = new File(targetDir, al.get(0).toString());
+          logger.fine(targetFile.getAbsolutePath());
+          if(targetFile.isDirectory()) {
+            FileUtils.deleteDirectory(targetFile);
+          } else {
+            targetFile.delete();
+          }
+        }
+      }
+      result = "deleted";
+    } catch (Throwable ex) {
+      logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
+    }
+    return result;
+  }
+  
+  public String copyFiles(String fromPath, String toPath, List fileNames) {
+    return copyOrMoveFiles(fromPath, toPath, fileNames, OP_COPY);
+  }
+  
+  public String moveFiles(String fromPath, String toPath, List fileNames) {
+    return copyOrMoveFiles(fromPath, toPath, fileNames, OP_MOVE);
+  }
+  
+  private String copyOrMoveFiles(String fromPath, String toPath, List fileNames, int operation) {
+    String result = null;
+    try {
+      File srcDir = getTargetDir(fromPath);
+      File targetDir = getTargetDir(toPath);
+      Iterator i = fileNames.iterator();
+      while(i.hasNext()) {
+        Object o = i.next();
+        if (o instanceof ArrayList) {
+          ArrayList al = (ArrayList) o;
+          File srcFile = new File(srcDir, al.get(0).toString());
+          if(srcFile.isDirectory()) {
+            if(operation == OP_MOVE) {
+              FileUtils.moveDirectoryToDirectory(srcFile, targetDir, false);
+            } else {
+              FileUtils.copyDirectoryToDirectory(srcFile, targetDir);
+            }
+          } else {
+            if(operation == OP_MOVE) {
+              FileUtils.moveFileToDirectory(srcFile, targetDir, false);
+            } else {
+              FileUtils.copyFileToDirectory(srcFile, targetDir);              
+            }
+          }
+        }
+      }
+    } catch (IOException ex) {
+      logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
+    }
+    return result;
+  }
+  
+  public FileRef saveTextFileAs(String relPath, String fileName, String contents) {
+    FileRef savedFile = null;
+    logger.fine(relPath + " " + fileName);
+    //FileRef datenRef = getBase();
+    Object p = getRequest().getUserPrincipal();
+    if(p instanceof Principal) {
+      File targetFile = new File(getTargetDir(relPath), fileName);
+      if(targetFile.exists()) {
+        targetFile = getNewFileName(targetFile);
+      } else {
+        targetFile.getParentFile().mkdirs();
+      }
+      saveToFile(targetFile, contents);
+    }
+    return savedFile;
+  }
+  
+  private File getNewFileName(File file) {
+    File dir = file.getParentFile();
+    String targetName = file.getName();
+    logger.fine("targetName: " + targetName);
+    String ext = "";
+    int dotpos = targetName.indexOf(".");
+    if(dotpos > -1) {
+      ext = targetName.substring(dotpos);
+      targetName = targetName.substring(0, dotpos);
+    }
+    logger.fine("targetName: " + targetName + ", ext: " + ext);
+    int i = 1;
+    while(file.exists()) {
+      StringBuffer buf = new StringBuffer();
+      buf.append(targetName);
+      buf.append("-");
+      buf.append(i);
+      if(ext.length() > 0) {
+        buf.append(ext);
+      }
+      file = new File(dir, buf.toString());
+      i++;
+    }
+    logger.fine("new file: " + file.getName());
+    return file;
+  }
+  
+  private FileRef saveToFile(File targetFile, String contents) {
+    FileRef savedFile = null;
+    try {
+      targetFile.createNewFile();
+      FileWriter w = new FileWriter(targetFile);
+      w.write(contents);
+      w.flush();
+      w.close();
+      savedFile = new FileRef(
+              targetFile.getAbsolutePath(),
+              targetFile.isDirectory(),
+              targetFile.isHidden(),
+              targetFile.lastModified(),
+              targetFile.length());
+    } catch (IOException ex) {
+      logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
+    }
+    return savedFile;
+  }
+  
+  public FileRef saveTextFile(String relPath, String fileName, String contents) {
+    FileRef savedFile = null;
+    logger.fine(relPath + " " + fileName);
+    //FileRef datenRef = getBase();
+    Object p = getRequest().getUserPrincipal();
+    if(p instanceof Principal) {
+      File targetFile = new File(getTargetDir(relPath), fileName);
+      if(targetFile.exists()) {
+        /*
+          muss delete() sein?
+          pruefen: ueberschreibt der FileWriter den alteen Inhalt oder 
+          entsteht eine unerwuenschte Mischung aus altem und neuem 
+          Inhalt?
+        */
+        targetFile.delete();
+      } else {
+        targetFile.getParentFile().mkdirs();
+      }
+      saveToFile(targetFile, contents);
+    }
+    return savedFile;
+  }
+    
+  /* ---- Hilfsfunktionen ---- */
+  
+  private File getTargetDir(String relPath) {
+    logger.fine(relPath);
+    String targetPath = null;
+    if(relPath.startsWith(PUB_DIR_NAME)) {
+      targetPath = PUB_DIR_PATH + getUserName() + relPath.substring(PUB_DIR_NAME.length());
+    } else if(relPath.startsWith(HOME_DIR_NAME)) {
+      targetPath = HOME_DIR_PATH + getUserName() + relPath.substring(HOME_DIR_NAME.length());
+    } else {
+      // kann eigentlich nicht sein..
+    }
+    logger.fine(targetPath);
+    File targetDir = new File(getBase().getAbsolutePath(), targetPath);
+    return targetDir;
+  }
+  
+  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;
+  }    
+}
\ No newline at end of file

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