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
  63         public void addInsertListener(InsertListener insertListener) {
  64                 insertListeners.add(insertListener);
  65         }
  66
  67         public void removeInsertListener(InsertListener insertListener) {
  68                 insertListeners.remove(insertListener);
  69         }
  70
  71         protected void fireProjectInsertStarted() {
  72                 for (InsertListener insertListener: insertListeners) {
  73                         insertListener.projectInsertStarted(project);
  74                 }
  75         }
  76
  77         protected void fireProjectURIGenerated(String uri) {
  78                 for (InsertListener insertListener: insertListeners) {
  79                         insertListener.projectURIGenerated(project, uri);
  80                 }
  81         }
  82
  83         protected void fireProjectInsertProgress(int succeeded, int failed, int fatal, int total, boolean finalized) {
  84                 for (InsertListener insertListener: insertListeners) {
  85                         insertListener.projectInsertProgress(project, succeeded, failed, fatal, total, finalized);
  86                 }
  87         }
  88
  89         protected void fireProjectInsertFinished(boolean success, Throwable cause) {
  90                 for (InsertListener insertListener: insertListeners) {
  91                         insertListener.projectInsertFinished(project, success, cause);
  92                 }
  93         }
  94
  95         /**
  96          * @param debug
  97          *            The debug to set.
  98          */
  99         public void setDebug(boolean debug) {
 100                 this.debug = debug;
 101         }
 102
 103         /**
 104          * @param project
 105          *            The project to set.
 106          */
 107         public void setProject(Project project) {
 108                 this.project = project;
 109         }
 110
 111         /**
 112          * @param freenetInterface
 113          *            The freenetInterface to set.
 114          */
 115         public void setFreenetInterface(Freenet7Interface freenetInterface) {
 116                 this.freenetInterface = freenetInterface;
 117         }
 118
 119         public void start() {
 120                 fileScanner = new FileScanner(project);
 121                 fileScanner.addFileScannerListener(this);
 122                 new Thread(fileScanner).start();
 123         }
 124
 125         private InputStream createFileInputStream(String filename, FileOption fileOption, int edition, long[] length) throws IOException {
 126                 File file = new File(project.getLocalPath(), filename);
 127                 length[0] = file.length();
 128                 if (!fileOption.getReplaceEdition()) {
 129                         return new FileInputStream(file);
 130                 }
 131                 ByteArrayOutputStream filteredByteOutputStream = new ByteArrayOutputStream(Math.min(Integer.MAX_VALUE, (int) length[0]));
 132                 ReplacingOutputStream outputStream = new ReplacingOutputStream(filteredByteOutputStream);
 133                 FileInputStream fileInput = new FileInputStream(file);
 134                 outputStream.addReplacement("$[EDITION]", String.valueOf(edition));
 135                 outputStream.addReplacement("$[URI]", project.getFinalRequestURI(0));
 136                 for (int index = 1; index <= fileOption.getEditionRange(); index++) {
 137                         outputStream.addReplacement("$[URI+" + index + "]", project.getFinalRequestURI(index));
 138                         outputStream.addReplacement("$[EDITION+" + index + "]", String.valueOf(edition + index));
 139                 }
 140                 StreamCopier.copy(fileInput, outputStream, length[0]);
 141                 outputStream.close();
 142                 filteredByteOutputStream.close();
 143                 byte[] filteredBytes = filteredByteOutputStream.toByteArray();
 144                 length[0] = filteredBytes.length;
 145                 return new ByteArrayInputStream(filteredBytes);
 146         }
 147
 148         private InputStream createContainerInputStream(Map<String, List<String>> containerFiles, String containerName, int edition, long[] containerLength) throws IOException {
 149                 File tempFile = File.createTempFile("jsite", ".zip");
 150                 tempFile.deleteOnExit();
 151                 FileOutputStream fileOutputStream = new FileOutputStream(tempFile);
 152                 ZipOutputStream zipOutputStream = new ZipOutputStream(fileOutputStream);
 153                 for (String filename: containerFiles.get(containerName)) {
 154                         File dataFile = new File(project.getLocalPath(), filename);
 155                         if (dataFile.exists()) {
 156                                 ZipEntry zipEntry = new ZipEntry(filename);
 157                                 long[] fileLength = new long[1];
 158                                 InputStream wrappedInputStream = createFileInputStream(filename, project.getFileOption(filename), edition, fileLength);
 159                                 zipOutputStream.putNextEntry(zipEntry);
 160                                 StreamCopier.copy(wrappedInputStream, zipOutputStream, fileLength[0]);
 161                                 zipOutputStream.closeEntry();
 162                                 wrappedInputStream.close();
 163                         }
 164                 }
 165                 zipOutputStream.closeEntry();
 166
 167                 /* FIXME - create metadata */
 168                 // ZipEntry metadataEntry = new ZipEntry("metadata");
 169                 // zipOutputStream.putNextEntry(metadataEntry);
 170                 // Metadata zipMetadata = new Metadata();
 171                 // for (String filename: containerFiles.get(containerName)) {
 172                 // if (new File(project.getLocalPath(), filename).exists()) {
 173                 // DocumentMetadata zipEntryMetadata = new DocumentMetadata();
 174                 // zipEntryMetadata.setName(filename);
 175                 // zipEntryMetadata.setFormat(project.getFileOption(filename).getMimeType());
 176                 // zipMetadata.addDocument(zipEntryMetadata);
 177                 // }
 178                 // }
 179                 // zipOutputStream.write(zipMetadata.toByteArray());
 180                 // zipOutputStream.closeEntry();
 181                 zipOutputStream.close();
 182
 183                 containerLength[0] = tempFile.length();
 184                 return new FileInputStream(tempFile);
 185         }
 186
 187         private FileEntry createFileEntry(String filename, int edition, Map<String, List<String>> containerFiles) {
 188                 FileEntry fileEntry = null;
 189                 FileOption fileOption = project.getFileOption(filename);
 190                 if (filename.startsWith("/container/:")) {
 191                         String containerName = filename.substring("/container/:".length());
 192                         try {
 193                                 long[] containerLength = new long[1];
 194                                 InputStream containerInputStream = createContainerInputStream(containerFiles, containerName, edition, containerLength);
 195                                 fileEntry = new DirectFileEntry(containerName + ".zip", "application/zip", containerInputStream, containerLength[0]);
 196                         } catch (IOException ioe1) {
 197                         }
 198                 } else {
 199                         if (fileOption.isInsert()) {
 200                                 try {
 201                                         long[] fileLength = new long[1];
 202                                         InputStream fileEntryInputStream = createFileInputStream(filename, fileOption, edition, fileLength);
 203                                         fileEntry = new DirectFileEntry(filename, project.getFileOption(filename).getMimeType(), fileEntryInputStream, fileLength[0]);
 204                                 } catch (IOException ioe1) {
 205                                 }
 206                         } else {
 207                                 fileEntry = new RedirectFileEntry(filename, fileOption.getMimeType(), fileOption.getCustomKey());
 208                         }
 209                 }
 210                 return fileEntry;
 211         }
 212
 213         private void createContainers(List<String> files, List<String> containers, Map<String, List<String>> containerFiles) {
 214                 for (String filename: new ArrayList<String>(files)) {
 215                         FileOption fileOption = project.getFileOption(filename);
 216                         String containerName = fileOption.getContainer();
 217                         if (!containerName.equals("")) {
 218                                 if (!containers.contains(containerName)) {
 219                                         containers.add(containerName);
 220                                         containerFiles.put(containerName, new ArrayList<String>());
 221                                         /* hmm. looks like a hack to me. */
 222                                         files.add("/container/:" + containerName);
 223                                 }
 224                                 containerFiles.get(containerName).add(filename);
 225                                 files.remove(filename);
 226                         }
 227                 }
 228         }
 229
 230         /**
 231          * {@inheritDoc}
 232          */
 233         public void run() {
 234                 fireProjectInsertStarted();
 235                 List<String> files = fileScanner.getFiles();
 236
 237                 /* create connection to node */
 238                 Connection connection = freenetInterface.getConnection("project-insert-" + counter++);
 239                 boolean connected = false;
 240                 Throwable cause = null;
 241                 try {
 242                         connected = connection.connect();
 243                 } catch (IOException e1) {
 244                         cause = e1;
 245                 }
 246
 247                 if (!connected) {
 248                         fireProjectInsertFinished(false, cause);
 249                         return;
 250                 }
 251
 252                 Client client = new Client(connection);
 253
 254                 /* create containers */
 255                 final List<String> containers = new ArrayList<String>();
 256                 final Map<String, List<String>> containerFiles = new HashMap<String, List<String>>();
 257                 createContainers(files, containers, containerFiles);
 258
 259                 /* collect files */
 260                 int edition = project.getEdition();
 261                 String dirURI = "freenet:USK@" + project.getInsertURI() + "/" + project.getPath() + "/" + edition + "/";
 262                 ClientPutComplexDir putDir = new ClientPutComplexDir("dir-" + counter++, dirURI);
 263                 putDir.setDefaultName(project.getIndexFile());
 264                 putDir.setVerbosity(Verbosity.ALL);
 265                 putDir.setMaxRetries(-1);
 266                 for (String filename: files) {
 267                         FileEntry fileEntry = createFileEntry(filename, edition, containerFiles);
 268                         if (fileEntry != null) {
 269                                 putDir.addFileEntry(fileEntry);
 270                         }
 271                 }
 272
 273                 /* start request */
 274                 try {
 275                         client.execute(putDir);
 276                 } catch (IOException ioe1) {
 277                         fireProjectInsertFinished(false, ioe1);
 278                         return;
 279                 }
 280
 281                 /* parse progress and success messages */
 282                 String finalURI = null;
 283                 boolean success = false;
 284                 boolean finished = false;
 285                 boolean disconnected = false;
 286                 while (!finished) {
 287                         Message message = client.readMessage();
 288                         finished = (message == null) || (disconnected = client.isDisconnected());
 289                         if (debug) {
 290                                 System.out.println(message);
 291                         }
 292                         if (!finished) {
 293                                 String messageName = message.getName();
 294                                 if ("URIGenerated".equals(messageName)) {
 295                                         finalURI = message.get("URI");
 296                                         fireProjectURIGenerated(finalURI);
 297                                 }
 298                                 if ("SimpleProgress".equals(messageName)) {
 299                                         int total = Integer.parseInt(message.get("Total"));
 300                                         int succeeded = Integer.parseInt(message.get("Succeeded"));
 301                                         int fatal = Integer.parseInt(message.get("FatallyFailed"));
 302                                         int failed = Integer.parseInt(message.get("Failed"));
 303                                         boolean finalized = Boolean.parseBoolean(message.get("FinalizedTotal"));
 304                                         fireProjectInsertProgress(succeeded, failed, fatal, total, finalized);
 305                                 }
 306                                 success = "PutSuccessful".equals(messageName);
 307                                 finished = success || "PutFailed".equals(messageName);
 308                         }
 309                 }
 310
 311                 /* post-insert work */
 312                 fireProjectInsertFinished(success, disconnected ? new IOException("Connection terminated") : null);
 313                 if (success) {
 314                         String editionPart = finalURI.substring(finalURI.lastIndexOf('/') + 1);
 315                         int newEdition = Integer.parseInt(editionPart);
 316                         project.setEdition(newEdition);
 317                 }
 318         }
 319
 320         //
 321         // INTERFACE FileScannerListener
 322         //
 323
 324         /**
 325          * {@inheritDoc}
 326          */
 327         public void fileScannerFinished(FileScanner fileScanner) {
 328                 if (!fileScanner.isError()) {
 329                         new Thread(this).start();
 330                 } else {
 331                         fireProjectInsertFinished(false, null);
 332                 }
 333                 fileScanner.removeFileScannerListener(this);
 334         }
 335
 336 }