/*
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Dateiverwaltung - File management in your browser
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Copyright (C) 2017 Ulrich Hilger, http://uhilger.de
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as
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published by the Free Software Foundation, either version 3 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package de.uhilger.filecms.api;
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import de.uhilger.filecms.web.Initialiser;
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import de.uhilger.filesystem.FileRef;
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import de.uhilger.filesystem.LocalFileSystem;
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import java.io.File;
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import java.io.FileNotFoundException;
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import java.io.FileReader;
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import java.io.FileWriter;
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import java.io.IOException;
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import java.io.StringReader;
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import java.security.Principal;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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/**
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*
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* @author ulrich
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*/
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public class FileMgr extends Api {
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private static final Logger logger = Logger.getLogger(FileMgr.class.getName());
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public static final String PUB_DIR_PATH = "www/";
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public static final String HOME_DIR_PATH = "home/";
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public static final String PUB_DIR_NAME = "Oeffentlich";
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public static final String HOME_DIR_NAME = "Persoenlicher Ordner";
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public String hallo() {
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return "Hallo Welt!";
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}
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public List<FileRef> list(String relPath) {
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List<FileRef> files = new ArrayList();
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if(relPath.length() == 0) {
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FileRef namedPublicFolder = new FileRef(PUB_DIR_NAME, true);
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logger.finer(namedPublicFolder.getAbsolutePath());
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FileRef namedHomeFolder = new FileRef(HOME_DIR_NAME, true);
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logger.finer(namedHomeFolder.getAbsolutePath());
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files = new ArrayList();
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files.add(namedHomeFolder);
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files.add(namedPublicFolder);
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} else {
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String path = getTargetDir(relPath).getAbsolutePath();
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logger.fine(path);
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LocalFileSystem fs = new LocalFileSystem();
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FileRef[] fileRefs = fs.list(new FileRef(getTargetDir(relPath).getAbsolutePath(), true));
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for(int i = 0; i < fileRefs.length; i++) {
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files.add(fileRefs[i]);
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logger.finer("added " + fileRefs[i].getAbsolutePath());
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}
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}
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return files;
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}
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public FileRef newFolder(String relPath, String folderName) {
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logger.finer(relPath);
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String targetPath = null;
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if(relPath.startsWith(PUB_DIR_NAME)) {
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targetPath = PUB_DIR_PATH + getUserName() + "/" + relPath.substring(PUB_DIR_NAME.length()) + "/" + folderName;
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} else if(relPath.startsWith(HOME_DIR_NAME)) {
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targetPath = HOME_DIR_PATH + getUserName() + "/" + relPath.substring(HOME_DIR_NAME.length()) + "/" + folderName;
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} else {
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// kann eigentlich nicht sein..
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}
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logger.finer(targetPath);
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File targetDir = new File(getBase().getAbsolutePath(), targetPath);
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targetDir.mkdirs();
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return new FileRef(targetDir.getAbsolutePath(), true);
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}
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public String getCode(String relPath, String fileName) {
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String code = null;
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Object p = getRequest().getUserPrincipal();
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if(p instanceof Principal) {
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FileReader reader = null;
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try {
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File targetFile = new File(getTargetDir(relPath), fileName);
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reader = new FileReader(targetFile);
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StringBuffer buf = new StringBuffer();
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char[] readBuffer = new char[1024];
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int charsRead = reader.read(readBuffer);
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while(charsRead > -1) {
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buf.append(readBuffer, 0, charsRead);
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charsRead = reader.read(readBuffer);
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}
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code = buf.toString();
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} catch (FileNotFoundException ex) {
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Logger.getLogger(FileMgr.class.getName()).log(Level.SEVERE, null, ex);
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} catch (IOException ex) {
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Logger.getLogger(FileMgr.class.getName()).log(Level.SEVERE, null, ex);
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} finally {
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try {
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reader.close();
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} catch (IOException ex) {
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Logger.getLogger(FileMgr.class.getName()).log(Level.SEVERE, null, ex);
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}
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}
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}
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return code;
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}
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public FileRef saveTextFile(String relPath, String fileName, String contents) {
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FileRef savedFile = null;
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try {
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FileRef datenRef = getBase();
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//File daten = new File(datenRef.getAbsolutePath());
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Object p = getRequest().getUserPrincipal();
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if(p instanceof Principal) {
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File targetFile = new File(getTargetDir(relPath), fileName);
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if(targetFile.exists()) {
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/*
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muss delete() sein?
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pruefen: ueberschreibt der FileWriter den alteen Inhalt oder
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entsteht eine unerwuenschte Mischung aus altem und neuem
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Inhalt?
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*/
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targetFile.delete();
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} else {
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targetFile.getParentFile().mkdirs();
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}
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targetFile.createNewFile();
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FileWriter w = new FileWriter(targetFile);
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w.write(contents);
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w.flush();
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w.close();
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savedFile = new FileRef(
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targetFile.getAbsolutePath(),
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targetFile.isDirectory(),
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targetFile.isHidden(),
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targetFile.lastModified(),
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targetFile.length());
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}
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} catch (IOException ex) {
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logger.log(Level.SEVERE, null, ex);
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}
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return savedFile;
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}
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/* ---- Hilfsfunktionen ---- */
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private File getTargetDir(String relPath) {
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logger.finer(relPath);
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String targetPath = null;
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if(relPath.startsWith(PUB_DIR_NAME)) {
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targetPath = PUB_DIR_PATH + getUserName() + "/" + relPath.substring(PUB_DIR_NAME.length());
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} else if(relPath.startsWith(HOME_DIR_NAME)) {
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targetPath = HOME_DIR_PATH + getUserName() + "/" + relPath.substring(HOME_DIR_NAME.length());
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} else {
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// kann eigentlich nicht sein..
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}
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logger.finer(targetPath);
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File targetDir = new File(getBase().getAbsolutePath(), targetPath);
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return targetDir;
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}
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private FileRef getBase() {
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FileRef base = null;
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Object o = getServletContext().getAttribute(Initialiser.FILE_BASE);
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if(o instanceof FileRef) {
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base = (FileRef) o;
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}
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return base;
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}
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private String getUserName() {
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String userName = null;
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Object p = getRequest().getUserPrincipal();
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if(p instanceof Principal) {
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userName = ((Principal) p).getName();
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}
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return userName;
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}
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/*
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private File getWebappsDir() {
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File cfile = new File(this.getClass().getResource(
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this.getClass().getSimpleName() + ".class").getFile());
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String path = cfile.getAbsolutePath();
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return new File(path.substring(0, path.indexOf(getRequest().getContextPath())));
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}
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*/
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}
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