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