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.sone.database.SoneBuilder;
  49 import net.pterodactylus.util.io.Closer;
  50 import net.pterodactylus.util.logging.Logging;
  51 import net.pterodactylus.util.number.Numbers;
  52 import net.pterodactylus.util.service.AbstractService;
  53 import net.pterodactylus.util.xml.SimpleXML;
  54 import net.pterodactylus.util.xml.XML;
  55
  56 import freenet.client.FetchResult;
  57 import freenet.client.async.ClientContext;
  58 import freenet.client.async.USKCallback;
  59 import freenet.keys.FreenetURI;
  60 import freenet.keys.USK;
  61 import freenet.node.RequestStarter;
  62 import freenet.support.api.Bucket;
  63
  64 import com.db4o.ObjectContainer;
  65
  66 import com.google.common.annotations.VisibleForTesting;
  67 import org.w3c.dom.Document;
  68
  69 /**
  70  * The Sone downloader is responsible for download Sones as they are updated.
  71  *
  72  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  73  */
  74 public class SoneDownloaderImpl extends AbstractService implements SoneDownloader {
  75
  76         /** The logger. */
  77         private static final Logger logger = Logging.getLogger(SoneDownloaderImpl.class);
  78
  79         /** The maximum protocol version. */
  80         private static final int MAX_PROTOCOL_VERSION = 0;
  81
  82         /** The core. */
  83         private final Core core;
  84
  85         /** The Freenet interface. */
  86         private final FreenetInterface freenetInterface;
  87
  88         /** The sones to update. */
  89         private final Set<Sone> sones = new HashSet<Sone>();
  90
  91         /**
  92          * Creates a new Sone downloader.
  93          *
  94          * @param core
  95          *              The core
  96          * @param freenetInterface
  97          *              The Freenet interface
  98          */
  99         public SoneDownloaderImpl(Core core, FreenetInterface freenetInterface) {
 100                 super("Sone Downloader", false);
 101                 this.core = core;
 102                 this.freenetInterface = freenetInterface;
 103         }
 104
 105         //
 106         // ACTIONS
 107         //
 108
 109         /**
 110          * Adds the given Sone to the set of Sones that will be watched for updates.
 111          *
 112          * @param sone
 113          *              The Sone to add
 114          */
 115         @Override
 116         public void addSone(final Sone sone) {
 117                 if (!sones.add(sone)) {
 118                         freenetInterface.unregisterUsk(sone);
 119                 }
 120                 final USKCallback uskCallback = new USKCallback() {
 121
 122                         @Override
 123                         @SuppressWarnings("synthetic-access")
 124                         public void onFoundEdition(long edition, USK key,
 125                                         ObjectContainer objectContainer,
 126                                         ClientContext clientContext, boolean metadata,
 127                                         short codec, byte[] data, boolean newKnownGood,
 128                                         boolean newSlotToo) {
 129                                 logger.log(Level.FINE, format(
 130                                                 "Found USK update for Sone “%s” at %s, new known good: %s, new slot too: %s.",
 131                                                 sone, key, newKnownGood, newSlotToo));
 132                                 if (edition > sone.getLatestEdition()) {
 133                                         sone.setLatestEdition(edition);
 134                                         new Thread(fetchSoneAction(sone),
 135                                                         "Sone Downloader").start();
 136                                 }
 137                         }
 138
 139                         @Override
 140                         public short getPollingPriorityProgress() {
 141                                 return RequestStarter.INTERACTIVE_PRIORITY_CLASS;
 142                         }
 143
 144                         @Override
 145                         public short getPollingPriorityNormal() {
 146                                 return RequestStarter.INTERACTIVE_PRIORITY_CLASS;
 147                         }
 148                 };
 149                 if (soneHasBeenActiveRecently(sone)) {
 150                         freenetInterface.registerActiveUsk(sone.getRequestUri(),
 151                                         uskCallback);
 152                 } else {
 153                         freenetInterface.registerPassiveUsk(sone.getRequestUri(),
 154                                         uskCallback);
 155                 }
 156         }
 157
 158         private boolean soneHasBeenActiveRecently(Sone sone) {
 159                 return (currentTimeMillis() - sone.getTime()) < DAYS.toMillis(7);
 160         }
 161
 162         private void fetchSone(Sone sone) {
 163                 fetchSone(sone, sone.getRequestUri().sskForUSK());
 164         }
 165
 166         /**
 167          * Fetches the updated Sone. This method can be used to fetch a Sone from a
 168          * specific URI.
 169          *
 170          * @param sone
 171          *              The Sone to fetch
 172          * @param soneUri
 173          *              The URI to fetch the Sone from
 174          */
 175         @Override
 176         public void fetchSone(Sone sone, FreenetURI soneUri) {
 177                 fetchSone(sone, soneUri, false);
 178         }
 179
 180         /**
 181          * Fetches the Sone from the given URI.
 182          *
 183          * @param sone
 184          *              The Sone to fetch
 185          * @param soneUri
 186          *              The URI of the Sone to fetch
 187          * @param fetchOnly
 188          *              {@code true} to only fetch and parse the Sone, {@code false}
 189          *              to {@link Core#updateSone(Sone) update} it in the core
 190          * @return The downloaded Sone, or {@code null} if the Sone could not be
 191          *         downloaded
 192          */
 193         @Override
 194         public Sone fetchSone(Sone sone, FreenetURI soneUri, boolean fetchOnly) {
 195                 logger.log(Level.FINE, String.format("Starting fetch for Sone “%s” from %s…", sone, soneUri));
 196                 FreenetURI requestUri = soneUri.setMetaString(new String[] { "sone.xml" });
 197                 sone.setStatus(SoneStatus.downloading);
 198                 try {
 199                         Fetched fetchResults = freenetInterface.fetchUri(requestUri);
 200                         if (fetchResults == null) {
 201                                 /* TODO - mark Sone as bad. */
 202                                 return null;
 203                         }
 204                         logger.log(Level.FINEST, String.format("Got %d bytes back.", fetchResults.getFetchResult().size()));
 205                         Sone parsedSone = parseSone(sone, fetchResults.getFetchResult(), fetchResults.getFreenetUri());
 206                         if (parsedSone != null) {
 207                                 if (!fetchOnly) {
 208                                         parsedSone.setStatus((parsedSone.getTime() == 0) ? SoneStatus.unknown : SoneStatus.idle);
 209                                         core.updateSone(parsedSone);
 210                                         addSone(parsedSone);
 211                                 }
 212                         }
 213                         return parsedSone;
 214                 } finally {
 215                         sone.setStatus((sone.getTime() == 0) ? SoneStatus.unknown : SoneStatus.idle);
 216                 }
 217         }
 218
 219         /**
 220          * Parses a Sone from a fetch result.
 221          *
 222          * @param originalSone
 223          *              The sone to parse, or {@code null} if the Sone is yet unknown
 224          * @param fetchResult
 225          *              The fetch result
 226          * @param requestUri
 227          *              The requested URI
 228          * @return The parsed Sone, or {@code null} if the Sone could not be parsed
 229          */
 230         private Sone parseSone(Sone originalSone, FetchResult fetchResult, FreenetURI requestUri) {
 231                 logger.log(Level.FINEST, String.format("Parsing FetchResult (%d bytes, %s) for %s…", fetchResult.size(), fetchResult.getMimeType(), originalSone));
 232                 Bucket soneBucket = fetchResult.asBucket();
 233                 InputStream soneInputStream = null;
 234                 try {
 235                         soneInputStream = soneBucket.getInputStream();
 236                         Sone parsedSone = parseSone(originalSone, soneInputStream);
 237                         if (parsedSone != null) {
 238                                 parsedSone.setLatestEdition(requestUri.getEdition());
 239                                 if (requestUri.getKeyType().equals("USK")) {
 240                                         parsedSone.setRequestUri(requestUri.setMetaString(new String[0]));
 241                                 } else {
 242                                         parsedSone.setRequestUri(requestUri.setKeyType("USK").setDocName("Sone").setMetaString(new String[0]));
 243                                 }
 244                         }
 245                         return parsedSone;
 246                 } catch (Exception e1) {
 247                         logger.log(Level.WARNING, String.format("Could not parse Sone from %s!", requestUri), e1);
 248                 } finally {
 249                         Closer.close(soneInputStream);
 250                         soneBucket.free();
 251                 }
 252                 return null;
 253         }
 254
 255         /**
 256          * Parses a Sone from the given input stream and creates a new Sone from the
 257          * parsed data.
 258          *
 259          * @param originalSone
 260          *              The Sone to update
 261          * @param soneInputStream
 262          *              The input stream to parse the Sone from
 263          * @return The parsed Sone
 264          * @throws SoneException
 265          *              if a parse error occurs, or the protocol is invalid
 266          */
 267         @VisibleForTesting
 268         protected Sone parseSone(Sone originalSone, InputStream soneInputStream) throws SoneException {
 269                 /* TODO - impose a size limit? */
 270
 271                 Document document;
 272                 /* XML parsing is not thread-safe. */
 273                 synchronized (this) {
 274                         document = XML.transformToDocument(soneInputStream);
 275                 }
 276                 if (document == null) {
 277                         /* TODO - mark Sone as bad. */
 278                         logger.log(Level.WARNING, String.format("Could not parse XML for Sone %s!", originalSone));
 279                         return null;
 280                 }
 281
 282                 SoneBuilder soneBuilder = core.soneBuilder().from(originalSone.getIdentity());
 283                 if (originalSone.isLocal()) {
 284                         soneBuilder = soneBuilder.local();
 285                 }
 286                 Sone sone = soneBuilder.build();
 287
 288                 SimpleXML soneXml;
 289                 try {
 290                         soneXml = SimpleXML.fromDocument(document);
 291                 } catch (NullPointerException npe1) {
 292                         /* for some reason, invalid XML can cause NPEs. */
 293                         logger.log(Level.WARNING, String.format("XML for Sone %s can not be parsed!", sone), npe1);
 294                         return null;
 295                 }
 296
 297                 Integer protocolVersion = null;
 298                 String soneProtocolVersion = soneXml.getValue("protocol-version", null);
 299                 if (soneProtocolVersion != null) {
 300                         protocolVersion = Numbers.safeParseInteger(soneProtocolVersion);
 301                 }
 302                 if (protocolVersion == null) {
 303                         logger.log(Level.INFO, "No protocol version found, assuming 0.");
 304                         protocolVersion = 0;
 305                 }
 306
 307                 if (protocolVersion < 0) {
 308                         logger.log(Level.WARNING, String.format("Invalid protocol version: %d! Not parsing Sone.", protocolVersion));
 309                         return null;
 310                 }
 311
 312                 /* check for valid versions. */
 313                 if (protocolVersion > MAX_PROTOCOL_VERSION) {
 314                         logger.log(Level.WARNING, String.format("Unknown protocol version: %d! Not parsing Sone.", protocolVersion));
 315                         return null;
 316                 }
 317
 318                 String soneTime = soneXml.getValue("time", null);
 319                 if (soneTime == null) {
 320                         /* TODO - mark Sone as bad. */
 321                         logger.log(Level.WARNING, String.format("Downloaded time for Sone %s was null!", sone));
 322                         return null;
 323                 }
 324                 try {
 325                         sone.setTime(Long.parseLong(soneTime));
 326                 } catch (NumberFormatException nfe1) {
 327                         /* TODO - mark Sone as bad. */
 328                         logger.log(Level.WARNING, String.format("Downloaded Sone %s with invalid time: %s", sone, soneTime));
 329                         return null;
 330                 }
 331
 332                 SimpleXML clientXml = soneXml.getNode("client");
 333                 if (clientXml != null) {
 334                         String clientName = clientXml.getValue("name", null);
 335                         String clientVersion = clientXml.getValue("version", null);
 336                         if ((clientName == null) || (clientVersion == null)) {
 337                                 logger.log(Level.WARNING, String.format("Download Sone %s with client XML but missing name or version!", sone));
 338                                 return null;
 339                         }
 340                         sone.setClient(new Client(clientName, clientVersion));
 341                 }
 342
 343                 String soneRequestUri = soneXml.getValue("request-uri", null);
 344                 if (soneRequestUri != null) {
 345                         try {
 346                                 sone.setRequestUri(new FreenetURI(soneRequestUri));
 347                         } catch (MalformedURLException mue1) {
 348                                 /* TODO - mark Sone as bad. */
 349                                 logger.log(Level.WARNING, String.format("Downloaded Sone %s has invalid request URI: %s", sone, soneRequestUri), mue1);
 350                                 return null;
 351                         }
 352                 }
 353
 354                 SimpleXML profileXml = soneXml.getNode("profile");
 355                 if (profileXml == null) {
 356                         /* TODO - mark Sone as bad. */
 357                         logger.log(Level.WARNING, String.format("Downloaded Sone %s has no profile!", sone));
 358                         return null;
 359                 }
 360
 361                 /* parse profile. */
 362                 String profileFirstName = profileXml.getValue("first-name", null);
 363                 String profileMiddleName = profileXml.getValue("middle-name", null);
 364                 String profileLastName = profileXml.getValue("last-name", null);
 365                 Integer profileBirthDay = Numbers.safeParseInteger(profileXml.getValue("birth-day", null));
 366                 Integer profileBirthMonth = Numbers.safeParseInteger(profileXml.getValue("birth-month", null));
 367                 Integer profileBirthYear = Numbers.safeParseInteger(profileXml.getValue("birth-year", null));
 368                 Profile profile = new Profile(sone).setFirstName(profileFirstName).setMiddleName(profileMiddleName).setLastName(profileLastName);
 369                 profile.setBirthDay(profileBirthDay).setBirthMonth(profileBirthMonth).setBirthYear(profileBirthYear);
 370                 /* avatar is processed after images are loaded. */
 371                 String avatarId = profileXml.getValue("avatar", null);
 372
 373                 /* parse profile fields. */
 374                 SimpleXML profileFieldsXml = profileXml.getNode("fields");
 375                 if (profileFieldsXml != null) {
 376                         for (SimpleXML fieldXml : profileFieldsXml.getNodes("field")) {
 377                                 String fieldName = fieldXml.getValue("field-name", null);
 378                                 String fieldValue = fieldXml.getValue("field-value", "");
 379                                 if (fieldName == null) {
 380                                         logger.log(Level.WARNING, String.format("Downloaded profile field for Sone %s with missing data! Name: %s, Value: %s", sone, fieldName, fieldValue));
 381                                         return null;
 382                                 }
 383                                 try {
 384                                         profile.addField(fieldName.trim()).setValue(fieldValue);
 385                                 } catch (IllegalArgumentException iae1) {
 386                                         logger.log(Level.WARNING, String.format("Duplicate field: %s", fieldName), iae1);
 387                                         return null;
 388                                 }
 389                         }
 390                 }
 391
 392                 /* parse posts. */
 393                 SimpleXML postsXml = soneXml.getNode("posts");
 394                 Set<Post> posts = new HashSet<Post>();
 395                 if (postsXml == null) {
 396                         /* TODO - mark Sone as bad. */
 397                         logger.log(Level.WARNING, String.format("Downloaded Sone %s has no posts!", sone));
 398                 } else {
 399                         for (SimpleXML postXml : postsXml.getNodes("post")) {
 400                                 String postId = postXml.getValue("id", null);
 401                                 String postRecipientId = postXml.getValue("recipient", null);
 402                                 String postTime = postXml.getValue("time", null);
 403                                 String postText = postXml.getValue("text", null);
 404                                 if ((postId == null) || (postTime == null) || (postText == null)) {
 405                                         /* TODO - mark Sone as bad. */
 406                                         logger.log(Level.WARNING, String.format("Downloaded post for Sone %s with missing data! ID: %s, Time: %s, Text: %s", sone, postId, postTime, postText));
 407                                         return null;
 408                                 }
 409                                 try {
 410                                         PostBuilder postBuilder = core.postBuilder();
 411                                         /* TODO - parse time correctly. */
 412                                         postBuilder.withId(postId).from(sone.getId()).withTime(Long.parseLong(postTime)).withText(postText);
 413                                         if ((postRecipientId != null) && (postRecipientId.length() == 43)) {
 414                                                 postBuilder.to(postRecipientId);
 415                                         }
 416                                         posts.add(postBuilder.build());
 417                                 } catch (NumberFormatException nfe1) {
 418                                         /* TODO - mark Sone as bad. */
 419                                         logger.log(Level.WARNING, String.format("Downloaded post for Sone %s with invalid time: %s", sone, postTime));
 420                                         return null;
 421                                 }
 422                         }
 423                 }
 424
 425                 /* parse replies. */
 426                 SimpleXML repliesXml = soneXml.getNode("replies");
 427                 Set<PostReply> replies = new HashSet<PostReply>();
 428                 if (repliesXml == null) {
 429                         /* TODO - mark Sone as bad. */
 430                         logger.log(Level.WARNING, String.format("Downloaded Sone %s has no replies!", sone));
 431                 } else {
 432                         for (SimpleXML replyXml : repliesXml.getNodes("reply")) {
 433                                 String replyId = replyXml.getValue("id", null);
 434                                 String replyPostId = replyXml.getValue("post-id", null);
 435                                 String replyTime = replyXml.getValue("time", null);
 436                                 String replyText = replyXml.getValue("text", null);
 437                                 if ((replyId == null) || (replyPostId == null) || (replyTime == null) || (replyText == null)) {
 438                                         /* TODO - mark Sone as bad. */
 439                                         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));
 440                                         return null;
 441                                 }
 442                                 try {
 443                                         PostReplyBuilder postReplyBuilder = core.postReplyBuilder();
 444                                         /* TODO - parse time correctly. */
 445                                         postReplyBuilder.withId(replyId).from(sone.getId()).to(replyPostId).withTime(Long.parseLong(replyTime)).withText(replyText);
 446                                         replies.add(postReplyBuilder.build());
 447                                 } catch (NumberFormatException nfe1) {
 448                                         /* TODO - mark Sone as bad. */
 449                                         logger.log(Level.WARNING, String.format("Downloaded reply for Sone %s with invalid time: %s", sone, replyTime));
 450                                         return null;
 451                                 }
 452                         }
 453                 }
 454
 455                 /* parse liked post IDs. */
 456                 SimpleXML likePostIdsXml = soneXml.getNode("post-likes");
 457                 Set<String> likedPostIds = new HashSet<String>();
 458                 if (likePostIdsXml == null) {
 459                         /* TODO - mark Sone as bad. */
 460                         logger.log(Level.WARNING, String.format("Downloaded Sone %s has no post likes!", sone));
 461                 } else {
 462                         for (SimpleXML likedPostIdXml : likePostIdsXml.getNodes("post-like")) {
 463                                 String postId = likedPostIdXml.getValue();
 464                                 likedPostIds.add(postId);
 465                         }
 466                 }
 467
 468                 /* parse liked reply IDs. */
 469                 SimpleXML likeReplyIdsXml = soneXml.getNode("reply-likes");
 470                 Set<String> likedReplyIds = new HashSet<String>();
 471                 if (likeReplyIdsXml == null) {
 472                         /* TODO - mark Sone as bad. */
 473                         logger.log(Level.WARNING, String.format("Downloaded Sone %s has no reply likes!", sone));
 474                 } else {
 475                         for (SimpleXML likedReplyIdXml : likeReplyIdsXml.getNodes("reply-like")) {
 476                                 String replyId = likedReplyIdXml.getValue();
 477                                 likedReplyIds.add(replyId);
 478                         }
 479                 }
 480
 481                 /* parse albums. */
 482                 SimpleXML albumsXml = soneXml.getNode("albums");
 483                 Map<String, Image> allImages = new HashMap<String, Image>();
 484                 List<Album> topLevelAlbums = new ArrayList<Album>();
 485                 if (albumsXml != null) {
 486                         for (SimpleXML albumXml : albumsXml.getNodes("album")) {
 487                                 String id = albumXml.getValue("id", null);
 488                                 String parentId = albumXml.getValue("parent", null);
 489                                 String title = albumXml.getValue("title", null);
 490                                 String description = albumXml.getValue("description", "");
 491                                 String albumImageId = albumXml.getValue("album-image", null);
 492                                 if ((id == null) || (title == null)) {
 493                                         logger.log(Level.WARNING, String.format("Downloaded Sone %s contains invalid album!", sone));
 494                                         return null;
 495                                 }
 496                                 Album parent = null;
 497                                 if (parentId != null) {
 498                                         parent = core.getAlbum(parentId);
 499                                         if (parent == null) {
 500                                                 logger.log(Level.WARNING, String.format("Downloaded Sone %s has album with invalid parent!", sone));
 501                                                 return null;
 502                                         }
 503                                 }
 504                                 Album album = core.albumBuilder()
 505                                                 .withId(id)
 506                                                 .by(sone)
 507                                                 .build()
 508                                                 .modify()
 509                                                 .setTitle(title)
 510                                                 .setDescription(description)
 511                                                 .update();
 512                                 if (parent != null) {
 513                                         parent.addAlbum(album);
 514                                 } else {
 515                                         topLevelAlbums.add(album);
 516                                 }
 517                                 SimpleXML imagesXml = albumXml.getNode("images");
 518                                 if (imagesXml != null) {
 519                                         for (SimpleXML imageXml : imagesXml.getNodes("image")) {
 520                                                 String imageId = imageXml.getValue("id", null);
 521                                                 String imageCreationTimeString = imageXml.getValue("creation-time", null);
 522                                                 String imageKey = imageXml.getValue("key", null);
 523                                                 String imageTitle = imageXml.getValue("title", null);
 524                                                 String imageDescription = imageXml.getValue("description", "");
 525                                                 String imageWidthString = imageXml.getValue("width", null);
 526                                                 String imageHeightString = imageXml.getValue("height", null);
 527                                                 if ((imageId == null) || (imageCreationTimeString == null) || (imageKey == null) || (imageTitle == null) || (imageWidthString == null) || (imageHeightString == null)) {
 528                                                         logger.log(Level.WARNING, String.format("Downloaded Sone %s contains invalid images!", sone));
 529                                                         return null;
 530                                                 }
 531                                                 long creationTime = Numbers.safeParseLong(imageCreationTimeString, 0L);
 532                                                 int imageWidth = Numbers.safeParseInteger(imageWidthString, 0);
 533                                                 int imageHeight = Numbers.safeParseInteger(imageHeightString, 0);
 534                                                 if ((imageWidth < 1) || (imageHeight < 1)) {
 535                                                         logger.log(Level.WARNING, String.format("Downloaded Sone %s contains image %s with invalid dimensions (%s, %s)!", sone, imageId, imageWidthString, imageHeightString));
 536                                                         return null;
 537                                                 }
 538                                                 Image image = core.imageBuilder().withId(imageId).build().modify().setSone(sone).setKey(imageKey).setCreationTime(creationTime).update();
 539                                                 image = image.modify().setTitle(imageTitle).setDescription(imageDescription).update();
 540                                                 image = image.modify().setWidth(imageWidth).setHeight(imageHeight).update();
 541                                                 album.addImage(image);
 542                                                 allImages.put(imageId, image);
 543                                         }
 544                                 }
 545                                 album.modify().setAlbumImage(albumImageId).update();
 546                         }
 547                 }
 548
 549                 /* process avatar. */
 550                 if (avatarId != null) {
 551                         profile.setAvatar(allImages.get(avatarId));
 552                 }
 553
 554                 /* okay, apparently everything was parsed correctly. Now import. */
 555                 /* atomic setter operation on the Sone. */
 556                 synchronized (sone) {
 557                         sone.setProfile(profile);
 558                         sone.setPosts(posts);
 559                         sone.setReplies(replies);
 560                         sone.setLikePostIds(likedPostIds);
 561                         sone.setLikeReplyIds(likedReplyIds);
 562                         for (Album album : topLevelAlbums) {
 563                                 sone.getRootAlbum().addAlbum(album);
 564                         }
 565                 }
 566
 567                 return sone;
 568         }
 569
 570         @Override
 571         public Runnable fetchSoneWithUriAction(final Sone sone) {
 572                 return new Runnable() {
 573                         @Override
 574                         public void run() {
 575                                 fetchSone(sone, sone.getRequestUri());
 576                         }
 577                 };
 578         }
 579
 580         @Override
 581         public Runnable fetchSoneAction(final Sone sone) {
 582                 return new Runnable() {
 583                         @Override
 584                         public void run() {
 585                                 fetchSone(sone);
 586                         }
 587                 };
 588         }
 589
 590         /** {@inheritDoc} */
 591         @Override
 592         protected void serviceStop() {
 593                 for (Sone sone : sones) {
 594                         freenetInterface.unregisterUsk(sone);
 595                 }
 596         }
 597
 598 }