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 ‘Bombe’ Roden &lt;bombe@freenetproject.org&gt;
  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                 try {
 135                         outputStream.addReplacement("$[EDITION]", String.valueOf(edition));
 136                         outputStream.addReplacement("$[URI]", project.getFinalRequestURI(0));
 137                         for (int index = 1; index <= fileOption.getEditionRange(); index++) {
 138                                 outputStream.addReplacement("$[URI+" + index + "]", project.getFinalRequestURI(index));
 139                                 outputStream.addReplacement("$[EDITION+" + index + "]", String.valueOf(edition + index));
 140                         }
 141                         StreamCopier.copy(fileInput, outputStream, length[0]);
 142                 } finally {
 143                         Closer.close(fileInput);
 144                         Closer.close(outputStream);
 145                         Closer.close(filteredByteOutputStream);
 146                 }
 147                 byte[] filteredBytes = filteredByteOutputStream.toByteArray();
 148                 length[0] = filteredBytes.length;
 149                 return new ByteArrayInputStream(filteredBytes);
 150         }
 151
 152         private InputStream createContainerInputStream(Map<String, List<String>> containerFiles, String containerName, int edition, long[] containerLength) throws IOException {
 153                 File tempFile = File.createTempFile("jsite", ".zip");
 154                 tempFile.deleteOnExit();
 155                 FileOutputStream fileOutputStream = new FileOutputStream(tempFile);
 156                 ZipOutputStream zipOutputStream = new ZipOutputStream(fileOutputStream);
 157                 try {
 158                         for (String filename: containerFiles.get(containerName)) {
 159                                 File dataFile = new File(project.getLocalPath(), filename);
 160                                 if (dataFile.exists()) {
 161                                         ZipEntry zipEntry = new ZipEntry(filename);
 162                                         long[] fileLength = new long[1];
 163                                         InputStream wrappedInputStream = createFileInputStream(filename, project.getFileOption(filename), edition, fileLength);
 164                                         try {
 165                                                 zipOutputStream.putNextEntry(zipEntry);
 166                                                 StreamCopier.copy(wrappedInputStream, zipOutputStream, fileLength[0]);
 167                                         } finally {
 168                                                 zipOutputStream.closeEntry();
 169                                                 wrappedInputStream.close();
 170                                         }
 171                                 }
 172                         }
 173                 } finally {
 174                         zipOutputStream.closeEntry();
 175                         Closer.close(zipOutputStream);
 176                         Closer.close(fileOutputStream);
 177                 }
 178
 179                 containerLength[0] = tempFile.length();
 180                 return new FileInputStream(tempFile);
 181         }
 182
 183         private FileEntry createFileEntry(String filename, int edition, Map<String, List<String>> containerFiles) {
 184                 FileEntry fileEntry = null;
 185                 FileOption fileOption = project.getFileOption(filename);
 186                 if (filename.startsWith("/container/:")) {
 187                         String containerName = filename.substring("/container/:".length());
 188                         try {
 189                                 long[] containerLength = new long[1];
 190                                 InputStream containerInputStream = createContainerInputStream(containerFiles, containerName, edition, containerLength);
 191                                 fileEntry = new DirectFileEntry(containerName + ".zip", "application/zip", containerInputStream, containerLength[0]);
 192                         } catch (IOException ioe1) {
 193                         }
 194                 } else {
 195                         if (fileOption.isInsert()) {
 196                                 try {
 197                                         long[] fileLength = new long[1];
 198                                         InputStream fileEntryInputStream = createFileInputStream(filename, fileOption, edition, fileLength);
 199                                         fileEntry = new DirectFileEntry(filename, project.getFileOption(filename).getMimeType(), fileEntryInputStream, fileLength[0]);
 200                                 } catch (IOException ioe1) {
 201                                 }
 202                         } else {
 203                                 fileEntry = new RedirectFileEntry(filename, fileOption.getMimeType(), fileOption.getCustomKey());
 204                         }
 205                 }
 206                 return fileEntry;
 207         }
 208
 209         private void createContainers(List<String> files, List<String> containers, Map<String, List<String>> containerFiles) {
 210                 for (String filename: new ArrayList<String>(files)) {
 211                         FileOption fileOption = project.getFileOption(filename);
 212                         String containerName = fileOption.getContainer();
 213                         if (!containerName.equals("")) {
 214                                 if (!containers.contains(containerName)) {
 215                                         containers.add(containerName);
 216                                         containerFiles.put(containerName, new ArrayList<String>());
 217                                         /* hmm. looks like a hack to me. */
 218                                         files.add("/container/:" + containerName);
 219                                 }
 220                                 containerFiles.get(containerName).add(filename);
 221                                 files.remove(filename);
 222                         }
 223                 }
 224         }
 225
 226         /**
 227          * {@inheritDoc}
 228          */
 229         public void run() {
 230                 fireProjectInsertStarted();
 231                 List<String> files = fileScanner.getFiles();
 232
 233                 /* create connection to node */
 234                 Connection connection = freenetInterface.getConnection("project-insert-" + counter++);
 235                 boolean connected = false;
 236                 Throwable cause = null;
 237                 try {
 238                         connected = connection.connect();
 239                 } catch (IOException e1) {
 240                         cause = e1;
 241                 }
 242
 243                 if (!connected) {
 244                         fireProjectInsertFinished(false, cause);
 245                         return;
 246                 }
 247
 248                 Client client = new Client(connection);
 249
 250                 /* create containers */
 251                 final List<String> containers = new ArrayList<String>();
 252                 final Map<String, List<String>> containerFiles = new HashMap<String, List<String>>();
 253                 createContainers(files, containers, containerFiles);
 254
 255                 /* collect files */
 256                 int edition = project.getEdition();
 257                 String dirURI = "USK@" + project.getInsertURI() + "/" + project.getPath() + "/" + edition + "/";
 258                 ClientPutComplexDir putDir = new ClientPutComplexDir("dir-" + counter++, dirURI);
 259                 putDir.setDefaultName(project.getIndexFile());
 260                 putDir.setVerbosity(Verbosity.ALL);
 261                 putDir.setMaxRetries(-1);
 262                 for (String filename: files) {
 263                         FileEntry fileEntry = createFileEntry(filename, edition, containerFiles);
 264                         if (fileEntry != null) {
 265                                 putDir.addFileEntry(fileEntry);
 266                         }
 267                 }
 268
 269                 /* start request */
 270                 try {
 271                         client.execute(putDir);
 272                 } catch (IOException ioe1) {
 273                         fireProjectInsertFinished(false, ioe1);
 274                         return;
 275                 }
 276
 277                 /* parse progress and success messages */
 278                 String finalURI = null;
 279                 boolean success = false;
 280                 boolean finished = false;
 281                 boolean disconnected = false;
 282                 while (!finished) {
 283                         Message message = client.readMessage();
 284                         finished = (message == null) || (disconnected = client.isDisconnected());
 285                         if (debug) {
 286                                 System.out.println(message);
 287                         }
 288                         if (!finished) {
 289                                 String messageName = message.getName();
 290                                 if ("URIGenerated".equals(messageName)) {
 291                                         finalURI = message.get("URI");
 292                                         fireProjectURIGenerated(finalURI);
 293                                 }
 294                                 if ("SimpleProgress".equals(messageName)) {
 295                                         int total = Integer.parseInt(message.get("Total"));
 296                                         int succeeded = Integer.parseInt(message.get("Succeeded"));
 297                                         int fatal = Integer.parseInt(message.get("FatallyFailed"));
 298                                         int failed = Integer.parseInt(message.get("Failed"));
 299                                         boolean finalized = Boolean.parseBoolean(message.get("FinalizedTotal"));
 300                                         fireProjectInsertProgress(succeeded, failed, fatal, total, finalized);
 301                                 }
 302                                 success = "PutSuccessful".equals(messageName);
 303                                 finished = success || "PutFailed".equals(messageName) || messageName.endsWith("Error");
 304                         }
 305                 }
 306
 307                 /* post-insert work */
 308                 fireProjectInsertFinished(success, disconnected ? new IOException("Connection terminated") : null);
 309                 if (success) {
 310                         String editionPart = finalURI.substring(finalURI.lastIndexOf('/') + 1);
 311                         int newEdition = Integer.parseInt(editionPart);
 312                         project.setEdition(newEdition);
 313                 }
 314         }
 315
 316         //
 317         // INTERFACE FileScannerListener
 318         //
 319
 320         /**
 321          * {@inheritDoc}
 322          */
 323         public void fileScannerFinished(FileScanner fileScanner) {
 324                 if (!fileScanner.isError()) {
 325                         new Thread(this).start();
 326                 } else {
 327                         fireProjectInsertFinished(false, null);
 328                 }
 329                 fileScanner.removeFileScannerListener(this);
 330         }
 331
 332 }