src/de/todesbaum/jsite/application/ProjectInserter.java

   1 /*
   2  * jSite - a tool for uploading websites into Freenet
   3  * Copyright (C) 2006 David Roden
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 package de.todesbaum.jsite.application;
  21
  22 import java.io.ByteArrayInputStream;
  23 import java.io.ByteArrayOutputStream;
  24 import java.io.File;
  25 import java.io.FileInputStream;
  26 import java.io.FileOutputStream;
  27 import java.io.IOException;
  28 import java.io.InputStream;
  29 import java.util.ArrayList;
  30 import java.util.HashMap;
  31 import java.util.List;
  32 import java.util.Map;
  33 import java.util.zip.ZipEntry;
  34 import java.util.zip.ZipOutputStream;
  35
  36 import de.todesbaum.jsite.gui.FileScanner;
  37 import de.todesbaum.jsite.gui.FileScannerListener;
  38 import de.todesbaum.util.freenet.fcp2.Client;
  39 import de.todesbaum.util.freenet.fcp2.ClientPutComplexDir;
  40 import de.todesbaum.util.freenet.fcp2.Connection;
  41 import de.todesbaum.util.freenet.fcp2.DirectFileEntry;
  42 import de.todesbaum.util.freenet.fcp2.FileEntry;
  43 import de.todesbaum.util.freenet.fcp2.Message;
  44 import de.todesbaum.util.freenet.fcp2.RedirectFileEntry;
  45 import de.todesbaum.util.freenet.fcp2.Verbosity;
  46 import de.todesbaum.util.io.Closer;
  47 import de.todesbaum.util.io.ReplacingOutputStream;
  48 import de.todesbaum.util.io.StreamCopier;
  49
  50 /**
  51  * @author David Roden &lt;droden@gmail.com&gt;
  52  * @version $Id$
  53  */
  54 public class ProjectInserter implements FileScannerListener, Runnable {
  55
  56         private static int counter = 0;
  57         private boolean debug = false;
  58         private List<InsertListener> insertListeners = new ArrayList<InsertListener>();
  59         protected Freenet7Interface freenetInterface;
  60         protected Project project;
  61         private FileScanner fileScanner;
  62         protected final Object lockObject = new Object();
  63
  64         public void addInsertListener(InsertListener insertListener) {
  65                 insertListeners.add(insertListener);
  66         }
  67
  68         public void removeInsertListener(InsertListener insertListener) {
  69                 insertListeners.remove(insertListener);
  70         }
  71
  72         protected void fireProjectInsertStarted() {
  73                 for (InsertListener insertListener: insertListeners) {
  74                         insertListener.projectInsertStarted(project);
  75                 }
  76         }
  77
  78         protected void fireProjectURIGenerated(String uri) {
  79                 for (InsertListener insertListener: insertListeners) {
  80                         insertListener.projectURIGenerated(project, uri);
  81                 }
  82         }
  83
  84         protected void fireProjectInsertProgress(int succeeded, int failed, int fatal, int total, boolean finalized) {
  85                 for (InsertListener insertListener: insertListeners) {
  86                         insertListener.projectInsertProgress(project, succeeded, failed, fatal, total, finalized);
  87                 }
  88         }
  89
  90         protected void fireProjectInsertFinished(boolean success, Throwable cause) {
  91                 for (InsertListener insertListener: insertListeners) {
  92                         insertListener.projectInsertFinished(project, success, cause);
  93                 }
  94         }
  95
  96         /**
  97          * @param debug
  98          *            The debug to set.
  99          */
 100         public void setDebug(boolean debug) {
 101                 this.debug = debug;
 102         }
 103
 104         /**
 105          * @param project
 106          *            The project to set.
 107          */
 108         public void setProject(Project project) {
 109                 this.project = project;
 110         }
 111
 112         /**
 113          * @param freenetInterface
 114          *            The freenetInterface to set.
 115          */
 116         public void setFreenetInterface(Freenet7Interface freenetInterface) {
 117                 this.freenetInterface = freenetInterface;
 118         }
 119
 120         public void start() {
 121                 fileScanner = new FileScanner(project);
 122                 fileScanner.addFileScannerListener(this);
 123                 new Thread(fileScanner).start();
 124         }
 125
 126         private InputStream createFileInputStream(String filename, FileOption fileOption, int edition, long[] length) throws IOException {
 127                 File file = new File(project.getLocalPath(), filename);
 128                 length[0] = file.length();
 129                 if (!fileOption.getReplaceEdition()) {
 130                         return new FileInputStream(file);
 131                 }
 132                 ByteArrayOutputStream filteredByteOutputStream = new ByteArrayOutputStream(Math.min(Integer.MAX_VALUE, (int) length[0]));
 133                 ReplacingOutputStream outputStream = new ReplacingOutputStream(filteredByteOutputStream);
 134                 FileInputStream fileInput = new FileInputStream(file);
 135                 try {
 136                         outputStream.addReplacement("$[EDITION]", String.valueOf(edition));
 137                         outputStream.addReplacement("$[URI]", project.getFinalRequestURI(0));
 138                         for (int index = 1; index <= fileOption.getEditionRange(); index++) {
 139                                 outputStream.addReplacement("$[URI+" + index + "]", project.getFinalRequestURI(index));
 140                                 outputStream.addReplacement("$[EDITION+" + index + "]", String.valueOf(edition + index));
 141                         }
 142                         StreamCopier.copy(fileInput, outputStream, length[0]);
 143                 } finally {
 144                         Closer.close(fileInput);
 145                         Closer.close(outputStream);
 146                         Closer.close(filteredByteOutputStream);
 147                 }
 148                 byte[] filteredBytes = filteredByteOutputStream.toByteArray();
 149                 length[0] = filteredBytes.length;
 150                 return new ByteArrayInputStream(filteredBytes);
 151         }
 152
 153         private InputStream createContainerInputStream(Map<String, List<String>> containerFiles, String containerName, int edition, long[] containerLength) throws IOException {
 154                 File tempFile = File.createTempFile("jsite", ".zip");
 155                 tempFile.deleteOnExit();
 156                 FileOutputStream fileOutputStream = new FileOutputStream(tempFile);
 157                 ZipOutputStream zipOutputStream = new ZipOutputStream(fileOutputStream);
 158                 try {
 159                         for (String filename: containerFiles.get(containerName)) {
 160                                 File dataFile = new File(project.getLocalPath(), filename);
 161                                 if (dataFile.exists()) {
 162                                         ZipEntry zipEntry = new ZipEntry(filename);
 163                                         long[] fileLength = new long[1];
 164                                         InputStream wrappedInputStream = createFileInputStream(filename, project.getFileOption(filename), edition, fileLength);
 165                                         try {
 166                                                 zipOutputStream.putNextEntry(zipEntry);
 167                                                 StreamCopier.copy(wrappedInputStream, zipOutputStream, fileLength[0]);
 168                                         } finally {
 169                                                 zipOutputStream.closeEntry();
 170                                                 wrappedInputStream.close();
 171                                         }
 172                                 }
 173                         }
 174                 } finally {
 175                         zipOutputStream.closeEntry();
 176                         Closer.close(zipOutputStream);
 177                         Closer.close(fileOutputStream);
 178                 }
 179
 180                 containerLength[0] = tempFile.length();
 181                 return new FileInputStream(tempFile);
 182         }
 183
 184         private FileEntry createFileEntry(String filename, int edition, Map<String, List<String>> containerFiles) {
 185                 FileEntry fileEntry = null;
 186                 FileOption fileOption = project.getFileOption(filename);
 187                 if (filename.startsWith("/container/:")) {
 188                         String containerName = filename.substring("/container/:".length());
 189                         try {
 190                                 long[] containerLength = new long[1];
 191                                 InputStream containerInputStream = createContainerInputStream(containerFiles, containerName, edition, containerLength);
 192                                 fileEntry = new DirectFileEntry(containerName + ".zip", "application/zip", containerInputStream, containerLength[0]);
 193                         } catch (IOException ioe1) {
 194                         }
 195                 } else {
 196                         if (fileOption.isInsert()) {
 197                                 try {
 198                                         long[] fileLength = new long[1];
 199                                         InputStream fileEntryInputStream = createFileInputStream(filename, fileOption, edition, fileLength);
 200                                         fileEntry = new DirectFileEntry(filename, project.getFileOption(filename).getMimeType(), fileEntryInputStream, fileLength[0]);
 201                                 } catch (IOException ioe1) {
 202                                 }
 203                         } else {
 204                                 fileEntry = new RedirectFileEntry(filename, fileOption.getMimeType(), fileOption.getCustomKey());
 205                         }
 206                 }
 207                 return fileEntry;
 208         }
 209
 210         private void createContainers(List<String> files, List<String> containers, Map<String, List<String>> containerFiles) {
 211                 for (String filename: new ArrayList<String>(files)) {
 212                         FileOption fileOption = project.getFileOption(filename);
 213                         String containerName = fileOption.getContainer();
 214                         if (!containerName.equals("")) {
 215                                 if (!containers.contains(containerName)) {
 216                                         containers.add(containerName);
 217                                         containerFiles.put(containerName, new ArrayList<String>());
 218                                         /* hmm. looks like a hack to me. */
 219                                         files.add("/container/:" + containerName);
 220                                 }
 221                                 containerFiles.get(containerName).add(filename);
 222                                 files.remove(filename);
 223                         }
 224                 }
 225         }
 226
 227         /**
 228          * {@inheritDoc}
 229          */
 230         public void run() {
 231                 fireProjectInsertStarted();
 232                 List<String> files = fileScanner.getFiles();
 233
 234                 /* create connection to node */
 235                 Connection connection = freenetInterface.getConnection("project-insert-" + counter++);
 236                 boolean connected = false;
 237                 Throwable cause = null;
 238                 try {
 239                         connected = connection.connect();
 240                 } catch (IOException e1) {
 241                         cause = e1;
 242                 }
 243
 244                 if (!connected) {
 245                         fireProjectInsertFinished(false, cause);
 246                         return;
 247                 }
 248
 249                 Client client = new Client(connection);
 250
 251                 /* create containers */
 252                 final List<String> containers = new ArrayList<String>();
 253                 final Map<String, List<String>> containerFiles = new HashMap<String, List<String>>();
 254                 createContainers(files, containers, containerFiles);
 255
 256                 /* collect files */
 257                 int edition = project.getEdition();
 258                 String dirURI = "freenet:USK@" + project.getInsertURI() + "/" + project.getPath() + "/" + edition + "/";
 259                 ClientPutComplexDir putDir = new ClientPutComplexDir("dir-" + counter++, dirURI);
 260                 putDir.setDefaultName(project.getIndexFile());
 261                 putDir.setVerbosity(Verbosity.ALL);
 262                 putDir.setMaxRetries(-1);
 263                 for (String filename: files) {
 264                         FileEntry fileEntry = createFileEntry(filename, edition, containerFiles);
 265                         if (fileEntry != null) {
 266                                 putDir.addFileEntry(fileEntry);
 267                         }
 268                 }
 269
 270                 /* start request */
 271                 try {
 272                         client.execute(putDir);
 273                 } catch (IOException ioe1) {
 274                         fireProjectInsertFinished(false, ioe1);
 275                         return;
 276                 }
 277
 278                 /* parse progress and success messages */
 279                 String finalURI = null;
 280                 boolean success = false;
 281                 boolean finished = false;
 282                 boolean disconnected = false;
 283                 while (!finished) {
 284                         Message message = client.readMessage();
 285                         finished = (message == null) || (disconnected = client.isDisconnected());
 286                         if (debug) {
 287                                 System.out.println(message);
 288                         }
 289                         if (!finished) {
 290                                 String messageName = message.getName();
 291                                 if ("URIGenerated".equals(messageName)) {
 292                                         finalURI = message.get("URI");
 293                                         fireProjectURIGenerated(finalURI);
 294                                 }
 295                                 if ("SimpleProgress".equals(messageName)) {
 296                                         int total = Integer.parseInt(message.get("Total"));
 297                                         int succeeded = Integer.parseInt(message.get("Succeeded"));
 298                                         int fatal = Integer.parseInt(message.get("FatallyFailed"));
 299                                         int failed = Integer.parseInt(message.get("Failed"));
 300                                         boolean finalized = Boolean.parseBoolean(message.get("FinalizedTotal"));
 301                                         fireProjectInsertProgress(succeeded, failed, fatal, total, finalized);
 302                                 }
 303                                 success = "PutSuccessful".equals(messageName);
 304                                 finished = success || "PutFailed".equals(messageName) || messageName.endsWith("Error");
 305                         }
 306                 }
 307
 308                 /* post-insert work */
 309                 fireProjectInsertFinished(success, disconnected ? new IOException("Connection terminated") : null);
 310                 if (success) {
 311                         String editionPart = finalURI.substring(finalURI.lastIndexOf('/') + 1);
 312                         int newEdition = Integer.parseInt(editionPart);
 313                         project.setEdition(newEdition);
 314                 }
 315         }
 316
 317         //
 318         // INTERFACE FileScannerListener
 319         //
 320
 321         /**
 322          * {@inheritDoc}
 323          */
 324         public void fileScannerFinished(FileScanner fileScanner) {
 325                 if (!fileScanner.isError()) {
 326                         new Thread(this).start();
 327                 } else {
 328                         fireProjectInsertFinished(false, null);
 329                 }
 330                 fileScanner.removeFileScannerListener(this);
 331         }
 332
 333 }