src/main/java/net/pterodactylus/sone/core/SoneDownloaderImpl.java

   1 /*
   2  * Sone - SoneDownloader.java - Copyright © 2010–2013 David Roden
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 package net.pterodactylus.sone.core;
  19
  20 import static java.lang.String.format;
  21 import static java.lang.System.currentTimeMillis;
  22 import static java.util.concurrent.TimeUnit.DAYS;
  23
  24 import java.io.InputStream;
  25 import java.net.MalformedURLException;
  26 import java.util.ArrayList;
  27 import java.util.HashMap;
  28 import java.util.HashSet;
  29 import java.util.List;
  30 import java.util.Map;
  31 import java.util.Set;
  32 import java.util.concurrent.TimeUnit;
  33 import java.util.logging.Level;
  34 import java.util.logging.Logger;
  35
  36 import net.pterodactylus.sone.core.FreenetInterface.Fetched;
  37 import net.pterodactylus.sone.data.Album;
  38 import net.pterodactylus.sone.data.Client;
  39 import net.pterodactylus.sone.data.Image;
  40 import net.pterodactylus.sone.data.Post;
  41 import net.pterodactylus.sone.data.PostReply;
  42 import net.pterodactylus.sone.data.Profile;
  43 import net.pterodactylus.sone.data.Sone;
  44 import net.pterodactylus.sone.data.Sone.SoneStatus;
  45 import net.pterodactylus.sone.data.SoneImpl;
  46 import net.pterodactylus.sone.database.PostBuilder;
  47 import net.pterodactylus.sone.database.PostReplyBuilder;
  48 import net.pterodactylus.util.io.Closer;
  49 import net.pterodactylus.util.logging.Logging;
  50 import net.pterodactylus.util.number.Numbers;
  51 import net.pterodactylus.util.service.AbstractService;
  52 import net.pterodactylus.util.xml.SimpleXML;
  53 import net.pterodactylus.util.xml.XML;
  54
  55 import freenet.client.FetchResult;
  56 import freenet.client.async.ClientContext;
  57 import freenet.client.async.USKCallback;
  58 import freenet.keys.FreenetURI;
  59 import freenet.keys.USK;
  60 import freenet.node.RequestStarter;
  61 import freenet.support.api.Bucket;
  62
  63 import com.db4o.ObjectContainer;
  64
  65 import com.google.common.annotations.VisibleForTesting;
  66 import org.w3c.dom.Document;
  67
  68 /**
  69  * The Sone downloader is responsible for download Sones as they are updated.
  70  *
  71  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  72  */
  73 public class SoneDownloaderImpl extends AbstractService implements SoneDownloader {
  74
  75         /** The logger. */
  76         private static final Logger logger = Logging.getLogger(SoneDownloaderImpl.class);
  77
  78         /** The maximum protocol version. */
  79         private static final int MAX_PROTOCOL_VERSION = 0;
  80
  81         /** The core. */
  82         private final Core core;
  83
  84         /** The Freenet interface. */
  85         private final FreenetInterface freenetInterface;
  86
  87         /** The sones to update. */
  88         private final Set<Sone> sones = new HashSet<Sone>();
  89
  90         /**
  91          * Creates a new Sone downloader.
  92          *
  93          * @param core
  94          *              The core
  95          * @param freenetInterface
  96          *              The Freenet interface
  97          */
  98         public SoneDownloaderImpl(Core core, FreenetInterface freenetInterface) {
  99                 super("Sone Downloader", false);
 100                 this.core = core;
 101                 this.freenetInterface = freenetInterface;
 102         }
 103
 104         //
 105         // ACTIONS
 106         //
 107
 108         /**
 109          * Adds the given Sone to the set of Sones that will be watched for updates.
 110          *
 111          * @param sone
 112          *              The Sone to add
 113          */
 114         @Override
 115         public void addSone(final Sone sone) {
 116                 if (!sones.add(sone)) {
 117                         freenetInterface.unregisterUsk(sone);
 118                 }
 119                 final USKCallback uskCallback = new USKCallback() {
 120
 121                         @Override
 122                         @SuppressWarnings("synthetic-access")
 123                         public void onFoundEdition(long edition, USK key,
 124                                         ObjectContainer objectContainer,
 125                                         ClientContext clientContext, boolean metadata,
 126                                         short codec, byte[] data, boolean newKnownGood,
 127                                         boolean newSlotToo) {
 128                                 logger.log(Level.FINE, format(
 129                                                 "Found USK update for Sone “%s” at %s, new known good: %s, new slot too: %s.",
 130                                                 sone, key, newKnownGood, newSlotToo));
 131                                 if (edition > sone.getLatestEdition()) {
 132                                         sone.setLatestEdition(edition);
 133                                         new Thread(fetchSoneAction(sone),
 134                                                         "Sone Downloader").start();
 135                                 }
 136                         }
 137
 138                         @Override
 139                         public short getPollingPriorityProgress() {
 140                                 return RequestStarter.INTERACTIVE_PRIORITY_CLASS;
 141                         }
 142
 143                         @Override
 144                         public short getPollingPriorityNormal() {
 145                                 return RequestStarter.INTERACTIVE_PRIORITY_CLASS;
 146                         }
 147                 };
 148                 if (soneHasBeenActiveRecently(sone)) {
 149                         freenetInterface.registerActiveUsk(sone.getRequestUri(),
 150                                         uskCallback);
 151                 } else {
 152                         freenetInterface.registerPassiveUsk(sone.getRequestUri(),
 153                                         uskCallback);
 154                 }
 155         }
 156
 157         private boolean soneHasBeenActiveRecently(Sone sone) {
 158                 return (currentTimeMillis() - sone.getTime()) < DAYS.toMillis(7);
 159         }
 160
 161         private void fetchSone(Sone sone) {
 162                 fetchSone(sone, sone.getRequestUri().sskForUSK());
 163         }
 164
 165         /**
 166          * Fetches the updated Sone. This method can be used to fetch a Sone from a
 167          * specific URI.
 168          *
 169          * @param sone
 170          *              The Sone to fetch
 171          * @param soneUri
 172          *              The URI to fetch the Sone from
 173          */
 174         @Override
 175         public void fetchSone(Sone sone, FreenetURI soneUri) {
 176                 fetchSone(sone, soneUri, false);
 177         }
 178
 179         /**
 180          * Fetches the Sone from the given URI.
 181          *
 182          * @param sone
 183          *              The Sone to fetch
 184          * @param soneUri
 185          *              The URI of the Sone to fetch
 186          * @param fetchOnly
 187          *              {@code true} to only fetch and parse the Sone, {@code false}
 188          *              to {@link Core#updateSone(Sone) update} it in the core
 189          * @return The downloaded Sone, or {@code null} if the Sone could not be
 190          *         downloaded
 191          */
 192         @Override
 193         public Sone fetchSone(Sone sone, FreenetURI soneUri, boolean fetchOnly) {
 194                 logger.log(Level.FINE, String.format("Starting fetch for Sone “%s” from %s…", sone, soneUri));
 195                 FreenetURI requestUri = soneUri.setMetaString(new String[] { "sone.xml" });
 196                 sone.setStatus(SoneStatus.downloading);
 197                 try {
 198                         Fetched fetchResults = freenetInterface.fetchUri(requestUri);
 199                         if (fetchResults == null) {
 200                                 /* TODO - mark Sone as bad. */
 201                                 return null;
 202                         }
 203                         logger.log(Level.FINEST, String.format("Got %d bytes back.", fetchResults.getFetchResult().size()));
 204                         Sone parsedSone = parseSone(sone, fetchResults.getFetchResult(), fetchResults.getFreenetUri());
 205                         if (parsedSone != null) {
 206                                 if (!fetchOnly) {
 207                                         parsedSone.setStatus((parsedSone.getTime() == 0) ? SoneStatus.unknown : SoneStatus.idle);
 208                                         core.updateSone(parsedSone);
 209                                         addSone(parsedSone);
 210                                 }
 211                         }
 212                         return parsedSone;
 213                 } finally {
 214                         sone.setStatus((sone.getTime() == 0) ? SoneStatus.unknown : SoneStatus.idle);
 215                 }
 216         }
 217
 218         /**
 219          * Parses a Sone from a fetch result.
 220          *
 221          * @param originalSone
 222          *              The sone to parse, or {@code null} if the Sone is yet unknown
 223          * @param fetchResult
 224          *              The fetch result
 225          * @param requestUri
 226          *              The requested URI
 227          * @return The parsed Sone, or {@code null} if the Sone could not be parsed
 228          */
 229         private Sone parseSone(Sone originalSone, FetchResult fetchResult, FreenetURI requestUri) {
 230                 logger.log(Level.FINEST, String.format("Parsing FetchResult (%d bytes, %s) for %s…", fetchResult.size(), fetchResult.getMimeType(), originalSone));
 231                 Bucket soneBucket = fetchResult.asBucket();
 232                 InputStream soneInputStream = null;
 233                 try {
 234                         soneInputStream = soneBucket.getInputStream();
 235                         Sone parsedSone = parseSone(originalSone, soneInputStream);
 236                         if (parsedSone != null) {
 237                                 parsedSone.setLatestEdition(requestUri.getEdition());
 238                                 if (requestUri.getKeyType().equals("USK")) {
 239                                         parsedSone.setRequestUri(requestUri.setMetaString(new String[0]));
 240                                 } else {
 241                                         parsedSone.setRequestUri(requestUri.setKeyType("USK").setDocName("Sone").setMetaString(new String[0]));
 242                                 }
 243                         }
 244                         return parsedSone;
 245                 } catch (Exception e1) {
 246                         logger.log(Level.WARNING, String.format("Could not parse Sone from %s!", requestUri), e1);
 247                 } finally {
 248                         Closer.close(soneInputStream);
 249                         soneBucket.free();
 250                 }
 251                 return null;
 252         }
 253
 254         /**
 255          * Parses a Sone from the given input stream and creates a new Sone from the
 256          * parsed data.
 257          *
 258          * @param originalSone
 259          *              The Sone to update
 260          * @param soneInputStream
 261          *              The input stream to parse the Sone from
 262          * @return The parsed Sone
 263          * @throws SoneException
 264          *              if a parse error occurs, or the protocol is invalid
 265          */
 266         @VisibleForTesting
 267         protected Sone parseSone(Sone originalSone, InputStream soneInputStream) throws SoneException {
 268                 /* TODO - impose a size limit? */
 269
 270                 Document document;
 271                 /* XML parsing is not thread-safe. */
 272                 synchronized (this) {
 273                         document = XML.transformToDocument(soneInputStream);
 274                 }
 275                 if (document == null) {
 276                         /* TODO - mark Sone as bad. */
 277                         logger.log(Level.WARNING, String.format("Could not parse XML for Sone %s!", originalSone));
 278                         return null;
 279                 }
 280
 281                 Sone sone = new SoneImpl(originalSone.getId(), originalSone.isLocal()).setIdentity(originalSone.getIdentity());
 282
 283                 SimpleXML soneXml;
 284                 try {
 285                         soneXml = SimpleXML.fromDocument(document);
 286                 } catch (NullPointerException npe1) {
 287                         /* for some reason, invalid XML can cause NPEs. */
 288                         logger.log(Level.WARNING, String.format("XML for Sone %s can not be parsed!", sone), npe1);
 289                         return null;
 290                 }
 291
 292                 Integer protocolVersion = null;
 293                 String soneProtocolVersion = soneXml.getValue("protocol-version", null);
 294                 if (soneProtocolVersion != null) {
 295                         protocolVersion = Numbers.safeParseInteger(soneProtocolVersion);
 296                 }
 297                 if (protocolVersion == null) {
 298                         logger.log(Level.INFO, "No protocol version found, assuming 0.");
 299                         protocolVersion = 0;
 300                 }
 301
 302                 if (protocolVersion < 0) {
 303                         logger.log(Level.WARNING, String.format("Invalid protocol version: %d! Not parsing Sone.", protocolVersion));
 304                         return null;
 305                 }
 306
 307                 /* check for valid versions. */
 308                 if (protocolVersion > MAX_PROTOCOL_VERSION) {
 309                         logger.log(Level.WARNING, String.format("Unknown protocol version: %d! Not parsing Sone.", protocolVersion));
 310                         return null;
 311                 }
 312
 313                 String soneTime = soneXml.getValue("time", null);
 314                 if (soneTime == null) {
 315                         /* TODO - mark Sone as bad. */
 316                         logger.log(Level.WARNING, String.format("Downloaded time for Sone %s was null!", sone));
 317                         return null;
 318                 }
 319                 try {
 320                         sone.setTime(Long.parseLong(soneTime));
 321                 } catch (NumberFormatException nfe1) {
 322                         /* TODO - mark Sone as bad. */
 323                         logger.log(Level.WARNING, String.format("Downloaded Sone %s with invalid time: %s", sone, soneTime));
 324                         return null;
 325                 }
 326
 327                 SimpleXML clientXml = soneXml.getNode("client");
 328                 if (clientXml != null) {
 329                         String clientName = clientXml.getValue("name", null);
 330                         String clientVersion = clientXml.getValue("version", null);
 331                         if ((clientName == null) || (clientVersion == null)) {
 332                                 logger.log(Level.WARNING, String.format("Download Sone %s with client XML but missing name or version!", sone));
 333                                 return null;
 334                         }
 335                         sone.setClient(new Client(clientName, clientVersion));
 336                 }
 337
 338                 String soneRequestUri = soneXml.getValue("request-uri", null);
 339                 if (soneRequestUri != null) {
 340                         try {
 341                                 sone.setRequestUri(new FreenetURI(soneRequestUri));
 342                         } catch (MalformedURLException mue1) {
 343                                 /* TODO - mark Sone as bad. */
 344                                 logger.log(Level.WARNING, String.format("Downloaded Sone %s has invalid request URI: %s", sone, soneRequestUri), mue1);
 345                                 return null;
 346                         }
 347                 }
 348
 349                 if (originalSone.getInsertUri() != null) {
 350                         sone.setInsertUri(originalSone.getInsertUri());
 351                 }
 352
 353                 SimpleXML profileXml = soneXml.getNode("profile");
 354                 if (profileXml == null) {
 355                         /* TODO - mark Sone as bad. */
 356                         logger.log(Level.WARNING, String.format("Downloaded Sone %s has no profile!", sone));
 357                         return null;
 358                 }
 359
 360                 /* parse profile. */
 361                 String profileFirstName = profileXml.getValue("first-name", null);
 362                 String profileMiddleName = profileXml.getValue("middle-name", null);
 363                 String profileLastName = profileXml.getValue("last-name", null);
 364                 Integer profileBirthDay = Numbers.safeParseInteger(profileXml.getValue("birth-day", null));
 365                 Integer profileBirthMonth = Numbers.safeParseInteger(profileXml.getValue("birth-month", null));
 366                 Integer profileBirthYear = Numbers.safeParseInteger(profileXml.getValue("birth-year", null));
 367                 Profile profile = new Profile(sone).setFirstName(profileFirstName).setMiddleName(profileMiddleName).setLastName(profileLastName);
 368                 profile.setBirthDay(profileBirthDay).setBirthMonth(profileBirthMonth).setBirthYear(profileBirthYear);
 369                 /* avatar is processed after images are loaded. */
 370                 String avatarId = profileXml.getValue("avatar", null);
 371
 372                 /* parse profile fields. */
 373                 SimpleXML profileFieldsXml = profileXml.getNode("fields");
 374                 if (profileFieldsXml != null) {
 375                         for (SimpleXML fieldXml : profileFieldsXml.getNodes("field")) {
 376                                 String fieldName = fieldXml.getValue("field-name", null);
 377                                 String fieldValue = fieldXml.getValue("field-value", "");
 378                                 if (fieldName == null) {
 379                                         logger.log(Level.WARNING, String.format("Downloaded profile field for Sone %s with missing data! Name: %s, Value: %s", sone, fieldName, fieldValue));
 380                                         return null;
 381                                 }
 382                                 try {
 383                                         profile.addField(fieldName.trim()).setValue(fieldValue);
 384                                 } catch (IllegalArgumentException iae1) {
 385                                         logger.log(Level.WARNING, String.format("Duplicate field: %s", fieldName), iae1);
 386                                         return null;
 387                                 }
 388                         }
 389                 }
 390
 391                 /* parse posts. */
 392                 SimpleXML postsXml = soneXml.getNode("posts");
 393                 Set<Post> posts = new HashSet<Post>();
 394                 if (postsXml == null) {
 395                         /* TODO - mark Sone as bad. */
 396                         logger.log(Level.WARNING, String.format("Downloaded Sone %s has no posts!", sone));
 397                 } else {
 398                         for (SimpleXML postXml : postsXml.getNodes("post")) {
 399                                 String postId = postXml.getValue("id", null);
 400                                 String postRecipientId = postXml.getValue("recipient", null);
 401                                 String postTime = postXml.getValue("time", null);
 402                                 String postText = postXml.getValue("text", null);
 403                                 if ((postId == null) || (postTime == null) || (postText == null)) {
 404                                         /* TODO - mark Sone as bad. */
 405                                         logger.log(Level.WARNING, String.format("Downloaded post for Sone %s with missing data! ID: %s, Time: %s, Text: %s", sone, postId, postTime, postText));
 406                                         return null;
 407                                 }
 408                                 try {
 409                                         PostBuilder postBuilder = core.postBuilder();
 410                                         /* TODO - parse time correctly. */
 411                                         postBuilder.withId(postId).from(sone.getId()).withTime(Long.parseLong(postTime)).withText(postText);
 412                                         if ((postRecipientId != null) && (postRecipientId.length() == 43)) {
 413                                                 postBuilder.to(postRecipientId);
 414                                         }
 415                                         posts.add(postBuilder.build());
 416                                 } catch (NumberFormatException nfe1) {
 417                                         /* TODO - mark Sone as bad. */
 418                                         logger.log(Level.WARNING, String.format("Downloaded post for Sone %s with invalid time: %s", sone, postTime));
 419                                         return null;
 420                                 }
 421                         }
 422                 }
 423
 424                 /* parse replies. */
 425                 SimpleXML repliesXml = soneXml.getNode("replies");
 426                 Set<PostReply> replies = new HashSet<PostReply>();
 427                 if (repliesXml == null) {
 428                         /* TODO - mark Sone as bad. */
 429                         logger.log(Level.WARNING, String.format("Downloaded Sone %s has no replies!", sone));
 430                 } else {
 431                         for (SimpleXML replyXml : repliesXml.getNodes("reply")) {
 432                                 String replyId = replyXml.getValue("id", null);
 433                                 String replyPostId = replyXml.getValue("post-id", null);
 434                                 String replyTime = replyXml.getValue("time", null);
 435                                 String replyText = replyXml.getValue("text", null);
 436                                 if ((replyId == null) || (replyPostId == null) || (replyTime == null) || (replyText == null)) {
 437                                         /* TODO - mark Sone as bad. */
 438                                         logger.log(Level.WARNING, String.format("Downloaded reply for Sone %s with missing data! ID: %s, Post: %s, Time: %s, Text: %s", sone, replyId, replyPostId, replyTime, replyText));
 439                                         return null;
 440                                 }
 441                                 try {
 442                                         PostReplyBuilder postReplyBuilder = core.postReplyBuilder();
 443                                         /* TODO - parse time correctly. */
 444                                         postReplyBuilder.withId(replyId).from(sone.getId()).to(replyPostId).withTime(Long.parseLong(replyTime)).withText(replyText);
 445                                         replies.add(postReplyBuilder.build());
 446                                 } catch (NumberFormatException nfe1) {
 447                                         /* TODO - mark Sone as bad. */
 448                                         logger.log(Level.WARNING, String.format("Downloaded reply for Sone %s with invalid time: %s", sone, replyTime));
 449                                         return null;
 450                                 }
 451                         }
 452                 }
 453
 454                 /* parse liked post IDs. */
 455                 SimpleXML likePostIdsXml = soneXml.getNode("post-likes");
 456                 Set<String> likedPostIds = new HashSet<String>();
 457                 if (likePostIdsXml == null) {
 458                         /* TODO - mark Sone as bad. */
 459                         logger.log(Level.WARNING, String.format("Downloaded Sone %s has no post likes!", sone));
 460                 } else {
 461                         for (SimpleXML likedPostIdXml : likePostIdsXml.getNodes("post-like")) {
 462                                 String postId = likedPostIdXml.getValue();
 463                                 likedPostIds.add(postId);
 464                         }
 465                 }
 466
 467                 /* parse liked reply IDs. */
 468                 SimpleXML likeReplyIdsXml = soneXml.getNode("reply-likes");
 469                 Set<String> likedReplyIds = new HashSet<String>();
 470                 if (likeReplyIdsXml == null) {
 471                         /* TODO - mark Sone as bad. */
 472                         logger.log(Level.WARNING, String.format("Downloaded Sone %s has no reply likes!", sone));
 473                 } else {
 474                         for (SimpleXML likedReplyIdXml : likeReplyIdsXml.getNodes("reply-like")) {
 475                                 String replyId = likedReplyIdXml.getValue();
 476                                 likedReplyIds.add(replyId);
 477                         }
 478                 }
 479
 480                 /* parse albums. */
 481                 SimpleXML albumsXml = soneXml.getNode("albums");
 482                 Map<String, Image> allImages = new HashMap<String, Image>();
 483                 List<Album> topLevelAlbums = new ArrayList<Album>();
 484                 if (albumsXml != null) {
 485                         for (SimpleXML albumXml : albumsXml.getNodes("album")) {
 486                                 String id = albumXml.getValue("id", null);
 487                                 String parentId = albumXml.getValue("parent", null);
 488                                 String title = albumXml.getValue("title", null);
 489                                 String description = albumXml.getValue("description", "");
 490                                 String albumImageId = albumXml.getValue("album-image", null);
 491                                 if ((id == null) || (title == null)) {
 492                                         logger.log(Level.WARNING, String.format("Downloaded Sone %s contains invalid album!", sone));
 493                                         return null;
 494                                 }
 495                                 Album parent = null;
 496                                 if (parentId != null) {
 497                                         parent = core.getAlbum(parentId);
 498                                         if (parent == null) {
 499                                                 logger.log(Level.WARNING, String.format("Downloaded Sone %s has album with invalid parent!", sone));
 500                                                 return null;
 501                                         }
 502                                 }
 503                                 Album album = core.albumBuilder()
 504                                                 .withId(id)
 505                                                 .by(sone)
 506                                                 .build()
 507                                                 .modify()
 508                                                 .setTitle(title)
 509                                                 .setDescription(description)
 510                                                 .update();
 511                                 if (parent != null) {
 512                                         parent.addAlbum(album);
 513                                 } else {
 514                                         topLevelAlbums.add(album);
 515                                 }
 516                                 SimpleXML imagesXml = albumXml.getNode("images");
 517                                 if (imagesXml != null) {
 518                                         for (SimpleXML imageXml : imagesXml.getNodes("image")) {
 519                                                 String imageId = imageXml.getValue("id", null);
 520                                                 String imageCreationTimeString = imageXml.getValue("creation-time", null);
 521                                                 String imageKey = imageXml.getValue("key", null);
 522                                                 String imageTitle = imageXml.getValue("title", null);
 523                                                 String imageDescription = imageXml.getValue("description", "");
 524                                                 String imageWidthString = imageXml.getValue("width", null);
 525                                                 String imageHeightString = imageXml.getValue("height", null);
 526                                                 if ((imageId == null) || (imageCreationTimeString == null) || (imageKey == null) || (imageTitle == null) || (imageWidthString == null) || (imageHeightString == null)) {
 527                                                         logger.log(Level.WARNING, String.format("Downloaded Sone %s contains invalid images!", sone));
 528                                                         return null;
 529                                                 }
 530                                                 long creationTime = Numbers.safeParseLong(imageCreationTimeString, 0L);
 531                                                 int imageWidth = Numbers.safeParseInteger(imageWidthString, 0);
 532                                                 int imageHeight = Numbers.safeParseInteger(imageHeightString, 0);
 533                                                 if ((imageWidth < 1) || (imageHeight < 1)) {
 534                                                         logger.log(Level.WARNING, String.format("Downloaded Sone %s contains image %s with invalid dimensions (%s, %s)!", sone, imageId, imageWidthString, imageHeightString));
 535                                                         return null;
 536                                                 }
 537                                                 Image image = core.imageBuilder().withId(imageId).build().modify().setSone(sone).setKey(imageKey).setCreationTime(creationTime).update();
 538                                                 image = image.modify().setTitle(imageTitle).setDescription(imageDescription).update();
 539                                                 image = image.modify().setWidth(imageWidth).setHeight(imageHeight).update();
 540                                                 album.addImage(image);
 541                                                 allImages.put(imageId, image);
 542                                         }
 543                                 }
 544                                 album.modify().setAlbumImage(albumImageId).update();
 545                         }
 546                 }
 547
 548                 /* process avatar. */
 549                 if (avatarId != null) {
 550                         profile.setAvatar(allImages.get(avatarId));
 551                 }
 552
 553                 /* okay, apparently everything was parsed correctly. Now import. */
 554                 /* atomic setter operation on the Sone. */
 555                 synchronized (sone) {
 556                         sone.setProfile(profile);
 557                         sone.setPosts(posts);
 558                         sone.setReplies(replies);
 559                         sone.setLikePostIds(likedPostIds);
 560                         sone.setLikeReplyIds(likedReplyIds);
 561                         for (Album album : topLevelAlbums) {
 562                                 sone.getRootAlbum().addAlbum(album);
 563                         }
 564                 }
 565
 566                 return sone;
 567         }
 568
 569         @Override
 570         public Runnable fetchSoneWithUriAction(final Sone sone) {
 571                 return new Runnable() {
 572                         @Override
 573                         public void run() {
 574                                 fetchSone(sone, sone.getRequestUri());
 575                         }
 576                 };
 577         }
 578
 579         @Override
 580         public Runnable fetchSoneAction(final Sone sone) {
 581                 return new Runnable() {
 582                         @Override
 583                         public void run() {
 584                                 fetchSone(sone);
 585                         }
 586                 };
 587         }
 588
 589         /** {@inheritDoc} */
 590         @Override
 591         protected void serviceStop() {
 592                 for (Sone sone : sones) {
 593                         freenetInterface.unregisterUsk(sone);
 594                 }
 595         }
 596
 597 }