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.Preconditions.checkArgument;
  21 import static com.google.common.base.Preconditions.checkNotNull;
  22 import static net.pterodactylus.sone.data.Identified.GET_ID;
  23
  24 import java.net.MalformedURLException;
  25 import java.util.Collection;
  26 import java.util.HashMap;
  27 import java.util.HashSet;
  28 import java.util.List;
  29 import java.util.Map;
  30 import java.util.Map.Entry;
  31 import java.util.Set;
  32 import java.util.concurrent.ExecutorService;
  33 import java.util.concurrent.Executors;
  34 import java.util.concurrent.ScheduledExecutorService;
  35 import java.util.concurrent.TimeUnit;
  36 import java.util.logging.Level;
  37 import java.util.logging.Logger;
  38
  39 import net.pterodactylus.sone.core.Options.DefaultOption;
  40 import net.pterodactylus.sone.core.Options.Option;
  41 import net.pterodactylus.sone.core.Options.OptionWatcher;
  42 import net.pterodactylus.sone.core.event.ImageInsertFinishedEvent;
  43 import net.pterodactylus.sone.core.event.MarkPostKnownEvent;
  44 import net.pterodactylus.sone.core.event.MarkPostReplyKnownEvent;
  45 import net.pterodactylus.sone.core.event.MarkSoneKnownEvent;
  46 import net.pterodactylus.sone.core.event.NewPostFoundEvent;
  47 import net.pterodactylus.sone.core.event.NewPostReplyFoundEvent;
  48 import net.pterodactylus.sone.core.event.NewSoneFoundEvent;
  49 import net.pterodactylus.sone.core.event.PostRemovedEvent;
  50 import net.pterodactylus.sone.core.event.PostReplyRemovedEvent;
  51 import net.pterodactylus.sone.core.event.SoneLockedEvent;
  52 import net.pterodactylus.sone.core.event.SoneRemovedEvent;
  53 import net.pterodactylus.sone.core.event.SoneUnlockedEvent;
  54 import net.pterodactylus.sone.data.Album;
  55 import net.pterodactylus.sone.data.Client;
  56 import net.pterodactylus.sone.data.Image;
  57 import net.pterodactylus.sone.data.Post;
  58 import net.pterodactylus.sone.data.PostReply;
  59 import net.pterodactylus.sone.data.Profile;
  60 import net.pterodactylus.sone.data.Profile.Field;
  61 import net.pterodactylus.sone.data.Reply;
  62 import net.pterodactylus.sone.data.Sone;
  63 import net.pterodactylus.sone.data.Sone.ShowCustomAvatars;
  64 import net.pterodactylus.sone.data.Sone.SoneStatus;
  65 import net.pterodactylus.sone.data.SoneImpl;
  66 import net.pterodactylus.sone.data.TemporaryImage;
  67 import net.pterodactylus.sone.database.Database;
  68 import net.pterodactylus.sone.database.DatabaseException;
  69 import net.pterodactylus.sone.database.PostBuilder;
  70 import net.pterodactylus.sone.database.PostProvider;
  71 import net.pterodactylus.sone.database.PostReplyBuilder;
  72 import net.pterodactylus.sone.database.PostReplyProvider;
  73 import net.pterodactylus.sone.database.SoneProvider;
  74 import net.pterodactylus.sone.fcp.FcpInterface;
  75 import net.pterodactylus.sone.fcp.FcpInterface.FullAccessRequired;
  76 import net.pterodactylus.sone.freenet.wot.Identity;
  77 import net.pterodactylus.sone.freenet.wot.IdentityManager;
  78 import net.pterodactylus.sone.freenet.wot.OwnIdentity;
  79 import net.pterodactylus.sone.freenet.wot.event.IdentityAddedEvent;
  80 import net.pterodactylus.sone.freenet.wot.event.IdentityRemovedEvent;
  81 import net.pterodactylus.sone.freenet.wot.event.IdentityUpdatedEvent;
  82 import net.pterodactylus.sone.freenet.wot.event.OwnIdentityAddedEvent;
  83 import net.pterodactylus.sone.freenet.wot.event.OwnIdentityRemovedEvent;
  84 import net.pterodactylus.sone.main.SonePlugin;
  85 import net.pterodactylus.sone.utils.IntegerRangePredicate;
  86 import net.pterodactylus.util.config.Configuration;
  87 import net.pterodactylus.util.config.ConfigurationException;
  88 import net.pterodactylus.util.logging.Logging;
  89 import net.pterodactylus.util.number.Numbers;
  90 import net.pterodactylus.util.service.AbstractService;
  91 import net.pterodactylus.util.thread.NamedThreadFactory;
  92
  93 import freenet.keys.FreenetURI;
  94
  95 import com.google.common.base.Optional;
  96 import com.google.common.base.Predicate;
  97 import com.google.common.base.Predicates;
  98 import com.google.common.collect.FluentIterable;
  99 import com.google.common.collect.HashMultimap;
 100 import com.google.common.collect.ImmutableSet;
 101 import com.google.common.collect.Maps;
 102 import com.google.common.collect.Multimap;
 103 import com.google.common.collect.Multimaps;
 104 import com.google.common.eventbus.EventBus;
 105 import com.google.common.eventbus.Subscribe;
 106 import com.google.inject.Inject;
 107
 108 /**
 109  * The Sone core.
 110  *
 111  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
 112  */
 113 public class Core extends AbstractService implements SoneProvider, PostProvider, PostReplyProvider {
 114
 115         /** The logger. */
 116         private static final Logger logger = Logging.getLogger(Core.class);
 117
 118         /** The start time. */
 119         private final long startupTime = System.currentTimeMillis();
 120
 121         /** The options. */
 122         private final Options options = new Options();
 123
 124         /** The preferences. */
 125         private final Preferences preferences = new Preferences(options);
 126
 127         /** The event bus. */
 128         private final EventBus eventBus;
 129
 130         /** The configuration. */
 131         private Configuration configuration;
 132
 133         /** Whether we’re currently saving the configuration. */
 134         private boolean storingConfiguration = false;
 135
 136         /** The identity manager. */
 137         private final IdentityManager identityManager;
 138
 139         /** Interface to freenet. */
 140         private final FreenetInterface freenetInterface;
 141
 142         /** The Sone downloader. */
 143         private final SoneDownloader soneDownloader;
 144
 145         /** The image inserter. */
 146         private final ImageInserter imageInserter;
 147
 148         /** Sone downloader thread-pool. */
 149         private final ExecutorService soneDownloaders = Executors.newFixedThreadPool(10, new NamedThreadFactory("Sone Downloader %2$d"));
 150
 151         /** The update checker. */
 152         private final UpdateChecker updateChecker;
 153
 154         /** The trust updater. */
 155         private final WebOfTrustUpdater webOfTrustUpdater;
 156
 157         /** The FCP interface. */
 158         private volatile FcpInterface fcpInterface;
 159
 160         /** The times Sones were followed. */
 161         private final Map<String, Long> soneFollowingTimes = new HashMap<String, Long>();
 162
 163         /** Locked local Sones. */
 164         /* synchronize on itself. */
 165         private final Set<Sone> lockedSones = new HashSet<Sone>();
 166
 167         /** Sone inserters. */
 168         /* synchronize access on this on sones. */
 169         private final Map<Sone, SoneInserter> soneInserters = new HashMap<Sone, SoneInserter>();
 170
 171         /** Sone rescuers. */
 172         /* synchronize access on this on sones. */
 173         private final Map<Sone, SoneRescuer> soneRescuers = new HashMap<Sone, SoneRescuer>();
 174
 175         /** All Sones. */
 176         /* synchronize access on this on itself. */
 177         private final Map<String, Sone> sones = new HashMap<String, Sone>();
 178
 179         /** All known Sones. */
 180         private final Set<String> knownSones = new HashSet<String>();
 181
 182         /** The post database. */
 183         private final Database database;
 184
 185         /** All bookmarked posts. */
 186         /* synchronize access on itself. */
 187         private final Set<String> bookmarkedPosts = new HashSet<String>();
 188
 189         /** Trusted identities, sorted by own identities. */
 190         private final Multimap<OwnIdentity, Identity> trustedIdentities = Multimaps.synchronizedSetMultimap(HashMultimap.<OwnIdentity, Identity>create());
 191
 192         /** All temporary images. */
 193         private final Map<String, TemporaryImage> temporaryImages = new HashMap<String, TemporaryImage>();
 194
 195         /** Ticker for threads that mark own elements as known. */
 196         private final ScheduledExecutorService localElementTicker = Executors.newScheduledThreadPool(1);
 197
 198         /** The time the configuration was last touched. */
 199         private volatile long lastConfigurationUpdate;
 200
 201         /**
 202          * Creates a new core.
 203          *
 204          * @param configuration
 205          *              The configuration of the core
 206          * @param freenetInterface
 207          *              The freenet interface
 208          * @param identityManager
 209          *              The identity manager
 210          * @param webOfTrustUpdater
 211          *              The WebOfTrust updater
 212          * @param eventBus
 213          *              The event bus
 214          * @param database
 215          *              The database
 216          */
 217         @Inject
 218         public Core(Configuration configuration, FreenetInterface freenetInterface, IdentityManager identityManager, WebOfTrustUpdater webOfTrustUpdater, EventBus eventBus, Database database) {
 219                 super("Sone Core");
 220                 this.configuration = configuration;
 221                 this.freenetInterface = freenetInterface;
 222                 this.identityManager = identityManager;
 223                 this.soneDownloader = new SoneDownloader(this, freenetInterface);
 224                 this.imageInserter = new ImageInserter(freenetInterface);
 225                 this.updateChecker = new UpdateChecker(eventBus, freenetInterface);
 226                 this.webOfTrustUpdater = webOfTrustUpdater;
 227                 this.eventBus = eventBus;
 228                 this.database = database;
 229         }
 230
 231         //
 232         // ACCESSORS
 233         //
 234
 235         /**
 236          * Returns the time Sone was started.
 237          *
 238          * @return The startup time (in milliseconds since Jan 1, 1970 UTC)
 239          */
 240         public long getStartupTime() {
 241                 return startupTime;
 242         }
 243
 244         /**
 245          * Sets the configuration to use. This will automatically save the current
 246          * configuration to the given configuration.
 247          *
 248          * @param configuration
 249          *              The new configuration to use
 250          */
 251         public void setConfiguration(Configuration configuration) {
 252                 this.configuration = configuration;
 253                 touchConfiguration();
 254         }
 255
 256         /**
 257          * Returns the options used by the core.
 258          *
 259          * @return The options of the core
 260          */
 261         public Preferences getPreferences() {
 262                 return preferences;
 263         }
 264
 265         /**
 266          * Returns the identity manager used by the core.
 267          *
 268          * @return The identity manager
 269          */
 270         public IdentityManager getIdentityManager() {
 271                 return identityManager;
 272         }
 273
 274         /**
 275          * Returns the update checker.
 276          *
 277          * @return The update checker
 278          */
 279         public UpdateChecker getUpdateChecker() {
 280                 return updateChecker;
 281         }
 282
 283         /**
 284          * Sets the FCP interface to use.
 285          *
 286          * @param fcpInterface
 287          *              The FCP interface to use
 288          */
 289         public void setFcpInterface(FcpInterface fcpInterface) {
 290                 this.fcpInterface = fcpInterface;
 291         }
 292
 293         /**
 294          * Returns the Sone rescuer for the given local Sone.
 295          *
 296          * @param sone
 297          *              The local Sone to get the rescuer for
 298          * @return The Sone rescuer for the given Sone
 299          */
 300         public SoneRescuer getSoneRescuer(Sone sone) {
 301                 checkNotNull(sone, "sone must not be null");
 302                 checkArgument(sone.isLocal(), "sone must be local");
 303                 synchronized (sones) {
 304                         SoneRescuer soneRescuer = soneRescuers.get(sone);
 305                         if (soneRescuer == null) {
 306                                 soneRescuer = new SoneRescuer(this, soneDownloader, sone);
 307                                 soneRescuers.put(sone, soneRescuer);
 308                                 soneRescuer.start();
 309                         }
 310                         return soneRescuer;
 311                 }
 312         }
 313
 314         /**
 315          * Returns whether the given Sone is currently locked.
 316          *
 317          * @param sone
 318          *              The sone to check
 319          * @return {@code true} if the Sone is locked, {@code false} if it is not
 320          */
 321         public boolean isLocked(Sone sone) {
 322                 synchronized (lockedSones) {
 323                         return lockedSones.contains(sone);
 324                 }
 325         }
 326
 327         /** {@inheritDocs} */
 328         @Override
 329         public Collection<Sone> getSones() {
 330                 synchronized (sones) {
 331                         return ImmutableSet.copyOf(sones.values());
 332                 }
 333         }
 334
 335         /**
 336          * Returns the Sone with the given ID, regardless whether it’s local or
 337          * remote.
 338          *
 339          * @param id
 340          *              The ID of the Sone to get
 341          * @return The Sone with the given ID, or {@code null} if there is no such
 342          *         Sone
 343          */
 344         @Override
 345         public Optional<Sone> getSone(String id) {
 346                 synchronized (sones) {
 347                         return Optional.fromNullable(sones.get(id));
 348                 }
 349         }
 350
 351         /** {@inheritDocs} */
 352         @Override
 353         public Collection<Sone> getLocalSones() {
 354                 synchronized (sones) {
 355                         return FluentIterable.from(sones.values()).filter(new Predicate<Sone>() {
 356
 357                                 @Override
 358                                 public boolean apply(Sone sone) {
 359                                         return sone.isLocal();
 360                                 }
 361                         }).toSet();
 362                 }
 363         }
 364
 365         /**
 366          * Returns the local Sone with the given ID, optionally creating a new Sone.
 367          *
 368          * @param id
 369          *              The ID of the Sone
 370          * @param create
 371          *              {@code true} to create a new Sone if none exists, {@code false} to return
 372          *              null if none exists
 373          * @return The Sone with the given ID, or {@code null}
 374          */
 375         public Sone getLocalSone(String id, boolean create) {
 376                 synchronized (sones) {
 377                         Sone sone = sones.get(id);
 378                         if ((sone == null) && create) {
 379                                 sone = new SoneImpl(id, true);
 380                                 sones.put(id, sone);
 381                         }
 382                         if ((sone != null) && !sone.isLocal()) {
 383                                 sone = new SoneImpl(id, true);
 384                                 sones.put(id, sone);
 385                         }
 386                         return sone;
 387                 }
 388         }
 389
 390         /** {@inheritDocs} */
 391         @Override
 392         public Collection<Sone> getRemoteSones() {
 393                 synchronized (sones) {
 394                         return FluentIterable.from(sones.values()).filter(new Predicate<Sone>() {
 395
 396                                 @Override
 397                                 public boolean apply(Sone sone) {
 398                                         return !sone.isLocal();
 399                                 }
 400                         }).toSet();
 401                 }
 402         }
 403
 404         /**
 405          * Returns the remote Sone with the given ID.
 406          *
 407          * @param id
 408          *              The ID of the remote Sone to get
 409          * @param create
 410          *              {@code true} to always create a Sone, {@code false} to return {@code null}
 411          *              if no Sone with the given ID exists
 412          * @return The Sone with the given ID
 413          */
 414         public Sone getRemoteSone(String id, boolean create) {
 415                 synchronized (sones) {
 416                         Sone sone = sones.get(id);
 417                         if ((sone == null) && create && (id != null) && (id.length() == 43)) {
 418                                 sone = new SoneImpl(id, false);
 419                                 sones.put(id, sone);
 420                         }
 421                         return sone;
 422                 }
 423         }
 424
 425         /**
 426          * Returns whether the given Sone has been modified.
 427          *
 428          * @param sone
 429          *              The Sone to check for modifications
 430          * @return {@code true} if a modification has been detected in the Sone, {@code
 431          *         false} otherwise
 432          */
 433         public boolean isModifiedSone(Sone sone) {
 434                 return (soneInserters.containsKey(sone)) ? soneInserters.get(sone).isModified() : false;
 435         }
 436
 437         /**
 438          * Returns the time when the given was first followed by any local Sone.
 439          *
 440          * @param sone
 441          *              The Sone to get the time for
 442          * @return The time (in milliseconds since Jan 1, 1970) the Sone has first been
 443          *         followed, or {@link Long#MAX_VALUE}
 444          */
 445         public long getSoneFollowingTime(Sone sone) {
 446                 synchronized (soneFollowingTimes) {
 447                         return Optional.fromNullable(soneFollowingTimes.get(sone.getId())).or(Long.MAX_VALUE);
 448                 }
 449         }
 450
 451         /**
 452          * Returns whether the target Sone is trusted by the origin Sone.
 453          *
 454          * @param origin
 455          *              The origin Sone
 456          * @param target
 457          *              The target Sone
 458          * @return {@code true} if the target Sone is trusted by the origin Sone
 459          */
 460         public boolean isSoneTrusted(Sone origin, Sone target) {
 461                 checkNotNull(origin, "origin must not be null");
 462                 checkNotNull(target, "target must not be null");
 463                 checkArgument(origin.getIdentity() instanceof OwnIdentity, "origin’s identity must be an OwnIdentity");
 464                 return trustedIdentities.containsEntry(origin.getIdentity(), target.getIdentity());
 465         }
 466
 467         /**
 468          * Returns a post builder.
 469          *
 470          * @return A new post builder
 471          */
 472         public PostBuilder postBuilder() {
 473                 return database.newPostBuilder();
 474         }
 475
 476         /** {@inheritDoc} */
 477         @Override
 478         public Optional<Post> getPost(String postId) {
 479                 return database.getPost(postId);
 480         }
 481
 482         /** {@inheritDocs} */
 483         @Override
 484         public Collection<Post> getPosts(String soneId) {
 485                 return database.getPosts(soneId);
 486         }
 487
 488         /** {@inheritDoc} */
 489         @Override
 490         public Collection<Post> getDirectedPosts(final String recipientId) {
 491                 checkNotNull(recipientId, "recipient must not be null");
 492                 return database.getDirectedPosts(recipientId);
 493         }
 494
 495         /**
 496          * Returns a post reply builder.
 497          *
 498          * @return A new post reply builder
 499          */
 500         public PostReplyBuilder postReplyBuilder() {
 501                 return database.newPostReplyBuilder();
 502         }
 503
 504         /** {@inheritDoc} */
 505         @Override
 506         public Optional<PostReply> getPostReply(String replyId) {
 507                 return database.getPostReply(replyId);
 508         }
 509
 510         /** {@inheritDoc} */
 511         @Override
 512         public List<PostReply> getReplies(final String postId) {
 513                 return database.getReplies(postId);
 514         }
 515
 516         /**
 517          * Returns all Sones that have liked the given post.
 518          *
 519          * @param post
 520          *              The post to get the liking Sones for
 521          * @return The Sones that like the given post
 522          */
 523         public Set<Sone> getLikes(Post post) {
 524                 Set<Sone> sones = new HashSet<Sone>();
 525                 for (Sone sone : getSones()) {
 526                         if (sone.getLikedPostIds().contains(post.getId())) {
 527                                 sones.add(sone);
 528                         }
 529                 }
 530                 return sones;
 531         }
 532
 533         /**
 534          * Returns all Sones that have liked the given reply.
 535          *
 536          * @param reply
 537          *              The reply to get the liking Sones for
 538          * @return The Sones that like the given reply
 539          */
 540         public Set<Sone> getLikes(PostReply reply) {
 541                 Set<Sone> sones = new HashSet<Sone>();
 542                 for (Sone sone : getSones()) {
 543                         if (sone.getLikedReplyIds().contains(reply.getId())) {
 544                                 sones.add(sone);
 545                         }
 546                 }
 547                 return sones;
 548         }
 549
 550         /**
 551          * Returns whether the given post is bookmarked.
 552          *
 553          * @param post
 554          *              The post to check
 555          * @return {@code true} if the given post is bookmarked, {@code false}
 556          *         otherwise
 557          */
 558         public boolean isBookmarked(Post post) {
 559                 return isPostBookmarked(post.getId());
 560         }
 561
 562         /**
 563          * Returns whether the post with the given ID is bookmarked.
 564          *
 565          * @param id
 566          *              The ID of the post to check
 567          * @return {@code true} if the post with the given ID is bookmarked, {@code
 568          *         false} otherwise
 569          */
 570         public boolean isPostBookmarked(String id) {
 571                 synchronized (bookmarkedPosts) {
 572                         return bookmarkedPosts.contains(id);
 573                 }
 574         }
 575
 576         /**
 577          * Returns all currently known bookmarked posts.
 578          *
 579          * @return All bookmarked posts
 580          */
 581         public Set<Post> getBookmarkedPosts() {
 582                 Set<Post> posts = new HashSet<Post>();
 583                 synchronized (bookmarkedPosts) {
 584                         for (String bookmarkedPostId : bookmarkedPosts) {
 585                                 Optional<Post> post = getPost(bookmarkedPostId);
 586                                 if (post.isPresent()) {
 587                                         posts.add(post.get());
 588                                 }
 589                         }
 590                 }
 591                 return posts;
 592         }
 593
 594         public Optional<Album> getAlbum(String albumId) {
 595                 return database.getAlbum(albumId);
 596         }
 597
 598         public Optional<Image> getImage(String imageId) {
 599                 return database.getImage(imageId);
 600         }
 601
 602         /**
 603          * Returns the temporary image with the given ID.
 604          *
 605          * @param imageId
 606          *              The ID of the temporary image
 607          * @return The temporary image, or {@code null} if there is no temporary image
 608          *         with the given ID
 609          */
 610         public TemporaryImage getTemporaryImage(String imageId) {
 611                 synchronized (temporaryImages) {
 612                         return temporaryImages.get(imageId);
 613                 }
 614         }
 615
 616         //
 617         // ACTIONS
 618         //
 619
 620         /**
 621          * Locks the given Sone. A locked Sone will not be inserted by {@link
 622          * SoneInserter} until it is {@link #unlockSone(Sone) unlocked} again.
 623          *
 624          * @param sone
 625          *              The sone to lock
 626          */
 627         public void lockSone(Sone sone) {
 628                 synchronized (lockedSones) {
 629                         if (lockedSones.add(sone)) {
 630                                 eventBus.post(new SoneLockedEvent(sone));
 631                         }
 632                 }
 633         }
 634
 635         /**
 636          * Unlocks the given Sone.
 637          *
 638          * @param sone
 639          *              The sone to unlock
 640          * @see #lockSone(Sone)
 641          */
 642         public void unlockSone(Sone sone) {
 643                 synchronized (lockedSones) {
 644                         if (lockedSones.remove(sone)) {
 645                                 eventBus.post(new SoneUnlockedEvent(sone));
 646                         }
 647                 }
 648         }
 649
 650         /**
 651          * Adds a local Sone from the given own identity.
 652          *
 653          * @param ownIdentity
 654          *              The own identity to create a Sone from
 655          * @return The added (or already existing) Sone
 656          */
 657         public Sone addLocalSone(OwnIdentity ownIdentity) {
 658                 if (ownIdentity == null) {
 659                         logger.log(Level.WARNING, "Given OwnIdentity is null!");
 660                         return null;
 661                 }
 662                 logger.info(String.format("Adding Sone from OwnIdentity: %s", ownIdentity));
 663                 synchronized (sones) {
 664                         final Sone sone;
 665                         try {
 666                                 sone = getLocalSone(ownIdentity.getId(), true).setIdentity(ownIdentity).setInsertUri(new FreenetURI(ownIdentity.getInsertUri())).setRequestUri(new FreenetURI(ownIdentity.getRequestUri()));
 667                         } catch (MalformedURLException mue1) {
 668                                 logger.log(Level.SEVERE, String.format("Could not convert the Identity’s URIs to Freenet URIs: %s, %s", ownIdentity.getInsertUri(), ownIdentity.getRequestUri()), mue1);
 669                                 return null;
 670                         }
 671                         sone.setLatestEdition(Numbers.safeParseLong(ownIdentity.getProperty("Sone.LatestEdition"), (long) 0));
 672                         sone.setClient(new Client("Sone", SonePlugin.VERSION.toString()));
 673                         sone.setKnown(true);
 674                         /* TODO - load posts ’n stuff */
 675                         sones.put(ownIdentity.getId(), sone);
 676                         final SoneInserter soneInserter = new SoneInserter(this, eventBus, freenetInterface, sone);
 677                         soneInserters.put(sone, soneInserter);
 678                         sone.setStatus(SoneStatus.idle);
 679                         loadSone(sone);
 680                         soneInserter.start();
 681                         return sone;
 682                 }
 683         }
 684
 685         /**
 686          * Creates a new Sone for the given own identity.
 687          *
 688          * @param ownIdentity
 689          *              The own identity to create a Sone for
 690          * @return The created Sone
 691          */
 692         public Sone createSone(OwnIdentity ownIdentity) {
 693                 if (!webOfTrustUpdater.addContextWait(ownIdentity, "Sone")) {
 694                         logger.log(Level.SEVERE, String.format("Could not add “Sone” context to own identity: %s", ownIdentity));
 695                         return null;
 696                 }
 697                 Sone sone = addLocalSone(ownIdentity);
 698                 sone.getOptions().addBooleanOption("AutoFollow", new DefaultOption<Boolean>(false));
 699                 sone.getOptions().addBooleanOption("EnableSoneInsertNotifications", new DefaultOption<Boolean>(false));
 700                 sone.getOptions().addBooleanOption("ShowNotification/NewSones", new DefaultOption<Boolean>(true));
 701                 sone.getOptions().addBooleanOption("ShowNotification/NewPosts", new DefaultOption<Boolean>(true));
 702                 sone.getOptions().addBooleanOption("ShowNotification/NewReplies", new DefaultOption<Boolean>(true));
 703                 sone.getOptions().addEnumOption("ShowCustomAvatars", new DefaultOption<ShowCustomAvatars>(ShowCustomAvatars.NEVER));
 704
 705                 followSone(sone, "nwa8lHa271k2QvJ8aa0Ov7IHAV-DFOCFgmDt3X6BpCI");
 706                 touchConfiguration();
 707                 return sone;
 708         }
 709
 710         /**
 711          * Adds the Sone of the given identity.
 712          *
 713          * @param identity
 714          *              The identity whose Sone to add
 715          * @return The added or already existing Sone
 716          */
 717         public Sone addRemoteSone(Identity identity) {
 718                 if (identity == null) {
 719                         logger.log(Level.WARNING, "Given Identity is null!");
 720                         return null;
 721                 }
 722                 synchronized (sones) {
 723                         final Sone sone = getRemoteSone(identity.getId(), true);
 724                         if (sone.isLocal()) {
 725                                 return sone;
 726                         }
 727                         sone.setIdentity(identity);
 728                         boolean newSone = sone.getRequestUri() == null;
 729                         sone.setRequestUri(SoneUri.create(identity.getRequestUri()));
 730                         sone.setLatestEdition(Numbers.safeParseLong(identity.getProperty("Sone.LatestEdition"), (long) 0));
 731                         if (newSone) {
 732                                 synchronized (knownSones) {
 733                                         newSone = !knownSones.contains(sone.getId());
 734                                 }
 735                                 sone.setKnown(!newSone);
 736                                 if (newSone) {
 737                                         eventBus.post(new NewSoneFoundEvent(sone));
 738                                         for (Sone localSone : getLocalSones()) {
 739                                                 if (localSone.getOptions().getBooleanOption("AutoFollow").get()) {
 740                                                         followSone(localSone, sone.getId());
 741                                                 }
 742                                         }
 743                                 }
 744                         }
 745                         soneDownloader.addSone(sone);
 746                         soneDownloaders.execute(new Runnable() {
 747
 748                                 @Override
 749                                 @SuppressWarnings("synthetic-access")
 750                                 public void run() {
 751                                         soneDownloader.fetchSone(sone, sone.getRequestUri());
 752                                 }
 753
 754                         });
 755                         return sone;
 756                 }
 757         }
 758
 759         /**
 760          * Lets the given local Sone follow the Sone with the given ID.
 761          *
 762          * @param sone
 763          *              The local Sone that should follow another Sone
 764          * @param soneId
 765          *              The ID of the Sone to follow
 766          */
 767         public void followSone(Sone sone, String soneId) {
 768                 checkNotNull(sone, "sone must not be null");
 769                 checkNotNull(soneId, "soneId must not be null");
 770                 sone.addFriend(soneId);
 771                 synchronized (soneFollowingTimes) {
 772                         if (!soneFollowingTimes.containsKey(soneId)) {
 773                                 long now = System.currentTimeMillis();
 774                                 soneFollowingTimes.put(soneId, now);
 775                                 Optional<Sone> followedSone = getSone(soneId);
 776                                 if (!followedSone.isPresent()) {
 777                                         return;
 778                                 }
 779                                 for (Post post : followedSone.get().getPosts()) {
 780                                         if (post.getTime() < now) {
 781                                                 markPostKnown(post);
 782                                         }
 783                                 }
 784                                 for (PostReply reply : followedSone.get().getReplies()) {
 785                                         if (reply.getTime() < now) {
 786                                                 markReplyKnown(reply);
 787                                         }
 788                                 }
 789                         }
 790                 }
 791                 touchConfiguration();
 792         }
 793
 794         /**
 795          * Lets the given local Sone unfollow the Sone with the given ID.
 796          *
 797          * @param sone
 798          *              The local Sone that should unfollow another Sone
 799          * @param soneId
 800          *              The ID of the Sone being unfollowed
 801          */
 802         public void unfollowSone(Sone sone, String soneId) {
 803                 checkNotNull(sone, "sone must not be null");
 804                 checkNotNull(soneId, "soneId must not be null");
 805                 sone.removeFriend(soneId);
 806                 boolean unfollowedSoneStillFollowed = false;
 807                 for (Sone localSone : getLocalSones()) {
 808                         unfollowedSoneStillFollowed |= localSone.hasFriend(soneId);
 809                 }
 810                 if (!unfollowedSoneStillFollowed) {
 811                         synchronized (soneFollowingTimes) {
 812                                 soneFollowingTimes.remove(soneId);
 813                         }
 814                 }
 815                 touchConfiguration();
 816         }
 817
 818         /**
 819          * Sets the trust value of the given origin Sone for the target Sone.
 820          *
 821          * @param origin
 822          *              The origin Sone
 823          * @param target
 824          *              The target Sone
 825          * @param trustValue
 826          *              The trust value (from {@code -100} to {@code 100})
 827          */
 828         public void setTrust(Sone origin, Sone target, int trustValue) {
 829                 checkNotNull(origin, "origin must not be null");
 830                 checkArgument(origin.getIdentity() instanceof OwnIdentity, "origin must be a local Sone");
 831                 checkNotNull(target, "target must not be null");
 832                 checkArgument((trustValue >= -100) && (trustValue <= 100), "trustValue must be within [-100, 100]");
 833                 webOfTrustUpdater.setTrust((OwnIdentity) origin.getIdentity(), target.getIdentity(), trustValue, preferences.getTrustComment());
 834         }
 835
 836         /**
 837          * Removes any trust assignment for the given target Sone.
 838          *
 839          * @param origin
 840          *              The trust origin
 841          * @param target
 842          *              The trust target
 843          */
 844         public void removeTrust(Sone origin, Sone target) {
 845                 checkNotNull(origin, "origin must not be null");
 846                 checkNotNull(target, "target must not be null");
 847                 checkArgument(origin.getIdentity() instanceof OwnIdentity, "origin must be a local Sone");
 848                 webOfTrustUpdater.setTrust((OwnIdentity) origin.getIdentity(), target.getIdentity(), null, null);
 849         }
 850
 851         /**
 852          * Assigns the configured positive trust value for the given target.
 853          *
 854          * @param origin
 855          *              The trust origin
 856          * @param target
 857          *              The trust target
 858          */
 859         public void trustSone(Sone origin, Sone target) {
 860                 setTrust(origin, target, preferences.getPositiveTrust());
 861         }
 862
 863         /**
 864          * Assigns the configured negative trust value for the given target.
 865          *
 866          * @param origin
 867          *              The trust origin
 868          * @param target
 869          *              The trust target
 870          */
 871         public void distrustSone(Sone origin, Sone target) {
 872                 setTrust(origin, target, preferences.getNegativeTrust());
 873         }
 874
 875         /**
 876          * Removes the trust assignment for the given target.
 877          *
 878          * @param origin
 879          *              The trust origin
 880          * @param target
 881          *              The trust target
 882          */
 883         public void untrustSone(Sone origin, Sone target) {
 884                 removeTrust(origin, target);
 885         }
 886
 887         /**
 888          * Updates the stored Sone with the given Sone.
 889          *
 890          * @param sone
 891          *              The updated Sone
 892          */
 893         public void updateSone(Sone sone) {
 894                 updateSone(sone, false);
 895         }
 896
 897         /**
 898          * Updates the stored Sone with the given Sone. If {@code soneRescueMode} is
 899          * {@code true}, an older Sone than the current Sone can be given to restore an
 900          * old state.
 901          *
 902          * @param sone
 903          *              The Sone to update
 904          * @param soneRescueMode
 905          *              {@code true} if the stored Sone should be updated regardless of the age of
 906          *              the given Sone
 907          */
 908         public void updateSone(Sone sone, boolean soneRescueMode) {
 909                 Optional<Sone> storedSone = getSone(sone.getId());
 910                 if (storedSone.isPresent()) {
 911                         if (!soneRescueMode && !(sone.getTime() > storedSone.get().getTime())) {
 912                                 logger.log(Level.FINE, String.format("Downloaded Sone %s is not newer than stored Sone %s.", sone, storedSone));
 913                                 return;
 914                         }
 915                         /* find removed posts. */
 916                         Collection<Post> existingPosts = database.getPosts(sone.getId());
 917                         for (Post oldPost : existingPosts) {
 918                                 if (!sone.getPosts().contains(oldPost)) {
 919                                         eventBus.post(new PostRemovedEvent(oldPost));
 920                                 }
 921                         }
 922                         /* find new posts. */
 923                         for (Post newPost : sone.getPosts()) {
 924                                 if (existingPosts.contains(newPost)) {
 925                                         continue;
 926                                 }
 927                                 if (newPost.getTime() < getSoneFollowingTime(sone)) {
 928                                         newPost.setKnown(true);
 929                                 } else if (!newPost.isKnown()) {
 930                                         eventBus.post(new NewPostFoundEvent(newPost));
 931                                 }
 932                         }
 933                         /* store posts. */
 934                         database.storePosts(sone, sone.getPosts());
 935                         if (!soneRescueMode) {
 936                                 for (PostReply reply : storedSone.get().getReplies()) {
 937                                         if (!sone.getReplies().contains(reply)) {
 938                                                 eventBus.post(new PostReplyRemovedEvent(reply));
 939                                         }
 940                                 }
 941                         }
 942                         Set<PostReply> storedReplies = storedSone.get().getReplies();
 943                         for (PostReply reply : sone.getReplies()) {
 944                                 if (storedReplies.contains(reply)) {
 945                                         continue;
 946                                 }
 947                                 if (reply.getTime() < getSoneFollowingTime(sone)) {
 948                                         reply.setKnown(true);
 949                                 } else if (!reply.isKnown()) {
 950                                         eventBus.post(new NewPostReplyFoundEvent(reply));
 951                                 }
 952                         }
 953                         database.storePostReplies(sone, sone.getReplies());
 954                         for (Album album : storedSone.get().getRootAlbum().getAlbums()) {
 955                                 database.removeAlbum(album);
 956                                 for (Image image : album.getImages()) {
 957                                         database.removeImage(image);
 958                                 }
 959                         }
 960                         for (Album album : sone.getRootAlbum().getAlbums()) {
 961                                 database.storeAlbum(album);
 962                                 for (Image image : album.getImages()) {
 963                                         database.storeImage(image);
 964                                 }
 965                         }
 966                         synchronized (sones) {
 967                                 sone.setOptions(storedSone.get().getOptions());
 968                                 sone.setKnown(storedSone.get().isKnown());
 969                                 sone.setStatus((sone.getTime() == 0) ? SoneStatus.unknown : SoneStatus.idle);
 970                                 if (sone.isLocal()) {
 971                                         soneInserters.get(storedSone.get()).setSone(sone);
 972                                         touchConfiguration();
 973                                 }
 974                                 sones.put(sone.getId(), sone);
 975                         }
 976                 }
 977         }
 978
 979         /**
 980          * Deletes the given Sone. This will remove the Sone from the {@link
 981          * #getLocalSones() local Sones}, stop its {@link SoneInserter} and remove the
 982          * context from its identity.
 983          *
 984          * @param sone
 985          *              The Sone to delete
 986          */
 987         public void deleteSone(Sone sone) {
 988                 if (!(sone.getIdentity() instanceof OwnIdentity)) {
 989                         logger.log(Level.WARNING, String.format("Tried to delete Sone of non-own identity: %s", sone));
 990                         return;
 991                 }
 992                 synchronized (sones) {
 993                         if (!getLocalSones().contains(sone)) {
 994                                 logger.log(Level.WARNING, String.format("Tried to delete non-local Sone: %s", sone));
 995                                 return;
 996                         }
 997                         sones.remove(sone.getId());
 998                         SoneInserter soneInserter = soneInserters.remove(sone);
 999                         soneInserter.stop();
1000                 }
1001                 webOfTrustUpdater.removeContext((OwnIdentity) sone.getIdentity(), "Sone");
1002                 webOfTrustUpdater.removeProperty((OwnIdentity) sone.getIdentity(), "Sone.LatestEdition");
1003                 try {
1004                         configuration.getLongValue("Sone/" + sone.getId() + "/Time").setValue(null);
1005                 } catch (ConfigurationException ce1) {
1006                         logger.log(Level.WARNING, "Could not remove Sone from configuration!", ce1);
1007                 }
1008         }
1009
1010         /**
1011          * Marks the given Sone as known. If the Sone was not {@link Post#isKnown()
1012          * known} before, a {@link MarkSoneKnownEvent} is fired.
1013          *
1014          * @param sone
1015          *              The Sone to mark as known
1016          */
1017         public void markSoneKnown(Sone sone) {
1018                 if (!sone.isKnown()) {
1019                         sone.setKnown(true);
1020                         synchronized (knownSones) {
1021                                 knownSones.add(sone.getId());
1022                         }
1023                         eventBus.post(new MarkSoneKnownEvent(sone));
1024                         touchConfiguration();
1025                 }
1026         }
1027
1028         /**
1029          * Loads and updates the given Sone from the configuration. If any error is
1030          * encountered, loading is aborted and the given Sone is not changed.
1031          *
1032          * @param sone
1033          *              The Sone to load and update
1034          */
1035         public void loadSone(Sone sone) {
1036                 if (!sone.isLocal()) {
1037                         logger.log(Level.FINE, String.format("Tried to load non-local Sone: %s", sone));
1038                         return;
1039                 }
1040                 logger.info(String.format("Loading local Sone: %s", sone));
1041
1042                 /* initialize options. */
1043                 sone.getOptions().addBooleanOption("AutoFollow", new DefaultOption<Boolean>(false));
1044                 sone.getOptions().addBooleanOption("EnableSoneInsertNotifications", new DefaultOption<Boolean>(false));
1045                 sone.getOptions().addBooleanOption("ShowNotification/NewSones", new DefaultOption<Boolean>(true));
1046                 sone.getOptions().addBooleanOption("ShowNotification/NewPosts", new DefaultOption<Boolean>(true));
1047                 sone.getOptions().addBooleanOption("ShowNotification/NewReplies", new DefaultOption<Boolean>(true));
1048                 sone.getOptions().addEnumOption("ShowCustomAvatars", new DefaultOption<ShowCustomAvatars>(ShowCustomAvatars.NEVER));
1049
1050                 /* load Sone. */
1051                 String sonePrefix = "Sone/" + sone.getId();
1052                 Long soneTime = configuration.getLongValue(sonePrefix + "/Time").getValue(null);
1053                 if (soneTime == null) {
1054                         logger.log(Level.INFO, "Could not load Sone because no Sone has been saved.");
1055                         return;
1056                 }
1057                 String lastInsertFingerprint = configuration.getStringValue(sonePrefix + "/LastInsertFingerprint").getValue("");
1058
1059                 /* load profile. */
1060                 Profile profile = new Profile(sone);
1061                 profile.setFirstName(configuration.getStringValue(sonePrefix + "/Profile/FirstName").getValue(null));
1062                 profile.setMiddleName(configuration.getStringValue(sonePrefix + "/Profile/MiddleName").getValue(null));
1063                 profile.setLastName(configuration.getStringValue(sonePrefix + "/Profile/LastName").getValue(null));
1064                 profile.setBirthDay(configuration.getIntValue(sonePrefix + "/Profile/BirthDay").getValue(null));
1065                 profile.setBirthMonth(configuration.getIntValue(sonePrefix + "/Profile/BirthMonth").getValue(null));
1066                 profile.setBirthYear(configuration.getIntValue(sonePrefix + "/Profile/BirthYear").getValue(null));
1067
1068                 /* load profile fields. */
1069                 while (true) {
1070                         String fieldPrefix = sonePrefix + "/Profile/Fields/" + profile.getFields().size();
1071                         String fieldName = configuration.getStringValue(fieldPrefix + "/Name").getValue(null);
1072                         if (fieldName == null) {
1073                                 break;
1074                         }
1075                         String fieldValue = configuration.getStringValue(fieldPrefix + "/Value").getValue("");
1076                         profile.addField(fieldName).setValue(fieldValue);
1077                 }
1078
1079                 /* load posts. */
1080                 Set<Post> posts = new HashSet<Post>();
1081                 while (true) {
1082                         String postPrefix = sonePrefix + "/Posts/" + posts.size();
1083                         String postId = configuration.getStringValue(postPrefix + "/ID").getValue(null);
1084                         if (postId == null) {
1085                                 break;
1086                         }
1087                         String postRecipientId = configuration.getStringValue(postPrefix + "/Recipient").getValue(null);
1088                         long postTime = configuration.getLongValue(postPrefix + "/Time").getValue((long) 0);
1089                         String postText = configuration.getStringValue(postPrefix + "/Text").getValue(null);
1090                         if ((postTime == 0) || (postText == null)) {
1091                                 logger.log(Level.WARNING, "Invalid post found, aborting load!");
1092                                 return;
1093                         }
1094                         PostBuilder postBuilder = postBuilder().withId(postId).from(sone.getId()).withTime(postTime).withText(postText);
1095                         if ((postRecipientId != null) && (postRecipientId.length() == 43)) {
1096                                 postBuilder.to(postRecipientId);
1097                         }
1098                         posts.add(postBuilder.build());
1099                 }
1100
1101                 /* load replies. */
1102                 Set<PostReply> replies = new HashSet<PostReply>();
1103                 while (true) {
1104                         String replyPrefix = sonePrefix + "/Replies/" + replies.size();
1105                         String replyId = configuration.getStringValue(replyPrefix + "/ID").getValue(null);
1106                         if (replyId == null) {
1107                                 break;
1108                         }
1109                         String postId = configuration.getStringValue(replyPrefix + "/Post/ID").getValue(null);
1110                         long replyTime = configuration.getLongValue(replyPrefix + "/Time").getValue((long) 0);
1111                         String replyText = configuration.getStringValue(replyPrefix + "/Text").getValue(null);
1112                         if ((postId == null) || (replyTime == 0) || (replyText == null)) {
1113                                 logger.log(Level.WARNING, "Invalid reply found, aborting load!");
1114                                 return;
1115                         }
1116                         PostReplyBuilder postReplyBuilder = postReplyBuilder().withId(replyId).from(sone.getId()).to(postId).withTime(replyTime).withText(replyText);
1117                         replies.add(postReplyBuilder.build());
1118                 }
1119
1120                 /* load post likes. */
1121                 Set<String> likedPostIds = new HashSet<String>();
1122                 while (true) {
1123                         String likedPostId = configuration.getStringValue(sonePrefix + "/Likes/Post/" + likedPostIds.size() + "/ID").getValue(null);
1124                         if (likedPostId == null) {
1125                                 break;
1126                         }
1127                         likedPostIds.add(likedPostId);
1128                 }
1129
1130                 /* load reply likes. */
1131                 Set<String> likedReplyIds = new HashSet<String>();
1132                 while (true) {
1133                         String likedReplyId = configuration.getStringValue(sonePrefix + "/Likes/Reply/" + likedReplyIds.size() + "/ID").getValue(null);
1134                         if (likedReplyId == null) {
1135                                 break;
1136                         }
1137                         likedReplyIds.add(likedReplyId);
1138                 }
1139
1140                 /* load friends. */
1141                 Set<String> friends = new HashSet<String>();
1142                 while (true) {
1143                         String friendId = configuration.getStringValue(sonePrefix + "/Friends/" + friends.size() + "/ID").getValue(null);
1144                         if (friendId == null) {
1145                                 break;
1146                         }
1147                         friends.add(friendId);
1148                 }
1149
1150                 /* load albums. */
1151                 Map<String, Album> albums = Maps.newHashMap();
1152                 int albumCounter = 0;
1153                 while (true) {
1154                         String albumPrefix = sonePrefix + "/Albums/" + albumCounter++;
1155                         String albumId = configuration.getStringValue(albumPrefix + "/ID").getValue(null);
1156                         if (albumId == null) {
1157                                 break;
1158                         }
1159                         String albumTitle = configuration.getStringValue(albumPrefix + "/Title").getValue(null);
1160                         String albumDescription = configuration.getStringValue(albumPrefix + "/Description").getValue(null);
1161                         String albumParentId = configuration.getStringValue(albumPrefix + "/Parent").getValue(null);
1162                         String albumImageId = configuration.getStringValue(albumPrefix + "/AlbumImage").getValue(null);
1163                         if ((albumTitle == null) || (albumDescription == null)) {
1164                                 logger.log(Level.WARNING, "Invalid album found, aborting load!");
1165                                 return;
1166                         }
1167                         Album parentAlbum = sone.getRootAlbum();
1168                         if (albumParentId != null) {
1169                                 parentAlbum = albums.get(albumParentId);
1170                         }
1171                         Album album = parentAlbum.newAlbumBuilder().withId(albumId).build().modify().setTitle(albumTitle).setDescription(albumDescription).setAlbumImage(albumImageId).update();
1172                         albums.put(album.getId(), album);
1173                 }
1174
1175                 /* load images. */
1176                 int imageCounter = 0;
1177                 while (true) {
1178                         String imagePrefix = sonePrefix + "/Images/" + imageCounter++;
1179                         String imageId = configuration.getStringValue(imagePrefix + "/ID").getValue(null);
1180                         if (imageId == null) {
1181                                 break;
1182                         }
1183                         String albumId = configuration.getStringValue(imagePrefix + "/Album").getValue(null);
1184                         String key = configuration.getStringValue(imagePrefix + "/Key").getValue(null);
1185                         String title = configuration.getStringValue(imagePrefix + "/Title").getValue(null);
1186                         String description = configuration.getStringValue(imagePrefix + "/Description").getValue(null);
1187                         Long creationTime = configuration.getLongValue(imagePrefix + "/CreationTime").getValue(null);
1188                         Integer width = configuration.getIntValue(imagePrefix + "/Width").getValue(null);
1189                         Integer height = configuration.getIntValue(imagePrefix + "/Height").getValue(null);
1190                         if ((albumId == null) || (key == null) || (title == null) || (description == null) || (creationTime == null) || (width == null) || (height == null)) {
1191                                 logger.log(Level.WARNING, "Invalid image found, aborting load!");
1192                                 return;
1193                         }
1194                         Album album = albums.get(albumId);
1195                         if (album == null) {
1196                                 logger.log(Level.WARNING, "Invalid album image encountered, aborting load!");
1197                                 return;
1198                         }
1199                         album.newImageBuilder().withId(imageId).created(creationTime).at(key).sized(width, height).build().modify().setTitle(title).setDescription(description).update();
1200                 }
1201
1202                 /* load avatar. */
1203                 String avatarId = configuration.getStringValue(sonePrefix + "/Profile/Avatar").getValue(null);
1204                 if (avatarId != null) {
1205                         profile.setAvatar(getImage(avatarId).orNull());
1206                 }
1207
1208                 /* load options. */
1209                 sone.getOptions().getBooleanOption("AutoFollow").set(configuration.getBooleanValue(sonePrefix + "/Options/AutoFollow").getValue(null));
1210                 sone.getOptions().getBooleanOption("EnableSoneInsertNotifications").set(configuration.getBooleanValue(sonePrefix + "/Options/EnableSoneInsertNotifications").getValue(null));
1211                 sone.getOptions().getBooleanOption("ShowNotification/NewSones").set(configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewSones").getValue(null));
1212                 sone.getOptions().getBooleanOption("ShowNotification/NewPosts").set(configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewPosts").getValue(null));
1213                 sone.getOptions().getBooleanOption("ShowNotification/NewReplies").set(configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewReplies").getValue(null));
1214                 sone.getOptions().<ShowCustomAvatars>getEnumOption("ShowCustomAvatars").set(ShowCustomAvatars.valueOf(configuration.getStringValue(sonePrefix + "/Options/ShowCustomAvatars").getValue(ShowCustomAvatars.NEVER.name())));
1215
1216                 /* if we’re still here, Sone was loaded successfully. */
1217                 synchronized (sone) {
1218                         sone.setTime(soneTime);
1219                         sone.setProfile(profile);
1220                         sone.setPosts(posts);
1221                         sone.setReplies(replies);
1222                         sone.setLikePostIds(likedPostIds);
1223                         sone.setLikeReplyIds(likedReplyIds);
1224                         for (String friendId : friends) {
1225                                 followSone(sone, friendId);
1226                         }
1227                         for (Album album : sone.getRootAlbum().getAlbums()) {
1228                                 album.remove();
1229                         }
1230                         soneInserters.get(sone).setLastInsertFingerprint(lastInsertFingerprint);
1231                 }
1232                 synchronized (knownSones) {
1233                         for (String friend : friends) {
1234                                 knownSones.add(friend);
1235                         }
1236                 }
1237                 database.storePosts(sone, posts);
1238                 for (Post post : posts) {
1239                         post.setKnown(true);
1240                 }
1241                 database.storePostReplies(sone, replies);
1242                 for (PostReply reply : replies) {
1243                         reply.setKnown(true);
1244                 }
1245
1246                 logger.info(String.format("Sone loaded successfully: %s", sone));
1247         }
1248
1249         /**
1250          * Creates a new post.
1251          *
1252          * @param sone
1253          *              The Sone that creates the post
1254          * @param text
1255          *              The text of the post
1256          * @return The created post
1257          */
1258         public Post createPost(Sone sone, String text) {
1259                 return createPost(sone, System.currentTimeMillis(), text);
1260         }
1261
1262         /**
1263          * Creates a new post.
1264          *
1265          * @param sone
1266          *              The Sone that creates the post
1267          * @param time
1268          *              The time of the post
1269          * @param text
1270          *              The text of the post
1271          * @return The created post
1272          */
1273         public Post createPost(Sone sone, long time, String text) {
1274                 return createPost(sone, null, time, text);
1275         }
1276
1277         /**
1278          * Creates a new post.
1279          *
1280          * @param sone
1281          *              The Sone that creates the post
1282          * @param recipient
1283          *              The recipient Sone, or {@code null} if this post does not have a
1284          *              recipient
1285          * @param text
1286          *              The text of the post
1287          * @return The created post
1288          */
1289         public Post createPost(Sone sone, Optional<Sone> recipient, String text) {
1290                 return createPost(sone, recipient, System.currentTimeMillis(), text);
1291         }
1292
1293         /**
1294          * Creates a new post.
1295          *
1296          * @param sone
1297          *              The Sone that creates the post
1298          * @param recipient
1299          *              The recipient Sone, or {@code null} if this post does not have a
1300          *              recipient
1301          * @param time
1302          *              The time of the post
1303          * @param text
1304          *              The text of the post
1305          * @return The created post
1306          */
1307         public Post createPost(Sone sone, Optional<Sone> recipient, long time, String text) {
1308                 checkNotNull(text, "text must not be null");
1309                 checkArgument(text.trim().length() > 0, "text must not be empty");
1310                 if (!sone.isLocal()) {
1311                         logger.log(Level.FINE, String.format("Tried to create post for non-local Sone: %s", sone));
1312                         return null;
1313                 }
1314                 PostBuilder postBuilder = database.newPostBuilder();
1315                 postBuilder.from(sone.getId()).randomId().withTime(time).withText(text.trim());
1316                 if (recipient.isPresent()) {
1317                         postBuilder.to(recipient.get().getId());
1318                 }
1319                 final Post post = postBuilder.build();
1320                 database.storePost(post);
1321                 eventBus.post(new NewPostFoundEvent(post));
1322                 sone.addPost(post);
1323                 touchConfiguration();
1324                 localElementTicker.schedule(new Runnable() {
1325
1326                         /**
1327                          * {@inheritDoc}
1328                          */
1329                         @Override
1330                         public void run() {
1331                                 markPostKnown(post);
1332                         }
1333                 }, 10, TimeUnit.SECONDS);
1334                 return post;
1335         }
1336
1337         /**
1338          * Deletes the given post.
1339          *
1340          * @param post
1341          *              The post to delete
1342          */
1343         public void deletePost(Post post) {
1344                 if (!post.getSone().isLocal()) {
1345                         logger.log(Level.WARNING, String.format("Tried to delete post of non-local Sone: %s", post.getSone()));
1346                         return;
1347                 }
1348                 database.removePost(post);
1349                 eventBus.post(new PostRemovedEvent(post));
1350                 markPostKnown(post);
1351                 touchConfiguration();
1352         }
1353
1354         /**
1355          * Marks the given post as known, if it is currently not a known post
1356          * (according to {@link Post#isKnown()}).
1357          *
1358          * @param post
1359          *              The post to mark as known
1360          */
1361         public void markPostKnown(Post post) {
1362                 post.setKnown(true);
1363                 eventBus.post(new MarkPostKnownEvent(post));
1364                 touchConfiguration();
1365                 for (PostReply reply : getReplies(post.getId())) {
1366                         markReplyKnown(reply);
1367                 }
1368         }
1369
1370         /**
1371          * Bookmarks the given post.
1372          *
1373          * @param post
1374          *              The post to bookmark
1375          */
1376         public void bookmark(Post post) {
1377                 bookmarkPost(post.getId());
1378         }
1379
1380         /**
1381          * Bookmarks the post with the given ID.
1382          *
1383          * @param id
1384          *              The ID of the post to bookmark
1385          */
1386         public void bookmarkPost(String id) {
1387                 synchronized (bookmarkedPosts) {
1388                         bookmarkedPosts.add(id);
1389                 }
1390         }
1391
1392         /**
1393          * Removes the given post from the bookmarks.
1394          *
1395          * @param post
1396          *              The post to unbookmark
1397          */
1398         public void unbookmark(Post post) {
1399                 unbookmarkPost(post.getId());
1400         }
1401
1402         /**
1403          * Removes the post with the given ID from the bookmarks.
1404          *
1405          * @param id
1406          *              The ID of the post to unbookmark
1407          */
1408         public void unbookmarkPost(String id) {
1409                 synchronized (bookmarkedPosts) {
1410                         bookmarkedPosts.remove(id);
1411                 }
1412         }
1413
1414         /**
1415          * Creates a new reply.
1416          *
1417          * @param sone
1418          *              The Sone that creates the reply
1419          * @param post
1420          *              The post that this reply refers to
1421          * @param text
1422          *              The text of the reply
1423          * @return The created reply
1424          */
1425         public PostReply createReply(Sone sone, Post post, String text) {
1426                 checkNotNull(text, "text must not be null");
1427                 checkArgument(text.trim().length() > 0, "text must not be empty");
1428                 if (!sone.isLocal()) {
1429                         logger.log(Level.FINE, String.format("Tried to create reply for non-local Sone: %s", sone));
1430                         return null;
1431                 }
1432                 PostReplyBuilder postReplyBuilder = postReplyBuilder();
1433                 postReplyBuilder.randomId().from(sone.getId()).to(post.getId()).currentTime().withText(text.trim());
1434                 final PostReply reply = postReplyBuilder.build();
1435                 database.storePostReply(reply);
1436                 eventBus.post(new NewPostReplyFoundEvent(reply));
1437                 sone.addReply(reply);
1438                 touchConfiguration();
1439                 localElementTicker.schedule(new Runnable() {
1440
1441                         /**
1442                          * {@inheritDoc}
1443                          */
1444                         @Override
1445                         public void run() {
1446                                 markReplyKnown(reply);
1447                         }
1448                 }, 10, TimeUnit.SECONDS);
1449                 return reply;
1450         }
1451
1452         /**
1453          * Deletes the given reply.
1454          *
1455          * @param reply
1456          *              The reply to delete
1457          */
1458         public void deleteReply(PostReply reply) {
1459                 Sone sone = reply.getSone();
1460                 if (!sone.isLocal()) {
1461                         logger.log(Level.FINE, String.format("Tried to delete non-local reply: %s", reply));
1462                         return;
1463                 }
1464                 database.removePostReply(reply);
1465                 markReplyKnown(reply);
1466                 sone.removeReply(reply);
1467                 touchConfiguration();
1468         }
1469
1470         /**
1471          * Marks the given reply as known, if it is currently not a known reply
1472          * (according to {@link Reply#isKnown()}).
1473          *
1474          * @param reply
1475          *              The reply to mark as known
1476          */
1477         public void markReplyKnown(PostReply reply) {
1478                 boolean previouslyKnown = reply.isKnown();
1479                 reply.setKnown(true);
1480                 eventBus.post(new MarkPostReplyKnownEvent(reply));
1481                 if (!previouslyKnown) {
1482                         touchConfiguration();
1483                 }
1484         }
1485
1486         /**
1487          * Creates a new image.
1488          *
1489          * @param sone
1490          *              The Sone creating the image
1491          * @param album
1492          *              The album the image will be inserted into
1493          * @param temporaryImage
1494          *              The temporary image to create the image from
1495          * @return The newly created image
1496          */
1497         public Image createImage(Sone sone, Album album, TemporaryImage temporaryImage) {
1498                 checkNotNull(sone, "sone must not be null");
1499                 checkNotNull(album, "album must not be null");
1500                 checkNotNull(temporaryImage, "temporaryImage must not be null");
1501                 checkArgument(sone.isLocal(), "sone must be a local Sone");
1502                 checkArgument(sone.equals(album.getSone()), "album must belong to the given Sone");
1503                 Image image = album.newImageBuilder().withId(temporaryImage.getId()).createdNow().sized(temporaryImage.getWidth(), temporaryImage.getHeight()).build();
1504                 imageInserter.insertImage(temporaryImage, image);
1505                 return image;
1506         }
1507
1508         /**
1509          * Deletes the given image. This method will also delete a matching temporary
1510          * image.
1511          *
1512          * @param image
1513          *              The image to delete
1514          * @see #deleteTemporaryImage(TemporaryImage)
1515          */
1516         public void deleteImage(Image image) {
1517                 checkNotNull(image, "image must not be null");
1518                 checkArgument(image.getSone().isLocal(), "image must belong to a local Sone");
1519                 deleteTemporaryImage(image.getId());
1520                 image.remove();
1521                 touchConfiguration();
1522         }
1523
1524         /**
1525          * Creates a new temporary image.
1526          *
1527          * @param mimeType
1528          *              The MIME type of the temporary image
1529          * @param imageData
1530          *              The encoded data of the image
1531          * @return The temporary image
1532          */
1533         public TemporaryImage createTemporaryImage(String mimeType, byte[] imageData, int width, int height) {
1534                 TemporaryImage temporaryImage = new TemporaryImage(mimeType, imageData, width, height);
1535                 synchronized (temporaryImages) {
1536                         temporaryImages.put(temporaryImage.getId(), temporaryImage);
1537                 }
1538                 return temporaryImage;
1539         }
1540
1541         /**
1542          * Deletes the given temporary image.
1543          *
1544          * @param temporaryImage
1545          *              The temporary image to delete
1546          */
1547         public void deleteTemporaryImage(TemporaryImage temporaryImage) {
1548                 checkNotNull(temporaryImage, "temporaryImage must not be null");
1549                 deleteTemporaryImage(temporaryImage.getId());
1550         }
1551
1552         /**
1553          * Deletes the temporary image with the given ID.
1554          *
1555          * @param imageId
1556          *              The ID of the temporary image to delete
1557          */
1558         public void deleteTemporaryImage(String imageId) {
1559                 checkNotNull(imageId, "imageId must not be null");
1560                 synchronized (temporaryImages) {
1561                         temporaryImages.remove(imageId);
1562                 }
1563                 Optional<Image> image = getImage(imageId);
1564                 if (image.isPresent()) {
1565                         imageInserter.cancelImageInsert(image.get());
1566                 }
1567         }
1568
1569         /**
1570          * Notifies the core that the configuration, either of the core or of a single
1571          * local Sone, has changed, and that the configuration should be saved.
1572          */
1573         public void touchConfiguration() {
1574                 lastConfigurationUpdate = System.currentTimeMillis();
1575         }
1576
1577         //
1578         // SERVICE METHODS
1579         //
1580
1581         /** Starts the core. */
1582         @Override
1583         public void serviceStart() {
1584                 loadConfiguration();
1585                 updateChecker.start();
1586                 identityManager.start();
1587                 webOfTrustUpdater.init();
1588                 webOfTrustUpdater.start();
1589                 database.start();
1590         }
1591
1592         /** {@inheritDoc} */
1593         @Override
1594         public void serviceRun() {
1595                 long lastSaved = System.currentTimeMillis();
1596                 while (!shouldStop()) {
1597                         sleep(1000);
1598                         long now = System.currentTimeMillis();
1599                         if (shouldStop() || ((lastConfigurationUpdate > lastSaved) && ((now - lastConfigurationUpdate) > 5000))) {
1600                                 for (Sone localSone : getLocalSones()) {
1601                                         saveSone(localSone);
1602                                 }
1603                                 saveConfiguration();
1604                                 lastSaved = now;
1605                         }
1606                 }
1607         }
1608
1609         /** Stops the core. */
1610         @Override
1611         public void serviceStop() {
1612                 localElementTicker.shutdownNow();
1613                 synchronized (sones) {
1614                         for (Entry<Sone, SoneInserter> soneInserter : soneInserters.entrySet()) {
1615                                 soneInserter.getValue().stop();
1616                                 saveSone(soneInserter.getKey());
1617                         }
1618                 }
1619                 saveConfiguration();
1620                 database.stop();
1621                 webOfTrustUpdater.stop();
1622                 updateChecker.stop();
1623                 soneDownloader.stop();
1624                 soneDownloaders.shutdown();
1625                 identityManager.stop();
1626         }
1627
1628         //
1629         // PRIVATE METHODS
1630         //
1631
1632         /**
1633          * Saves the given Sone. This will persist all local settings for the given
1634          * Sone, such as the friends list and similar, private options.
1635          *
1636          * @param sone
1637          *              The Sone to save
1638          */
1639         private synchronized void saveSone(Sone sone) {
1640                 if (!sone.isLocal()) {
1641                         logger.log(Level.FINE, String.format("Tried to save non-local Sone: %s", sone));
1642                         return;
1643                 }
1644                 if (!(sone.getIdentity() instanceof OwnIdentity)) {
1645                         logger.log(Level.WARNING, String.format("Local Sone without OwnIdentity found, refusing to save: %s", sone));
1646                         return;
1647                 }
1648
1649                 logger.log(Level.INFO, String.format("Saving Sone: %s", sone));
1650                 try {
1651                         /* save Sone into configuration. */
1652                         String sonePrefix = "Sone/" + sone.getId();
1653                         configuration.getLongValue(sonePrefix + "/Time").setValue(sone.getTime());
1654                         configuration.getStringValue(sonePrefix + "/LastInsertFingerprint").setValue(soneInserters.get(sone).getLastInsertFingerprint());
1655
1656                         /* save profile. */
1657                         Profile profile = sone.getProfile();
1658                         configuration.getStringValue(sonePrefix + "/Profile/FirstName").setValue(profile.getFirstName());
1659                         configuration.getStringValue(sonePrefix + "/Profile/MiddleName").setValue(profile.getMiddleName());
1660                         configuration.getStringValue(sonePrefix + "/Profile/LastName").setValue(profile.getLastName());
1661                         configuration.getIntValue(sonePrefix + "/Profile/BirthDay").setValue(profile.getBirthDay());
1662                         configuration.getIntValue(sonePrefix + "/Profile/BirthMonth").setValue(profile.getBirthMonth());
1663                         configuration.getIntValue(sonePrefix + "/Profile/BirthYear").setValue(profile.getBirthYear());
1664                         configuration.getStringValue(sonePrefix + "/Profile/Avatar").setValue(profile.getAvatar());
1665
1666                         /* save profile fields. */
1667                         int fieldCounter = 0;
1668                         for (Field profileField : profile.getFields()) {
1669                                 String fieldPrefix = sonePrefix + "/Profile/Fields/" + fieldCounter++;
1670                                 configuration.getStringValue(fieldPrefix + "/Name").setValue(profileField.getName());
1671                                 configuration.getStringValue(fieldPrefix + "/Value").setValue(profileField.getValue());
1672                         }
1673                         configuration.getStringValue(sonePrefix + "/Profile/Fields/" + fieldCounter + "/Name").setValue(null);
1674
1675                         /* save posts. */
1676                         int postCounter = 0;
1677                         for (Post post : sone.getPosts()) {
1678                                 String postPrefix = sonePrefix + "/Posts/" + postCounter++;
1679                                 configuration.getStringValue(postPrefix + "/ID").setValue(post.getId());
1680                                 configuration.getStringValue(postPrefix + "/Recipient").setValue(post.getRecipientId().orNull());
1681                                 configuration.getLongValue(postPrefix + "/Time").setValue(post.getTime());
1682                                 configuration.getStringValue(postPrefix + "/Text").setValue(post.getText());
1683                         }
1684                         configuration.getStringValue(sonePrefix + "/Posts/" + postCounter + "/ID").setValue(null);
1685
1686                         /* save replies. */
1687                         int replyCounter = 0;
1688                         for (PostReply reply : sone.getReplies()) {
1689                                 String replyPrefix = sonePrefix + "/Replies/" + replyCounter++;
1690                                 configuration.getStringValue(replyPrefix + "/ID").setValue(reply.getId());
1691                                 configuration.getStringValue(replyPrefix + "/Post/ID").setValue(reply.getPostId());
1692                                 configuration.getLongValue(replyPrefix + "/Time").setValue(reply.getTime());
1693                                 configuration.getStringValue(replyPrefix + "/Text").setValue(reply.getText());
1694                         }
1695                         configuration.getStringValue(sonePrefix + "/Replies/" + replyCounter + "/ID").setValue(null);
1696
1697                         /* save post likes. */
1698                         int postLikeCounter = 0;
1699                         for (String postId : sone.getLikedPostIds()) {
1700                                 configuration.getStringValue(sonePrefix + "/Likes/Post/" + postLikeCounter++ + "/ID").setValue(postId);
1701                         }
1702                         configuration.getStringValue(sonePrefix + "/Likes/Post/" + postLikeCounter + "/ID").setValue(null);
1703
1704                         /* save reply likes. */
1705                         int replyLikeCounter = 0;
1706                         for (String replyId : sone.getLikedReplyIds()) {
1707                                 configuration.getStringValue(sonePrefix + "/Likes/Reply/" + replyLikeCounter++ + "/ID").setValue(replyId);
1708                         }
1709                         configuration.getStringValue(sonePrefix + "/Likes/Reply/" + replyLikeCounter + "/ID").setValue(null);
1710
1711                         /* save friends. */
1712                         int friendCounter = 0;
1713                         for (String friendId : sone.getFriends()) {
1714                                 configuration.getStringValue(sonePrefix + "/Friends/" + friendCounter++ + "/ID").setValue(friendId);
1715                         }
1716                         configuration.getStringValue(sonePrefix + "/Friends/" + friendCounter + "/ID").setValue(null);
1717
1718                         /* save albums. first, collect in a flat structure, top-level first. */
1719                         List<Album> albums = FluentIterable.from(sone.getRootAlbum().getAlbums()).transformAndConcat(Album.FLATTENER).toList();
1720
1721                         int albumCounter = 0;
1722                         for (Album album : albums) {
1723                                 String albumPrefix = sonePrefix + "/Albums/" + albumCounter++;
1724                                 configuration.getStringValue(albumPrefix + "/ID").setValue(album.getId());
1725                                 configuration.getStringValue(albumPrefix + "/Title").setValue(album.getTitle());
1726                                 configuration.getStringValue(albumPrefix + "/Description").setValue(album.getDescription());
1727                                 configuration.getStringValue(albumPrefix + "/Parent").setValue(album.getParent().equals(sone.getRootAlbum()) ? null : album.getParent().getId());
1728                                 configuration.getStringValue(albumPrefix + "/AlbumImage").setValue(album.getAlbumImage().transform(GET_ID).orNull());
1729                         }
1730                         configuration.getStringValue(sonePrefix + "/Albums/" + albumCounter + "/ID").setValue(null);
1731
1732                         /* save images. */
1733                         int imageCounter = 0;
1734                         for (Album album : albums) {
1735                                 for (Image image : album.getImages()) {
1736                                         if (!image.isInserted()) {
1737                                                 continue;
1738                                         }
1739                                         String imagePrefix = sonePrefix + "/Images/" + imageCounter++;
1740                                         configuration.getStringValue(imagePrefix + "/ID").setValue(image.getId());
1741                                         configuration.getStringValue(imagePrefix + "/Album").setValue(album.getId());
1742                                         configuration.getStringValue(imagePrefix + "/Key").setValue(image.getKey());
1743                                         configuration.getStringValue(imagePrefix + "/Title").setValue(image.getTitle());
1744                                         configuration.getStringValue(imagePrefix + "/Description").setValue(image.getDescription());
1745                                         configuration.getLongValue(imagePrefix + "/CreationTime").setValue(image.getCreationTime());
1746                                         configuration.getIntValue(imagePrefix + "/Width").setValue(image.getWidth());
1747                                         configuration.getIntValue(imagePrefix + "/Height").setValue(image.getHeight());
1748                                 }
1749                         }
1750                         configuration.getStringValue(sonePrefix + "/Images/" + imageCounter + "/ID").setValue(null);
1751
1752                         /* save options. */
1753                         configuration.getBooleanValue(sonePrefix + "/Options/AutoFollow").setValue(sone.getOptions().getBooleanOption("AutoFollow").getReal());
1754                         configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewSones").setValue(sone.getOptions().getBooleanOption("ShowNotification/NewSones").getReal());
1755                         configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewPosts").setValue(sone.getOptions().getBooleanOption("ShowNotification/NewPosts").getReal());
1756                         configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewReplies").setValue(sone.getOptions().getBooleanOption("ShowNotification/NewReplies").getReal());
1757                         configuration.getBooleanValue(sonePrefix + "/Options/EnableSoneInsertNotifications").setValue(sone.getOptions().getBooleanOption("EnableSoneInsertNotifications").getReal());
1758                         configuration.getStringValue(sonePrefix + "/Options/ShowCustomAvatars").setValue(sone.getOptions().<ShowCustomAvatars>getEnumOption("ShowCustomAvatars").get().name());
1759
1760                         configuration.save();
1761
1762                         webOfTrustUpdater.setProperty((OwnIdentity) sone.getIdentity(), "Sone.LatestEdition", String.valueOf(sone.getLatestEdition()));
1763
1764                         logger.log(Level.INFO, String.format("Sone %s saved.", sone));
1765                 } catch (ConfigurationException ce1) {
1766                         logger.log(Level.WARNING, String.format("Could not save Sone: %s", sone), ce1);
1767                 }
1768         }
1769
1770         /** Saves the current options. */
1771         private void saveConfiguration() {
1772                 synchronized (configuration) {
1773                         if (storingConfiguration) {
1774                                 logger.log(Level.FINE, "Already storing configuration…");
1775                                 return;
1776                         }
1777                         storingConfiguration = true;
1778                 }
1779
1780                 /* store the options first. */
1781                 try {
1782                         configuration.getIntValue("Option/ConfigurationVersion").setValue(0);
1783                         configuration.getIntValue("Option/InsertionDelay").setValue(options.getIntegerOption("InsertionDelay").getReal());
1784                         configuration.getIntValue("Option/PostsPerPage").setValue(options.getIntegerOption("PostsPerPage").getReal());
1785                         configuration.getIntValue("Option/ImagesPerPage").setValue(options.getIntegerOption("ImagesPerPage").getReal());
1786                         configuration.getIntValue("Option/CharactersPerPost").setValue(options.getIntegerOption("CharactersPerPost").getReal());
1787                         configuration.getIntValue("Option/PostCutOffLength").setValue(options.getIntegerOption("PostCutOffLength").getReal());
1788                         configuration.getBooleanValue("Option/RequireFullAccess").setValue(options.getBooleanOption("RequireFullAccess").getReal());
1789                         configuration.getIntValue("Option/PositiveTrust").setValue(options.getIntegerOption("PositiveTrust").getReal());
1790                         configuration.getIntValue("Option/NegativeTrust").setValue(options.getIntegerOption("NegativeTrust").getReal());
1791                         configuration.getStringValue("Option/TrustComment").setValue(options.getStringOption("TrustComment").getReal());
1792                         configuration.getBooleanValue("Option/ActivateFcpInterface").setValue(options.getBooleanOption("ActivateFcpInterface").getReal());
1793                         configuration.getIntValue("Option/FcpFullAccessRequired").setValue(options.getIntegerOption("FcpFullAccessRequired").getReal());
1794
1795                         /* save known Sones. */
1796                         int soneCounter = 0;
1797                         synchronized (knownSones) {
1798                                 for (String knownSoneId : knownSones) {
1799                                         configuration.getStringValue("KnownSone/" + soneCounter++ + "/ID").setValue(knownSoneId);
1800                                 }
1801                                 configuration.getStringValue("KnownSone/" + soneCounter + "/ID").setValue(null);
1802                         }
1803
1804                         /* save Sone following times. */
1805                         soneCounter = 0;
1806                         synchronized (soneFollowingTimes) {
1807                                 for (Entry<String, Long> soneFollowingTime : soneFollowingTimes.entrySet()) {
1808                                         configuration.getStringValue("SoneFollowingTimes/" + soneCounter + "/Sone").setValue(soneFollowingTime.getKey());
1809                                         configuration.getLongValue("SoneFollowingTimes/" + soneCounter + "/Time").setValue(soneFollowingTime.getValue());
1810                                         ++soneCounter;
1811                                 }
1812                                 configuration.getStringValue("SoneFollowingTimes/" + soneCounter + "/Sone").setValue(null);
1813                         }
1814
1815                         /* save known posts. */
1816                         database.save();
1817
1818                         /* save bookmarked posts. */
1819                         int bookmarkedPostCounter = 0;
1820                         synchronized (bookmarkedPosts) {
1821                                 for (String bookmarkedPostId : bookmarkedPosts) {
1822                                         configuration.getStringValue("Bookmarks/Post/" + bookmarkedPostCounter++ + "/ID").setValue(bookmarkedPostId);
1823                                 }
1824                         }
1825                         configuration.getStringValue("Bookmarks/Post/" + bookmarkedPostCounter++ + "/ID").setValue(null);
1826
1827                         /* now save it. */
1828                         configuration.save();
1829
1830                 } catch (ConfigurationException ce1) {
1831                         logger.log(Level.SEVERE, "Could not store configuration!", ce1);
1832                 } catch (DatabaseException de1) {
1833                         logger.log(Level.SEVERE, "Could not save database!", de1);
1834                 } finally {
1835                         synchronized (configuration) {
1836                                 storingConfiguration = false;
1837                         }
1838                 }
1839         }
1840
1841         /** Loads the configuration. */
1842         private void loadConfiguration() {
1843                 /* create options. */
1844                 options.addIntegerOption("InsertionDelay", new DefaultOption<Integer>(60, new IntegerRangePredicate(0, Integer.MAX_VALUE), new OptionWatcher<Integer>() {
1845
1846                         @Override
1847                         public void optionChanged(Option<Integer> option, Integer oldValue, Integer newValue) {
1848                                 SoneInserter.setInsertionDelay(newValue);
1849                         }
1850
1851                 }));
1852                 options.addIntegerOption("PostsPerPage", new DefaultOption<Integer>(10, new IntegerRangePredicate(1, Integer.MAX_VALUE)));
1853                 options.addIntegerOption("ImagesPerPage", new DefaultOption<Integer>(9, new IntegerRangePredicate(1, Integer.MAX_VALUE)));
1854                 options.addIntegerOption("CharactersPerPost", new DefaultOption<Integer>(400, Predicates.<Integer>or(new IntegerRangePredicate(50, Integer.MAX_VALUE), Predicates.equalTo(-1))));
1855                 options.addIntegerOption("PostCutOffLength", new DefaultOption<Integer>(200, Predicates.<Integer>or(new IntegerRangePredicate(50, Integer.MAX_VALUE), Predicates.equalTo(-1))));
1856                 options.addBooleanOption("RequireFullAccess", new DefaultOption<Boolean>(false));
1857                 options.addIntegerOption("PositiveTrust", new DefaultOption<Integer>(75, new IntegerRangePredicate(0, 100)));
1858                 options.addIntegerOption("NegativeTrust", new DefaultOption<Integer>(-25, new IntegerRangePredicate(-100, 100)));
1859                 options.addStringOption("TrustComment", new DefaultOption<String>("Set from Sone Web Interface"));
1860                 options.addBooleanOption("ActivateFcpInterface", new DefaultOption<Boolean>(false, new OptionWatcher<Boolean>() {
1861
1862                         @Override
1863                         @SuppressWarnings("synthetic-access")
1864                         public void optionChanged(Option<Boolean> option, Boolean oldValue, Boolean newValue) {
1865                                 fcpInterface.setActive(newValue);
1866                         }
1867                 }));
1868                 options.addIntegerOption("FcpFullAccessRequired", new DefaultOption<Integer>(2, new OptionWatcher<Integer>() {
1869
1870                         @Override
1871                         @SuppressWarnings("synthetic-access")
1872                         public void optionChanged(Option<Integer> option, Integer oldValue, Integer newValue) {
1873                                 fcpInterface.setFullAccessRequired(FullAccessRequired.values()[newValue]);
1874                         }
1875
1876                 }));
1877
1878                 loadConfigurationValue("InsertionDelay");
1879                 loadConfigurationValue("PostsPerPage");
1880                 loadConfigurationValue("ImagesPerPage");
1881                 loadConfigurationValue("CharactersPerPost");
1882                 loadConfigurationValue("PostCutOffLength");
1883                 options.getBooleanOption("RequireFullAccess").set(configuration.getBooleanValue("Option/RequireFullAccess").getValue(null));
1884                 loadConfigurationValue("PositiveTrust");
1885                 loadConfigurationValue("NegativeTrust");
1886                 options.getStringOption("TrustComment").set(configuration.getStringValue("Option/TrustComment").getValue(null));
1887                 options.getBooleanOption("ActivateFcpInterface").set(configuration.getBooleanValue("Option/ActivateFcpInterface").getValue(null));
1888                 options.getIntegerOption("FcpFullAccessRequired").set(configuration.getIntValue("Option/FcpFullAccessRequired").getValue(null));
1889
1890                 /* load known Sones. */
1891                 int soneCounter = 0;
1892                 while (true) {
1893                         String knownSoneId = configuration.getStringValue("KnownSone/" + soneCounter++ + "/ID").getValue(null);
1894                         if (knownSoneId == null) {
1895                                 break;
1896                         }
1897                         synchronized (knownSones) {
1898                                 knownSones.add(knownSoneId);
1899                         }
1900                 }
1901
1902                 /* load Sone following times. */
1903                 soneCounter = 0;
1904                 while (true) {
1905                         String soneId = configuration.getStringValue("SoneFollowingTimes/" + soneCounter + "/Sone").getValue(null);
1906                         if (soneId == null) {
1907                                 break;
1908                         }
1909                         long time = configuration.getLongValue("SoneFollowingTimes/" + soneCounter + "/Time").getValue(Long.MAX_VALUE);
1910                         synchronized (soneFollowingTimes) {
1911                                 soneFollowingTimes.put(soneId, time);
1912                         }
1913                         ++soneCounter;
1914                 }
1915
1916                 /* load bookmarked posts. */
1917                 int bookmarkedPostCounter = 0;
1918                 while (true) {
1919                         String bookmarkedPostId = configuration.getStringValue("Bookmarks/Post/" + bookmarkedPostCounter++ + "/ID").getValue(null);
1920                         if (bookmarkedPostId == null) {
1921                                 break;
1922                         }
1923                         synchronized (bookmarkedPosts) {
1924                                 bookmarkedPosts.add(bookmarkedPostId);
1925                         }
1926                 }
1927
1928         }
1929
1930         /**
1931          * Loads an {@link Integer} configuration value for the option with the given
1932          * name, logging validation failures.
1933          *
1934          * @param optionName
1935          *              The name of the option to load
1936          */
1937         private void loadConfigurationValue(String optionName) {
1938                 try {
1939                         options.getIntegerOption(optionName).set(configuration.getIntValue("Option/" + optionName).getValue(null));
1940                 } catch (IllegalArgumentException iae1) {
1941                         logger.log(Level.WARNING, String.format("Invalid value for %s in configuration, using default.", optionName));
1942                 }
1943         }
1944
1945         /**
1946          * Notifies the core that a new {@link OwnIdentity} was added.
1947          *
1948          * @param ownIdentityAddedEvent
1949          *              The event
1950          */
1951         @Subscribe
1952         public void ownIdentityAdded(OwnIdentityAddedEvent ownIdentityAddedEvent) {
1953                 OwnIdentity ownIdentity = ownIdentityAddedEvent.ownIdentity();
1954                 logger.log(Level.FINEST, String.format("Adding OwnIdentity: %s", ownIdentity));
1955                 if (ownIdentity.hasContext("Sone")) {
1956                         addLocalSone(ownIdentity);
1957                 }
1958         }
1959
1960         /**
1961          * Notifies the core that an {@link OwnIdentity} was removed.
1962          *
1963          * @param ownIdentityRemovedEvent
1964          *              The event
1965          */
1966         @Subscribe
1967         public void ownIdentityRemoved(OwnIdentityRemovedEvent ownIdentityRemovedEvent) {
1968                 OwnIdentity ownIdentity = ownIdentityRemovedEvent.ownIdentity();
1969                 logger.log(Level.FINEST, String.format("Removing OwnIdentity: %s", ownIdentity));
1970                 trustedIdentities.removeAll(ownIdentity);
1971         }
1972
1973         /**
1974          * Notifies the core that a new {@link Identity} was added.
1975          *
1976          * @param identityAddedEvent
1977          *              The event
1978          */
1979         @Subscribe
1980         public void identityAdded(IdentityAddedEvent identityAddedEvent) {
1981                 Identity identity = identityAddedEvent.identity();
1982                 logger.log(Level.FINEST, String.format("Adding Identity: %s", identity));
1983                 trustedIdentities.put(identityAddedEvent.ownIdentity(), identity);
1984                 addRemoteSone(identity);
1985         }
1986
1987         /**
1988          * Notifies the core that an {@link Identity} was updated.
1989          *
1990          * @param identityUpdatedEvent
1991          *              The event
1992          */
1993         @Subscribe
1994         public void identityUpdated(IdentityUpdatedEvent identityUpdatedEvent) {
1995                 final Identity identity = identityUpdatedEvent.identity();
1996                 soneDownloaders.execute(new Runnable() {
1997
1998                         @Override
1999                         @SuppressWarnings("synthetic-access")
2000                         public void run() {
2001                                 Sone sone = getRemoteSone(identity.getId(), false);
2002                                 if (sone.isLocal()) {
2003                                         return;
2004                                 }
2005                                 sone.setIdentity(identity);
2006                                 sone.setLatestEdition(Numbers.safeParseLong(identity.getProperty("Sone.LatestEdition"), sone.getLatestEdition()));
2007                                 soneDownloader.addSone(sone);
2008                                 soneDownloader.fetchSone(sone);
2009                         }
2010                 });
2011         }
2012
2013         /**
2014          * Notifies the core that an {@link Identity} was removed.
2015          *
2016          * @param identityRemovedEvent
2017          *              The event
2018          */
2019         @Subscribe
2020         public void identityRemoved(IdentityRemovedEvent identityRemovedEvent) {
2021                 OwnIdentity ownIdentity = identityRemovedEvent.ownIdentity();
2022                 Identity identity = identityRemovedEvent.identity();
2023                 trustedIdentities.remove(ownIdentity, identity);
2024                 boolean foundIdentity = false;
2025                 for (Entry<OwnIdentity, Collection<Identity>> trustedIdentity : trustedIdentities.asMap().entrySet()) {
2026                         if (trustedIdentity.getKey().equals(ownIdentity)) {
2027                                 continue;
2028                         }
2029                         if (trustedIdentity.getValue().contains(identity)) {
2030                                 foundIdentity = true;
2031                         }
2032                 }
2033                 if (foundIdentity) {
2034                         /* some local identity still trusts this identity, don’t remove. */
2035                         return;
2036                 }
2037                 Optional<Sone> sone = getSone(identity.getId());
2038                 if (!sone.isPresent()) {
2039                         /* TODO - we don’t have the Sone anymore. should this happen? */
2040                         return;
2041                 }
2042                 database.removePosts(sone.get());
2043                 for (Post post : sone.get().getPosts()) {
2044                         eventBus.post(new PostRemovedEvent(post));
2045                 }
2046                 database.removePostReplies(sone.get());
2047                 for (PostReply reply : sone.get().getReplies()) {
2048                         eventBus.post(new PostReplyRemovedEvent(reply));
2049                 }
2050                 synchronized (sones) {
2051                         sones.remove(identity.getId());
2052                 }
2053                 eventBus.post(new SoneRemovedEvent(sone.get()));
2054         }
2055
2056         /**
2057          * Deletes the temporary image.
2058          *
2059          * @param imageInsertFinishedEvent
2060          *              The event
2061          */
2062         @Subscribe
2063         public void imageInsertFinished(ImageInsertFinishedEvent imageInsertFinishedEvent) {
2064                 logger.log(Level.WARNING, String.format("Image insert finished for %s: %s", imageInsertFinishedEvent.image(), imageInsertFinishedEvent.resultingUri()));
2065                 imageInsertFinishedEvent.image().modify().setKey(imageInsertFinishedEvent.resultingUri().toString()).update();
2066                 deleteTemporaryImage(imageInsertFinishedEvent.image().getId());
2067                 touchConfiguration();
2068         }
2069
2070 }