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.of;
  21 import static com.google.common.base.Preconditions.checkArgument;
  22 import static com.google.common.base.Preconditions.checkNotNull;
  23 import static com.google.common.base.Predicates.not;
  24 import static com.google.common.collect.FluentIterable.from;
  25 import static net.pterodactylus.sone.data.Identified.GET_ID;
  26 import static net.pterodactylus.sone.data.Sone.LOCAL_SONE_FILTER;
  27
  28 import java.net.MalformedURLException;
  29 import java.util.Collection;
  30 import java.util.HashMap;
  31 import java.util.HashSet;
  32 import java.util.List;
  33 import java.util.Map;
  34 import java.util.Map.Entry;
  35 import java.util.Set;
  36 import java.util.concurrent.ExecutorService;
  37 import java.util.concurrent.Executors;
  38 import java.util.concurrent.ScheduledExecutorService;
  39 import java.util.concurrent.TimeUnit;
  40 import java.util.logging.Level;
  41 import java.util.logging.Logger;
  42
  43 import net.pterodactylus.sone.core.Options.DefaultOption;
  44 import net.pterodactylus.sone.core.Options.Option;
  45 import net.pterodactylus.sone.core.Options.OptionWatcher;
  46 import net.pterodactylus.sone.core.event.ImageInsertFinishedEvent;
  47 import net.pterodactylus.sone.core.event.MarkPostKnownEvent;
  48 import net.pterodactylus.sone.core.event.MarkPostReplyKnownEvent;
  49 import net.pterodactylus.sone.core.event.MarkSoneKnownEvent;
  50 import net.pterodactylus.sone.core.event.NewPostFoundEvent;
  51 import net.pterodactylus.sone.core.event.NewPostReplyFoundEvent;
  52 import net.pterodactylus.sone.core.event.NewSoneFoundEvent;
  53 import net.pterodactylus.sone.core.event.PostRemovedEvent;
  54 import net.pterodactylus.sone.core.event.PostReplyRemovedEvent;
  55 import net.pterodactylus.sone.core.event.SoneLockedEvent;
  56 import net.pterodactylus.sone.core.event.SoneRemovedEvent;
  57 import net.pterodactylus.sone.core.event.SoneUnlockedEvent;
  58 import net.pterodactylus.sone.data.Album;
  59 import net.pterodactylus.sone.data.Client;
  60 import net.pterodactylus.sone.data.Image;
  61 import net.pterodactylus.sone.data.Post;
  62 import net.pterodactylus.sone.data.PostReply;
  63 import net.pterodactylus.sone.data.Profile;
  64 import net.pterodactylus.sone.data.Profile.Field;
  65 import net.pterodactylus.sone.data.Reply;
  66 import net.pterodactylus.sone.data.Sone;
  67 import net.pterodactylus.sone.data.Sone.ShowCustomAvatars;
  68 import net.pterodactylus.sone.data.Sone.SoneStatus;
  69 import net.pterodactylus.sone.data.TemporaryImage;
  70 import net.pterodactylus.sone.database.Database;
  71 import net.pterodactylus.sone.database.DatabaseException;
  72 import net.pterodactylus.sone.database.PostBuilder;
  73 import net.pterodactylus.sone.database.PostBuilder.PostCreated;
  74 import net.pterodactylus.sone.database.PostProvider;
  75 import net.pterodactylus.sone.database.PostReplyBuilder;
  76 import net.pterodactylus.sone.database.PostReplyProvider;
  77 import net.pterodactylus.sone.database.SoneProvider;
  78 import net.pterodactylus.sone.fcp.FcpInterface;
  79 import net.pterodactylus.sone.fcp.FcpInterface.FullAccessRequired;
  80 import net.pterodactylus.sone.freenet.wot.Identity;
  81 import net.pterodactylus.sone.freenet.wot.IdentityManager;
  82 import net.pterodactylus.sone.freenet.wot.OwnIdentity;
  83 import net.pterodactylus.sone.freenet.wot.event.IdentityAddedEvent;
  84 import net.pterodactylus.sone.freenet.wot.event.IdentityRemovedEvent;
  85 import net.pterodactylus.sone.freenet.wot.event.IdentityUpdatedEvent;
  86 import net.pterodactylus.sone.freenet.wot.event.OwnIdentityAddedEvent;
  87 import net.pterodactylus.sone.freenet.wot.event.OwnIdentityRemovedEvent;
  88 import net.pterodactylus.sone.main.SonePlugin;
  89 import net.pterodactylus.sone.utils.IntegerRangePredicate;
  90 import net.pterodactylus.util.config.Configuration;
  91 import net.pterodactylus.util.config.ConfigurationException;
  92 import net.pterodactylus.util.logging.Logging;
  93 import net.pterodactylus.util.number.Numbers;
  94 import net.pterodactylus.util.service.AbstractService;
  95 import net.pterodactylus.util.thread.NamedThreadFactory;
  96
  97 import freenet.keys.FreenetURI;
  98
  99 import com.google.common.base.Optional;
 100 import com.google.common.base.Predicate;
 101 import com.google.common.base.Predicates;
 102 import com.google.common.collect.HashMultimap;
 103 import com.google.common.collect.ImmutableSet;
 104 import com.google.common.collect.Maps;
 105 import com.google.common.collect.Multimap;
 106 import com.google.common.collect.Multimaps;
 107 import com.google.common.eventbus.EventBus;
 108 import com.google.common.eventbus.Subscribe;
 109 import com.google.inject.Inject;
 110
 111 /**
 112  * The Sone core.
 113  *
 114  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
 115  */
 116 public class Core extends AbstractService implements SoneProvider, PostProvider, PostReplyProvider {
 117
 118         /** The logger. */
 119         private static final Logger logger = Logging.getLogger(Core.class);
 120
 121         /** The start time. */
 122         private final long startupTime = System.currentTimeMillis();
 123
 124         /** The options. */
 125         private final Options options = new Options();
 126
 127         /** The preferences. */
 128         private final Preferences preferences = new Preferences(options);
 129
 130         /** The event bus. */
 131         private final EventBus eventBus;
 132
 133         /** The configuration. */
 134         private Configuration configuration;
 135
 136         /** Whether we’re currently saving the configuration. */
 137         private boolean storingConfiguration = false;
 138
 139         /** The identity manager. */
 140         private final IdentityManager identityManager;
 141
 142         /** Interface to freenet. */
 143         private final FreenetInterface freenetInterface;
 144
 145         /** The Sone downloader. */
 146         private final SoneDownloader soneDownloader;
 147
 148         /** The image inserter. */
 149         private final ImageInserter imageInserter;
 150
 151         /** Sone downloader thread-pool. */
 152         private final ExecutorService soneDownloaders = Executors.newFixedThreadPool(10, new NamedThreadFactory("Sone Downloader %2$d"));
 153
 154         /** The update checker. */
 155         private final UpdateChecker updateChecker;
 156
 157         /** The trust updater. */
 158         private final WebOfTrustUpdater webOfTrustUpdater;
 159
 160         /** The FCP interface. */
 161         private volatile FcpInterface fcpInterface;
 162
 163         /** The times Sones were followed. */
 164         private final Map<String, Long> soneFollowingTimes = new HashMap<String, Long>();
 165
 166         /** Locked local Sones. */
 167         /* synchronize on itself. */
 168         private final Set<Sone> lockedSones = new HashSet<Sone>();
 169
 170         /** Sone inserters. */
 171         /* synchronize access on this on sones. */
 172         private final Map<Sone, SoneInserter> soneInserters = new HashMap<Sone, SoneInserter>();
 173
 174         /** Sone rescuers. */
 175         /* synchronize access on this on sones. */
 176         private final Map<Sone, SoneRescuer> soneRescuers = new HashMap<Sone, SoneRescuer>();
 177
 178         /** All Sones. */
 179         /* synchronize access on this on itself. */
 180         private final Map<String, Sone> sones = new HashMap<String, Sone>();
 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 SoneDownloader(this, freenetInterface);
 227                 this.imageInserter = new ImageInserter(freenetInterface);
 228                 this.updateChecker = new UpdateChecker(eventBus, freenetInterface);
 229                 this.webOfTrustUpdater = webOfTrustUpdater;
 230                 this.eventBus = eventBus;
 231                 this.database = database;
 232         }
 233
 234         //
 235         // ACCESSORS
 236         //
 237
 238         /**
 239          * Returns the time Sone was started.
 240          *
 241          * @return The startup time (in milliseconds since Jan 1, 1970 UTC)
 242          */
 243         public long getStartupTime() {
 244                 return startupTime;
 245         }
 246
 247         /**
 248          * Sets the configuration to use. This will automatically save the current
 249          * configuration to the given configuration.
 250          *
 251          * @param configuration
 252          *              The new configuration to use
 253          */
 254         public void setConfiguration(Configuration configuration) {
 255                 this.configuration = configuration;
 256                 touchConfiguration();
 257         }
 258
 259         /**
 260          * Returns the options used by the core.
 261          *
 262          * @return The options of the core
 263          */
 264         public Preferences getPreferences() {
 265                 return preferences;
 266         }
 267
 268         /**
 269          * Returns the identity manager used by the core.
 270          *
 271          * @return The identity manager
 272          */
 273         public IdentityManager getIdentityManager() {
 274                 return identityManager;
 275         }
 276
 277         /**
 278          * Returns the update checker.
 279          *
 280          * @return The update checker
 281          */
 282         public UpdateChecker getUpdateChecker() {
 283                 return updateChecker;
 284         }
 285
 286         /**
 287          * Sets the FCP interface to use.
 288          *
 289          * @param fcpInterface
 290          *              The FCP interface to use
 291          */
 292         public void setFcpInterface(FcpInterface fcpInterface) {
 293                 this.fcpInterface = fcpInterface;
 294         }
 295
 296         public Database getDatabase() {
 297                 return database;
 298         }
 299
 300         /**
 301          * Returns the Sone rescuer for the given local Sone.
 302          *
 303          * @param sone
 304          *              The local Sone to get the rescuer for
 305          * @return The Sone rescuer for the given Sone
 306          */
 307         public SoneRescuer getSoneRescuer(Sone sone) {
 308                 checkNotNull(sone, "sone must not be null");
 309                 checkArgument(sone.isLocal(), "sone must be local");
 310                 synchronized (sones) {
 311                         SoneRescuer soneRescuer = soneRescuers.get(sone);
 312                         if (soneRescuer == null) {
 313                                 soneRescuer = new SoneRescuer(this, soneDownloader, sone);
 314                                 soneRescuers.put(sone, soneRescuer);
 315                                 soneRescuer.start();
 316                         }
 317                         return soneRescuer;
 318                 }
 319         }
 320
 321         /**
 322          * Returns whether the given Sone is currently locked.
 323          *
 324          * @param sone
 325          *              The sone to check
 326          * @return {@code true} if the Sone is locked, {@code false} if it is not
 327          */
 328         public boolean isLocked(Sone sone) {
 329                 synchronized (lockedSones) {
 330                         return lockedSones.contains(sone);
 331                 }
 332         }
 333
 334         /** {@inheritDocs} */
 335         @Override
 336         public Collection<Sone> getSones() {
 337                 synchronized (sones) {
 338                         return ImmutableSet.copyOf(sones.values());
 339                 }
 340         }
 341
 342         /**
 343          * Returns the Sone with the given ID, regardless whether it’s local or
 344          * remote.
 345          *
 346          * @param id
 347          *              The ID of the Sone to get
 348          * @return The Sone with the given ID, or {@code null} if there is no such
 349          *         Sone
 350          */
 351         @Override
 352         public Optional<Sone> getSone(String id) {
 353                 synchronized (sones) {
 354                         return Optional.fromNullable(sones.get(id));
 355                 }
 356         }
 357
 358         /** {@inheritDocs} */
 359         @Override
 360         public Collection<Sone> getLocalSones() {
 361                 synchronized (sones) {
 362                         return from(sones.values()).filter(new Predicate<Sone>() {
 363
 364                                 @Override
 365                                 public boolean apply(Sone sone) {
 366                                         return sone.isLocal();
 367                                 }
 368                         }).toSet();
 369                 }
 370         }
 371
 372         /**
 373          * Returns the local Sone with the given ID, optionally creating a new Sone.
 374          *
 375          * @param id
 376          *              The ID of the Sone
 377          * @return The Sone with the given ID, or {@code null}
 378          */
 379         public Optional<Sone> getLocalSone(String id) {
 380                 return from(database.getSone(id).asSet()).firstMatch(LOCAL_SONE_FILTER);
 381         }
 382
 383         /** {@inheritDocs} */
 384         @Override
 385         public Collection<Sone> getRemoteSones() {
 386                 synchronized (sones) {
 387                         return from(sones.values()).filter(new Predicate<Sone>() {
 388
 389                                 @Override
 390                                 public boolean apply(Sone sone) {
 391                                         return !sone.isLocal();
 392                                 }
 393                         }).toSet();
 394                 }
 395         }
 396
 397         /**
 398          * Returns the remote Sone with the given ID.
 399          *
 400          * @param id
 401          *              The ID of the remote Sone to get
 402          * @return The Sone with the given ID
 403          */
 404         public Optional<Sone> getRemoteSone(String id) {
 405                 return from(database.getSone(id).asSet()).firstMatch(not(LOCAL_SONE_FILTER));
 406         }
 407
 408         /**
 409          * Returns whether the given Sone has been modified.
 410          *
 411          * @param sone
 412          *              The Sone to check for modifications
 413          * @return {@code true} if a modification has been detected in the Sone, {@code
 414          *         false} otherwise
 415          */
 416         public boolean isModifiedSone(Sone sone) {
 417                 return (soneInserters.containsKey(sone)) ? soneInserters.get(sone).isModified() : false;
 418         }
 419
 420         /**
 421          * Returns the time when the given was first followed by any local Sone.
 422          *
 423          * @param sone
 424          *              The Sone to get the time for
 425          * @return The time (in milliseconds since Jan 1, 1970) the Sone has first been
 426          *         followed, or {@link Long#MAX_VALUE}
 427          */
 428         public long getSoneFollowingTime(Sone sone) {
 429                 synchronized (soneFollowingTimes) {
 430                         return Optional.fromNullable(soneFollowingTimes.get(sone.getId())).or(Long.MAX_VALUE);
 431                 }
 432         }
 433
 434         /**
 435          * Returns whether the target Sone is trusted by the origin Sone.
 436          *
 437          * @param origin
 438          *              The origin Sone
 439          * @param target
 440          *              The target Sone
 441          * @return {@code true} if the target Sone is trusted by the origin Sone
 442          */
 443         public boolean isSoneTrusted(Sone origin, Sone target) {
 444                 checkNotNull(origin, "origin must not be null");
 445                 checkNotNull(target, "target must not be null");
 446                 checkArgument(origin.getIdentity() instanceof OwnIdentity, "origin’s identity must be an OwnIdentity");
 447                 return trustedIdentities.containsEntry(origin.getIdentity(), target.getIdentity());
 448         }
 449
 450         /** {@inheritDoc} */
 451         @Override
 452         public Optional<Post> getPost(String postId) {
 453                 return database.getPost(postId);
 454         }
 455
 456         /** {@inheritDocs} */
 457         @Override
 458         public Collection<Post> getPosts(String soneId) {
 459                 return database.getPosts(soneId);
 460         }
 461
 462         /** {@inheritDoc} */
 463         @Override
 464         public Collection<Post> getDirectedPosts(final String recipientId) {
 465                 checkNotNull(recipientId, "recipient must not be null");
 466                 return database.getDirectedPosts(recipientId);
 467         }
 468
 469         /**
 470          * Returns a post reply builder.
 471          *
 472          * @return A new post reply builder
 473          */
 474         public PostReplyBuilder postReplyBuilder() {
 475                 return database.newPostReplyBuilder();
 476         }
 477
 478         /** {@inheritDoc} */
 479         @Override
 480         public Optional<PostReply> getPostReply(String replyId) {
 481                 return database.getPostReply(replyId);
 482         }
 483
 484         /** {@inheritDoc} */
 485         @Override
 486         public List<PostReply> getReplies(final String postId) {
 487                 return database.getReplies(postId);
 488         }
 489
 490         /**
 491          * Returns all Sones that have liked the given post.
 492          *
 493          * @param post
 494          *              The post to get the liking Sones for
 495          * @return The Sones that like the given post
 496          */
 497         public Set<Sone> getLikes(Post post) {
 498                 Set<Sone> sones = new HashSet<Sone>();
 499                 for (Sone sone : getSones()) {
 500                         if (sone.getLikedPostIds().contains(post.getId())) {
 501                                 sones.add(sone);
 502                         }
 503                 }
 504                 return sones;
 505         }
 506
 507         /**
 508          * Returns all Sones that have liked the given reply.
 509          *
 510          * @param reply
 511          *              The reply to get the liking Sones for
 512          * @return The Sones that like the given reply
 513          */
 514         public Set<Sone> getLikes(PostReply reply) {
 515                 Set<Sone> sones = new HashSet<Sone>();
 516                 for (Sone sone : getSones()) {
 517                         if (sone.getLikedReplyIds().contains(reply.getId())) {
 518                                 sones.add(sone);
 519                         }
 520                 }
 521                 return sones;
 522         }
 523
 524         /**
 525          * Returns whether the given post is bookmarked.
 526          *
 527          * @param post
 528          *              The post to check
 529          * @return {@code true} if the given post is bookmarked, {@code false}
 530          *         otherwise
 531          */
 532         public boolean isBookmarked(Post post) {
 533                 return isPostBookmarked(post.getId());
 534         }
 535
 536         /**
 537          * Returns whether the post with the given ID is bookmarked.
 538          *
 539          * @param id
 540          *              The ID of the post to check
 541          * @return {@code true} if the post with the given ID is bookmarked, {@code
 542          *         false} otherwise
 543          */
 544         public boolean isPostBookmarked(String id) {
 545                 synchronized (bookmarkedPosts) {
 546                         return bookmarkedPosts.contains(id);
 547                 }
 548         }
 549
 550         /**
 551          * Returns all currently known bookmarked posts.
 552          *
 553          * @return All bookmarked posts
 554          */
 555         public Set<Post> getBookmarkedPosts() {
 556                 Set<Post> posts = new HashSet<Post>();
 557                 synchronized (bookmarkedPosts) {
 558                         for (String bookmarkedPostId : bookmarkedPosts) {
 559                                 Optional<Post> post = getPost(bookmarkedPostId);
 560                                 if (post.isPresent()) {
 561                                         posts.add(post.get());
 562                                 }
 563                         }
 564                 }
 565                 return posts;
 566         }
 567
 568         public Optional<Album> getAlbum(String albumId) {
 569                 return database.getAlbum(albumId);
 570         }
 571
 572         public Optional<Image> getImage(String imageId) {
 573                 return database.getImage(imageId);
 574         }
 575
 576         /**
 577          * Returns the temporary image with the given ID.
 578          *
 579          * @param imageId
 580          *              The ID of the temporary image
 581          * @return The temporary image, or {@code null} if there is no temporary image
 582          *         with the given ID
 583          */
 584         public TemporaryImage getTemporaryImage(String imageId) {
 585                 synchronized (temporaryImages) {
 586                         return temporaryImages.get(imageId);
 587                 }
 588         }
 589
 590         //
 591         // ACTIONS
 592         //
 593
 594         /**
 595          * Locks the given Sone. A locked Sone will not be inserted by {@link
 596          * SoneInserter} until it is {@link #unlockSone(Sone) unlocked} again.
 597          *
 598          * @param sone
 599          *              The sone to lock
 600          */
 601         public void lockSone(Sone sone) {
 602                 synchronized (lockedSones) {
 603                         if (lockedSones.add(sone)) {
 604                                 eventBus.post(new SoneLockedEvent(sone));
 605                         }
 606                 }
 607         }
 608
 609         /**
 610          * Unlocks the given Sone.
 611          *
 612          * @param sone
 613          *              The sone to unlock
 614          * @see #lockSone(Sone)
 615          */
 616         public void unlockSone(Sone sone) {
 617                 synchronized (lockedSones) {
 618                         if (lockedSones.remove(sone)) {
 619                                 eventBus.post(new SoneUnlockedEvent(sone));
 620                         }
 621                 }
 622         }
 623
 624         /**
 625          * Adds a local Sone from the given own identity.
 626          *
 627          * @param ownIdentity
 628          *              The own identity to create a Sone from
 629          * @return The added (or already existing) Sone
 630          */
 631         public Sone addLocalSone(OwnIdentity ownIdentity) {
 632                 if (ownIdentity == null) {
 633                         logger.log(Level.WARNING, "Given OwnIdentity is null!");
 634                         return null;
 635                 }
 636                 logger.info(String.format("Adding Sone from OwnIdentity: %s", ownIdentity));
 637                 synchronized (sones) {
 638                         final Sone sone;
 639                         try {
 640                                 sone = database.newSoneBuilder().by(ownIdentity).local().build().setInsertUri(new FreenetURI(ownIdentity.getInsertUri())).setRequestUri(new FreenetURI(ownIdentity.getRequestUri()));
 641                         } catch (MalformedURLException mue1) {
 642                                 logger.log(Level.SEVERE, String.format("Could not convert the Identity’s URIs to Freenet URIs: %s, %s", ownIdentity.getInsertUri(), ownIdentity.getRequestUri()), mue1);
 643                                 return null;
 644                         }
 645                         sone.setLatestEdition(Numbers.safeParseLong(ownIdentity.getProperty("Sone.LatestEdition"), (long) 0));
 646                         sone.setClient(new Client("Sone", SonePlugin.VERSION.toString()));
 647                         sone.setKnown(true);
 648                         /* TODO - load posts ’n stuff */
 649                         sones.put(ownIdentity.getId(), sone);
 650                         final SoneInserter soneInserter = new SoneInserter(this, eventBus, freenetInterface, sone);
 651                         soneInserters.put(sone, soneInserter);
 652                         sone.setStatus(SoneStatus.idle);
 653                         loadSone(sone);
 654                         soneInserter.start();
 655                         return sone;
 656                 }
 657         }
 658
 659         /**
 660          * Creates a new Sone for the given own identity.
 661          *
 662          * @param ownIdentity
 663          *              The own identity to create a Sone for
 664          * @return The created Sone
 665          */
 666         public Sone createSone(OwnIdentity ownIdentity) {
 667                 if (!webOfTrustUpdater.addContextWait(ownIdentity, "Sone")) {
 668                         logger.log(Level.SEVERE, String.format("Could not add “Sone” context to own identity: %s", ownIdentity));
 669                         return null;
 670                 }
 671                 Sone sone = addLocalSone(ownIdentity);
 672                 sone.getOptions().addBooleanOption("AutoFollow", new DefaultOption<Boolean>(false));
 673                 sone.getOptions().addBooleanOption("EnableSoneInsertNotifications", new DefaultOption<Boolean>(false));
 674                 sone.getOptions().addBooleanOption("ShowNotification/NewSones", new DefaultOption<Boolean>(true));
 675                 sone.getOptions().addBooleanOption("ShowNotification/NewPosts", new DefaultOption<Boolean>(true));
 676                 sone.getOptions().addBooleanOption("ShowNotification/NewReplies", new DefaultOption<Boolean>(true));
 677                 sone.getOptions().addEnumOption("ShowCustomAvatars", new DefaultOption<ShowCustomAvatars>(ShowCustomAvatars.NEVER));
 678
 679                 followSone(sone, "nwa8lHa271k2QvJ8aa0Ov7IHAV-DFOCFgmDt3X6BpCI");
 680                 touchConfiguration();
 681                 return sone;
 682         }
 683
 684         /**
 685          * Adds the Sone of the given identity.
 686          *
 687          * @param identity
 688          *              The identity whose Sone to add
 689          * @return The added or already existing Sone
 690          */
 691         public Sone addRemoteSone(Identity identity) {
 692                 if (identity == null) {
 693                         logger.log(Level.WARNING, "Given Identity is null!");
 694                         return null;
 695                 }
 696                 synchronized (sones) {
 697                         final Sone sone = database.newSoneBuilder().by(identity).build();
 698                         if (sone.isLocal()) {
 699                                 return sone;
 700                         }
 701                         sone.setIdentity(identity);
 702                         boolean newSone = sone.getRequestUri() == null;
 703                         sone.setRequestUri(SoneUri.create(identity.getRequestUri()));
 704                         sone.setLatestEdition(Numbers.safeParseLong(identity.getProperty("Sone.LatestEdition"), (long) 0));
 705                         if (newSone) {
 706                                 synchronized (knownSones) {
 707                                         newSone = !knownSones.contains(sone.getId());
 708                                 }
 709                                 sone.setKnown(!newSone);
 710                                 if (newSone) {
 711                                         eventBus.post(new NewSoneFoundEvent(sone));
 712                                         for (Sone localSone : getLocalSones()) {
 713                                                 if (localSone.getOptions().getBooleanOption("AutoFollow").get()) {
 714                                                         followSone(localSone, sone.getId());
 715                                                 }
 716                                         }
 717                                 }
 718                         }
 719                         soneDownloader.addSone(sone);
 720                         soneDownloaders.execute(new Runnable() {
 721
 722                                 @Override
 723                                 @SuppressWarnings("synthetic-access")
 724                                 public void run() {
 725                                         soneDownloader.fetchSone(sone, sone.getRequestUri());
 726                                 }
 727
 728                         });
 729                         return sone;
 730                 }
 731         }
 732
 733         /**
 734          * Lets the given local Sone follow the Sone with the given ID.
 735          *
 736          * @param sone
 737          *              The local Sone that should follow another Sone
 738          * @param soneId
 739          *              The ID of the Sone to follow
 740          */
 741         public void followSone(Sone sone, String soneId) {
 742                 checkNotNull(sone, "sone must not be null");
 743                 checkNotNull(soneId, "soneId must not be null");
 744                 sone.addFriend(soneId);
 745                 synchronized (soneFollowingTimes) {
 746                         if (!soneFollowingTimes.containsKey(soneId)) {
 747                                 long now = System.currentTimeMillis();
 748                                 soneFollowingTimes.put(soneId, now);
 749                                 Optional<Sone> followedSone = getSone(soneId);
 750                                 if (!followedSone.isPresent()) {
 751                                         return;
 752                                 }
 753                                 for (Post post : followedSone.get().getPosts()) {
 754                                         if (post.getTime() < now) {
 755                                                 markPostKnown(post);
 756                                         }
 757                                 }
 758                                 for (PostReply reply : followedSone.get().getReplies()) {
 759                                         if (reply.getTime() < now) {
 760                                                 markReplyKnown(reply);
 761                                         }
 762                                 }
 763                         }
 764                 }
 765                 touchConfiguration();
 766         }
 767
 768         /**
 769          * Lets the given local Sone unfollow the Sone with the given ID.
 770          *
 771          * @param sone
 772          *              The local Sone that should unfollow another Sone
 773          * @param soneId
 774          *              The ID of the Sone being unfollowed
 775          */
 776         public void unfollowSone(Sone sone, String soneId) {
 777                 checkNotNull(sone, "sone must not be null");
 778                 checkNotNull(soneId, "soneId must not be null");
 779                 sone.removeFriend(soneId);
 780                 boolean unfollowedSoneStillFollowed = false;
 781                 for (Sone localSone : getLocalSones()) {
 782                         unfollowedSoneStillFollowed |= localSone.hasFriend(soneId);
 783                 }
 784                 if (!unfollowedSoneStillFollowed) {
 785                         synchronized (soneFollowingTimes) {
 786                                 soneFollowingTimes.remove(soneId);
 787                         }
 788                 }
 789                 touchConfiguration();
 790         }
 791
 792         /**
 793          * Sets the trust value of the given origin Sone for the target Sone.
 794          *
 795          * @param origin
 796          *              The origin Sone
 797          * @param target
 798          *              The target Sone
 799          * @param trustValue
 800          *              The trust value (from {@code -100} to {@code 100})
 801          */
 802         public void setTrust(Sone origin, Sone target, int trustValue) {
 803                 checkNotNull(origin, "origin must not be null");
 804                 checkArgument(origin.getIdentity() instanceof OwnIdentity, "origin must be a local Sone");
 805                 checkNotNull(target, "target must not be null");
 806                 checkArgument((trustValue >= -100) && (trustValue <= 100), "trustValue must be within [-100, 100]");
 807                 webOfTrustUpdater.setTrust((OwnIdentity) origin.getIdentity(), target.getIdentity(), trustValue, preferences.getTrustComment());
 808         }
 809
 810         /**
 811          * Removes any trust assignment for the given target Sone.
 812          *
 813          * @param origin
 814          *              The trust origin
 815          * @param target
 816          *              The trust target
 817          */
 818         public void removeTrust(Sone origin, Sone target) {
 819                 checkNotNull(origin, "origin must not be null");
 820                 checkNotNull(target, "target must not be null");
 821                 checkArgument(origin.getIdentity() instanceof OwnIdentity, "origin must be a local Sone");
 822                 webOfTrustUpdater.setTrust((OwnIdentity) origin.getIdentity(), target.getIdentity(), null, null);
 823         }
 824
 825         /**
 826          * Assigns the configured positive trust value for the given target.
 827          *
 828          * @param origin
 829          *              The trust origin
 830          * @param target
 831          *              The trust target
 832          */
 833         public void trustSone(Sone origin, Sone target) {
 834                 setTrust(origin, target, preferences.getPositiveTrust());
 835         }
 836
 837         /**
 838          * Assigns the configured negative trust value for the given target.
 839          *
 840          * @param origin
 841          *              The trust origin
 842          * @param target
 843          *              The trust target
 844          */
 845         public void distrustSone(Sone origin, Sone target) {
 846                 setTrust(origin, target, preferences.getNegativeTrust());
 847         }
 848
 849         /**
 850          * Removes the trust assignment for the given target.
 851          *
 852          * @param origin
 853          *              The trust origin
 854          * @param target
 855          *              The trust target
 856          */
 857         public void untrustSone(Sone origin, Sone target) {
 858                 removeTrust(origin, target);
 859         }
 860
 861         /**
 862          * Updates the stored Sone with the given Sone.
 863          *
 864          * @param sone
 865          *              The updated Sone
 866          */
 867         public void updateSone(Sone sone) {
 868                 updateSone(sone, false);
 869         }
 870
 871         /**
 872          * Updates the stored Sone with the given Sone. If {@code soneRescueMode} is
 873          * {@code true}, an older Sone than the current Sone can be given to restore an
 874          * old state.
 875          *
 876          * @param sone
 877          *              The Sone to update
 878          * @param soneRescueMode
 879          *              {@code true} if the stored Sone should be updated regardless of the age of
 880          *              the given Sone
 881          */
 882         public void updateSone(Sone sone, boolean soneRescueMode) {
 883                 Optional<Sone> storedSone = getSone(sone.getId());
 884                 if (storedSone.isPresent()) {
 885                         if (!soneRescueMode && !(sone.getTime() > storedSone.get().getTime())) {
 886                                 logger.log(Level.FINE, String.format("Downloaded Sone %s is not newer than stored Sone %s.", sone, storedSone));
 887                                 return;
 888                         }
 889                         /* find removed posts. */
 890                         Collection<Post> existingPosts = database.getPosts(sone.getId());
 891                         for (Post oldPost : existingPosts) {
 892                                 if (!sone.getPosts().contains(oldPost)) {
 893                                         eventBus.post(new PostRemovedEvent(oldPost));
 894                                 }
 895                         }
 896                         /* find new posts. */
 897                         for (Post newPost : sone.getPosts()) {
 898                                 if (existingPosts.contains(newPost)) {
 899                                         continue;
 900                                 }
 901                                 if (newPost.getTime() < getSoneFollowingTime(sone)) {
 902                                         newPost.setKnown(true);
 903                                 } else if (!newPost.isKnown()) {
 904                                         eventBus.post(new NewPostFoundEvent(newPost));
 905                                 }
 906                         }
 907                         /* store posts. */
 908                         database.storePosts(sone, sone.getPosts());
 909                         if (!soneRescueMode) {
 910                                 for (PostReply reply : storedSone.get().getReplies()) {
 911                                         if (!sone.getReplies().contains(reply)) {
 912                                                 eventBus.post(new PostReplyRemovedEvent(reply));
 913                                         }
 914                                 }
 915                         }
 916                         Set<PostReply> storedReplies = storedSone.get().getReplies();
 917                         for (PostReply reply : sone.getReplies()) {
 918                                 if (storedReplies.contains(reply)) {
 919                                         continue;
 920                                 }
 921                                 if (reply.getTime() < getSoneFollowingTime(sone)) {
 922                                         reply.setKnown(true);
 923                                 } else if (!reply.isKnown()) {
 924                                         eventBus.post(new NewPostReplyFoundEvent(reply));
 925                                 }
 926                         }
 927                         database.storePostReplies(sone, sone.getReplies());
 928                         for (Album album : storedSone.get().getRootAlbum().getAlbums()) {
 929                                 database.removeAlbum(album);
 930                                 for (Image image : album.getImages()) {
 931                                         database.removeImage(image);
 932                                 }
 933                         }
 934                         for (Album album : sone.getRootAlbum().getAlbums()) {
 935                                 database.storeAlbum(album);
 936                                 for (Image image : album.getImages()) {
 937                                         database.storeImage(image);
 938                                 }
 939                         }
 940                         synchronized (sones) {
 941                                 sone.setOptions(storedSone.get().getOptions());
 942                                 sone.setKnown(storedSone.get().isKnown());
 943                                 sone.setStatus((sone.getTime() == 0) ? SoneStatus.unknown : SoneStatus.idle);
 944                                 if (sone.isLocal()) {
 945                                         soneInserters.get(storedSone.get()).setSone(sone);
 946                                         touchConfiguration();
 947                                 }
 948                                 sones.put(sone.getId(), sone);
 949                         }
 950                 }
 951         }
 952
 953         /**
 954          * Deletes the given Sone. This will remove the Sone from the {@link
 955          * #getLocalSones() local Sones}, stop its {@link SoneInserter} and remove the
 956          * context from its identity.
 957          *
 958          * @param sone
 959          *              The Sone to delete
 960          */
 961         public void deleteSone(Sone sone) {
 962                 if (!(sone.getIdentity() instanceof OwnIdentity)) {
 963                         logger.log(Level.WARNING, String.format("Tried to delete Sone of non-own identity: %s", sone));
 964                         return;
 965                 }
 966                 synchronized (sones) {
 967                         if (!getLocalSones().contains(sone)) {
 968                                 logger.log(Level.WARNING, String.format("Tried to delete non-local Sone: %s", sone));
 969                                 return;
 970                         }
 971                         sones.remove(sone.getId());
 972                         SoneInserter soneInserter = soneInserters.remove(sone);
 973                         soneInserter.stop();
 974                 }
 975                 webOfTrustUpdater.removeContext((OwnIdentity) sone.getIdentity(), "Sone");
 976                 webOfTrustUpdater.removeProperty((OwnIdentity) sone.getIdentity(), "Sone.LatestEdition");
 977                 try {
 978                         configuration.getLongValue("Sone/" + sone.getId() + "/Time").setValue(null);
 979                 } catch (ConfigurationException ce1) {
 980                         logger.log(Level.WARNING, "Could not remove Sone from configuration!", ce1);
 981                 }
 982         }
 983
 984         /**
 985          * Marks the given Sone as known. If the Sone was not {@link Post#isKnown()
 986          * known} before, a {@link MarkSoneKnownEvent} is fired.
 987          *
 988          * @param sone
 989          *              The Sone to mark as known
 990          */
 991         public void markSoneKnown(Sone sone) {
 992                 if (!sone.isKnown()) {
 993                         sone.setKnown(true);
 994                         synchronized (knownSones) {
 995                                 knownSones.add(sone.getId());
 996                         }
 997                         eventBus.post(new MarkSoneKnownEvent(sone));
 998                         touchConfiguration();
 999                 }
1000         }
1001
1002         /**
1003          * Loads and updates the given Sone from the configuration. If any error is
1004          * encountered, loading is aborted and the given Sone is not changed.
1005          *
1006          * @param sone
1007          *              The Sone to load and update
1008          */
1009         public void loadSone(Sone sone) {
1010                 if (!sone.isLocal()) {
1011                         logger.log(Level.FINE, String.format("Tried to load non-local Sone: %s", sone));
1012                         return;
1013                 }
1014                 logger.info(String.format("Loading local Sone: %s", sone));
1015
1016                 /* initialize options. */
1017                 sone.getOptions().addBooleanOption("AutoFollow", new DefaultOption<Boolean>(false));
1018                 sone.getOptions().addBooleanOption("EnableSoneInsertNotifications", new DefaultOption<Boolean>(false));
1019                 sone.getOptions().addBooleanOption("ShowNotification/NewSones", new DefaultOption<Boolean>(true));
1020                 sone.getOptions().addBooleanOption("ShowNotification/NewPosts", new DefaultOption<Boolean>(true));
1021                 sone.getOptions().addBooleanOption("ShowNotification/NewReplies", new DefaultOption<Boolean>(true));
1022                 sone.getOptions().addEnumOption("ShowCustomAvatars", new DefaultOption<ShowCustomAvatars>(ShowCustomAvatars.NEVER));
1023
1024                 /* load Sone. */
1025                 String sonePrefix = "Sone/" + sone.getId();
1026                 Long soneTime = configuration.getLongValue(sonePrefix + "/Time").getValue(null);
1027                 if (soneTime == null) {
1028                         logger.log(Level.INFO, "Could not load Sone because no Sone has been saved.");
1029                         return;
1030                 }
1031                 String lastInsertFingerprint = configuration.getStringValue(sonePrefix + "/LastInsertFingerprint").getValue("");
1032
1033                 /* load profile. */
1034                 Profile profile = new Profile(sone);
1035                 profile.setFirstName(configuration.getStringValue(sonePrefix + "/Profile/FirstName").getValue(null));
1036                 profile.setMiddleName(configuration.getStringValue(sonePrefix + "/Profile/MiddleName").getValue(null));
1037                 profile.setLastName(configuration.getStringValue(sonePrefix + "/Profile/LastName").getValue(null));
1038                 profile.setBirthDay(configuration.getIntValue(sonePrefix + "/Profile/BirthDay").getValue(null));
1039                 profile.setBirthMonth(configuration.getIntValue(sonePrefix + "/Profile/BirthMonth").getValue(null));
1040                 profile.setBirthYear(configuration.getIntValue(sonePrefix + "/Profile/BirthYear").getValue(null));
1041
1042                 /* load profile fields. */
1043                 while (true) {
1044                         String fieldPrefix = sonePrefix + "/Profile/Fields/" + profile.getFields().size();
1045                         String fieldName = configuration.getStringValue(fieldPrefix + "/Name").getValue(null);
1046                         if (fieldName == null) {
1047                                 break;
1048                         }
1049                         String fieldValue = configuration.getStringValue(fieldPrefix + "/Value").getValue("");
1050                         profile.addField(fieldName).setValue(fieldValue);
1051                 }
1052
1053                 /* load posts. */
1054                 Set<Post> posts = new HashSet<Post>();
1055                 while (true) {
1056                         String postPrefix = sonePrefix + "/Posts/" + posts.size();
1057                         String postId = configuration.getStringValue(postPrefix + "/ID").getValue(null);
1058                         if (postId == null) {
1059                                 break;
1060                         }
1061                         String postRecipientId = configuration.getStringValue(postPrefix + "/Recipient").getValue(null);
1062                         long postTime = configuration.getLongValue(postPrefix + "/Time").getValue((long) 0);
1063                         String postText = configuration.getStringValue(postPrefix + "/Text").getValue(null);
1064                         if ((postTime == 0) || (postText == null)) {
1065                                 logger.log(Level.WARNING, "Invalid post found, aborting load!");
1066                                 return;
1067                         }
1068                         PostBuilder postBuilder = sone.newPostBuilder().withId(postId).withTime(postTime).withText(postText);
1069                         if ((postRecipientId != null) && (postRecipientId.length() == 43)) {
1070                                 postBuilder.to(of(postRecipientId));
1071                         }
1072                         posts.add(postBuilder.build(Optional.<PostCreated>absent()));
1073                 }
1074
1075                 /* load replies. */
1076                 Set<PostReply> replies = new HashSet<PostReply>();
1077                 while (true) {
1078                         String replyPrefix = sonePrefix + "/Replies/" + replies.size();
1079                         String replyId = configuration.getStringValue(replyPrefix + "/ID").getValue(null);
1080                         if (replyId == null) {
1081                                 break;
1082                         }
1083                         String postId = configuration.getStringValue(replyPrefix + "/Post/ID").getValue(null);
1084                         long replyTime = configuration.getLongValue(replyPrefix + "/Time").getValue((long) 0);
1085                         String replyText = configuration.getStringValue(replyPrefix + "/Text").getValue(null);
1086                         if ((postId == null) || (replyTime == 0) || (replyText == null)) {
1087                                 logger.log(Level.WARNING, "Invalid reply found, aborting load!");
1088                                 return;
1089                         }
1090                         PostReplyBuilder postReplyBuilder = postReplyBuilder().withId(replyId).from(sone.getId()).to(postId).withTime(replyTime).withText(replyText);
1091                         replies.add(postReplyBuilder.build());
1092                 }
1093
1094                 /* load post likes. */
1095                 Set<String> likedPostIds = new HashSet<String>();
1096                 while (true) {
1097                         String likedPostId = configuration.getStringValue(sonePrefix + "/Likes/Post/" + likedPostIds.size() + "/ID").getValue(null);
1098                         if (likedPostId == null) {
1099                                 break;
1100                         }
1101                         likedPostIds.add(likedPostId);
1102                 }
1103
1104                 /* load reply likes. */
1105                 Set<String> likedReplyIds = new HashSet<String>();
1106                 while (true) {
1107                         String likedReplyId = configuration.getStringValue(sonePrefix + "/Likes/Reply/" + likedReplyIds.size() + "/ID").getValue(null);
1108                         if (likedReplyId == null) {
1109                                 break;
1110                         }
1111                         likedReplyIds.add(likedReplyId);
1112                 }
1113
1114                 /* load friends. */
1115                 Set<String> friends = new HashSet<String>();
1116                 while (true) {
1117                         String friendId = configuration.getStringValue(sonePrefix + "/Friends/" + friends.size() + "/ID").getValue(null);
1118                         if (friendId == null) {
1119                                 break;
1120                         }
1121                         friends.add(friendId);
1122                 }
1123
1124                 /* load albums. */
1125                 Map<String, Album> albums = Maps.newHashMap();
1126                 int albumCounter = 0;
1127                 while (true) {
1128                         String albumPrefix = sonePrefix + "/Albums/" + albumCounter++;
1129                         String albumId = configuration.getStringValue(albumPrefix + "/ID").getValue(null);
1130                         if (albumId == null) {
1131                                 break;
1132                         }
1133                         String albumTitle = configuration.getStringValue(albumPrefix + "/Title").getValue(null);
1134                         String albumDescription = configuration.getStringValue(albumPrefix + "/Description").getValue(null);
1135                         String albumParentId = configuration.getStringValue(albumPrefix + "/Parent").getValue(null);
1136                         String albumImageId = configuration.getStringValue(albumPrefix + "/AlbumImage").getValue(null);
1137                         if ((albumTitle == null) || (albumDescription == null)) {
1138                                 logger.log(Level.WARNING, "Invalid album found, aborting load!");
1139                                 return;
1140                         }
1141                         Album parentAlbum = sone.getRootAlbum();
1142                         if (albumParentId != null) {
1143                                 parentAlbum = albums.get(albumParentId);
1144                         }
1145                         Album album = parentAlbum.newAlbumBuilder().withId(albumId).build().modify().setTitle(albumTitle).setDescription(albumDescription).setAlbumImage(albumImageId).update();
1146                         albums.put(album.getId(), album);
1147                 }
1148
1149                 /* load images. */
1150                 int imageCounter = 0;
1151                 while (true) {
1152                         String imagePrefix = sonePrefix + "/Images/" + imageCounter++;
1153                         String imageId = configuration.getStringValue(imagePrefix + "/ID").getValue(null);
1154                         if (imageId == null) {
1155                                 break;
1156                         }
1157                         String albumId = configuration.getStringValue(imagePrefix + "/Album").getValue(null);
1158                         String key = configuration.getStringValue(imagePrefix + "/Key").getValue(null);
1159                         String title = configuration.getStringValue(imagePrefix + "/Title").getValue(null);
1160                         String description = configuration.getStringValue(imagePrefix + "/Description").getValue(null);
1161                         Long creationTime = configuration.getLongValue(imagePrefix + "/CreationTime").getValue(null);
1162                         Integer width = configuration.getIntValue(imagePrefix + "/Width").getValue(null);
1163                         Integer height = configuration.getIntValue(imagePrefix + "/Height").getValue(null);
1164                         if ((albumId == null) || (key == null) || (title == null) || (description == null) || (creationTime == null) || (width == null) || (height == null)) {
1165                                 logger.log(Level.WARNING, "Invalid image found, aborting load!");
1166                                 return;
1167                         }
1168                         Album album = albums.get(albumId);
1169                         if (album == null) {
1170                                 logger.log(Level.WARNING, "Invalid album image encountered, aborting load!");
1171                                 return;
1172                         }
1173                         album.newImageBuilder().withId(imageId).created(creationTime).at(key).sized(width, height).build().modify().setTitle(title).setDescription(description).update();
1174                 }
1175
1176                 /* load avatar. */
1177                 String avatarId = configuration.getStringValue(sonePrefix + "/Profile/Avatar").getValue(null);
1178                 if (avatarId != null) {
1179                         profile.setAvatar(getImage(avatarId).orNull());
1180                 }
1181
1182                 /* load options. */
1183                 sone.getOptions().getBooleanOption("AutoFollow").set(configuration.getBooleanValue(sonePrefix + "/Options/AutoFollow").getValue(null));
1184                 sone.getOptions().getBooleanOption("EnableSoneInsertNotifications").set(configuration.getBooleanValue(sonePrefix + "/Options/EnableSoneInsertNotifications").getValue(null));
1185                 sone.getOptions().getBooleanOption("ShowNotification/NewSones").set(configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewSones").getValue(null));
1186                 sone.getOptions().getBooleanOption("ShowNotification/NewPosts").set(configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewPosts").getValue(null));
1187                 sone.getOptions().getBooleanOption("ShowNotification/NewReplies").set(configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewReplies").getValue(null));
1188                 sone.getOptions().<ShowCustomAvatars>getEnumOption("ShowCustomAvatars").set(ShowCustomAvatars.valueOf(configuration.getStringValue(sonePrefix + "/Options/ShowCustomAvatars").getValue(ShowCustomAvatars.NEVER.name())));
1189
1190                 /* if we’re still here, Sone was loaded successfully. */
1191                 synchronized (sone) {
1192                         sone.setTime(soneTime);
1193                         sone.setProfile(profile);
1194                         sone.setPosts(posts);
1195                         sone.setReplies(replies);
1196                         sone.setLikePostIds(likedPostIds);
1197                         sone.setLikeReplyIds(likedReplyIds);
1198                         for (String friendId : friends) {
1199                                 followSone(sone, friendId);
1200                         }
1201                         for (Album album : sone.getRootAlbum().getAlbums()) {
1202                                 album.remove();
1203                         }
1204                         soneInserters.get(sone).setLastInsertFingerprint(lastInsertFingerprint);
1205                 }
1206                 synchronized (knownSones) {
1207                         for (String friend : friends) {
1208                                 knownSones.add(friend);
1209                         }
1210                 }
1211                 database.storePosts(sone, posts);
1212                 for (Post post : posts) {
1213                         post.setKnown(true);
1214                 }
1215                 database.storePostReplies(sone, replies);
1216                 for (PostReply reply : replies) {
1217                         reply.setKnown(true);
1218                 }
1219
1220                 logger.info(String.format("Sone loaded successfully: %s", sone));
1221         }
1222
1223         /**
1224          * Deletes the given post.
1225          *
1226          * @param post
1227          *              The post to delete
1228          */
1229         public void deletePost(Post post) {
1230                 if (!post.getSone().isLocal()) {
1231                         logger.log(Level.WARNING, String.format("Tried to delete post of non-local Sone: %s", post.getSone()));
1232                         return;
1233                 }
1234                 database.removePost(post);
1235                 eventBus.post(new PostRemovedEvent(post));
1236                 markPostKnown(post);
1237                 touchConfiguration();
1238         }
1239
1240         /**
1241          * Marks the given post as known, if it is currently not a known post
1242          * (according to {@link Post#isKnown()}).
1243          *
1244          * @param post
1245          *              The post to mark as known
1246          */
1247         public void markPostKnown(Post post) {
1248                 post.setKnown(true);
1249                 eventBus.post(new MarkPostKnownEvent(post));
1250                 touchConfiguration();
1251                 for (PostReply reply : getReplies(post.getId())) {
1252                         markReplyKnown(reply);
1253                 }
1254         }
1255
1256         /**
1257          * Bookmarks the given post.
1258          *
1259          * @param post
1260          *              The post to bookmark
1261          */
1262         public void bookmark(Post post) {
1263                 bookmarkPost(post.getId());
1264         }
1265
1266         /**
1267          * Bookmarks the post with the given ID.
1268          *
1269          * @param id
1270          *              The ID of the post to bookmark
1271          */
1272         public void bookmarkPost(String id) {
1273                 synchronized (bookmarkedPosts) {
1274                         bookmarkedPosts.add(id);
1275                 }
1276         }
1277
1278         /**
1279          * Removes the given post from the bookmarks.
1280          *
1281          * @param post
1282          *              The post to unbookmark
1283          */
1284         public void unbookmark(Post post) {
1285                 unbookmarkPost(post.getId());
1286         }
1287
1288         /**
1289          * Removes the post with the given ID from the bookmarks.
1290          *
1291          * @param id
1292          *              The ID of the post to unbookmark
1293          */
1294         public void unbookmarkPost(String id) {
1295                 synchronized (bookmarkedPosts) {
1296                         bookmarkedPosts.remove(id);
1297                 }
1298         }
1299
1300         /**
1301          * Creates a new reply.
1302          *
1303          * @param sone
1304          *              The Sone that creates the reply
1305          * @param post
1306          *              The post that this reply refers to
1307          * @param text
1308          *              The text of the reply
1309          * @return The created reply
1310          */
1311         public PostReply createReply(Sone sone, Post post, String text) {
1312                 checkNotNull(text, "text must not be null");
1313                 checkArgument(text.trim().length() > 0, "text must not be empty");
1314                 if (!sone.isLocal()) {
1315                         logger.log(Level.FINE, String.format("Tried to create reply for non-local Sone: %s", sone));
1316                         return null;
1317                 }
1318                 PostReplyBuilder postReplyBuilder = postReplyBuilder();
1319                 postReplyBuilder.from(sone.getId()).to(post.getId()).withText(text.trim());
1320                 final PostReply reply = postReplyBuilder.build();
1321                 database.storePostReply(reply);
1322                 eventBus.post(new NewPostReplyFoundEvent(reply));
1323                 sone.addReply(reply);
1324                 touchConfiguration();
1325                 localElementTicker.schedule(new Runnable() {
1326
1327                         /**
1328                          * {@inheritDoc}
1329                          */
1330                         @Override
1331                         public void run() {
1332                                 markReplyKnown(reply);
1333                         }
1334                 }, 10, TimeUnit.SECONDS);
1335                 return reply;
1336         }
1337
1338         /**
1339          * Deletes the given reply.
1340          *
1341          * @param reply
1342          *              The reply to delete
1343          */
1344         public void deleteReply(PostReply reply) {
1345                 Sone sone = reply.getSone();
1346                 if (!sone.isLocal()) {
1347                         logger.log(Level.FINE, String.format("Tried to delete non-local reply: %s", reply));
1348                         return;
1349                 }
1350                 database.removePostReply(reply);
1351                 markReplyKnown(reply);
1352                 sone.removeReply(reply);
1353                 touchConfiguration();
1354         }
1355
1356         /**
1357          * Marks the given reply as known, if it is currently not a known reply
1358          * (according to {@link Reply#isKnown()}).
1359          *
1360          * @param reply
1361          *              The reply to mark as known
1362          */
1363         public void markReplyKnown(PostReply reply) {
1364                 boolean previouslyKnown = reply.isKnown();
1365                 reply.setKnown(true);
1366                 eventBus.post(new MarkPostReplyKnownEvent(reply));
1367                 if (!previouslyKnown) {
1368                         touchConfiguration();
1369                 }
1370         }
1371
1372         /**
1373          * Creates a new image.
1374          *
1375          * @param sone
1376          *              The Sone creating the image
1377          * @param album
1378          *              The album the image will be inserted into
1379          * @param temporaryImage
1380          *              The temporary image to create the image from
1381          * @return The newly created image
1382          */
1383         public Image createImage(Sone sone, Album album, TemporaryImage temporaryImage) {
1384                 checkNotNull(sone, "sone must not be null");
1385                 checkNotNull(album, "album must not be null");
1386                 checkNotNull(temporaryImage, "temporaryImage must not be null");
1387                 checkArgument(sone.isLocal(), "sone must be a local Sone");
1388                 checkArgument(sone.equals(album.getSone()), "album must belong to the given Sone");
1389                 Image image = album.newImageBuilder().withId(temporaryImage.getId()).sized(temporaryImage.getWidth(), temporaryImage.getHeight()).build();
1390                 imageInserter.insertImage(temporaryImage, image);
1391                 return image;
1392         }
1393
1394         /**
1395          * Deletes the given image. This method will also delete a matching temporary
1396          * image.
1397          *
1398          * @param image
1399          *              The image to delete
1400          * @see #deleteTemporaryImage(TemporaryImage)
1401          */
1402         public void deleteImage(Image image) {
1403                 checkNotNull(image, "image must not be null");
1404                 checkArgument(image.getSone().isLocal(), "image must belong to a local Sone");
1405                 deleteTemporaryImage(image.getId());
1406                 image.remove();
1407                 touchConfiguration();
1408         }
1409
1410         /**
1411          * Creates a new temporary image.
1412          *
1413          * @param mimeType
1414          *              The MIME type of the temporary image
1415          * @param imageData
1416          *              The encoded data of the image
1417          * @return The temporary image
1418          */
1419         public TemporaryImage createTemporaryImage(String mimeType, byte[] imageData, int width, int height) {
1420                 TemporaryImage temporaryImage = new TemporaryImage(mimeType, imageData, width, height);
1421                 synchronized (temporaryImages) {
1422                         temporaryImages.put(temporaryImage.getId(), temporaryImage);
1423                 }
1424                 return temporaryImage;
1425         }
1426
1427         /**
1428          * Deletes the given temporary image.
1429          *
1430          * @param temporaryImage
1431          *              The temporary image to delete
1432          */
1433         public void deleteTemporaryImage(TemporaryImage temporaryImage) {
1434                 checkNotNull(temporaryImage, "temporaryImage must not be null");
1435                 deleteTemporaryImage(temporaryImage.getId());
1436         }
1437
1438         /**
1439          * Deletes the temporary image with the given ID.
1440          *
1441          * @param imageId
1442          *              The ID of the temporary image to delete
1443          */
1444         public void deleteTemporaryImage(String imageId) {
1445                 checkNotNull(imageId, "imageId must not be null");
1446                 synchronized (temporaryImages) {
1447                         temporaryImages.remove(imageId);
1448                 }
1449                 Optional<Image> image = getImage(imageId);
1450                 if (image.isPresent()) {
1451                         imageInserter.cancelImageInsert(image.get());
1452                 }
1453         }
1454
1455         /**
1456          * Notifies the core that the configuration, either of the core or of a single
1457          * local Sone, has changed, and that the configuration should be saved.
1458          */
1459         public void touchConfiguration() {
1460                 lastConfigurationUpdate = System.currentTimeMillis();
1461         }
1462
1463         //
1464         // SERVICE METHODS
1465         //
1466
1467         /** Starts the core. */
1468         @Override
1469         public void serviceStart() {
1470                 loadConfiguration();
1471                 updateChecker.start();
1472                 identityManager.start();
1473                 webOfTrustUpdater.init();
1474                 webOfTrustUpdater.start();
1475                 database.start();
1476         }
1477
1478         /** {@inheritDoc} */
1479         @Override
1480         public void serviceRun() {
1481                 long lastSaved = System.currentTimeMillis();
1482                 while (!shouldStop()) {
1483                         sleep(1000);
1484                         long now = System.currentTimeMillis();
1485                         if (shouldStop() || ((lastConfigurationUpdate > lastSaved) && ((now - lastConfigurationUpdate) > 5000))) {
1486                                 for (Sone localSone : getLocalSones()) {
1487                                         saveSone(localSone);
1488                                 }
1489                                 saveConfiguration();
1490                                 lastSaved = now;
1491                         }
1492                 }
1493         }
1494
1495         /** Stops the core. */
1496         @Override
1497         public void serviceStop() {
1498                 localElementTicker.shutdownNow();
1499                 synchronized (sones) {
1500                         for (Entry<Sone, SoneInserter> soneInserter : soneInserters.entrySet()) {
1501                                 soneInserter.getValue().stop();
1502                                 saveSone(soneInserter.getKey());
1503                         }
1504                 }
1505                 saveConfiguration();
1506                 database.stop();
1507                 webOfTrustUpdater.stop();
1508                 updateChecker.stop();
1509                 soneDownloader.stop();
1510                 soneDownloaders.shutdown();
1511                 identityManager.stop();
1512         }
1513
1514         //
1515         // PRIVATE METHODS
1516         //
1517
1518         /**
1519          * Saves the given Sone. This will persist all local settings for the given
1520          * Sone, such as the friends list and similar, private options.
1521          *
1522          * @param sone
1523          *              The Sone to save
1524          */
1525         private synchronized void saveSone(Sone sone) {
1526                 if (!sone.isLocal()) {
1527                         logger.log(Level.FINE, String.format("Tried to save non-local Sone: %s", sone));
1528                         return;
1529                 }
1530                 if (!(sone.getIdentity() instanceof OwnIdentity)) {
1531                         logger.log(Level.WARNING, String.format("Local Sone without OwnIdentity found, refusing to save: %s", sone));
1532                         return;
1533                 }
1534
1535                 logger.log(Level.INFO, String.format("Saving Sone: %s", sone));
1536                 try {
1537                         /* save Sone into configuration. */
1538                         String sonePrefix = "Sone/" + sone.getId();
1539                         configuration.getLongValue(sonePrefix + "/Time").setValue(sone.getTime());
1540                         configuration.getStringValue(sonePrefix + "/LastInsertFingerprint").setValue(soneInserters.get(sone).getLastInsertFingerprint());
1541
1542                         /* save profile. */
1543                         Profile profile = sone.getProfile();
1544                         configuration.getStringValue(sonePrefix + "/Profile/FirstName").setValue(profile.getFirstName());
1545                         configuration.getStringValue(sonePrefix + "/Profile/MiddleName").setValue(profile.getMiddleName());
1546                         configuration.getStringValue(sonePrefix + "/Profile/LastName").setValue(profile.getLastName());
1547                         configuration.getIntValue(sonePrefix + "/Profile/BirthDay").setValue(profile.getBirthDay());
1548                         configuration.getIntValue(sonePrefix + "/Profile/BirthMonth").setValue(profile.getBirthMonth());
1549                         configuration.getIntValue(sonePrefix + "/Profile/BirthYear").setValue(profile.getBirthYear());
1550                         configuration.getStringValue(sonePrefix + "/Profile/Avatar").setValue(profile.getAvatar());
1551
1552                         /* save profile fields. */
1553                         int fieldCounter = 0;
1554                         for (Field profileField : profile.getFields()) {
1555                                 String fieldPrefix = sonePrefix + "/Profile/Fields/" + fieldCounter++;
1556                                 configuration.getStringValue(fieldPrefix + "/Name").setValue(profileField.getName());
1557                                 configuration.getStringValue(fieldPrefix + "/Value").setValue(profileField.getValue());
1558                         }
1559                         configuration.getStringValue(sonePrefix + "/Profile/Fields/" + fieldCounter + "/Name").setValue(null);
1560
1561                         /* save posts. */
1562                         int postCounter = 0;
1563                         for (Post post : sone.getPosts()) {
1564                                 String postPrefix = sonePrefix + "/Posts/" + postCounter++;
1565                                 configuration.getStringValue(postPrefix + "/ID").setValue(post.getId());
1566                                 configuration.getStringValue(postPrefix + "/Recipient").setValue(post.getRecipientId().orNull());
1567                                 configuration.getLongValue(postPrefix + "/Time").setValue(post.getTime());
1568                                 configuration.getStringValue(postPrefix + "/Text").setValue(post.getText());
1569                         }
1570                         configuration.getStringValue(sonePrefix + "/Posts/" + postCounter + "/ID").setValue(null);
1571
1572                         /* save replies. */
1573                         int replyCounter = 0;
1574                         for (PostReply reply : sone.getReplies()) {
1575                                 String replyPrefix = sonePrefix + "/Replies/" + replyCounter++;
1576                                 configuration.getStringValue(replyPrefix + "/ID").setValue(reply.getId());
1577                                 configuration.getStringValue(replyPrefix + "/Post/ID").setValue(reply.getPostId());
1578                                 configuration.getLongValue(replyPrefix + "/Time").setValue(reply.getTime());
1579                                 configuration.getStringValue(replyPrefix + "/Text").setValue(reply.getText());
1580                         }
1581                         configuration.getStringValue(sonePrefix + "/Replies/" + replyCounter + "/ID").setValue(null);
1582
1583                         /* save post likes. */
1584                         int postLikeCounter = 0;
1585                         for (String postId : sone.getLikedPostIds()) {
1586                                 configuration.getStringValue(sonePrefix + "/Likes/Post/" + postLikeCounter++ + "/ID").setValue(postId);
1587                         }
1588                         configuration.getStringValue(sonePrefix + "/Likes/Post/" + postLikeCounter + "/ID").setValue(null);
1589
1590                         /* save reply likes. */
1591                         int replyLikeCounter = 0;
1592                         for (String replyId : sone.getLikedReplyIds()) {
1593                                 configuration.getStringValue(sonePrefix + "/Likes/Reply/" + replyLikeCounter++ + "/ID").setValue(replyId);
1594                         }
1595                         configuration.getStringValue(sonePrefix + "/Likes/Reply/" + replyLikeCounter + "/ID").setValue(null);
1596
1597                         /* save friends. */
1598                         int friendCounter = 0;
1599                         for (String friendId : sone.getFriends()) {
1600                                 configuration.getStringValue(sonePrefix + "/Friends/" + friendCounter++ + "/ID").setValue(friendId);
1601                         }
1602                         configuration.getStringValue(sonePrefix + "/Friends/" + friendCounter + "/ID").setValue(null);
1603
1604                         /* save albums. first, collect in a flat structure, top-level first. */
1605                         List<Album> albums = from(sone.getRootAlbum().getAlbums()).transformAndConcat(Album.FLATTENER).toList();
1606
1607                         int albumCounter = 0;
1608                         for (Album album : albums) {
1609                                 String albumPrefix = sonePrefix + "/Albums/" + albumCounter++;
1610                                 configuration.getStringValue(albumPrefix + "/ID").setValue(album.getId());
1611                                 configuration.getStringValue(albumPrefix + "/Title").setValue(album.getTitle());
1612                                 configuration.getStringValue(albumPrefix + "/Description").setValue(album.getDescription());
1613                                 configuration.getStringValue(albumPrefix + "/Parent").setValue(album.getParent().equals(sone.getRootAlbum()) ? null : album.getParent().getId());
1614                                 configuration.getStringValue(albumPrefix + "/AlbumImage").setValue(album.getAlbumImage().transform(GET_ID).orNull());
1615                         }
1616                         configuration.getStringValue(sonePrefix + "/Albums/" + albumCounter + "/ID").setValue(null);
1617
1618                         /* save images. */
1619                         int imageCounter = 0;
1620                         for (Album album : albums) {
1621                                 for (Image image : album.getImages()) {
1622                                         if (!image.isInserted()) {
1623                                                 continue;
1624                                         }
1625                                         String imagePrefix = sonePrefix + "/Images/" + imageCounter++;
1626                                         configuration.getStringValue(imagePrefix + "/ID").setValue(image.getId());
1627                                         configuration.getStringValue(imagePrefix + "/Album").setValue(album.getId());
1628                                         configuration.getStringValue(imagePrefix + "/Key").setValue(image.getKey());
1629                                         configuration.getStringValue(imagePrefix + "/Title").setValue(image.getTitle());
1630                                         configuration.getStringValue(imagePrefix + "/Description").setValue(image.getDescription());
1631                                         configuration.getLongValue(imagePrefix + "/CreationTime").setValue(image.getCreationTime());
1632                                         configuration.getIntValue(imagePrefix + "/Width").setValue(image.getWidth());
1633                                         configuration.getIntValue(imagePrefix + "/Height").setValue(image.getHeight());
1634                                 }
1635                         }
1636                         configuration.getStringValue(sonePrefix + "/Images/" + imageCounter + "/ID").setValue(null);
1637
1638                         /* save options. */
1639                         configuration.getBooleanValue(sonePrefix + "/Options/AutoFollow").setValue(sone.getOptions().getBooleanOption("AutoFollow").getReal());
1640                         configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewSones").setValue(sone.getOptions().getBooleanOption("ShowNotification/NewSones").getReal());
1641                         configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewPosts").setValue(sone.getOptions().getBooleanOption("ShowNotification/NewPosts").getReal());
1642                         configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewReplies").setValue(sone.getOptions().getBooleanOption("ShowNotification/NewReplies").getReal());
1643                         configuration.getBooleanValue(sonePrefix + "/Options/EnableSoneInsertNotifications").setValue(sone.getOptions().getBooleanOption("EnableSoneInsertNotifications").getReal());
1644                         configuration.getStringValue(sonePrefix + "/Options/ShowCustomAvatars").setValue(sone.getOptions().<ShowCustomAvatars>getEnumOption("ShowCustomAvatars").get().name());
1645
1646                         configuration.save();
1647
1648                         webOfTrustUpdater.setProperty((OwnIdentity) sone.getIdentity(), "Sone.LatestEdition", String.valueOf(sone.getLatestEdition()));
1649
1650                         logger.log(Level.INFO, String.format("Sone %s saved.", sone));
1651                 } catch (ConfigurationException ce1) {
1652                         logger.log(Level.WARNING, String.format("Could not save Sone: %s", sone), ce1);
1653                 }
1654         }
1655
1656         /** Saves the current options. */
1657         private void saveConfiguration() {
1658                 synchronized (configuration) {
1659                         if (storingConfiguration) {
1660                                 logger.log(Level.FINE, "Already storing configuration…");
1661                                 return;
1662                         }
1663                         storingConfiguration = true;
1664                 }
1665
1666                 /* store the options first. */
1667                 try {
1668                         configuration.getIntValue("Option/ConfigurationVersion").setValue(0);
1669                         configuration.getIntValue("Option/InsertionDelay").setValue(options.getIntegerOption("InsertionDelay").getReal());
1670                         configuration.getIntValue("Option/PostsPerPage").setValue(options.getIntegerOption("PostsPerPage").getReal());
1671                         configuration.getIntValue("Option/ImagesPerPage").setValue(options.getIntegerOption("ImagesPerPage").getReal());
1672                         configuration.getIntValue("Option/CharactersPerPost").setValue(options.getIntegerOption("CharactersPerPost").getReal());
1673                         configuration.getIntValue("Option/PostCutOffLength").setValue(options.getIntegerOption("PostCutOffLength").getReal());
1674                         configuration.getBooleanValue("Option/RequireFullAccess").setValue(options.getBooleanOption("RequireFullAccess").getReal());
1675                         configuration.getIntValue("Option/PositiveTrust").setValue(options.getIntegerOption("PositiveTrust").getReal());
1676                         configuration.getIntValue("Option/NegativeTrust").setValue(options.getIntegerOption("NegativeTrust").getReal());
1677                         configuration.getStringValue("Option/TrustComment").setValue(options.getStringOption("TrustComment").getReal());
1678                         configuration.getBooleanValue("Option/ActivateFcpInterface").setValue(options.getBooleanOption("ActivateFcpInterface").getReal());
1679                         configuration.getIntValue("Option/FcpFullAccessRequired").setValue(options.getIntegerOption("FcpFullAccessRequired").getReal());
1680
1681                         /* save known Sones. */
1682                         int soneCounter = 0;
1683                         synchronized (knownSones) {
1684                                 for (String knownSoneId : knownSones) {
1685                                         configuration.getStringValue("KnownSone/" + soneCounter++ + "/ID").setValue(knownSoneId);
1686                                 }
1687                                 configuration.getStringValue("KnownSone/" + soneCounter + "/ID").setValue(null);
1688                         }
1689
1690                         /* save Sone following times. */
1691                         soneCounter = 0;
1692                         synchronized (soneFollowingTimes) {
1693                                 for (Entry<String, Long> soneFollowingTime : soneFollowingTimes.entrySet()) {
1694                                         configuration.getStringValue("SoneFollowingTimes/" + soneCounter + "/Sone").setValue(soneFollowingTime.getKey());
1695                                         configuration.getLongValue("SoneFollowingTimes/" + soneCounter + "/Time").setValue(soneFollowingTime.getValue());
1696                                         ++soneCounter;
1697                                 }
1698                                 configuration.getStringValue("SoneFollowingTimes/" + soneCounter + "/Sone").setValue(null);
1699                         }
1700
1701                         /* save known posts. */
1702                         database.save();
1703
1704                         /* save bookmarked posts. */
1705                         int bookmarkedPostCounter = 0;
1706                         synchronized (bookmarkedPosts) {
1707                                 for (String bookmarkedPostId : bookmarkedPosts) {
1708                                         configuration.getStringValue("Bookmarks/Post/" + bookmarkedPostCounter++ + "/ID").setValue(bookmarkedPostId);
1709                                 }
1710                         }
1711                         configuration.getStringValue("Bookmarks/Post/" + bookmarkedPostCounter++ + "/ID").setValue(null);
1712
1713                         /* now save it. */
1714                         configuration.save();
1715
1716                 } catch (ConfigurationException ce1) {
1717                         logger.log(Level.SEVERE, "Could not store configuration!", ce1);
1718                 } catch (DatabaseException de1) {
1719                         logger.log(Level.SEVERE, "Could not save database!", de1);
1720                 } finally {
1721                         synchronized (configuration) {
1722                                 storingConfiguration = false;
1723                         }
1724                 }
1725         }
1726
1727         /** Loads the configuration. */
1728         private void loadConfiguration() {
1729                 /* create options. */
1730                 options.addIntegerOption("InsertionDelay", new DefaultOption<Integer>(60, new IntegerRangePredicate(0, Integer.MAX_VALUE), new OptionWatcher<Integer>() {
1731
1732                         @Override
1733                         public void optionChanged(Option<Integer> option, Integer oldValue, Integer newValue) {
1734                                 SoneInserter.setInsertionDelay(newValue);
1735                         }
1736
1737                 }));
1738                 options.addIntegerOption("PostsPerPage", new DefaultOption<Integer>(10, new IntegerRangePredicate(1, Integer.MAX_VALUE)));
1739                 options.addIntegerOption("ImagesPerPage", new DefaultOption<Integer>(9, new IntegerRangePredicate(1, Integer.MAX_VALUE)));
1740                 options.addIntegerOption("CharactersPerPost", new DefaultOption<Integer>(400, Predicates.<Integer>or(new IntegerRangePredicate(50, Integer.MAX_VALUE), Predicates.equalTo(-1))));
1741                 options.addIntegerOption("PostCutOffLength", new DefaultOption<Integer>(200, Predicates.<Integer>or(new IntegerRangePredicate(50, Integer.MAX_VALUE), Predicates.equalTo(-1))));
1742                 options.addBooleanOption("RequireFullAccess", new DefaultOption<Boolean>(false));
1743                 options.addIntegerOption("PositiveTrust", new DefaultOption<Integer>(75, new IntegerRangePredicate(0, 100)));
1744                 options.addIntegerOption("NegativeTrust", new DefaultOption<Integer>(-25, new IntegerRangePredicate(-100, 100)));
1745                 options.addStringOption("TrustComment", new DefaultOption<String>("Set from Sone Web Interface"));
1746                 options.addBooleanOption("ActivateFcpInterface", new DefaultOption<Boolean>(false, new OptionWatcher<Boolean>() {
1747
1748                         @Override
1749                         @SuppressWarnings("synthetic-access")
1750                         public void optionChanged(Option<Boolean> option, Boolean oldValue, Boolean newValue) {
1751                                 fcpInterface.setActive(newValue);
1752                         }
1753                 }));
1754                 options.addIntegerOption("FcpFullAccessRequired", new DefaultOption<Integer>(2, new OptionWatcher<Integer>() {
1755
1756                         @Override
1757                         @SuppressWarnings("synthetic-access")
1758                         public void optionChanged(Option<Integer> option, Integer oldValue, Integer newValue) {
1759                                 fcpInterface.setFullAccessRequired(FullAccessRequired.values()[newValue]);
1760                         }
1761
1762                 }));
1763
1764                 loadConfigurationValue("InsertionDelay");
1765                 loadConfigurationValue("PostsPerPage");
1766                 loadConfigurationValue("ImagesPerPage");
1767                 loadConfigurationValue("CharactersPerPost");
1768                 loadConfigurationValue("PostCutOffLength");
1769                 options.getBooleanOption("RequireFullAccess").set(configuration.getBooleanValue("Option/RequireFullAccess").getValue(null));
1770                 loadConfigurationValue("PositiveTrust");
1771                 loadConfigurationValue("NegativeTrust");
1772                 options.getStringOption("TrustComment").set(configuration.getStringValue("Option/TrustComment").getValue(null));
1773                 options.getBooleanOption("ActivateFcpInterface").set(configuration.getBooleanValue("Option/ActivateFcpInterface").getValue(null));
1774                 options.getIntegerOption("FcpFullAccessRequired").set(configuration.getIntValue("Option/FcpFullAccessRequired").getValue(null));
1775
1776                 /* load known Sones. */
1777                 int soneCounter = 0;
1778                 while (true) {
1779                         String knownSoneId = configuration.getStringValue("KnownSone/" + soneCounter++ + "/ID").getValue(null);
1780                         if (knownSoneId == null) {
1781                                 break;
1782                         }
1783                         synchronized (knownSones) {
1784                                 knownSones.add(knownSoneId);
1785                         }
1786                 }
1787
1788                 /* load Sone following times. */
1789                 soneCounter = 0;
1790                 while (true) {
1791                         String soneId = configuration.getStringValue("SoneFollowingTimes/" + soneCounter + "/Sone").getValue(null);
1792                         if (soneId == null) {
1793                                 break;
1794                         }
1795                         long time = configuration.getLongValue("SoneFollowingTimes/" + soneCounter + "/Time").getValue(Long.MAX_VALUE);
1796                         synchronized (soneFollowingTimes) {
1797                                 soneFollowingTimes.put(soneId, time);
1798                         }
1799                         ++soneCounter;
1800                 }
1801
1802                 /* load bookmarked posts. */
1803                 int bookmarkedPostCounter = 0;
1804                 while (true) {
1805                         String bookmarkedPostId = configuration.getStringValue("Bookmarks/Post/" + bookmarkedPostCounter++ + "/ID").getValue(null);
1806                         if (bookmarkedPostId == null) {
1807                                 break;
1808                         }
1809                         synchronized (bookmarkedPosts) {
1810                                 bookmarkedPosts.add(bookmarkedPostId);
1811                         }
1812                 }
1813
1814         }
1815
1816         /**
1817          * Loads an {@link Integer} configuration value for the option with the given
1818          * name, logging validation failures.
1819          *
1820          * @param optionName
1821          *              The name of the option to load
1822          */
1823         private void loadConfigurationValue(String optionName) {
1824                 try {
1825                         options.getIntegerOption(optionName).set(configuration.getIntValue("Option/" + optionName).getValue(null));
1826                 } catch (IllegalArgumentException iae1) {
1827                         logger.log(Level.WARNING, String.format("Invalid value for %s in configuration, using default.", optionName));
1828                 }
1829         }
1830
1831         /**
1832          * Notifies the core that a new {@link OwnIdentity} was added.
1833          *
1834          * @param ownIdentityAddedEvent
1835          *              The event
1836          */
1837         @Subscribe
1838         public void ownIdentityAdded(OwnIdentityAddedEvent ownIdentityAddedEvent) {
1839                 OwnIdentity ownIdentity = ownIdentityAddedEvent.ownIdentity();
1840                 logger.log(Level.FINEST, String.format("Adding OwnIdentity: %s", ownIdentity));
1841                 if (ownIdentity.hasContext("Sone")) {
1842                         addLocalSone(ownIdentity);
1843                 }
1844         }
1845
1846         /**
1847          * Notifies the core that an {@link OwnIdentity} was removed.
1848          *
1849          * @param ownIdentityRemovedEvent
1850          *              The event
1851          */
1852         @Subscribe
1853         public void ownIdentityRemoved(OwnIdentityRemovedEvent ownIdentityRemovedEvent) {
1854                 OwnIdentity ownIdentity = ownIdentityRemovedEvent.ownIdentity();
1855                 logger.log(Level.FINEST, String.format("Removing OwnIdentity: %s", ownIdentity));
1856                 trustedIdentities.removeAll(ownIdentity);
1857         }
1858
1859         /**
1860          * Notifies the core that a new {@link Identity} was added.
1861          *
1862          * @param identityAddedEvent
1863          *              The event
1864          */
1865         @Subscribe
1866         public void identityAdded(IdentityAddedEvent identityAddedEvent) {
1867                 Identity identity = identityAddedEvent.identity();
1868                 logger.log(Level.FINEST, String.format("Adding Identity: %s", identity));
1869                 trustedIdentities.put(identityAddedEvent.ownIdentity(), identity);
1870                 addRemoteSone(identity);
1871         }
1872
1873         /**
1874          * Notifies the core that an {@link Identity} was updated.
1875          *
1876          * @param identityUpdatedEvent
1877          *              The event
1878          */
1879         @Subscribe
1880         public void identityUpdated(IdentityUpdatedEvent identityUpdatedEvent) {
1881                 final Identity identity = identityUpdatedEvent.identity();
1882                 soneDownloaders.execute(new Runnable() {
1883
1884                         @Override
1885                         @SuppressWarnings("synthetic-access")
1886                         public void run() {
1887                                 Optional<Sone> sone = getRemoteSone(identity.getId());
1888                                 sone.get().setIdentity(identity);
1889                                 sone.get().setLatestEdition(Numbers.safeParseLong(identity.getProperty("Sone.LatestEdition"), sone.get().getLatestEdition()));
1890                                 soneDownloader.addSone(sone.get());
1891                                 soneDownloader.fetchSone(sone.get());
1892                         }
1893                 });
1894         }
1895
1896         /**
1897          * Notifies the core that an {@link Identity} was removed.
1898          *
1899          * @param identityRemovedEvent
1900          *              The event
1901          */
1902         @Subscribe
1903         public void identityRemoved(IdentityRemovedEvent identityRemovedEvent) {
1904                 OwnIdentity ownIdentity = identityRemovedEvent.ownIdentity();
1905                 Identity identity = identityRemovedEvent.identity();
1906                 trustedIdentities.remove(ownIdentity, identity);
1907                 boolean foundIdentity = false;
1908                 for (Entry<OwnIdentity, Collection<Identity>> trustedIdentity : trustedIdentities.asMap().entrySet()) {
1909                         if (trustedIdentity.getKey().equals(ownIdentity)) {
1910                                 continue;
1911                         }
1912                         if (trustedIdentity.getValue().contains(identity)) {
1913                                 foundIdentity = true;
1914                         }
1915                 }
1916                 if (foundIdentity) {
1917                         /* some local identity still trusts this identity, don’t remove. */
1918                         return;
1919                 }
1920                 Optional<Sone> sone = getSone(identity.getId());
1921                 if (!sone.isPresent()) {
1922                         /* TODO - we don’t have the Sone anymore. should this happen? */
1923                         return;
1924                 }
1925                 database.removePosts(sone.get());
1926                 for (Post post : sone.get().getPosts()) {
1927                         eventBus.post(new PostRemovedEvent(post));
1928                 }
1929                 database.removePostReplies(sone.get());
1930                 for (PostReply reply : sone.get().getReplies()) {
1931                         eventBus.post(new PostReplyRemovedEvent(reply));
1932                 }
1933                 synchronized (sones) {
1934                         sones.remove(identity.getId());
1935                 }
1936                 eventBus.post(new SoneRemovedEvent(sone.get()));
1937         }
1938
1939         /**
1940          * Deletes the temporary image.
1941          *
1942          * @param imageInsertFinishedEvent
1943          *              The event
1944          */
1945         @Subscribe
1946         public void imageInsertFinished(ImageInsertFinishedEvent imageInsertFinishedEvent) {
1947                 logger.log(Level.WARNING, String.format("Image insert finished for %s: %s", imageInsertFinishedEvent.image(), imageInsertFinishedEvent.resultingUri()));
1948                 imageInsertFinishedEvent.image().modify().setKey(imageInsertFinishedEvent.resultingUri().toString()).update();
1949                 deleteTemporaryImage(imageInsertFinishedEvent.image().getId());
1950                 touchConfiguration();
1951         }
1952
1953         public Optional<PostCreated> postCreated() {
1954                 return Optional.<PostCreated>of(new PostCreated() {
1955                         @Override
1956                         public void postCreated(final Post post) {
1957                                 if (post.isKnown()) {
1958                                         return;
1959                                 }
1960                                 eventBus.post(new NewPostFoundEvent(post));
1961                                 if (post.getSone().isLocal()) {
1962                                         localElementTicker.schedule(new Runnable() {
1963                                                 @Override
1964                                                 public void run() {
1965                                                         markPostKnown(post);
1966                                                 }
1967                                         }, 10, TimeUnit.SECONDS);
1968                                 }
1969                         }
1970                 });
1971         }
1972
1973 }