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