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

   1 /*
   2  * Sone - Core.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 com.google.common.base.Optional.fromNullable;
  21 import static com.google.common.base.Preconditions.checkArgument;
  22 import static com.google.common.base.Preconditions.checkNotNull;
  23 import static com.google.common.primitives.Longs.tryParse;
  24 import static java.lang.String.format;
  25 import static java.util.logging.Level.WARNING;
  26 import static net.pterodactylus.sone.data.Sone.toAllAlbums;
  27
  28 import java.util.Collection;
  29 import java.util.HashMap;
  30 import java.util.HashSet;
  31 import java.util.List;
  32 import java.util.Map;
  33 import java.util.Map.Entry;
  34 import java.util.Set;
  35 import java.util.concurrent.ExecutorService;
  36 import java.util.concurrent.Executors;
  37 import java.util.concurrent.ScheduledExecutorService;
  38 import java.util.concurrent.TimeUnit;
  39 import java.util.logging.Level;
  40 import java.util.logging.Logger;
  41
  42 import net.pterodactylus.sone.core.ConfigurationSoneParser.InvalidAlbumFound;
  43 import net.pterodactylus.sone.core.ConfigurationSoneParser.InvalidImageFound;
  44 import net.pterodactylus.sone.core.ConfigurationSoneParser.InvalidParentAlbumFound;
  45 import net.pterodactylus.sone.core.ConfigurationSoneParser.InvalidPostFound;
  46 import net.pterodactylus.sone.core.ConfigurationSoneParser.InvalidPostReplyFound;
  47 import net.pterodactylus.sone.core.Options.DefaultOption;
  48 import net.pterodactylus.sone.core.SoneChangeDetector.PostProcessor;
  49 import net.pterodactylus.sone.core.SoneChangeDetector.PostReplyProcessor;
  50 import net.pterodactylus.sone.core.SoneInserter.SetInsertionDelay;
  51 import net.pterodactylus.sone.core.event.ImageInsertFinishedEvent;
  52 import net.pterodactylus.sone.core.event.MarkPostKnownEvent;
  53 import net.pterodactylus.sone.core.event.MarkPostReplyKnownEvent;
  54 import net.pterodactylus.sone.core.event.MarkSoneKnownEvent;
  55 import net.pterodactylus.sone.core.event.NewPostFoundEvent;
  56 import net.pterodactylus.sone.core.event.NewPostReplyFoundEvent;
  57 import net.pterodactylus.sone.core.event.NewSoneFoundEvent;
  58 import net.pterodactylus.sone.core.event.PostRemovedEvent;
  59 import net.pterodactylus.sone.core.event.PostReplyRemovedEvent;
  60 import net.pterodactylus.sone.core.event.SoneLockedEvent;
  61 import net.pterodactylus.sone.core.event.SoneRemovedEvent;
  62 import net.pterodactylus.sone.core.event.SoneUnlockedEvent;
  63 import net.pterodactylus.sone.data.Album;
  64 import net.pterodactylus.sone.data.Client;
  65 import net.pterodactylus.sone.data.Image;
  66 import net.pterodactylus.sone.data.Post;
  67 import net.pterodactylus.sone.data.PostReply;
  68 import net.pterodactylus.sone.data.Profile;
  69 import net.pterodactylus.sone.data.Profile.Field;
  70 import net.pterodactylus.sone.data.Reply;
  71 import net.pterodactylus.sone.data.Sone;
  72 import net.pterodactylus.sone.data.Sone.ShowCustomAvatars;
  73 import net.pterodactylus.sone.data.Sone.SoneStatus;
  74 import net.pterodactylus.sone.data.SoneImpl;
  75 import net.pterodactylus.sone.data.TemporaryImage;
  76 import net.pterodactylus.sone.database.AlbumBuilder;
  77 import net.pterodactylus.sone.database.Database;
  78 import net.pterodactylus.sone.database.DatabaseException;
  79 import net.pterodactylus.sone.database.ImageBuilder;
  80 import net.pterodactylus.sone.database.PostBuilder;
  81 import net.pterodactylus.sone.database.PostProvider;
  82 import net.pterodactylus.sone.database.PostReplyBuilder;
  83 import net.pterodactylus.sone.database.PostReplyProvider;
  84 import net.pterodactylus.sone.database.SoneBuilder;
  85 import net.pterodactylus.sone.database.SoneProvider;
  86 import net.pterodactylus.sone.fcp.FcpInterface;
  87 import net.pterodactylus.sone.freenet.wot.Identity;
  88 import net.pterodactylus.sone.freenet.wot.IdentityManager;
  89 import net.pterodactylus.sone.freenet.wot.OwnIdentity;
  90 import net.pterodactylus.sone.freenet.wot.event.IdentityAddedEvent;
  91 import net.pterodactylus.sone.freenet.wot.event.IdentityRemovedEvent;
  92 import net.pterodactylus.sone.freenet.wot.event.IdentityUpdatedEvent;
  93 import net.pterodactylus.sone.freenet.wot.event.OwnIdentityAddedEvent;
  94 import net.pterodactylus.sone.freenet.wot.event.OwnIdentityRemovedEvent;
  95 import net.pterodactylus.sone.main.SonePlugin;
  96 import net.pterodactylus.sone.utils.IntegerRangePredicate;
  97 import net.pterodactylus.util.config.Configuration;
  98 import net.pterodactylus.util.config.ConfigurationException;
  99 import net.pterodactylus.util.logging.Logging;
 100 import net.pterodactylus.util.number.Numbers;
 101 import net.pterodactylus.util.service.AbstractService;
 102 import net.pterodactylus.util.thread.NamedThreadFactory;
 103
 104 import com.google.common.annotations.VisibleForTesting;
 105 import com.google.common.base.Optional;
 106 import com.google.common.base.Predicates;
 107 import com.google.common.collect.FluentIterable;
 108 import com.google.common.collect.HashMultimap;
 109 import com.google.common.collect.Multimap;
 110 import com.google.common.collect.Multimaps;
 111 import com.google.common.eventbus.EventBus;
 112 import com.google.common.eventbus.Subscribe;
 113 import com.google.inject.Inject;
 114 import com.google.inject.Singleton;
 115
 116 /**
 117  * The Sone core.
 118  *
 119  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
 120  */
 121 @Singleton
 122 public class Core extends AbstractService implements SoneProvider, PostProvider, PostReplyProvider {
 123
 124         /** The logger. */
 125         private static final Logger logger = Logging.getLogger(Core.class);
 126
 127         /** The start time. */
 128         private final long startupTime = System.currentTimeMillis();
 129
 130         /** The options. */
 131         private final Options options = new Options();
 132
 133         /** The preferences. */
 134         private final Preferences preferences = new Preferences(options);
 135
 136         /** The event bus. */
 137         private final EventBus eventBus;
 138
 139         /** The configuration. */
 140         private final Configuration configuration;
 141
 142         /** Whether we’re currently saving the configuration. */
 143         private boolean storingConfiguration = false;
 144
 145         /** The identity manager. */
 146         private final IdentityManager identityManager;
 147
 148         /** Interface to freenet. */
 149         private final FreenetInterface freenetInterface;
 150
 151         /** The Sone downloader. */
 152         private final SoneDownloader soneDownloader;
 153
 154         /** The image inserter. */
 155         private final ImageInserter imageInserter;
 156
 157         /** Sone downloader thread-pool. */
 158         private final ExecutorService soneDownloaders = Executors.newFixedThreadPool(10, new NamedThreadFactory("Sone Downloader %2$d"));
 159
 160         /** The update checker. */
 161         private final UpdateChecker updateChecker;
 162
 163         /** The trust updater. */
 164         private final WebOfTrustUpdater webOfTrustUpdater;
 165
 166         /** The FCP interface. */
 167         private volatile FcpInterface fcpInterface;
 168
 169         /** The times Sones were followed. */
 170         private final Map<String, Long> soneFollowingTimes = new HashMap<String, Long>();
 171
 172         /** Locked local Sones. */
 173         /* synchronize on itself. */
 174         private final Set<Sone> lockedSones = new HashSet<Sone>();
 175
 176         /** Sone inserters. */
 177         /* synchronize access on this on sones. */
 178         private final Map<Sone, SoneInserter> soneInserters = new HashMap<Sone, SoneInserter>();
 179
 180         /** Sone rescuers. */
 181         /* synchronize access on this on sones. */
 182         private final Map<Sone, SoneRescuer> soneRescuers = new HashMap<Sone, SoneRescuer>();
 183
 184         /** All known Sones. */
 185         private final Set<String> knownSones = new HashSet<String>();
 186
 187         /** The post database. */
 188         private final Database database;
 189
 190         /** All bookmarked posts. */
 191         /* synchronize access on itself. */
 192         private final Set<String> bookmarkedPosts = new HashSet<String>();
 193
 194         /** Trusted identities, sorted by own identities. */
 195         private final Multimap<OwnIdentity, Identity> trustedIdentities = Multimaps.synchronizedSetMultimap(HashMultimap.<OwnIdentity, Identity>create());
 196
 197         /** All temporary images. */
 198         private final Map<String, TemporaryImage> temporaryImages = new HashMap<String, TemporaryImage>();
 199
 200         /** Ticker for threads that mark own elements as known. */
 201         private final ScheduledExecutorService localElementTicker = Executors.newScheduledThreadPool(1);
 202
 203         /** The time the configuration was last touched. */
 204         private volatile long lastConfigurationUpdate;
 205
 206         /**
 207          * Creates a new core.
 208          *
 209          * @param configuration
 210          *            The configuration of the core
 211          * @param freenetInterface
 212          *            The freenet interface
 213          * @param identityManager
 214          *            The identity manager
 215          * @param webOfTrustUpdater
 216          *            The WebOfTrust updater
 217          * @param eventBus
 218          *            The event bus
 219          * @param database
 220          *            The database
 221          */
 222         @Inject
 223         public Core(Configuration configuration, FreenetInterface freenetInterface, IdentityManager identityManager, WebOfTrustUpdater webOfTrustUpdater, EventBus eventBus, Database database) {
 224                 super("Sone Core");
 225                 this.configuration = configuration;
 226                 this.freenetInterface = freenetInterface;
 227                 this.identityManager = identityManager;
 228                 this.soneDownloader = new SoneDownloaderImpl(this, freenetInterface);
 229                 this.imageInserter = new ImageInserter(freenetInterface, freenetInterface.new InsertTokenSupplier());
 230                 this.updateChecker = new UpdateChecker(eventBus, freenetInterface);
 231                 this.webOfTrustUpdater = webOfTrustUpdater;
 232                 this.eventBus = eventBus;
 233                 this.database = database;
 234         }
 235
 236         @VisibleForTesting
 237         protected Core(Configuration configuration, FreenetInterface freenetInterface, IdentityManager identityManager, SoneDownloader soneDownloader, ImageInserter imageInserter, UpdateChecker updateChecker, WebOfTrustUpdater webOfTrustUpdater, EventBus eventBus, Database database) {
 238                 super("Sone Core");
 239                 this.configuration = configuration;
 240                 this.freenetInterface = freenetInterface;
 241                 this.identityManager = identityManager;
 242                 this.soneDownloader = soneDownloader;
 243                 this.imageInserter = imageInserter;
 244                 this.updateChecker = updateChecker;
 245                 this.webOfTrustUpdater = webOfTrustUpdater;
 246                 this.eventBus = eventBus;
 247                 this.database = database;
 248         }
 249
 250         //
 251         // ACCESSORS
 252         //
 253
 254         /**
 255          * Returns the time Sone was started.
 256          *
 257          * @return The startup time (in milliseconds since Jan 1, 1970 UTC)
 258          */
 259         public long getStartupTime() {
 260                 return startupTime;
 261         }
 262
 263         /**
 264          * Returns the options used by the core.
 265          *
 266          * @return The options of the core
 267          */
 268         public Preferences getPreferences() {
 269                 return preferences;
 270         }
 271
 272         /**
 273          * Returns the identity manager used by the core.
 274          *
 275          * @return The identity manager
 276          */
 277         public IdentityManager getIdentityManager() {
 278                 return identityManager;
 279         }
 280
 281         /**
 282          * Returns the update checker.
 283          *
 284          * @return The update checker
 285          */
 286         public UpdateChecker getUpdateChecker() {
 287                 return updateChecker;
 288         }
 289
 290         /**
 291          * Sets the FCP interface to use.
 292          *
 293          * @param fcpInterface
 294          *            The FCP interface to use
 295          */
 296         public void setFcpInterface(FcpInterface fcpInterface) {
 297                 this.fcpInterface = fcpInterface;
 298         }
 299
 300         /**
 301          * Returns the Sone rescuer for the given local Sone.
 302          *
 303          * @param sone
 304          *            The local Sone to get the rescuer for
 305          * @return The Sone rescuer for the given Sone
 306          */
 307         public SoneRescuer getSoneRescuer(Sone sone) {
 308                 checkNotNull(sone, "sone must not be null");
 309                 checkArgument(sone.isLocal(), "sone must be local");
 310                 synchronized (soneRescuers) {
 311                         SoneRescuer soneRescuer = soneRescuers.get(sone);
 312                         if (soneRescuer == null) {
 313                                 soneRescuer = new SoneRescuer(this, soneDownloader, sone);
 314                                 soneRescuers.put(sone, soneRescuer);
 315                                 soneRescuer.start();
 316                         }
 317                         return soneRescuer;
 318                 }
 319         }
 320
 321         /**
 322          * Returns whether the given Sone is currently locked.
 323          *
 324          * @param sone
 325          *            The sone to check
 326          * @return {@code true} if the Sone is locked, {@code false} if it is not
 327          */
 328         public boolean isLocked(Sone sone) {
 329                 synchronized (lockedSones) {
 330                         return lockedSones.contains(sone);
 331                 }
 332         }
 333
 334         public SoneBuilder soneBuilder() {
 335                 return database.newSoneBuilder();
 336         }
 337
 338         /**
 339          * {@inheritDocs}
 340          */
 341         @Override
 342         public Collection<Sone> getSones() {
 343                 return database.getSones();
 344         }
 345
 346         /**
 347          * Returns the Sone with the given ID, regardless whether it’s local or
 348          * remote.
 349          *
 350          * @param id
 351          *            The ID of the Sone to get
 352          * @return The Sone with the given ID, or {@code null} if there is no such
 353          *         Sone
 354          */
 355         @Override
 356         public Optional<Sone> getSone(String id) {
 357                 return database.getSone(id);
 358         }
 359
 360         /**
 361          * {@inheritDocs}
 362          */
 363         @Override
 364         public Collection<Sone> getLocalSones() {
 365                 return database.getLocalSones();
 366         }
 367
 368         /**
 369          * Returns the local Sone with the given ID, optionally creating a new Sone.
 370          *
 371          * @param id
 372          *            The ID of the Sone
 373          * @return The Sone with the given ID, or {@code null}
 374          */
 375         public Sone getLocalSone(String id) {
 376                 Optional<Sone> sone = database.getSone(id);
 377                 if (sone.isPresent() && sone.get().isLocal()) {
 378                         return sone.get();
 379                 }
 380                 return null;
 381         }
 382
 383         /**
 384          * {@inheritDocs}
 385          */
 386         @Override
 387         public Collection<Sone> getRemoteSones() {
 388                 return database.getRemoteSones();
 389         }
 390
 391         /**
 392          * Returns the remote Sone with the given ID.
 393          *
 394          *
 395          * @param id
 396          *            The ID of the remote Sone to get
 397          * @return The Sone with the given ID
 398          */
 399         public Sone getRemoteSone(String id) {
 400                 return database.getSone(id).orNull();
 401         }
 402
 403         /**
 404          * Returns whether the given Sone has been modified.
 405          *
 406          * @param sone
 407          *            The Sone to check for modifications
 408          * @return {@code true} if a modification has been detected in the Sone,
 409          *         {@code false} otherwise
 410          */
 411         public boolean isModifiedSone(Sone sone) {
 412                 return soneInserters.containsKey(sone) && soneInserters.get(sone).isModified();
 413         }
 414
 415         /**
 416          * Returns the time when the given was first followed by any local Sone.
 417          *
 418          * @param sone
 419          *            The Sone to get the time for
 420          * @return The time (in milliseconds since Jan 1, 1970) the Sone has first
 421          *         been followed, or {@link Long#MAX_VALUE}
 422          */
 423         public long getSoneFollowingTime(Sone sone) {
 424                 synchronized (soneFollowingTimes) {
 425                         return Optional.fromNullable(soneFollowingTimes.get(sone.getId())).or(Long.MAX_VALUE);
 426                 }
 427         }
 428
 429         /**
 430          * Returns a post builder.
 431          *
 432          * @return A new post builder
 433          */
 434         public PostBuilder postBuilder() {
 435                 return database.newPostBuilder();
 436         }
 437
 438         /**
 439          * {@inheritDoc}
 440          */
 441         @Override
 442         public Optional<Post> getPost(String postId) {
 443                 return database.getPost(postId);
 444         }
 445
 446         /**
 447          * {@inheritDocs}
 448          */
 449         @Override
 450         public Collection<Post> getPosts(String soneId) {
 451                 return database.getPosts(soneId);
 452         }
 453
 454         /**
 455          * {@inheritDoc}
 456          */
 457         @Override
 458         public Collection<Post> getDirectedPosts(final String recipientId) {
 459                 checkNotNull(recipientId, "recipient must not be null");
 460                 return database.getDirectedPosts(recipientId);
 461         }
 462
 463         /**
 464          * Returns a post reply builder.
 465          *
 466          * @return A new post reply builder
 467          */
 468         public PostReplyBuilder postReplyBuilder() {
 469                 return database.newPostReplyBuilder();
 470         }
 471
 472         /**
 473          * {@inheritDoc}
 474          */
 475         @Override
 476         public Optional<PostReply> getPostReply(String replyId) {
 477                 return database.getPostReply(replyId);
 478         }
 479
 480         /**
 481          * {@inheritDoc}
 482          */
 483         @Override
 484         public List<PostReply> getReplies(final String postId) {
 485                 return database.getReplies(postId);
 486         }
 487
 488         /**
 489          * Returns all Sones that have liked the given post.
 490          *
 491          * @param post
 492          *            The post to get the liking Sones for
 493          * @return The Sones that like the given post
 494          */
 495         public Set<Sone> getLikes(Post post) {
 496                 Set<Sone> sones = new HashSet<Sone>();
 497                 for (Sone sone : getSones()) {
 498                         if (sone.getLikedPostIds().contains(post.getId())) {
 499                                 sones.add(sone);
 500                         }
 501                 }
 502                 return sones;
 503         }
 504
 505         /**
 506          * Returns all Sones that have liked the given reply.
 507          *
 508          * @param reply
 509          *            The reply to get the liking Sones for
 510          * @return The Sones that like the given reply
 511          */
 512         public Set<Sone> getLikes(PostReply reply) {
 513                 Set<Sone> sones = new HashSet<Sone>();
 514                 for (Sone sone : getSones()) {
 515                         if (sone.getLikedReplyIds().contains(reply.getId())) {
 516                                 sones.add(sone);
 517                         }
 518                 }
 519                 return sones;
 520         }
 521
 522         /**
 523          * Returns whether the given post is bookmarked.
 524          *
 525          * @param post
 526          *            The post to check
 527          * @return {@code true} if the given post is bookmarked, {@code false}
 528          *         otherwise
 529          */
 530         public boolean isBookmarked(Post post) {
 531                 return isPostBookmarked(post.getId());
 532         }
 533
 534         /**
 535          * Returns whether the post with the given ID is bookmarked.
 536          *
 537          * @param id
 538          *            The ID of the post to check
 539          * @return {@code true} if the post with the given ID is bookmarked,
 540          *         {@code false} otherwise
 541          */
 542         public boolean isPostBookmarked(String id) {
 543                 synchronized (bookmarkedPosts) {
 544                         return bookmarkedPosts.contains(id);
 545                 }
 546         }
 547
 548         /**
 549          * Returns all currently known bookmarked posts.
 550          *
 551          * @return All bookmarked posts
 552          */
 553         public Set<Post> getBookmarkedPosts() {
 554                 Set<Post> posts = new HashSet<Post>();
 555                 synchronized (bookmarkedPosts) {
 556                         for (String bookmarkedPostId : bookmarkedPosts) {
 557                                 Optional<Post> post = getPost(bookmarkedPostId);
 558                                 if (post.isPresent()) {
 559                                         posts.add(post.get());
 560                                 }
 561                         }
 562                 }
 563                 return posts;
 564         }
 565
 566         public AlbumBuilder albumBuilder() {
 567                 return database.newAlbumBuilder();
 568         }
 569
 570         /**
 571          * Returns the album with the given ID, optionally creating a new album if
 572          * an album with the given ID can not be found.
 573          *
 574          * @param albumId
 575          *            The ID of the album
 576          * @return The album with the given ID, or {@code null} if no album with the
 577          *         given ID exists
 578          */
 579         public Album getAlbum(String albumId) {
 580                 return database.getAlbum(albumId).orNull();
 581         }
 582
 583         public ImageBuilder imageBuilder() {
 584                 return database.newImageBuilder();
 585         }
 586
 587         /**
 588          * Returns the image with the given ID, creating it if necessary.
 589          *
 590          * @param imageId
 591          *            The ID of the image
 592          * @return The image with the given ID
 593          */
 594         public Image getImage(String imageId) {
 595                 return getImage(imageId, true);
 596         }
 597
 598         /**
 599          * Returns the image with the given ID, optionally creating it if it does
 600          * not exist.
 601          *
 602          * @param imageId
 603          *            The ID of the image
 604          * @param create
 605          *            {@code true} to create an image if none exists with the given
 606          *            ID
 607          * @return The image with the given ID, or {@code null} if none exists and
 608          *         none was created
 609          */
 610         public Image getImage(String imageId, boolean create) {
 611                 Optional<Image> image = database.getImage(imageId);
 612                 if (image.isPresent()) {
 613                         return image.get();
 614                 }
 615                 if (!create) {
 616                         return null;
 617                 }
 618                 Image newImage = database.newImageBuilder().withId(imageId).build();
 619                 database.storeImage(newImage);
 620                 return newImage;
 621         }
 622
 623         /**
 624          * Returns the temporary image with the given ID.
 625          *
 626          * @param imageId
 627          *            The ID of the temporary image
 628          * @return The temporary image, or {@code null} if there is no temporary
 629          *         image with the given ID
 630          */
 631         public TemporaryImage getTemporaryImage(String imageId) {
 632                 synchronized (temporaryImages) {
 633                         return temporaryImages.get(imageId);
 634                 }
 635         }
 636
 637         //
 638         // ACTIONS
 639         //
 640
 641         /**
 642          * Locks the given Sone. A locked Sone will not be inserted by
 643          * {@link SoneInserter} until it is {@link #unlockSone(Sone) unlocked}
 644          * again.
 645          *
 646          * @param sone
 647          *            The sone to lock
 648          */
 649         public void lockSone(Sone sone) {
 650                 synchronized (lockedSones) {
 651                         if (lockedSones.add(sone)) {
 652                                 eventBus.post(new SoneLockedEvent(sone));
 653                         }
 654                 }
 655         }
 656
 657         /**
 658          * Unlocks the given Sone.
 659          *
 660          * @see #lockSone(Sone)
 661          * @param sone
 662          *            The sone to unlock
 663          */
 664         public void unlockSone(Sone sone) {
 665                 synchronized (lockedSones) {
 666                         if (lockedSones.remove(sone)) {
 667                                 eventBus.post(new SoneUnlockedEvent(sone));
 668                         }
 669                 }
 670         }
 671
 672         /**
 673          * Adds a local Sone from the given own identity.
 674          *
 675          * @param ownIdentity
 676          *            The own identity to create a Sone from
 677          * @return The added (or already existing) Sone
 678          */
 679         public Sone addLocalSone(OwnIdentity ownIdentity) {
 680                 if (ownIdentity == null) {
 681                         logger.log(Level.WARNING, "Given OwnIdentity is null!");
 682                         return null;
 683                 }
 684                 logger.info(String.format("Adding Sone from OwnIdentity: %s", ownIdentity));
 685                 Sone sone = database.newSoneBuilder().local().from(ownIdentity).build();
 686                 sone.setLatestEdition(Numbers.safeParseLong(ownIdentity.getProperty("Sone.LatestEdition"), 0L));
 687                 sone.setClient(new Client("Sone", SonePlugin.VERSION.toString()));
 688                 sone.setKnown(true);
 689                 /* TODO - load posts ’n stuff */
 690                 SoneInserter soneInserter = new SoneInserter(this, eventBus, freenetInterface, ownIdentity.getId());
 691                 synchronized (soneInserters) {
 692                         soneInserters.put(sone, soneInserter);
 693                 }
 694                 loadSone(sone);
 695                 sone.setStatus(SoneStatus.idle);
 696                 soneInserter.start();
 697                 return sone;
 698         }
 699
 700         /**
 701          * Creates a new Sone for the given own identity.
 702          *
 703          * @param ownIdentity
 704          *            The own identity to create a Sone for
 705          * @return The created Sone
 706          */
 707         public Sone createSone(OwnIdentity ownIdentity) {
 708                 if (!webOfTrustUpdater.addContextWait(ownIdentity, "Sone")) {
 709                         logger.log(Level.SEVERE, String.format("Could not add “Sone” context to own identity: %s", ownIdentity));
 710                         return null;
 711                 }
 712                 Sone sone = addLocalSone(ownIdentity);
 713
 714                 followSone(sone, "nwa8lHa271k2QvJ8aa0Ov7IHAV-DFOCFgmDt3X6BpCI");
 715                 touchConfiguration();
 716                 return sone;
 717         }
 718
 719         /**
 720          * Adds the Sone of the given identity.
 721          *
 722          * @param identity
 723          *            The identity whose Sone to add
 724          * @return The added or already existing Sone
 725          */
 726         public Sone addRemoteSone(Identity identity) {
 727                 if (identity == null) {
 728                         logger.log(Level.WARNING, "Given Identity is null!");
 729                         return null;
 730                 }
 731                 final Long latestEdition = tryParse(fromNullable(
 732                                 identity.getProperty("Sone.LatestEdition")).or("0"));
 733                 Optional<Sone> existingSone = getSone(identity.getId());
 734                 if (existingSone.isPresent() && existingSone.get().isLocal()) {
 735                         return existingSone.get();
 736                 }
 737                 boolean newSone = !existingSone.isPresent();
 738                 Sone sone = !newSone ? existingSone.get() : database.newSoneBuilder().from(identity).build();
 739                 sone.setRequestUri(SoneUri.create(identity.getRequestUri()));
 740                 sone.setLatestEdition(latestEdition);
 741                 if (newSone) {
 742                         synchronized (knownSones) {
 743                                 newSone = !knownSones.contains(sone.getId());
 744                         }
 745                         sone.setKnown(!newSone);
 746                         if (newSone) {
 747                                 eventBus.post(new NewSoneFoundEvent(sone));
 748                                 for (Sone localSone : getLocalSones()) {
 749                                         if (localSone.getOptions().isAutoFollow()) {
 750                                                 followSone(localSone, sone.getId());
 751                                         }
 752                                 }
 753                         }
 754                 }
 755                 database.storeSone(sone);
 756                 soneDownloader.addSone(sone);
 757                 soneDownloaders.execute(soneDownloader.fetchSoneWithUriAction(sone));
 758                 return sone;
 759         }
 760
 761         /**
 762          * Lets the given local Sone follow the Sone with the given ID.
 763          *
 764          * @param sone
 765          *            The local Sone that should follow another Sone
 766          * @param soneId
 767          *            The ID of the Sone to follow
 768          */
 769         public void followSone(Sone sone, String soneId) {
 770                 checkNotNull(sone, "sone must not be null");
 771                 checkNotNull(soneId, "soneId must not be null");
 772                 sone.addFriend(soneId);
 773                 synchronized (soneFollowingTimes) {
 774                         if (!soneFollowingTimes.containsKey(soneId)) {
 775                                 long now = System.currentTimeMillis();
 776                                 soneFollowingTimes.put(soneId, now);
 777                                 Optional<Sone> followedSone = getSone(soneId);
 778                                 if (!followedSone.isPresent()) {
 779                                         return;
 780                                 }
 781                                 for (Post post : followedSone.get().getPosts()) {
 782                                         if (post.getTime() < now) {
 783                                                 markPostKnown(post);
 784                                         }
 785                                 }
 786                                 for (PostReply reply : followedSone.get().getReplies()) {
 787                                         if (reply.getTime() < now) {
 788                                                 markReplyKnown(reply);
 789                                         }
 790                                 }
 791                         }
 792                 }
 793                 touchConfiguration();
 794         }
 795
 796         /**
 797          * Lets the given local Sone unfollow the Sone with the given ID.
 798          *
 799          * @param sone
 800          *            The local Sone that should unfollow another Sone
 801          * @param soneId
 802          *            The ID of the Sone being unfollowed
 803          */
 804         public void unfollowSone(Sone sone, String soneId) {
 805                 checkNotNull(sone, "sone must not be null");
 806                 checkNotNull(soneId, "soneId must not be null");
 807                 sone.removeFriend(soneId);
 808                 boolean unfollowedSoneStillFollowed = false;
 809                 for (Sone localSone : getLocalSones()) {
 810                         unfollowedSoneStillFollowed |= localSone.hasFriend(soneId);
 811                 }
 812                 if (!unfollowedSoneStillFollowed) {
 813                         synchronized (soneFollowingTimes) {
 814                                 soneFollowingTimes.remove(soneId);
 815                         }
 816                 }
 817                 touchConfiguration();
 818         }
 819
 820         /**
 821          * Sets the trust value of the given origin Sone for the target Sone.
 822          *
 823          * @param origin
 824          *            The origin Sone
 825          * @param target
 826          *            The target Sone
 827          * @param trustValue
 828          *            The trust value (from {@code -100} to {@code 100})
 829          */
 830         public void setTrust(Sone origin, Sone target, int trustValue) {
 831                 checkNotNull(origin, "origin must not be null");
 832                 checkArgument(origin.getIdentity() instanceof OwnIdentity, "origin must be a local Sone");
 833                 checkNotNull(target, "target must not be null");
 834                 checkArgument((trustValue >= -100) && (trustValue <= 100), "trustValue must be within [-100, 100]");
 835                 webOfTrustUpdater.setTrust((OwnIdentity) origin.getIdentity(), target.getIdentity(), trustValue, preferences.getTrustComment());
 836         }
 837
 838         /**
 839          * Removes any trust assignment for the given target Sone.
 840          *
 841          * @param origin
 842          *            The trust origin
 843          * @param target
 844          *            The trust target
 845          */
 846         public void removeTrust(Sone origin, Sone target) {
 847                 checkNotNull(origin, "origin must not be null");
 848                 checkNotNull(target, "target must not be null");
 849                 checkArgument(origin.getIdentity() instanceof OwnIdentity, "origin must be a local Sone");
 850                 webOfTrustUpdater.setTrust((OwnIdentity) origin.getIdentity(), target.getIdentity(), null, null);
 851         }
 852
 853         /**
 854          * Assigns the configured positive trust value for the given target.
 855          *
 856          * @param origin
 857          *            The trust origin
 858          * @param target
 859          *            The trust target
 860          */
 861         public void trustSone(Sone origin, Sone target) {
 862                 setTrust(origin, target, preferences.getPositiveTrust());
 863         }
 864
 865         /**
 866          * Assigns the configured negative trust value for the given target.
 867          *
 868          * @param origin
 869          *            The trust origin
 870          * @param target
 871          *            The trust target
 872          */
 873         public void distrustSone(Sone origin, Sone target) {
 874                 setTrust(origin, target, preferences.getNegativeTrust());
 875         }
 876
 877         /**
 878          * Removes the trust assignment for the given target.
 879          *
 880          * @param origin
 881          *            The trust origin
 882          * @param target
 883          *            The trust target
 884          */
 885         public void untrustSone(Sone origin, Sone target) {
 886                 removeTrust(origin, target);
 887         }
 888
 889         /**
 890          * Updates the stored Sone with the given Sone.
 891          *
 892          * @param sone
 893          *            The updated Sone
 894          */
 895         public void updateSone(Sone sone) {
 896                 updateSone(sone, false);
 897         }
 898
 899         /**
 900          * Updates the stored Sone with the given Sone. If {@code soneRescueMode} is
 901          * {@code true}, an older Sone than the current Sone can be given to restore
 902          * an old state.
 903          *
 904          * @param sone
 905          *            The Sone to update
 906          * @param soneRescueMode
 907          *            {@code true} if the stored Sone should be updated regardless
 908          *            of the age of the given Sone
 909          */
 910         public void updateSone(final Sone sone, boolean soneRescueMode) {
 911                 Optional<Sone> storedSone = getSone(sone.getId());
 912                 if (storedSone.isPresent()) {
 913                         if (!soneRescueMode && !(sone.getTime() > storedSone.get().getTime())) {
 914                                 logger.log(Level.FINE, String.format("Downloaded Sone %s is not newer than stored Sone %s.", sone, storedSone));
 915                                 return;
 916                         }
 917                         /* find removed posts. */
 918                         SoneChangeDetector soneChangeDetector = new SoneChangeDetector(storedSone.get());
 919                         soneChangeDetector.onNewPosts(new PostProcessor() {
 920                                 @Override
 921                                 public void processPost(Post post) {
 922                                         if (post.getTime() < getSoneFollowingTime(sone)) {
 923                                                 post.setKnown(true);
 924                                         } else if (!post.isKnown()) {
 925                                                 eventBus.post(new NewPostFoundEvent(post));
 926                                         }
 927                                 }
 928                         });
 929                         soneChangeDetector.onRemovedPosts(new PostProcessor() {
 930                                 @Override
 931                                 public void processPost(Post post) {
 932                                         eventBus.post(new PostRemovedEvent(post));
 933                                 }
 934                         });
 935                         soneChangeDetector.onNewPostReplies(new PostReplyProcessor() {
 936                                 @Override
 937                                 public void processPostReply(PostReply postReply) {
 938                                         if (postReply.getTime() < getSoneFollowingTime(sone)) {
 939                                                 postReply.setKnown(true);
 940                                         } else if (!postReply.isKnown()) {
 941                                                 eventBus.post(new NewPostReplyFoundEvent(postReply));
 942                                         }
 943                                 }
 944                         });
 945                         soneChangeDetector.onRemovedPostReplies(new PostReplyProcessor() {
 946                                 @Override
 947                                 public void processPostReply(PostReply postReply) {
 948                                         eventBus.post(new PostReplyRemovedEvent(postReply));
 949                                 }
 950                         });
 951                         soneChangeDetector.detectChanges(sone);
 952                         database.storeSone(sone);
 953                         sone.setOptions(storedSone.get().getOptions());
 954                         sone.setKnown(storedSone.get().isKnown());
 955                         sone.setStatus((sone.getTime() == 0) ? SoneStatus.unknown : SoneStatus.idle);
 956                         if (sone.isLocal()) {
 957                                 touchConfiguration();
 958                         }
 959                 }
 960         }
 961
 962         /**
 963          * Deletes the given Sone. This will remove the Sone from the
 964          * {@link #getLocalSones() local Sones}, stop its {@link SoneInserter} and
 965          * remove the context from its identity.
 966          *
 967          * @param sone
 968          *            The Sone to delete
 969          */
 970         public void deleteSone(Sone sone) {
 971                 if (!(sone.getIdentity() instanceof OwnIdentity)) {
 972                         logger.log(Level.WARNING, String.format("Tried to delete Sone of non-own identity: %s", sone));
 973                         return;
 974                 }
 975                 if (!getLocalSones().contains(sone)) {
 976                         logger.log(Level.WARNING, String.format("Tried to delete non-local Sone: %s", sone));
 977                         return;
 978                 }
 979                 // FIXME – implement in database
 980 //              sones.remove(sone.getId());
 981                 SoneInserter soneInserter = soneInserters.remove(sone);
 982                 soneInserter.stop();
 983                 webOfTrustUpdater.removeContext((OwnIdentity) sone.getIdentity(), "Sone");
 984                 webOfTrustUpdater.removeProperty((OwnIdentity) sone.getIdentity(), "Sone.LatestEdition");
 985                 try {
 986                         configuration.getLongValue("Sone/" + sone.getId() + "/Time").setValue(null);
 987                 } catch (ConfigurationException ce1) {
 988                         logger.log(Level.WARNING, "Could not remove Sone from configuration!", ce1);
 989                 }
 990         }
 991
 992         /**
 993          * Marks the given Sone as known. If the Sone was not {@link Post#isKnown()
 994          * known} before, a {@link MarkSoneKnownEvent} is fired.
 995          *
 996          * @param sone
 997          *            The Sone to mark as known
 998          */
 999         public void markSoneKnown(Sone sone) {
1000                 if (!sone.isKnown()) {
1001                         sone.setKnown(true);
1002                         synchronized (knownSones) {
1003                                 knownSones.add(sone.getId());
1004                         }
1005                         eventBus.post(new MarkSoneKnownEvent(sone));
1006                         touchConfiguration();
1007                 }
1008         }
1009
1010         /**
1011          * Loads and updates the given Sone from the configuration. If any error is
1012          * encountered, loading is aborted and the given Sone is not changed.
1013          *
1014          * @param sone
1015          *            The Sone to load and update
1016          */
1017         public void loadSone(Sone sone) {
1018                 if (!sone.isLocal()) {
1019                         logger.log(Level.FINE, String.format("Tried to load non-local Sone: %s", sone));
1020                         return;
1021                 }
1022                 logger.info(String.format("Loading local Sone: %s", sone));
1023
1024                 /* load Sone. */
1025                 String sonePrefix = "Sone/" + sone.getId();
1026                 Long soneTime = configuration.getLongValue(sonePrefix + "/Time").getValue(null);
1027                 if (soneTime == null) {
1028                         logger.log(Level.INFO, "Could not load Sone because no Sone has been saved.");
1029                         return;
1030                 }
1031                 String lastInsertFingerprint = configuration.getStringValue(sonePrefix + "/LastInsertFingerprint").getValue("");
1032
1033                 /* load profile. */
1034                 ConfigurationSoneParser configurationSoneParser = new ConfigurationSoneParser(configuration, sone);
1035                 Profile profile = configurationSoneParser.parseProfile();
1036
1037                 /* load posts. */
1038                 Collection<Post> posts;
1039                 try {
1040                         posts = configurationSoneParser.parsePosts(database);
1041                 } catch (InvalidPostFound ipf) {
1042                         logger.log(Level.WARNING, "Invalid post found, aborting load!");
1043                         return;
1044                 }
1045
1046                 /* load replies. */
1047                 Collection<PostReply> replies;
1048                 try {
1049                         replies = configurationSoneParser.parsePostReplies(database);
1050                 } catch (InvalidPostReplyFound iprf) {
1051                         logger.log(Level.WARNING, "Invalid reply found, aborting load!");
1052                         return;
1053                 }
1054
1055                 /* load post likes. */
1056                 Set<String> likedPostIds =
1057                                 configurationSoneParser.parseLikedPostIds();
1058
1059                 /* load reply likes. */
1060                 Set<String> likedReplyIds =
1061                                 configurationSoneParser.parseLikedPostReplyIds();
1062
1063                 /* load friends. */
1064                 Set<String> friends = configurationSoneParser.parseFriends();
1065
1066                 /* load albums. */
1067                 List<Album> topLevelAlbums;
1068                 try {
1069                         topLevelAlbums =
1070                                         configurationSoneParser.parseTopLevelAlbums(database);
1071                 } catch (InvalidAlbumFound iaf) {
1072                         logger.log(Level.WARNING, "Invalid album found, aborting load!");
1073                         return;
1074                 } catch (InvalidParentAlbumFound ipaf) {
1075                         logger.log(Level.WARNING, format("Invalid parent album ID: %s",
1076                                         ipaf.getAlbumParentId()));
1077                         return;
1078                 }
1079
1080                 /* load images. */
1081                 try {
1082                         configurationSoneParser.parseImages(database);
1083                 } catch (InvalidImageFound iif) {
1084                         logger.log(WARNING, "Invalid image found, aborting load!");
1085                         return;
1086                 } catch (InvalidParentAlbumFound ipaf) {
1087                         logger.log(Level.WARNING,
1088                                         format("Invalid album image (%s) encountered, aborting load!",
1089                                                         ipaf.getAlbumParentId()));
1090                         return;
1091                 }
1092
1093                 /* load avatar. */
1094                 String avatarId = configuration.getStringValue(sonePrefix + "/Profile/Avatar").getValue(null);
1095                 if (avatarId != null) {
1096                         final Map<String, Image> images =
1097                                         configurationSoneParser.getImages();
1098                         profile.setAvatar(images.get(avatarId));
1099                 }
1100
1101                 /* load options. */
1102                 sone.getOptions().setAutoFollow(configuration.getBooleanValue(sonePrefix + "/Options/AutoFollow").getValue(null));
1103                 sone.getOptions().setSoneInsertNotificationEnabled(configuration.getBooleanValue(sonePrefix + "/Options/EnableSoneInsertNotifications").getValue(null));
1104                 sone.getOptions().setShowNewSoneNotifications(configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewSones").getValue(null));
1105                 sone.getOptions().setShowNewPostNotifications(configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewPosts").getValue(null));
1106                 sone.getOptions().setShowNewReplyNotifications(configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewReplies").getValue(null));
1107                 sone.getOptions().setShowCustomAvatars(ShowCustomAvatars.valueOf(configuration.getStringValue(sonePrefix + "/Options/ShowCustomAvatars").getValue(ShowCustomAvatars.NEVER.name())));
1108
1109                 /* if we’re still here, Sone was loaded successfully. */
1110                 synchronized (sone) {
1111                         sone.setTime(soneTime);
1112                         sone.setProfile(profile);
1113                         sone.setPosts(posts);
1114                         sone.setReplies(replies);
1115                         sone.setLikePostIds(likedPostIds);
1116                         sone.setLikeReplyIds(likedReplyIds);
1117                         for (String friendId : friends) {
1118                                 followSone(sone, friendId);
1119                         }
1120                         for (Album album : sone.getRootAlbum().getAlbums()) {
1121                                 sone.getRootAlbum().removeAlbum(album);
1122                         }
1123                         for (Album album : topLevelAlbums) {
1124                                 sone.getRootAlbum().addAlbum(album);
1125                         }
1126                         database.storeSone(sone);
1127                         synchronized (soneInserters) {
1128                                 soneInserters.get(sone).setLastInsertFingerprint(lastInsertFingerprint);
1129                         }
1130                 }
1131                 synchronized (knownSones) {
1132                         for (String friend : friends) {
1133                                 knownSones.add(friend);
1134                         }
1135                 }
1136                 for (Post post : posts) {
1137                         post.setKnown(true);
1138                 }
1139                 for (PostReply reply : replies) {
1140                         reply.setKnown(true);
1141                 }
1142
1143                 logger.info(String.format("Sone loaded successfully: %s", sone));
1144         }
1145
1146         /**
1147          * Creates a new post.
1148          *
1149          * @param sone
1150          *            The Sone that creates the post
1151          * @param recipient
1152          *            The recipient Sone, or {@code null} if this post does not have
1153          *            a recipient
1154          * @param text
1155          *            The text of the post
1156          * @return The created post
1157          */
1158         public Post createPost(Sone sone, Optional<Sone> recipient, String text) {
1159                 return createPost(sone, recipient, System.currentTimeMillis(), text);
1160         }
1161
1162         /**
1163          * Creates a new post.
1164          *
1165          * @param sone
1166          *            The Sone that creates the post
1167          * @param recipient
1168          *            The recipient Sone, or {@code null} if this post does not have
1169          *            a recipient
1170          * @param time
1171          *            The time of the post
1172          * @param text
1173          *            The text of the post
1174          * @return The created post
1175          */
1176         public Post createPost(Sone sone, Optional<Sone> recipient, long time, String text) {
1177                 checkNotNull(text, "text must not be null");
1178                 checkArgument(text.trim().length() > 0, "text must not be empty");
1179                 if (!sone.isLocal()) {
1180                         logger.log(Level.FINE, String.format("Tried to create post for non-local Sone: %s", sone));
1181                         return null;
1182                 }
1183                 PostBuilder postBuilder = database.newPostBuilder();
1184                 postBuilder.from(sone.getId()).randomId().withTime(time).withText(text.trim());
1185                 if (recipient.isPresent()) {
1186                         postBuilder.to(recipient.get().getId());
1187                 }
1188                 final Post post = postBuilder.build();
1189                 database.storePost(post);
1190                 eventBus.post(new NewPostFoundEvent(post));
1191                 sone.addPost(post);
1192                 touchConfiguration();
1193                 localElementTicker.schedule(new MarkPostKnown(post), 10, TimeUnit.SECONDS);
1194                 return post;
1195         }
1196
1197         /**
1198          * Deletes the given post.
1199          *
1200          * @param post
1201          *            The post to delete
1202          */
1203         public void deletePost(Post post) {
1204                 if (!post.getSone().isLocal()) {
1205                         logger.log(Level.WARNING, String.format("Tried to delete post of non-local Sone: %s", post.getSone()));
1206                         return;
1207                 }
1208                 database.removePost(post);
1209                 eventBus.post(new PostRemovedEvent(post));
1210                 markPostKnown(post);
1211                 touchConfiguration();
1212         }
1213
1214         /**
1215          * Marks the given post as known, if it is currently not a known post
1216          * (according to {@link Post#isKnown()}).
1217          *
1218          * @param post
1219          *            The post to mark as known
1220          */
1221         public void markPostKnown(Post post) {
1222                 post.setKnown(true);
1223                 eventBus.post(new MarkPostKnownEvent(post));
1224                 touchConfiguration();
1225                 for (PostReply reply : getReplies(post.getId())) {
1226                         markReplyKnown(reply);
1227                 }
1228         }
1229
1230         /**
1231          * Bookmarks the post with the given ID.
1232          *
1233          * @param id
1234          *            The ID of the post to bookmark
1235          */
1236         public void bookmarkPost(String id) {
1237                 synchronized (bookmarkedPosts) {
1238                         bookmarkedPosts.add(id);
1239                 }
1240         }
1241
1242         /**
1243          * Removes the given post from the bookmarks.
1244          *
1245          * @param post
1246          *            The post to unbookmark
1247          */
1248         public void unbookmark(Post post) {
1249                 unbookmarkPost(post.getId());
1250         }
1251
1252         /**
1253          * Removes the post with the given ID from the bookmarks.
1254          *
1255          * @param id
1256          *            The ID of the post to unbookmark
1257          */
1258         public void unbookmarkPost(String id) {
1259                 synchronized (bookmarkedPosts) {
1260                         bookmarkedPosts.remove(id);
1261                 }
1262         }
1263
1264         /**
1265          * Creates a new reply.
1266          *
1267          * @param sone
1268          *            The Sone that creates the reply
1269          * @param post
1270          *            The post that this reply refers to
1271          * @param text
1272          *            The text of the reply
1273          * @return The created reply
1274          */
1275         public PostReply createReply(Sone sone, Post post, String text) {
1276                 checkNotNull(text, "text must not be null");
1277                 checkArgument(text.trim().length() > 0, "text must not be empty");
1278                 if (!sone.isLocal()) {
1279                         logger.log(Level.FINE, String.format("Tried to create reply for non-local Sone: %s", sone));
1280                         return null;
1281                 }
1282                 PostReplyBuilder postReplyBuilder = postReplyBuilder();
1283                 postReplyBuilder.randomId().from(sone.getId()).to(post.getId()).currentTime().withText(text.trim());
1284                 final PostReply reply = postReplyBuilder.build();
1285                 database.storePostReply(reply);
1286                 eventBus.post(new NewPostReplyFoundEvent(reply));
1287                 sone.addReply(reply);
1288                 touchConfiguration();
1289                 localElementTicker.schedule(new MarkReplyKnown(reply), 10, TimeUnit.SECONDS);
1290                 return reply;
1291         }
1292
1293         /**
1294          * Deletes the given reply.
1295          *
1296          * @param reply
1297          *            The reply to delete
1298          */
1299         public void deleteReply(PostReply reply) {
1300                 Sone sone = reply.getSone();
1301                 if (!sone.isLocal()) {
1302                         logger.log(Level.FINE, String.format("Tried to delete non-local reply: %s", reply));
1303                         return;
1304                 }
1305                 database.removePostReply(reply);
1306                 markReplyKnown(reply);
1307                 sone.removeReply(reply);
1308                 touchConfiguration();
1309         }
1310
1311         /**
1312          * Marks the given reply as known, if it is currently not a known reply
1313          * (according to {@link Reply#isKnown()}).
1314          *
1315          * @param reply
1316          *            The reply to mark as known
1317          */
1318         public void markReplyKnown(PostReply reply) {
1319                 boolean previouslyKnown = reply.isKnown();
1320                 reply.setKnown(true);
1321                 eventBus.post(new MarkPostReplyKnownEvent(reply));
1322                 if (!previouslyKnown) {
1323                         touchConfiguration();
1324                 }
1325         }
1326
1327         /**
1328          * Creates a new album for the given Sone.
1329          *
1330          * @param sone
1331          *            The Sone to create the album for
1332          * @param parent
1333          *            The parent of the album (may be {@code null} to create a
1334          *            top-level album)
1335          * @return The new album
1336          */
1337         public Album createAlbum(Sone sone, Album parent) {
1338                 Album album = database.newAlbumBuilder().randomId().by(sone).build();
1339                 database.storeAlbum(album);
1340                 parent.addAlbum(album);
1341                 return album;
1342         }
1343
1344         /**
1345          * Deletes the given album. The owner of the album has to be a local Sone,
1346          * and the album has to be {@link Album#isEmpty() empty} to be deleted.
1347          *
1348          * @param album
1349          *            The album to remove
1350          */
1351         public void deleteAlbum(Album album) {
1352                 checkNotNull(album, "album must not be null");
1353                 checkArgument(album.getSone().isLocal(), "album’s Sone must be a local Sone");
1354                 if (!album.isEmpty()) {
1355                         return;
1356                 }
1357                 album.getParent().removeAlbum(album);
1358                 database.removeAlbum(album);
1359                 touchConfiguration();
1360         }
1361
1362         /**
1363          * Creates a new image.
1364          *
1365          * @param sone
1366          *            The Sone creating the image
1367          * @param album
1368          *            The album the image will be inserted into
1369          * @param temporaryImage
1370          *            The temporary image to create the image from
1371          * @return The newly created image
1372          */
1373         public Image createImage(Sone sone, Album album, TemporaryImage temporaryImage) {
1374                 checkNotNull(sone, "sone must not be null");
1375                 checkNotNull(album, "album must not be null");
1376                 checkNotNull(temporaryImage, "temporaryImage must not be null");
1377                 checkArgument(sone.isLocal(), "sone must be a local Sone");
1378                 checkArgument(sone.equals(album.getSone()), "album must belong to the given Sone");
1379                 Image image = database.newImageBuilder().withId(temporaryImage.getId()).build().modify().setSone(sone).setCreationTime(System.currentTimeMillis()).update();
1380                 album.addImage(image);
1381                 database.storeImage(image);
1382                 imageInserter.insertImage(temporaryImage, image);
1383                 return image;
1384         }
1385
1386         /**
1387          * Deletes the given image. This method will also delete a matching
1388          * temporary image.
1389          *
1390          * @see #deleteTemporaryImage(String)
1391          * @param image
1392          *            The image to delete
1393          */
1394         public void deleteImage(Image image) {
1395                 checkNotNull(image, "image must not be null");
1396                 checkArgument(image.getSone().isLocal(), "image must belong to a local Sone");
1397                 deleteTemporaryImage(image.getId());
1398                 image.getAlbum().removeImage(image);
1399                 database.removeImage(image);
1400                 touchConfiguration();
1401         }
1402
1403         /**
1404          * Creates a new temporary image.
1405          *
1406          * @param mimeType
1407          *            The MIME type of the temporary image
1408          * @param imageData
1409          *            The encoded data of the image
1410          * @return The temporary image
1411          */
1412         public TemporaryImage createTemporaryImage(String mimeType, byte[] imageData) {
1413                 TemporaryImage temporaryImage = new TemporaryImage();
1414                 temporaryImage.setMimeType(mimeType).setImageData(imageData);
1415                 synchronized (temporaryImages) {
1416                         temporaryImages.put(temporaryImage.getId(), temporaryImage);
1417                 }
1418                 return temporaryImage;
1419         }
1420
1421         /**
1422          * Deletes the temporary image with the given ID.
1423          *
1424          * @param imageId
1425          *            The ID of the temporary image to delete
1426          */
1427         public void deleteTemporaryImage(String imageId) {
1428                 checkNotNull(imageId, "imageId must not be null");
1429                 synchronized (temporaryImages) {
1430                         temporaryImages.remove(imageId);
1431                 }
1432                 Image image = getImage(imageId, false);
1433                 if (image != null) {
1434                         imageInserter.cancelImageInsert(image);
1435                 }
1436         }
1437
1438         /**
1439          * Notifies the core that the configuration, either of the core or of a
1440          * single local Sone, has changed, and that the configuration should be
1441          * saved.
1442          */
1443         public void touchConfiguration() {
1444                 lastConfigurationUpdate = System.currentTimeMillis();
1445         }
1446
1447         //
1448         // SERVICE METHODS
1449         //
1450
1451         /**
1452          * Starts the core.
1453          */
1454         @Override
1455         public void serviceStart() {
1456                 loadConfiguration();
1457                 updateChecker.start();
1458                 identityManager.start();
1459                 webOfTrustUpdater.init();
1460                 webOfTrustUpdater.start();
1461                 database.start();
1462         }
1463
1464         /**
1465          * {@inheritDoc}
1466          */
1467         @Override
1468         public void serviceRun() {
1469                 long lastSaved = System.currentTimeMillis();
1470                 while (!shouldStop()) {
1471                         sleep(1000);
1472                         long now = System.currentTimeMillis();
1473                         if (shouldStop() || ((lastConfigurationUpdate > lastSaved) && ((now - lastConfigurationUpdate) > 5000))) {
1474                                 for (Sone localSone : getLocalSones()) {
1475                                         saveSone(localSone);
1476                                 }
1477                                 saveConfiguration();
1478                                 lastSaved = now;
1479                         }
1480                 }
1481         }
1482
1483         /**
1484          * Stops the core.
1485          */
1486         @Override
1487         public void serviceStop() {
1488                 localElementTicker.shutdownNow();
1489                 synchronized (soneInserters) {
1490                         for (Entry<Sone, SoneInserter> soneInserter : soneInserters.entrySet()) {
1491                                 soneInserter.getValue().stop();
1492                                 saveSone(soneInserter.getKey());
1493                         }
1494                 }
1495                 saveConfiguration();
1496                 database.stop();
1497                 webOfTrustUpdater.stop();
1498                 updateChecker.stop();
1499                 soneDownloader.stop();
1500                 soneDownloaders.shutdown();
1501                 identityManager.stop();
1502         }
1503
1504         //
1505         // PRIVATE METHODS
1506         //
1507
1508         /**
1509          * Saves the given Sone. This will persist all local settings for the given
1510          * Sone, such as the friends list and similar, private options.
1511          *
1512          * @param sone
1513          *            The Sone to save
1514          */
1515         private synchronized void saveSone(Sone sone) {
1516                 if (!sone.isLocal()) {
1517                         logger.log(Level.FINE, String.format("Tried to save non-local Sone: %s", sone));
1518                         return;
1519                 }
1520                 if (!(sone.getIdentity() instanceof OwnIdentity)) {
1521                         logger.log(Level.WARNING, String.format("Local Sone without OwnIdentity found, refusing to save: %s", sone));
1522                         return;
1523                 }
1524
1525                 logger.log(Level.INFO, String.format("Saving Sone: %s", sone));
1526                 try {
1527                         /* save Sone into configuration. */
1528                         String sonePrefix = "Sone/" + sone.getId();
1529                         configuration.getLongValue(sonePrefix + "/Time").setValue(sone.getTime());
1530                         configuration.getStringValue(sonePrefix + "/LastInsertFingerprint").setValue(soneInserters.get(sone).getLastInsertFingerprint());
1531
1532                         /* save profile. */
1533                         Profile profile = sone.getProfile();
1534                         configuration.getStringValue(sonePrefix + "/Profile/FirstName").setValue(profile.getFirstName());
1535                         configuration.getStringValue(sonePrefix + "/Profile/MiddleName").setValue(profile.getMiddleName());
1536                         configuration.getStringValue(sonePrefix + "/Profile/LastName").setValue(profile.getLastName());
1537                         configuration.getIntValue(sonePrefix + "/Profile/BirthDay").setValue(profile.getBirthDay());
1538                         configuration.getIntValue(sonePrefix + "/Profile/BirthMonth").setValue(profile.getBirthMonth());
1539                         configuration.getIntValue(sonePrefix + "/Profile/BirthYear").setValue(profile.getBirthYear());
1540                         configuration.getStringValue(sonePrefix + "/Profile/Avatar").setValue(profile.getAvatar());
1541
1542                         /* save profile fields. */
1543                         int fieldCounter = 0;
1544                         for (Field profileField : profile.getFields()) {
1545                                 String fieldPrefix = sonePrefix + "/Profile/Fields/" + fieldCounter++;
1546                                 configuration.getStringValue(fieldPrefix + "/Name").setValue(profileField.getName());
1547                                 configuration.getStringValue(fieldPrefix + "/Value").setValue(profileField.getValue());
1548                         }
1549                         configuration.getStringValue(sonePrefix + "/Profile/Fields/" + fieldCounter + "/Name").setValue(null);
1550
1551                         /* save posts. */
1552                         int postCounter = 0;
1553                         for (Post post : sone.getPosts()) {
1554                                 String postPrefix = sonePrefix + "/Posts/" + postCounter++;
1555                                 configuration.getStringValue(postPrefix + "/ID").setValue(post.getId());
1556                                 configuration.getStringValue(postPrefix + "/Recipient").setValue(post.getRecipientId().orNull());
1557                                 configuration.getLongValue(postPrefix + "/Time").setValue(post.getTime());
1558                                 configuration.getStringValue(postPrefix + "/Text").setValue(post.getText());
1559                         }
1560                         configuration.getStringValue(sonePrefix + "/Posts/" + postCounter + "/ID").setValue(null);
1561
1562                         /* save replies. */
1563                         int replyCounter = 0;
1564                         for (PostReply reply : sone.getReplies()) {
1565                                 String replyPrefix = sonePrefix + "/Replies/" + replyCounter++;
1566                                 configuration.getStringValue(replyPrefix + "/ID").setValue(reply.getId());
1567                                 configuration.getStringValue(replyPrefix + "/Post/ID").setValue(reply.getPostId());
1568                                 configuration.getLongValue(replyPrefix + "/Time").setValue(reply.getTime());
1569                                 configuration.getStringValue(replyPrefix + "/Text").setValue(reply.getText());
1570                         }
1571                         configuration.getStringValue(sonePrefix + "/Replies/" + replyCounter + "/ID").setValue(null);
1572
1573                         /* save post likes. */
1574                         int postLikeCounter = 0;
1575                         for (String postId : sone.getLikedPostIds()) {
1576                                 configuration.getStringValue(sonePrefix + "/Likes/Post/" + postLikeCounter++ + "/ID").setValue(postId);
1577                         }
1578                         configuration.getStringValue(sonePrefix + "/Likes/Post/" + postLikeCounter + "/ID").setValue(null);
1579
1580                         /* save reply likes. */
1581                         int replyLikeCounter = 0;
1582                         for (String replyId : sone.getLikedReplyIds()) {
1583                                 configuration.getStringValue(sonePrefix + "/Likes/Reply/" + replyLikeCounter++ + "/ID").setValue(replyId);
1584                         }
1585                         configuration.getStringValue(sonePrefix + "/Likes/Reply/" + replyLikeCounter + "/ID").setValue(null);
1586
1587                         /* save friends. */
1588                         int friendCounter = 0;
1589                         for (String friendId : sone.getFriends()) {
1590                                 configuration.getStringValue(sonePrefix + "/Friends/" + friendCounter++ + "/ID").setValue(friendId);
1591                         }
1592                         configuration.getStringValue(sonePrefix + "/Friends/" + friendCounter + "/ID").setValue(null);
1593
1594                         /* save albums. first, collect in a flat structure, top-level first. */
1595                         List<Album> albums = FluentIterable.from(sone.getRootAlbum().getAlbums()).transformAndConcat(Album.FLATTENER).toList();
1596
1597                         int albumCounter = 0;
1598                         for (Album album : albums) {
1599                                 String albumPrefix = sonePrefix + "/Albums/" + albumCounter++;
1600                                 configuration.getStringValue(albumPrefix + "/ID").setValue(album.getId());
1601                                 configuration.getStringValue(albumPrefix + "/Title").setValue(album.getTitle());
1602                                 configuration.getStringValue(albumPrefix + "/Description").setValue(album.getDescription());
1603                                 configuration.getStringValue(albumPrefix + "/Parent").setValue(album.getParent().equals(sone.getRootAlbum()) ? null : album.getParent().getId());
1604                                 configuration.getStringValue(albumPrefix + "/AlbumImage").setValue(album.getAlbumImage() == null ? null : album.getAlbumImage().getId());
1605                         }
1606                         configuration.getStringValue(sonePrefix + "/Albums/" + albumCounter + "/ID").setValue(null);
1607
1608                         /* save images. */
1609                         int imageCounter = 0;
1610                         for (Album album : albums) {
1611                                 for (Image image : album.getImages()) {
1612                                         if (!image.isInserted()) {
1613                                                 continue;
1614                                         }
1615                                         String imagePrefix = sonePrefix + "/Images/" + imageCounter++;
1616                                         configuration.getStringValue(imagePrefix + "/ID").setValue(image.getId());
1617                                         configuration.getStringValue(imagePrefix + "/Album").setValue(album.getId());
1618                                         configuration.getStringValue(imagePrefix + "/Key").setValue(image.getKey());
1619                                         configuration.getStringValue(imagePrefix + "/Title").setValue(image.getTitle());
1620                                         configuration.getStringValue(imagePrefix + "/Description").setValue(image.getDescription());
1621                                         configuration.getLongValue(imagePrefix + "/CreationTime").setValue(image.getCreationTime());
1622                                         configuration.getIntValue(imagePrefix + "/Width").setValue(image.getWidth());
1623                                         configuration.getIntValue(imagePrefix + "/Height").setValue(image.getHeight());
1624                                 }
1625                         }
1626                         configuration.getStringValue(sonePrefix + "/Images/" + imageCounter + "/ID").setValue(null);
1627
1628                         /* save options. */
1629                         configuration.getBooleanValue(sonePrefix + "/Options/AutoFollow").setValue(sone.getOptions().isAutoFollow());
1630                         configuration.getBooleanValue(sonePrefix + "/Options/EnableSoneInsertNotifications").setValue(sone.getOptions().isSoneInsertNotificationEnabled());
1631                         configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewSones").setValue(sone.getOptions().isShowNewSoneNotifications());
1632                         configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewPosts").setValue(sone.getOptions().isShowNewPostNotifications());
1633                         configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewReplies").setValue(sone.getOptions().isShowNewReplyNotifications());
1634                         configuration.getStringValue(sonePrefix + "/Options/ShowCustomAvatars").setValue(sone.getOptions().getShowCustomAvatars().name());
1635
1636                         configuration.save();
1637
1638                         webOfTrustUpdater.setProperty((OwnIdentity) sone.getIdentity(), "Sone.LatestEdition", String.valueOf(sone.getLatestEdition()));
1639
1640                         logger.log(Level.INFO, String.format("Sone %s saved.", sone));
1641                 } catch (ConfigurationException ce1) {
1642                         logger.log(Level.WARNING, String.format("Could not save Sone: %s", sone), ce1);
1643                 }
1644         }
1645
1646         /**
1647          * Saves the current options.
1648          */
1649         private void saveConfiguration() {
1650                 synchronized (configuration) {
1651                         if (storingConfiguration) {
1652                                 logger.log(Level.FINE, "Already storing configuration…");
1653                                 return;
1654                         }
1655                         storingConfiguration = true;
1656                 }
1657
1658                 /* store the options first. */
1659                 try {
1660                         configuration.getIntValue("Option/ConfigurationVersion").setValue(0);
1661                         configuration.getIntValue("Option/InsertionDelay").setValue(options.getIntegerOption("InsertionDelay").getReal());
1662                         configuration.getIntValue("Option/PostsPerPage").setValue(options.getIntegerOption("PostsPerPage").getReal());
1663                         configuration.getIntValue("Option/ImagesPerPage").setValue(options.getIntegerOption("ImagesPerPage").getReal());
1664                         configuration.getIntValue("Option/CharactersPerPost").setValue(options.getIntegerOption("CharactersPerPost").getReal());
1665                         configuration.getIntValue("Option/PostCutOffLength").setValue(options.getIntegerOption("PostCutOffLength").getReal());
1666                         configuration.getBooleanValue("Option/RequireFullAccess").setValue(options.getBooleanOption("RequireFullAccess").getReal());
1667                         configuration.getIntValue("Option/PositiveTrust").setValue(options.getIntegerOption("PositiveTrust").getReal());
1668                         configuration.getIntValue("Option/NegativeTrust").setValue(options.getIntegerOption("NegativeTrust").getReal());
1669                         configuration.getStringValue("Option/TrustComment").setValue(options.getStringOption("TrustComment").getReal());
1670                         configuration.getBooleanValue("Option/ActivateFcpInterface").setValue(options.getBooleanOption("ActivateFcpInterface").getReal());
1671                         configuration.getIntValue("Option/FcpFullAccessRequired").setValue(options.getIntegerOption("FcpFullAccessRequired").getReal());
1672
1673                         /* save known Sones. */
1674                         int soneCounter = 0;
1675                         synchronized (knownSones) {
1676                                 for (String knownSoneId : knownSones) {
1677                                         configuration.getStringValue("KnownSone/" + soneCounter++ + "/ID").setValue(knownSoneId);
1678                                 }
1679                                 configuration.getStringValue("KnownSone/" + soneCounter + "/ID").setValue(null);
1680                         }
1681
1682                         /* save Sone following times. */
1683                         soneCounter = 0;
1684                         synchronized (soneFollowingTimes) {
1685                                 for (Entry<String, Long> soneFollowingTime : soneFollowingTimes.entrySet()) {
1686                                         configuration.getStringValue("SoneFollowingTimes/" + soneCounter + "/Sone").setValue(soneFollowingTime.getKey());
1687                                         configuration.getLongValue("SoneFollowingTimes/" + soneCounter + "/Time").setValue(soneFollowingTime.getValue());
1688                                         ++soneCounter;
1689                                 }
1690                                 configuration.getStringValue("SoneFollowingTimes/" + soneCounter + "/Sone").setValue(null);
1691                         }
1692
1693                         /* save known posts. */
1694                         database.save();
1695
1696                         /* save bookmarked posts. */
1697                         int bookmarkedPostCounter = 0;
1698                         synchronized (bookmarkedPosts) {
1699                                 for (String bookmarkedPostId : bookmarkedPosts) {
1700                                         configuration.getStringValue("Bookmarks/Post/" + bookmarkedPostCounter++ + "/ID").setValue(bookmarkedPostId);
1701                                 }
1702                         }
1703                         configuration.getStringValue("Bookmarks/Post/" + bookmarkedPostCounter++ + "/ID").setValue(null);
1704
1705                         /* now save it. */
1706                         configuration.save();
1707
1708                 } catch (ConfigurationException ce1) {
1709                         logger.log(Level.SEVERE, "Could not store configuration!", ce1);
1710                 } catch (DatabaseException de1) {
1711                         logger.log(Level.SEVERE, "Could not save database!", de1);
1712                 } finally {
1713                         synchronized (configuration) {
1714                                 storingConfiguration = false;
1715                         }
1716                 }
1717         }
1718
1719         /**
1720          * Loads the configuration.
1721          */
1722         private void loadConfiguration() {
1723                 /* create options. */
1724                 options.addIntegerOption("InsertionDelay", new DefaultOption<Integer>(60, new IntegerRangePredicate(0, Integer.MAX_VALUE), new SetInsertionDelay()));
1725                 options.addIntegerOption("PostsPerPage", new DefaultOption<Integer>(10, new IntegerRangePredicate(1, Integer.MAX_VALUE)));
1726                 options.addIntegerOption("ImagesPerPage", new DefaultOption<Integer>(9, new IntegerRangePredicate(1, Integer.MAX_VALUE)));
1727                 options.addIntegerOption("CharactersPerPost", new DefaultOption<Integer>(400, Predicates.<Integer> or(new IntegerRangePredicate(50, Integer.MAX_VALUE), Predicates.equalTo(-1))));
1728                 options.addIntegerOption("PostCutOffLength", new DefaultOption<Integer>(200, Predicates.<Integer> or(new IntegerRangePredicate(50, Integer.MAX_VALUE), Predicates.equalTo(-1))));
1729                 options.addBooleanOption("RequireFullAccess", new DefaultOption<Boolean>(false));
1730                 options.addIntegerOption("PositiveTrust", new DefaultOption<Integer>(75, new IntegerRangePredicate(0, 100)));
1731                 options.addIntegerOption("NegativeTrust", new DefaultOption<Integer>(-25, new IntegerRangePredicate(-100, 100)));
1732                 options.addStringOption("TrustComment", new DefaultOption<String>("Set from Sone Web Interface"));
1733                 options.addBooleanOption("ActivateFcpInterface", new DefaultOption<Boolean>(false, fcpInterface.new SetActive()));
1734                 options.addIntegerOption("FcpFullAccessRequired", new DefaultOption<Integer>(2, fcpInterface.new SetFullAccessRequired()));
1735
1736                 loadConfigurationValue("InsertionDelay");
1737                 loadConfigurationValue("PostsPerPage");
1738                 loadConfigurationValue("ImagesPerPage");
1739                 loadConfigurationValue("CharactersPerPost");
1740                 loadConfigurationValue("PostCutOffLength");
1741                 options.getBooleanOption("RequireFullAccess").set(configuration.getBooleanValue("Option/RequireFullAccess").getValue(null));
1742                 loadConfigurationValue("PositiveTrust");
1743                 loadConfigurationValue("NegativeTrust");
1744                 options.getStringOption("TrustComment").set(configuration.getStringValue("Option/TrustComment").getValue(null));
1745                 options.getBooleanOption("ActivateFcpInterface").set(configuration.getBooleanValue("Option/ActivateFcpInterface").getValue(null));
1746                 options.getIntegerOption("FcpFullAccessRequired").set(configuration.getIntValue("Option/FcpFullAccessRequired").getValue(null));
1747
1748                 /* load known Sones. */
1749                 int soneCounter = 0;
1750                 while (true) {
1751                         String knownSoneId = configuration.getStringValue("KnownSone/" + soneCounter++ + "/ID").getValue(null);
1752                         if (knownSoneId == null) {
1753                                 break;
1754                         }
1755                         synchronized (knownSones) {
1756                                 knownSones.add(knownSoneId);
1757                         }
1758                 }
1759
1760                 /* load Sone following times. */
1761                 soneCounter = 0;
1762                 while (true) {
1763                         String soneId = configuration.getStringValue("SoneFollowingTimes/" + soneCounter + "/Sone").getValue(null);
1764                         if (soneId == null) {
1765                                 break;
1766                         }
1767                         long time = configuration.getLongValue("SoneFollowingTimes/" + soneCounter + "/Time").getValue(Long.MAX_VALUE);
1768                         synchronized (soneFollowingTimes) {
1769                                 soneFollowingTimes.put(soneId, time);
1770                         }
1771                         ++soneCounter;
1772                 }
1773
1774                 /* load bookmarked posts. */
1775                 int bookmarkedPostCounter = 0;
1776                 while (true) {
1777                         String bookmarkedPostId = configuration.getStringValue("Bookmarks/Post/" + bookmarkedPostCounter++ + "/ID").getValue(null);
1778                         if (bookmarkedPostId == null) {
1779                                 break;
1780                         }
1781                         synchronized (bookmarkedPosts) {
1782                                 bookmarkedPosts.add(bookmarkedPostId);
1783                         }
1784                 }
1785
1786         }
1787
1788         /**
1789          * Loads an {@link Integer} configuration value for the option with the
1790          * given name, logging validation failures.
1791          *
1792          * @param optionName
1793          *            The name of the option to load
1794          */
1795         private void loadConfigurationValue(String optionName) {
1796                 try {
1797                         options.getIntegerOption(optionName).set(configuration.getIntValue("Option/" + optionName).getValue(null));
1798                 } catch (IllegalArgumentException iae1) {
1799                         logger.log(Level.WARNING, String.format("Invalid value for %s in configuration, using default.", optionName));
1800                 }
1801         }
1802
1803         /**
1804          * Notifies the core that a new {@link OwnIdentity} was added.
1805          *
1806          * @param ownIdentityAddedEvent
1807          *            The event
1808          */
1809         @Subscribe
1810         public void ownIdentityAdded(OwnIdentityAddedEvent ownIdentityAddedEvent) {
1811                 OwnIdentity ownIdentity = ownIdentityAddedEvent.ownIdentity();
1812                 logger.log(Level.FINEST, String.format("Adding OwnIdentity: %s", ownIdentity));
1813                 if (ownIdentity.hasContext("Sone")) {
1814                         addLocalSone(ownIdentity);
1815                 }
1816         }
1817
1818         /**
1819          * Notifies the core that an {@link OwnIdentity} was removed.
1820          *
1821          * @param ownIdentityRemovedEvent
1822          *            The event
1823          */
1824         @Subscribe
1825         public void ownIdentityRemoved(OwnIdentityRemovedEvent ownIdentityRemovedEvent) {
1826                 OwnIdentity ownIdentity = ownIdentityRemovedEvent.ownIdentity();
1827                 logger.log(Level.FINEST, String.format("Removing OwnIdentity: %s", ownIdentity));
1828                 trustedIdentities.removeAll(ownIdentity);
1829         }
1830
1831         /**
1832          * Notifies the core that a new {@link Identity} was added.
1833          *
1834          * @param identityAddedEvent
1835          *            The event
1836          */
1837         @Subscribe
1838         public void identityAdded(IdentityAddedEvent identityAddedEvent) {
1839                 Identity identity = identityAddedEvent.identity();
1840                 logger.log(Level.FINEST, String.format("Adding Identity: %s", identity));
1841                 trustedIdentities.put(identityAddedEvent.ownIdentity(), identity);
1842                 addRemoteSone(identity);
1843         }
1844
1845         /**
1846          * Notifies the core that an {@link Identity} was updated.
1847          *
1848          * @param identityUpdatedEvent
1849          *            The event
1850          */
1851         @Subscribe
1852         public void identityUpdated(IdentityUpdatedEvent identityUpdatedEvent) {
1853                 Identity identity = identityUpdatedEvent.identity();
1854                 final Sone sone = getRemoteSone(identity.getId());
1855                 if (sone.isLocal()) {
1856                         return;
1857                 }
1858                 sone.setLatestEdition(Numbers.safeParseLong(identity.getProperty("Sone.LatestEdition"), sone.getLatestEdition()));
1859                 soneDownloader.addSone(sone);
1860                 soneDownloaders.execute(soneDownloader.fetchSoneAction(sone));
1861         }
1862
1863         /**
1864          * Notifies the core that an {@link Identity} was removed.
1865          *
1866          * @param identityRemovedEvent
1867          *            The event
1868          */
1869         @Subscribe
1870         public void identityRemoved(IdentityRemovedEvent identityRemovedEvent) {
1871                 OwnIdentity ownIdentity = identityRemovedEvent.ownIdentity();
1872                 Identity identity = identityRemovedEvent.identity();
1873                 trustedIdentities.remove(ownIdentity, identity);
1874                 for (Entry<OwnIdentity, Collection<Identity>> trustedIdentity : trustedIdentities.asMap().entrySet()) {
1875                         if (trustedIdentity.getKey().equals(ownIdentity)) {
1876                                 continue;
1877                         }
1878                         if (trustedIdentity.getValue().contains(identity)) {
1879                                 return;
1880                         }
1881                 }
1882                 Optional<Sone> sone = getSone(identity.getId());
1883                 if (!sone.isPresent()) {
1884                         /* TODO - we don’t have the Sone anymore. should this happen? */
1885                         return;
1886                 }
1887                 database.removePosts(sone.get());
1888                 for (Post post : sone.get().getPosts()) {
1889                         eventBus.post(new PostRemovedEvent(post));
1890                 }
1891                 database.removePostReplies(sone.get());
1892                 for (PostReply reply : sone.get().getReplies()) {
1893                         eventBus.post(new PostReplyRemovedEvent(reply));
1894                 }
1895 //              TODO – implement in database
1896 //              sones.remove(identity.getId());
1897                 eventBus.post(new SoneRemovedEvent(sone.get()));
1898         }
1899
1900         /**
1901          * Deletes the temporary image.
1902          *
1903          * @param imageInsertFinishedEvent
1904          *            The event
1905          */
1906         @Subscribe
1907         public void imageInsertFinished(ImageInsertFinishedEvent imageInsertFinishedEvent) {
1908                 logger.log(Level.WARNING, String.format("Image insert finished for %s: %s", imageInsertFinishedEvent.image(), imageInsertFinishedEvent.resultingUri()));
1909                 imageInsertFinishedEvent.image().modify().setKey(imageInsertFinishedEvent.resultingUri().toString()).update();
1910                 deleteTemporaryImage(imageInsertFinishedEvent.image().getId());
1911                 touchConfiguration();
1912         }
1913
1914         @VisibleForTesting
1915         class MarkPostKnown implements Runnable {
1916
1917                 private final Post post;
1918
1919                 public MarkPostKnown(Post post) {
1920                         this.post = post;
1921                 }
1922
1923                 @Override
1924                 public void run() {
1925                         markPostKnown(post);
1926                 }
1927
1928         }
1929
1930         @VisibleForTesting
1931         class MarkReplyKnown implements Runnable {
1932
1933                 private final PostReply postReply;
1934
1935                 public MarkReplyKnown(PostReply postReply) {
1936                         this.postReply = postReply;
1937                 }
1938
1939                 @Override
1940                 public void run() {
1941                         markReplyKnown(postReply);
1942                 }
1943
1944         }
1945
1946 }