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.ReplacingOutputStream;
  47 import de.todesbaum.util.io.StreamCopier;
  48
  49 /**
  50  * @author David Roden &lt;droden@gmail.com&gt;
  51  * @version $Id$
  52  */
  53 public class ProjectInserter implements FileScannerListener, Runnable {
  54
  55         private static int counter = 0;
  56         private boolean debug = false;
  57         private List<InsertListener> insertListeners = new ArrayList<InsertListener>();
  58         protected Freenet7Interface freenetInterface;
  59         protected Project project;
  60         private FileScanner fileScanner;
  61         protected final Object lockObject = new Object();
  62         private int maxRetries = 99999;
  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         /**
 121          * @param maxRetries
 122          *            The maxRetries to set.
 123          */
 124         public void setMaxRetries(int maxRetries) {
 125                 this.maxRetries = maxRetries;
 126         }
 127
 128         public void start() {
 129                 fileScanner = new FileScanner(project);
 130                 fileScanner.addFileScannerListener(this);
 131                 new Thread(fileScanner).start();
 132         }
 133
 134         private InputStream createFileInputStream(String filename, FileOption fileOption, int edition, long[] length) throws IOException {
 135                 File file = new File(project.getLocalPath(), filename);
 136                 length[0] = file.length();
 137                 if (!fileOption.getReplaceEdition()) {
 138                         return new FileInputStream(file);
 139                 }
 140                 ByteArrayOutputStream filteredByteOutputStream = new ByteArrayOutputStream(Math.min(Integer.MAX_VALUE, (int) length[0]));
 141                 ReplacingOutputStream outputStream = new ReplacingOutputStream(filteredByteOutputStream);
 142                 FileInputStream fileInput = new FileInputStream(file);
 143                 outputStream.addReplacement("$[EDITION]", String.valueOf(edition));
 144                 outputStream.addReplacement("$[URI]", project.getFinalRequestURI(0));
 145                 for (int index = 1; index <= fileOption.getEditionRange(); index++) {
 146                         outputStream.addReplacement("$[URI+" + index + "]", project.getFinalRequestURI(index));
 147                         outputStream.addReplacement("$[EDITION+" + index + "]", String.valueOf(edition + index));
 148                 }
 149                 StreamCopier.copy(fileInput, outputStream, length[0]);
 150                 outputStream.close();
 151                 filteredByteOutputStream.close();
 152                 byte[] filteredBytes = filteredByteOutputStream.toByteArray();
 153                 length[0] = filteredBytes.length;
 154                 return new ByteArrayInputStream(filteredBytes);
 155         }
 156
 157         private InputStream createContainerInputStream(Map<String, List<String>> containerFiles, String containerName, int edition, long[] containerLength) throws IOException {
 158                 File tempFile = File.createTempFile("jsite", ".zip");
 159                 tempFile.deleteOnExit();
 160                 FileOutputStream fileOutputStream = new FileOutputStream(tempFile);
 161                 ZipOutputStream zipOutputStream = new ZipOutputStream(fileOutputStream);
 162                 for (String filename: containerFiles.get(containerName)) {
 163                         File dataFile = new File(project.getLocalPath(), filename);
 164                         if (dataFile.exists()) {
 165                                 ZipEntry zipEntry = new ZipEntry(filename);
 166                                 long[] fileLength = new long[1];
 167                                 InputStream wrappedInputStream = createFileInputStream(filename, project.getFileOption(filename), edition, fileLength);
 168                                 zipOutputStream.putNextEntry(zipEntry);
 169                                 StreamCopier.copy(wrappedInputStream, zipOutputStream, fileLength[0]);
 170                                 zipOutputStream.closeEntry();
 171                                 wrappedInputStream.close();
 172                         }
 173                 }
 174                 zipOutputStream.closeEntry();
 175
 176                 /* FIXME - create metadata */
 177                 // ZipEntry metadataEntry = new ZipEntry("metadata");
 178                 // zipOutputStream.putNextEntry(metadataEntry);
 179                 // Metadata zipMetadata = new Metadata();
 180                 // for (String filename: containerFiles.get(containerName)) {
 181                 // if (new File(project.getLocalPath(), filename).exists()) {
 182                 // DocumentMetadata zipEntryMetadata = new DocumentMetadata();
 183                 // zipEntryMetadata.setName(filename);
 184                 // zipEntryMetadata.setFormat(project.getFileOption(filename).getMimeType());
 185                 // zipMetadata.addDocument(zipEntryMetadata);
 186                 // }
 187                 // }
 188                 // zipOutputStream.write(zipMetadata.toByteArray());
 189                 // zipOutputStream.closeEntry();
 190                 zipOutputStream.close();
 191
 192                 containerLength[0] = tempFile.length();
 193                 return new FileInputStream(tempFile);
 194         }
 195
 196         private FileEntry createFileEntry(String filename, int edition, Map<String, List<String>> containerFiles) {
 197                 FileEntry fileEntry = null;
 198                 FileOption fileOption = project.getFileOption(filename);
 199                 if (filename.startsWith("/container/:")) {
 200                         String containerName = filename.substring("/container/:".length());
 201                         try {
 202                                 long[] containerLength = new long[1];
 203                                 InputStream containerInputStream = createContainerInputStream(containerFiles, containerName, edition, containerLength);
 204                                 fileEntry = new DirectFileEntry(containerName + ".zip", "application/zip", containerInputStream, containerLength[0]);
 205                         } catch (IOException ioe1) {
 206                         }
 207                 } else {
 208                         if (fileOption.isInsert()) {
 209                                 try {
 210                                         long[] fileLength = new long[1];
 211                                         InputStream fileEntryInputStream = createFileInputStream(filename, fileOption, edition, fileLength);
 212                                         fileEntry = new DirectFileEntry(filename, project.getFileOption(filename).getMimeType(), fileEntryInputStream, fileLength[0]);
 213                                 } catch (IOException ioe1) {
 214                                 }
 215                         } else {
 216                                 fileEntry = new RedirectFileEntry(filename, fileOption.getMimeType(), fileOption.getCustomKey());
 217                         }
 218                 }
 219                 return fileEntry;
 220         }
 221
 222         private void createContainers(List<String> files, List<String> containers, Map<String, List<String>> containerFiles) {
 223                 for (String filename: new ArrayList<String>(files)) {
 224                         FileOption fileOption = project.getFileOption(filename);
 225                         String containerName = fileOption.getContainer();
 226                         if (!containerName.equals("")) {
 227                                 if (!containers.contains(containerName)) {
 228                                         containers.add(containerName);
 229                                         containerFiles.put(containerName, new ArrayList<String>());
 230                                         /* hmm. looks like a hack to me. */
 231                                         files.add("/container/:" + containerName);
 232                                 }
 233                                 containerFiles.get(containerName).add(filename);
 234                                 files.remove(filename);
 235                         }
 236                 }
 237         }
 238
 239         /**
 240          * {@inheritDoc}
 241          */
 242         public void run() {
 243                 fireProjectInsertStarted();
 244                 List<String> files = fileScanner.getFiles();
 245
 246                 /* create connection to node */
 247                 Connection connection = freenetInterface.getConnection("project-insert-" + counter++);
 248                 boolean connected = false;
 249                 Throwable cause = null;
 250                 try {
 251                         connected = connection.connect();
 252                 } catch (IOException e1) {
 253                         cause = e1;
 254                 }
 255
 256                 if (!connected) {
 257                         fireProjectInsertFinished(false, cause);
 258                         return;
 259                 }
 260
 261                 Client client = new Client(connection);
 262
 263                 /* create containers */
 264                 final List<String> containers = new ArrayList<String>();
 265                 final Map<String, List<String>> containerFiles = new HashMap<String, List<String>>();
 266                 createContainers(files, containers, containerFiles);
 267
 268                 /* collect files */
 269                 int edition = ((EditionProject) project).getEdition();
 270                 String dirURI = "freenet:USK@" + project.getInsertURI() + "/" + project.getPath() + "/" + edition + "/";
 271                 ClientPutComplexDir putDir = new ClientPutComplexDir("dir-" + counter++, dirURI);
 272                 putDir.setDefaultName(project.getIndexFile());
 273                 putDir.setVerbosity(Verbosity.ALL);
 274                 putDir.setMaxRetries(maxRetries);
 275                 for (String filename: files) {
 276                         FileEntry fileEntry = createFileEntry(filename, edition, containerFiles);
 277                         if (fileEntry != null) {
 278                                 putDir.addFileEntry(fileEntry);
 279                         }
 280                 }
 281
 282                 /* start request */
 283                 try {
 284                         client.execute(putDir);
 285                 } catch (IOException ioe1) {
 286                         fireProjectInsertFinished(false, ioe1);
 287                         return;
 288                 }
 289
 290                 /* parse progress and success messages */
 291                 boolean success = false;
 292                 boolean finished = false;
 293                 boolean disconnected = false;
 294                 while (!finished) {
 295                         Message message = client.readMessage();
 296                         finished = (message == null) || (disconnected = client.isDisconnected());
 297                         if (debug) {
 298                                 System.out.println(message);
 299                         }
 300                         if (!finished) {
 301                                 String messageName = message.getName();
 302                                 if ("URIGenerated".equals(messageName)) {
 303                                         fireProjectURIGenerated(message.get("URI"));
 304                                 }
 305                                 if ("SimpleProgress".equals(messageName)) {
 306                                         int total = Integer.parseInt(message.get("Total"));
 307                                         int succeeded = Integer.parseInt(message.get("Succeeded"));
 308                                         int fatal = Integer.parseInt(message.get("FatallyFailed"));
 309                                         int failed = Integer.parseInt(message.get("Failed"));
 310                                         boolean finalized = Boolean.parseBoolean(message.get("FinalizedTotal"));
 311                                         fireProjectInsertProgress(succeeded, failed, fatal, total, finalized);
 312                                 }
 313                                 success = "PutSuccessful".equals(messageName);
 314                                 finished = success || "PutFailed".equals(messageName);
 315                         }
 316                 }
 317
 318                 /* post-insert work */
 319                 fireProjectInsertFinished(success, disconnected ? new IOException("Connection terminated") : null);
 320                 if (success) {
 321                         if (project instanceof EditionProject) {
 322                                 ((EditionProject) project).setEdition(edition + 1);
 323                         }
 324                 }
 325         }
 326
 327         //
 328         // INTERFACE FileScannerListener
 329         //
 330
 331         /**
 332          * {@inheritDoc}
 333          */
 334         public void fileScannerFinished(FileScanner fileScanner) {
 335                 if (!fileScanner.isError()) {
 336                         new Thread(this).start();
 337                 } else {
 338                         fireProjectInsertFinished(false, null);
 339                 }
 340                 fileScanner.removeFileScannerListener(this);
 341         }
 342
 343 }