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

   1 /*
   2  * Sone - Core.java - Copyright © 2010 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 java.net.MalformedURLException;
  21 import java.util.ArrayList;
  22 import java.util.Collections;
  23 import java.util.HashMap;
  24 import java.util.HashSet;
  25 import java.util.List;
  26 import java.util.Map;
  27 import java.util.Set;
  28 import java.util.logging.Level;
  29 import java.util.logging.Logger;
  30
  31 import net.pterodactylus.sone.core.Options.DefaultOption;
  32 import net.pterodactylus.sone.core.Options.Option;
  33 import net.pterodactylus.sone.core.Options.OptionWatcher;
  34 import net.pterodactylus.sone.data.Client;
  35 import net.pterodactylus.sone.data.Post;
  36 import net.pterodactylus.sone.data.Profile;
  37 import net.pterodactylus.sone.data.Profile.Field;
  38 import net.pterodactylus.sone.data.Reply;
  39 import net.pterodactylus.sone.data.Sone;
  40 import net.pterodactylus.sone.freenet.wot.Identity;
  41 import net.pterodactylus.sone.freenet.wot.IdentityListener;
  42 import net.pterodactylus.sone.freenet.wot.IdentityManager;
  43 import net.pterodactylus.sone.freenet.wot.OwnIdentity;
  44 import net.pterodactylus.sone.freenet.wot.Trust;
  45 import net.pterodactylus.sone.freenet.wot.WebOfTrustException;
  46 import net.pterodactylus.sone.main.SonePlugin;
  47 import net.pterodactylus.util.config.Configuration;
  48 import net.pterodactylus.util.config.ConfigurationException;
  49 import net.pterodactylus.util.logging.Logging;
  50 import net.pterodactylus.util.number.Numbers;
  51 import net.pterodactylus.util.validation.Validation;
  52 import net.pterodactylus.util.version.Version;
  53 import freenet.keys.FreenetURI;
  54
  55 /**
  56  * The Sone core.
  57  *
  58  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  59  */
  60 public class Core implements IdentityListener, UpdateListener {
  61
  62         /**
  63          * Enumeration for the possible states of a {@link Sone}.
  64          *
  65          * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  66          */
  67         public enum SoneStatus {
  68
  69                 /** The Sone is unknown, i.e. not yet downloaded. */
  70                 unknown,
  71
  72                 /** The Sone is idle, i.e. not being downloaded or inserted. */
  73                 idle,
  74
  75                 /** The Sone is currently being inserted. */
  76                 inserting,
  77
  78                 /** The Sone is currently being downloaded. */
  79                 downloading,
  80         }
  81
  82         /** The logger. */
  83         private static final Logger logger = Logging.getLogger(Core.class);
  84
  85         /** The options. */
  86         private final Options options = new Options();
  87
  88         /** The preferences. */
  89         private final Preferences preferences = new Preferences(options);
  90
  91         /** The core listener manager. */
  92         private final CoreListenerManager coreListenerManager = new CoreListenerManager(this);
  93
  94         /** The configuration. */
  95         private Configuration configuration;
  96
  97         /** Whether we’re currently saving the configuration. */
  98         private boolean storingConfiguration = false;
  99
 100         /** The identity manager. */
 101         private final IdentityManager identityManager;
 102
 103         /** Interface to freenet. */
 104         private final FreenetInterface freenetInterface;
 105
 106         /** The Sone downloader. */
 107         private final SoneDownloader soneDownloader;
 108
 109         /** The update checker. */
 110         private final UpdateChecker updateChecker;
 111
 112         /** Whether the core has been stopped. */
 113         private volatile boolean stopped;
 114
 115         /** The Sones’ statuses. */
 116         /* synchronize access on itself. */
 117         private final Map<Sone, SoneStatus> soneStatuses = new HashMap<Sone, SoneStatus>();
 118
 119         /** Locked local Sones. */
 120         /* synchronize on itself. */
 121         private final Set<Sone> lockedSones = new HashSet<Sone>();
 122
 123         /** Sone inserters. */
 124         /* synchronize access on this on localSones. */
 125         private final Map<Sone, SoneInserter> soneInserters = new HashMap<Sone, SoneInserter>();
 126
 127         /** All local Sones. */
 128         /* synchronize access on this on itself. */
 129         private Map<String, Sone> localSones = new HashMap<String, Sone>();
 130
 131         /** All remote Sones. */
 132         /* synchronize access on this on itself. */
 133         private Map<String, Sone> remoteSones = new HashMap<String, Sone>();
 134
 135         /** All new Sones. */
 136         private Set<String> newSones = new HashSet<String>();
 137
 138         /** All known Sones. */
 139         /* synchronize access on {@link #newSones}. */
 140         private Set<String> knownSones = new HashSet<String>();
 141
 142         /** All posts. */
 143         private Map<String, Post> posts = new HashMap<String, Post>();
 144
 145         /** All new posts. */
 146         private Set<String> newPosts = new HashSet<String>();
 147
 148         /** All known posts. */
 149         /* synchronize access on {@link #newPosts}. */
 150         private Set<String> knownPosts = new HashSet<String>();
 151
 152         /** All replies. */
 153         private Map<String, Reply> replies = new HashMap<String, Reply>();
 154
 155         /** All new replies. */
 156         private Set<String> newReplies = new HashSet<String>();
 157
 158         /** All known replies. */
 159         private Set<String> knownReplies = new HashSet<String>();
 160
 161         /** All bookmarked posts. */
 162         /* synchronize access on itself. */
 163         private Set<String> bookmarkedPosts = new HashSet<String>();
 164
 165         /** Trusted identities, sorted by own identities. */
 166         private Map<OwnIdentity, Set<Identity>> trustedIdentities = Collections.synchronizedMap(new HashMap<OwnIdentity, Set<Identity>>());
 167
 168         /**
 169          * Creates a new core.
 170          *
 171          * @param configuration
 172          *            The configuration of the core
 173          * @param freenetInterface
 174          *            The freenet interface
 175          * @param identityManager
 176          *            The identity manager
 177          */
 178         public Core(Configuration configuration, FreenetInterface freenetInterface, IdentityManager identityManager) {
 179                 this.configuration = configuration;
 180                 this.freenetInterface = freenetInterface;
 181                 this.identityManager = identityManager;
 182                 this.soneDownloader = new SoneDownloader(this, freenetInterface);
 183                 this.updateChecker = new UpdateChecker(freenetInterface);
 184         }
 185
 186         //
 187         // LISTENER MANAGEMENT
 188         //
 189
 190         /**
 191          * Adds a new core listener.
 192          *
 193          * @param coreListener
 194          *            The listener to add
 195          */
 196         public void addCoreListener(CoreListener coreListener) {
 197                 coreListenerManager.addListener(coreListener);
 198         }
 199
 200         /**
 201          * Removes a core listener.
 202          *
 203          * @param coreListener
 204          *            The listener to remove
 205          */
 206         public void removeCoreListener(CoreListener coreListener) {
 207                 coreListenerManager.removeListener(coreListener);
 208         }
 209
 210         //
 211         // ACCESSORS
 212         //
 213
 214         /**
 215          * Sets the configuration to use. This will automatically save the current
 216          * configuration to the given configuration.
 217          *
 218          * @param configuration
 219          *            The new configuration to use
 220          */
 221         public void setConfiguration(Configuration configuration) {
 222                 this.configuration = configuration;
 223                 saveConfiguration();
 224         }
 225
 226         /**
 227          * Returns the options used by the core.
 228          *
 229          * @return The options of the core
 230          */
 231         public Preferences getPreferences() {
 232                 return preferences;
 233         }
 234
 235         /**
 236          * Returns the identity manager used by the core.
 237          *
 238          * @return The identity manager
 239          */
 240         public IdentityManager getIdentityManager() {
 241                 return identityManager;
 242         }
 243
 244         /**
 245          * Returns the update checker.
 246          *
 247          * @return The update checker
 248          */
 249         public UpdateChecker getUpdateChecker() {
 250                 return updateChecker;
 251         }
 252
 253         /**
 254          * Returns the status of the given Sone.
 255          *
 256          * @param sone
 257          *            The Sone to get the status for
 258          * @return The status of the Sone
 259          */
 260         public SoneStatus getSoneStatus(Sone sone) {
 261                 synchronized (soneStatuses) {
 262                         return soneStatuses.get(sone);
 263                 }
 264         }
 265
 266         /**
 267          * Sets the status of the given Sone.
 268          *
 269          * @param sone
 270          *            The Sone to set the status of
 271          * @param soneStatus
 272          *            The status to set
 273          */
 274         public void setSoneStatus(Sone sone, SoneStatus soneStatus) {
 275                 synchronized (soneStatuses) {
 276                         soneStatuses.put(sone, soneStatus);
 277                 }
 278         }
 279
 280         /**
 281          * Returns whether the given Sone is currently locked.
 282          *
 283          * @param sone
 284          *            The sone to check
 285          * @return {@code true} if the Sone is locked, {@code false} if it is not
 286          */
 287         public boolean isLocked(Sone sone) {
 288                 synchronized (lockedSones) {
 289                         return lockedSones.contains(sone);
 290                 }
 291         }
 292
 293         /**
 294          * Returns all Sones, remote and local.
 295          *
 296          * @return All Sones
 297          */
 298         public Set<Sone> getSones() {
 299                 Set<Sone> allSones = new HashSet<Sone>();
 300                 allSones.addAll(getLocalSones());
 301                 allSones.addAll(getRemoteSones());
 302                 return allSones;
 303         }
 304
 305         /**
 306          * Returns the Sone with the given ID, regardless whether it’s local or
 307          * remote.
 308          *
 309          * @param id
 310          *            The ID of the Sone to get
 311          * @return The Sone with the given ID, or {@code null} if there is no such
 312          *         Sone
 313          */
 314         public Sone getSone(String id) {
 315                 return getSone(id, true);
 316         }
 317
 318         /**
 319          * Returns the Sone with the given ID, regardless whether it’s local or
 320          * remote.
 321          *
 322          * @param id
 323          *            The ID of the Sone to get
 324          * @param create
 325          *            {@code true} to create a new Sone if none exists,
 326          *            {@code false} to return {@code null} if a Sone with the given
 327          *            ID does not exist
 328          * @return The Sone with the given ID, or {@code null} if there is no such
 329          *         Sone
 330          */
 331         public Sone getSone(String id, boolean create) {
 332                 if (isLocalSone(id)) {
 333                         return getLocalSone(id);
 334                 }
 335                 return getRemoteSone(id, create);
 336         }
 337
 338         /**
 339          * Checks whether the core knows a Sone with the given ID.
 340          *
 341          * @param id
 342          *            The ID of the Sone
 343          * @return {@code true} if there is a Sone with the given ID, {@code false}
 344          *         otherwise
 345          */
 346         public boolean hasSone(String id) {
 347                 return isLocalSone(id) || isRemoteSone(id);
 348         }
 349
 350         /**
 351          * Returns whether the given Sone is a local Sone.
 352          *
 353          * @param sone
 354          *            The Sone to check for its locality
 355          * @return {@code true} if the given Sone is local, {@code false} otherwise
 356          */
 357         public boolean isLocalSone(Sone sone) {
 358                 synchronized (localSones) {
 359                         return localSones.containsKey(sone.getId());
 360                 }
 361         }
 362
 363         /**
 364          * Returns whether the given ID is the ID of a local Sone.
 365          *
 366          * @param id
 367          *            The Sone ID to check for its locality
 368          * @return {@code true} if the given ID is a local Sone, {@code false}
 369          *         otherwise
 370          */
 371         public boolean isLocalSone(String id) {
 372                 synchronized (localSones) {
 373                         return localSones.containsKey(id);
 374                 }
 375         }
 376
 377         /**
 378          * Returns all local Sones.
 379          *
 380          * @return All local Sones
 381          */
 382         public Set<Sone> getLocalSones() {
 383                 synchronized (localSones) {
 384                         return new HashSet<Sone>(localSones.values());
 385                 }
 386         }
 387
 388         /**
 389          * Returns the local Sone with the given ID.
 390          *
 391          * @param id
 392          *            The ID of the Sone to get
 393          * @return The Sone with the given ID
 394          */
 395         public Sone getLocalSone(String id) {
 396                 return getLocalSone(id, true);
 397         }
 398
 399         /**
 400          * Returns the local Sone with the given ID, optionally creating a new Sone.
 401          *
 402          * @param id
 403          *            The ID of the Sone
 404          * @param create
 405          *            {@code true} to create a new Sone if none exists,
 406          *            {@code false} to return null if none exists
 407          * @return The Sone with the given ID, or {@code null}
 408          */
 409         public Sone getLocalSone(String id, boolean create) {
 410                 synchronized (localSones) {
 411                         Sone sone = localSones.get(id);
 412                         if ((sone == null) && create) {
 413                                 sone = new Sone(id);
 414                                 localSones.put(id, sone);
 415                                 setSoneStatus(sone, SoneStatus.unknown);
 416                         }
 417                         return sone;
 418                 }
 419         }
 420
 421         /**
 422          * Returns all remote Sones.
 423          *
 424          * @return All remote Sones
 425          */
 426         public Set<Sone> getRemoteSones() {
 427                 synchronized (remoteSones) {
 428                         return new HashSet<Sone>(remoteSones.values());
 429                 }
 430         }
 431
 432         /**
 433          * Returns the remote Sone with the given ID.
 434          *
 435          * @param id
 436          *            The ID of the remote Sone to get
 437          * @return The Sone with the given ID
 438          */
 439         public Sone getRemoteSone(String id) {
 440                 return getRemoteSone(id, true);
 441         }
 442
 443         /**
 444          * Returns the remote Sone with the given ID.
 445          *
 446          * @param id
 447          *            The ID of the remote Sone to get
 448          * @param create
 449          *            {@code true} to always create a Sone, {@code false} to return
 450          *            {@code null} if no Sone with the given ID exists
 451          * @return The Sone with the given ID
 452          */
 453         public Sone getRemoteSone(String id, boolean create) {
 454                 synchronized (remoteSones) {
 455                         Sone sone = remoteSones.get(id);
 456                         if ((sone == null) && create) {
 457                                 sone = new Sone(id);
 458                                 remoteSones.put(id, sone);
 459                                 setSoneStatus(sone, SoneStatus.unknown);
 460                         }
 461                         return sone;
 462                 }
 463         }
 464
 465         /**
 466          * Returns whether the given Sone is a remote Sone.
 467          *
 468          * @param sone
 469          *            The Sone to check
 470          * @return {@code true} if the given Sone is a remote Sone, {@code false}
 471          *         otherwise
 472          */
 473         public boolean isRemoteSone(Sone sone) {
 474                 synchronized (remoteSones) {
 475                         return remoteSones.containsKey(sone.getId());
 476                 }
 477         }
 478
 479         /**
 480          * Returns whether the Sone with the given ID is a remote Sone.
 481          *
 482          * @param id
 483          *            The ID of the Sone to check
 484          * @return {@code true} if the Sone with the given ID is a remote Sone,
 485          *         {@code false} otherwise
 486          */
 487         public boolean isRemoteSone(String id) {
 488                 synchronized (remoteSones) {
 489                         return remoteSones.containsKey(id);
 490                 }
 491         }
 492
 493         /**
 494          * Returns whether the Sone with the given ID is a new Sone.
 495          *
 496          * @param soneId
 497          *            The ID of the sone to check for
 498          * @return {@code true} if the given Sone is new, false otherwise
 499          */
 500         public boolean isNewSone(String soneId) {
 501                 synchronized (newSones) {
 502                         return !knownSones.contains(soneId) && newSones.contains(soneId);
 503                 }
 504         }
 505
 506         /**
 507          * Returns whether the given Sone has been modified.
 508          *
 509          * @param sone
 510          *            The Sone to check for modifications
 511          * @return {@code true} if a modification has been detected in the Sone,
 512          *         {@code false} otherwise
 513          */
 514         public boolean isModifiedSone(Sone sone) {
 515                 return (soneInserters.containsKey(sone)) ? soneInserters.get(sone).isModified() : false;
 516         }
 517
 518         /**
 519          * Returns whether the target Sone is trusted by the origin Sone.
 520          *
 521          * @param origin
 522          *            The origin Sone
 523          * @param target
 524          *            The target Sone
 525          * @return {@code true} if the target Sone is trusted by the origin Sone
 526          */
 527         public boolean isSoneTrusted(Sone origin, Sone target) {
 528                 Validation.begin().isNotNull("Origin", origin).isNotNull("Target", target).check().isInstanceOf("Origin’s OwnIdentity", origin.getIdentity(), OwnIdentity.class).check();
 529                 return trustedIdentities.containsKey(origin.getIdentity()) && trustedIdentities.get(origin.getIdentity()).contains(target.getIdentity());
 530         }
 531
 532         /**
 533          * Returns the post with the given ID.
 534          *
 535          * @param postId
 536          *            The ID of the post to get
 537          * @return The post with the given ID, or a new post with the given ID
 538          */
 539         public Post getPost(String postId) {
 540                 return getPost(postId, true);
 541         }
 542
 543         /**
 544          * Returns the post with the given ID, optionally creating a new post.
 545          *
 546          * @param postId
 547          *            The ID of the post to get
 548          * @param create
 549          *            {@code true} it create a new post if no post with the given ID
 550          *            exists, {@code false} to return {@code null}
 551          * @return The post, or {@code null} if there is no such post
 552          */
 553         public Post getPost(String postId, boolean create) {
 554                 synchronized (posts) {
 555                         Post post = posts.get(postId);
 556                         if ((post == null) && create) {
 557                                 post = new Post(postId);
 558                                 posts.put(postId, post);
 559                         }
 560                         return post;
 561                 }
 562         }
 563
 564         /**
 565          * Returns whether the given post ID is new.
 566          *
 567          * @param postId
 568          *            The post ID
 569          * @return {@code true} if the post is considered to be new, {@code false}
 570          *         otherwise
 571          */
 572         public boolean isNewPost(String postId) {
 573                 synchronized (newPosts) {
 574                         return !knownPosts.contains(postId) && newPosts.contains(postId);
 575                 }
 576         }
 577
 578         /**
 579          * Returns all posts that have the given Sone as recipient.
 580          *
 581          * @see Post#getRecipient()
 582          * @param recipient
 583          *            The recipient of the posts
 584          * @return All posts that have the given Sone as recipient
 585          */
 586         public Set<Post> getDirectedPosts(Sone recipient) {
 587                 Validation.begin().isNotNull("Recipient", recipient).check();
 588                 Set<Post> directedPosts = new HashSet<Post>();
 589                 synchronized (posts) {
 590                         for (Post post : posts.values()) {
 591                                 if (recipient.equals(post.getRecipient())) {
 592                                         directedPosts.add(post);
 593                                 }
 594                         }
 595                 }
 596                 return directedPosts;
 597         }
 598
 599         /**
 600          * Returns the reply with the given ID. If there is no reply with the given
 601          * ID yet, a new one is created.
 602          *
 603          * @param replyId
 604          *            The ID of the reply to get
 605          * @return The reply
 606          */
 607         public Reply getReply(String replyId) {
 608                 return getReply(replyId, true);
 609         }
 610
 611         /**
 612          * Returns the reply with the given ID. If there is no reply with the given
 613          * ID yet, a new one is created, unless {@code create} is false in which
 614          * case {@code null} is returned.
 615          *
 616          * @param replyId
 617          *            The ID of the reply to get
 618          * @param create
 619          *            {@code true} to always return a {@link Reply}, {@code false}
 620          *            to return {@code null} if no reply can be found
 621          * @return The reply, or {@code null} if there is no such reply
 622          */
 623         public Reply getReply(String replyId, boolean create) {
 624                 synchronized (replies) {
 625                         Reply reply = replies.get(replyId);
 626                         if (create && (reply == null)) {
 627                                 reply = new Reply(replyId);
 628                                 replies.put(replyId, reply);
 629                         }
 630                         return reply;
 631                 }
 632         }
 633
 634         /**
 635          * Returns all replies for the given post, order ascending by time.
 636          *
 637          * @param post
 638          *            The post to get all replies for
 639          * @return All replies for the given post
 640          */
 641         public List<Reply> getReplies(Post post) {
 642                 Set<Sone> sones = getSones();
 643                 List<Reply> replies = new ArrayList<Reply>();
 644                 for (Sone sone : sones) {
 645                         for (Reply reply : sone.getReplies()) {
 646                                 if (reply.getPost().equals(post)) {
 647                                         replies.add(reply);
 648                                 }
 649                         }
 650                 }
 651                 Collections.sort(replies, Reply.TIME_COMPARATOR);
 652                 return replies;
 653         }
 654
 655         /**
 656          * Returns whether the reply with the given ID is new.
 657          *
 658          * @param replyId
 659          *            The ID of the reply to check
 660          * @return {@code true} if the reply is considered to be new, {@code false}
 661          *         otherwise
 662          */
 663         public boolean isNewReply(String replyId) {
 664                 synchronized (newReplies) {
 665                         return !knownReplies.contains(replyId) && newReplies.contains(replyId);
 666                 }
 667         }
 668
 669         /**
 670          * Returns all Sones that have liked the given post.
 671          *
 672          * @param post
 673          *            The post to get the liking Sones for
 674          * @return The Sones that like the given post
 675          */
 676         public Set<Sone> getLikes(Post post) {
 677                 Set<Sone> sones = new HashSet<Sone>();
 678                 for (Sone sone : getSones()) {
 679                         if (sone.getLikedPostIds().contains(post.getId())) {
 680                                 sones.add(sone);
 681                         }
 682                 }
 683                 return sones;
 684         }
 685
 686         /**
 687          * Returns all Sones that have liked the given reply.
 688          *
 689          * @param reply
 690          *            The reply to get the liking Sones for
 691          * @return The Sones that like the given reply
 692          */
 693         public Set<Sone> getLikes(Reply reply) {
 694                 Set<Sone> sones = new HashSet<Sone>();
 695                 for (Sone sone : getSones()) {
 696                         if (sone.getLikedReplyIds().contains(reply.getId())) {
 697                                 sones.add(sone);
 698                         }
 699                 }
 700                 return sones;
 701         }
 702
 703         /**
 704          * Returns whether the given post is bookmarked.
 705          *
 706          * @param post
 707          *            The post to check
 708          * @return {@code true} if the given post is bookmarked, {@code false}
 709          *         otherwise
 710          */
 711         public boolean isBookmarked(Post post) {
 712                 return isPostBookmarked(post.getId());
 713         }
 714
 715         /**
 716          * Returns whether the post with the given ID is bookmarked.
 717          *
 718          * @param id
 719          *            The ID of the post to check
 720          * @return {@code true} if the post with the given ID is bookmarked,
 721          *         {@code false} otherwise
 722          */
 723         public boolean isPostBookmarked(String id) {
 724                 synchronized (bookmarkedPosts) {
 725                         return bookmarkedPosts.contains(id);
 726                 }
 727         }
 728
 729         /**
 730          * Returns all currently known bookmarked posts.
 731          *
 732          * @return All bookmarked posts
 733          */
 734         public Set<Post> getBookmarkedPosts() {
 735                 Set<Post> posts = new HashSet<Post>();
 736                 synchronized (bookmarkedPosts) {
 737                         for (String bookmarkedPostId : bookmarkedPosts) {
 738                                 Post post = getPost(bookmarkedPostId, false);
 739                                 if (post != null) {
 740                                         posts.add(post);
 741                                 }
 742                         }
 743                 }
 744                 return posts;
 745         }
 746
 747         //
 748         // ACTIONS
 749         //
 750
 751         /**
 752          * Locks the given Sone. A locked Sone will not be inserted by
 753          * {@link SoneInserter} until it is {@link #unlockSone(Sone) unlocked}
 754          * again.
 755          *
 756          * @param sone
 757          *            The sone to lock
 758          */
 759         public void lockSone(Sone sone) {
 760                 synchronized (lockedSones) {
 761                         if (lockedSones.add(sone)) {
 762                                 coreListenerManager.fireSoneLocked(sone);
 763                         }
 764                 }
 765         }
 766
 767         /**
 768          * Unlocks the given Sone.
 769          *
 770          * @see #lockSone(Sone)
 771          * @param sone
 772          *            The sone to unlock
 773          */
 774         public void unlockSone(Sone sone) {
 775                 synchronized (lockedSones) {
 776                         if (lockedSones.remove(sone)) {
 777                                 coreListenerManager.fireSoneUnlocked(sone);
 778                         }
 779                 }
 780         }
 781
 782         /**
 783          * Adds a local Sone from the given ID which has to be the ID of an own
 784          * identity.
 785          *
 786          * @param id
 787          *            The ID of an own identity to add a Sone for
 788          * @return The added (or already existing) Sone
 789          */
 790         public Sone addLocalSone(String id) {
 791                 synchronized (localSones) {
 792                         if (localSones.containsKey(id)) {
 793                                 logger.log(Level.FINE, "Tried to add known local Sone: %s", id);
 794                                 return localSones.get(id);
 795                         }
 796                         OwnIdentity ownIdentity = identityManager.getOwnIdentity(id);
 797                         if (ownIdentity == null) {
 798                                 logger.log(Level.INFO, "Invalid Sone ID: %s", id);
 799                                 return null;
 800                         }
 801                         return addLocalSone(ownIdentity);
 802                 }
 803         }
 804
 805         /**
 806          * Adds a local Sone from the given own identity.
 807          *
 808          * @param ownIdentity
 809          *            The own identity to create a Sone from
 810          * @return The added (or already existing) Sone
 811          */
 812         public Sone addLocalSone(OwnIdentity ownIdentity) {
 813                 if (ownIdentity == null) {
 814                         logger.log(Level.WARNING, "Given OwnIdentity is null!");
 815                         return null;
 816                 }
 817                 synchronized (localSones) {
 818                         final Sone sone;
 819                         try {
 820                                 sone = getLocalSone(ownIdentity.getId()).setIdentity(ownIdentity).setInsertUri(new FreenetURI(ownIdentity.getInsertUri())).setRequestUri(new FreenetURI(ownIdentity.getRequestUri()));
 821                         } catch (MalformedURLException mue1) {
 822                                 logger.log(Level.SEVERE, "Could not convert the Identity’s URIs to Freenet URIs: " + ownIdentity.getInsertUri() + ", " + ownIdentity.getRequestUri(), mue1);
 823                                 return null;
 824                         }
 825                         sone.setLatestEdition(Numbers.safeParseLong(ownIdentity.getProperty("Sone.LatestEdition"), (long) 0));
 826                         sone.setClient(new Client("Sone", SonePlugin.VERSION.toString()));
 827                         /* TODO - load posts ’n stuff */
 828                         localSones.put(ownIdentity.getId(), sone);
 829                         final SoneInserter soneInserter = new SoneInserter(this, freenetInterface, sone);
 830                         soneInserters.put(sone, soneInserter);
 831                         setSoneStatus(sone, SoneStatus.idle);
 832                         loadSone(sone);
 833                         if (!preferences.isSoneRescueMode()) {
 834                                 soneInserter.start();
 835                         }
 836                         new Thread(new Runnable() {
 837
 838                                 @Override
 839                                 @SuppressWarnings("synthetic-access")
 840                                 public void run() {
 841                                         if (!preferences.isSoneRescueMode()) {
 842                                                 return;
 843                                         }
 844                                         logger.log(Level.INFO, "Trying to restore Sone from Freenet…");
 845                                         coreListenerManager.fireRescuingSone(sone);
 846                                         lockSone(sone);
 847                                         long edition = sone.getLatestEdition();
 848                                         while (!stopped && (edition >= 0) && preferences.isSoneRescueMode()) {
 849                                                 logger.log(Level.FINE, "Downloading edition " + edition + "…");
 850                                                 soneDownloader.fetchSone(sone, sone.getRequestUri().setKeyType("SSK").setDocName("Sone-" + edition));
 851                                                 --edition;
 852                                         }
 853                                         logger.log(Level.INFO, "Finished restoring Sone from Freenet, starting Inserter…");
 854                                         saveSone(sone);
 855                                         coreListenerManager.fireRescuedSone(sone);
 856                                         soneInserter.start();
 857                                 }
 858
 859                         }, "Sone Downloader").start();
 860                         return sone;
 861                 }
 862         }
 863
 864         /**
 865          * Creates a new Sone for the given own identity.
 866          *
 867          * @param ownIdentity
 868          *            The own identity to create a Sone for
 869          * @return The created Sone
 870          */
 871         public Sone createSone(OwnIdentity ownIdentity) {
 872                 try {
 873                         ownIdentity.addContext("Sone");
 874                 } catch (WebOfTrustException wote1) {
 875                         logger.log(Level.SEVERE, "Could not add “Sone” context to own identity: " + ownIdentity, wote1);
 876                         return null;
 877                 }
 878                 Sone sone = addLocalSone(ownIdentity);
 879                 return sone;
 880         }
 881
 882         /**
 883          * Adds the Sone of the given identity.
 884          *
 885          * @param identity
 886          *            The identity whose Sone to add
 887          * @return The added or already existing Sone
 888          */
 889         public Sone addRemoteSone(Identity identity) {
 890                 if (identity == null) {
 891                         logger.log(Level.WARNING, "Given Identity is null!");
 892                         return null;
 893                 }
 894                 synchronized (remoteSones) {
 895                         final Sone sone = getRemoteSone(identity.getId()).setIdentity(identity);
 896                         boolean newSone = sone.getRequestUri() == null;
 897                         sone.setRequestUri(getSoneUri(identity.getRequestUri()));
 898                         sone.setLatestEdition(Numbers.safeParseLong(identity.getProperty("Sone.LatestEdition"), (long) 0));
 899                         if (newSone) {
 900                                 synchronized (newSones) {
 901                                         newSone = !knownSones.contains(sone.getId());
 902                                         if (newSone) {
 903                                                 newSones.add(sone.getId());
 904                                         }
 905                                 }
 906                                 if (newSone) {
 907                                         coreListenerManager.fireNewSoneFound(sone);
 908                                 }
 909                         }
 910                         remoteSones.put(identity.getId(), sone);
 911                         soneDownloader.addSone(sone);
 912                         setSoneStatus(sone, SoneStatus.unknown);
 913                         new Thread(new Runnable() {
 914
 915                                 @Override
 916                                 @SuppressWarnings("synthetic-access")
 917                                 public void run() {
 918                                         soneDownloader.fetchSone(sone);
 919                                 }
 920
 921                         }, "Sone Downloader").start();
 922                         return sone;
 923                 }
 924         }
 925
 926         /**
 927          * Retrieves the trust relationship from the origin to the target. If the
 928          * trust relationship can not be retrieved, {@code null} is returned.
 929          *
 930          * @see Identity#getTrust(OwnIdentity)
 931          * @param origin
 932          *            The origin of the trust tree
 933          * @param target
 934          *            The target of the trust
 935          * @return The trust relationship
 936          */
 937         public Trust getTrust(Sone origin, Sone target) {
 938                 if (!isLocalSone(origin)) {
 939                         logger.log(Level.WARNING, "Tried to get trust from remote Sone: %s", origin);
 940                         return null;
 941                 }
 942                 return target.getIdentity().getTrust((OwnIdentity) origin.getIdentity());
 943         }
 944
 945         /**
 946          * Sets the trust value of the given origin Sone for the target Sone.
 947          *
 948          * @param origin
 949          *            The origin Sone
 950          * @param target
 951          *            The target Sone
 952          * @param trustValue
 953          *            The trust value (from {@code -100} to {@code 100})
 954          */
 955         public void setTrust(Sone origin, Sone target, int trustValue) {
 956                 Validation.begin().isNotNull("Trust Origin", origin).check().isInstanceOf("Trust Origin", origin.getIdentity(), OwnIdentity.class).isNotNull("Trust Target", target).isLessOrEqual("Trust Value", trustValue, 100).isGreaterOrEqual("Trust Value", trustValue, -100).check();
 957                 try {
 958                         ((OwnIdentity) origin.getIdentity()).setTrust(target.getIdentity(), trustValue, preferences.getTrustComment());
 959                 } catch (WebOfTrustException wote1) {
 960                         logger.log(Level.WARNING, "Could not set trust for Sone: " + target, wote1);
 961                 }
 962         }
 963
 964         /**
 965          * Removes any trust assignment for the given target Sone.
 966          *
 967          * @param origin
 968          *            The trust origin
 969          * @param target
 970          *            The trust target
 971          */
 972         public void removeTrust(Sone origin, Sone target) {
 973                 Validation.begin().isNotNull("Trust Origin", origin).isNotNull("Trust Target", target).check().isInstanceOf("Trust Origin Identity", origin.getIdentity(), OwnIdentity.class).check();
 974                 try {
 975                         ((OwnIdentity) origin.getIdentity()).removeTrust(target.getIdentity());
 976                 } catch (WebOfTrustException wote1) {
 977                         logger.log(Level.WARNING, "Could not remove trust for Sone: " + target, wote1);
 978                 }
 979         }
 980
 981         /**
 982          * Assigns the configured positive trust value for the given target.
 983          *
 984          * @param origin
 985          *            The trust origin
 986          * @param target
 987          *            The trust target
 988          */
 989         public void trustSone(Sone origin, Sone target) {
 990                 setTrust(origin, target, preferences.getPositiveTrust());
 991         }
 992
 993         /**
 994          * Assigns the configured negative trust value for the given target.
 995          *
 996          * @param origin
 997          *            The trust origin
 998          * @param target
 999          *            The trust target
1000          */
1001         public void distrustSone(Sone origin, Sone target) {
1002                 setTrust(origin, target, preferences.getNegativeTrust());
1003         }
1004
1005         /**
1006          * Removes the trust assignment for the given target.
1007          *
1008          * @param origin
1009          *            The trust origin
1010          * @param target
1011          *            The trust target
1012          */
1013         public void untrustSone(Sone origin, Sone target) {
1014                 removeTrust(origin, target);
1015         }
1016
1017         /**
1018          * Updates the stores Sone with the given Sone.
1019          *
1020          * @param sone
1021          *            The updated Sone
1022          */
1023         public void updateSone(Sone sone) {
1024                 if (hasSone(sone.getId())) {
1025                         boolean soneRescueMode = isLocalSone(sone) && preferences.isSoneRescueMode();
1026                         Sone storedSone = getSone(sone.getId());
1027                         if (!soneRescueMode && !(sone.getTime() > storedSone.getTime())) {
1028                                 logger.log(Level.FINE, "Downloaded Sone %s is not newer than stored Sone %s.", new Object[] { sone, storedSone });
1029                                 return;
1030                         }
1031                         synchronized (posts) {
1032                                 if (!soneRescueMode) {
1033                                         for (Post post : storedSone.getPosts()) {
1034                                                 posts.remove(post.getId());
1035                                                 if (!sone.getPosts().contains(post)) {
1036                                                         coreListenerManager.firePostRemoved(post);
1037                                                 }
1038                                         }
1039                                 }
1040                                 List<Post> storedPosts = storedSone.getPosts();
1041                                 synchronized (newPosts) {
1042                                         for (Post post : sone.getPosts()) {
1043                                                 post.setSone(storedSone);
1044                                                 if (!storedPosts.contains(post) && !knownPosts.contains(post.getId())) {
1045                                                         newPosts.add(post.getId());
1046                                                         coreListenerManager.fireNewPostFound(post);
1047                                                 }
1048                                                 posts.put(post.getId(), post);
1049                                         }
1050                                 }
1051                         }
1052                         synchronized (replies) {
1053                                 if (!soneRescueMode) {
1054                                         for (Reply reply : storedSone.getReplies()) {
1055                                                 replies.remove(reply.getId());
1056                                                 if (!sone.getReplies().contains(reply)) {
1057                                                         coreListenerManager.fireReplyRemoved(reply);
1058                                                 }
1059                                         }
1060                                 }
1061                                 Set<Reply> storedReplies = storedSone.getReplies();
1062                                 synchronized (newReplies) {
1063                                         for (Reply reply : sone.getReplies()) {
1064                                                 reply.setSone(storedSone);
1065                                                 if (!storedReplies.contains(reply) && !knownReplies.contains(reply.getId())) {
1066                                                         newReplies.add(reply.getId());
1067                                                         coreListenerManager.fireNewReplyFound(reply);
1068                                                 }
1069                                                 replies.put(reply.getId(), reply);
1070                                         }
1071                                 }
1072                         }
1073                         synchronized (storedSone) {
1074                                 if (!soneRescueMode || (sone.getTime() > storedSone.getTime())) {
1075                                         storedSone.setTime(sone.getTime());
1076                                 }
1077                                 storedSone.setClient(sone.getClient());
1078                                 storedSone.setProfile(sone.getProfile());
1079                                 if (soneRescueMode) {
1080                                         for (Post post : sone.getPosts()) {
1081                                                 storedSone.addPost(post);
1082                                         }
1083                                         for (Reply reply : sone.getReplies()) {
1084                                                 storedSone.addReply(reply);
1085                                         }
1086                                         for (String likedPostId : sone.getLikedPostIds()) {
1087                                                 storedSone.addLikedPostId(likedPostId);
1088                                         }
1089                                         for (String likedReplyId : sone.getLikedReplyIds()) {
1090                                                 storedSone.addLikedReplyId(likedReplyId);
1091                                         }
1092                                 } else {
1093                                         storedSone.setPosts(sone.getPosts());
1094                                         storedSone.setReplies(sone.getReplies());
1095                                         storedSone.setLikePostIds(sone.getLikedPostIds());
1096                                         storedSone.setLikeReplyIds(sone.getLikedReplyIds());
1097                                 }
1098                                 storedSone.setLatestEdition(sone.getLatestEdition());
1099                         }
1100                 }
1101         }
1102
1103         /**
1104          * Deletes the given Sone. This will remove the Sone from the
1105          * {@link #getLocalSone(String) local Sones}, stops its {@link SoneInserter}
1106          * and remove the context from its identity.
1107          *
1108          * @param sone
1109          *            The Sone to delete
1110          */
1111         public void deleteSone(Sone sone) {
1112                 if (!(sone.getIdentity() instanceof OwnIdentity)) {
1113                         logger.log(Level.WARNING, "Tried to delete Sone of non-own identity: %s", sone);
1114                         return;
1115                 }
1116                 synchronized (localSones) {
1117                         if (!localSones.containsKey(sone.getId())) {
1118                                 logger.log(Level.WARNING, "Tried to delete non-local Sone: %s", sone);
1119                                 return;
1120                         }
1121                         localSones.remove(sone.getId());
1122                         soneInserters.remove(sone).stop();
1123                 }
1124                 try {
1125                         ((OwnIdentity) sone.getIdentity()).removeContext("Sone");
1126                         ((OwnIdentity) sone.getIdentity()).removeProperty("Sone.LatestEdition");
1127                 } catch (WebOfTrustException wote1) {
1128                         logger.log(Level.WARNING, "Could not remove context and properties from Sone: " + sone, wote1);
1129                 }
1130                 try {
1131                         configuration.getLongValue("Sone/" + sone.getId() + "/Time").setValue(null);
1132                 } catch (ConfigurationException ce1) {
1133                         logger.log(Level.WARNING, "Could not remove Sone from configuration!", ce1);
1134                 }
1135         }
1136
1137         /**
1138          * Marks the given Sone as known. If the Sone was {@link #isNewPost(String)
1139          * new} before, a {@link CoreListener#markSoneKnown(Sone)} event is fired.
1140          *
1141          * @param sone
1142          *            The Sone to mark as known
1143          */
1144         public void markSoneKnown(Sone sone) {
1145                 synchronized (newSones) {
1146                         if (newSones.remove(sone.getId())) {
1147                                 knownSones.add(sone.getId());
1148                                 coreListenerManager.fireMarkSoneKnown(sone);
1149                                 saveConfiguration();
1150                         }
1151                 }
1152         }
1153
1154         /**
1155          * Loads and updates the given Sone from the configuration. If any error is
1156          * encountered, loading is aborted and the given Sone is not changed.
1157          *
1158          * @param sone
1159          *            The Sone to load and update
1160          */
1161         public void loadSone(Sone sone) {
1162                 if (!isLocalSone(sone)) {
1163                         logger.log(Level.FINE, "Tried to load non-local Sone: %s", sone);
1164                         return;
1165                 }
1166
1167                 /* load Sone. */
1168                 String sonePrefix = "Sone/" + sone.getId();
1169                 Long soneTime = configuration.getLongValue(sonePrefix + "/Time").getValue(null);
1170                 if (soneTime == null) {
1171                         logger.log(Level.INFO, "Could not load Sone because no Sone has been saved.");
1172                         return;
1173                 }
1174                 String lastInsertFingerprint = configuration.getStringValue(sonePrefix + "/LastInsertFingerprint").getValue("");
1175
1176                 /* load profile. */
1177                 Profile profile = new Profile();
1178                 profile.setFirstName(configuration.getStringValue(sonePrefix + "/Profile/FirstName").getValue(null));
1179                 profile.setMiddleName(configuration.getStringValue(sonePrefix + "/Profile/MiddleName").getValue(null));
1180                 profile.setLastName(configuration.getStringValue(sonePrefix + "/Profile/LastName").getValue(null));
1181                 profile.setBirthDay(configuration.getIntValue(sonePrefix + "/Profile/BirthDay").getValue(null));
1182                 profile.setBirthMonth(configuration.getIntValue(sonePrefix + "/Profile/BirthMonth").getValue(null));
1183                 profile.setBirthYear(configuration.getIntValue(sonePrefix + "/Profile/BirthYear").getValue(null));
1184
1185                 /* load profile fields. */
1186                 while (true) {
1187                         String fieldPrefix = sonePrefix + "/Profile/Fields/" + profile.getFields().size();
1188                         String fieldName = configuration.getStringValue(fieldPrefix + "/Name").getValue(null);
1189                         if (fieldName == null) {
1190                                 break;
1191                         }
1192                         String fieldValue = configuration.getStringValue(fieldPrefix + "/Value").getValue("");
1193                         profile.addField(fieldName).setValue(fieldValue);
1194                 }
1195
1196                 /* load posts. */
1197                 Set<Post> posts = new HashSet<Post>();
1198                 while (true) {
1199                         String postPrefix = sonePrefix + "/Posts/" + posts.size();
1200                         String postId = configuration.getStringValue(postPrefix + "/ID").getValue(null);
1201                         if (postId == null) {
1202                                 break;
1203                         }
1204                         String postRecipientId = configuration.getStringValue(postPrefix + "/Recipient").getValue(null);
1205                         long postTime = configuration.getLongValue(postPrefix + "/Time").getValue((long) 0);
1206                         String postText = configuration.getStringValue(postPrefix + "/Text").getValue(null);
1207                         if ((postTime == 0) || (postText == null)) {
1208                                 logger.log(Level.WARNING, "Invalid post found, aborting load!");
1209                                 return;
1210                         }
1211                         Post post = getPost(postId).setSone(sone).setTime(postTime).setText(postText);
1212                         if ((postRecipientId != null) && (postRecipientId.length() == 43)) {
1213                                 post.setRecipient(getSone(postRecipientId));
1214                         }
1215                         posts.add(post);
1216                 }
1217
1218                 /* load replies. */
1219                 Set<Reply> replies = new HashSet<Reply>();
1220                 while (true) {
1221                         String replyPrefix = sonePrefix + "/Replies/" + replies.size();
1222                         String replyId = configuration.getStringValue(replyPrefix + "/ID").getValue(null);
1223                         if (replyId == null) {
1224                                 break;
1225                         }
1226                         String postId = configuration.getStringValue(replyPrefix + "/Post/ID").getValue(null);
1227                         long replyTime = configuration.getLongValue(replyPrefix + "/Time").getValue((long) 0);
1228                         String replyText = configuration.getStringValue(replyPrefix + "/Text").getValue(null);
1229                         if ((postId == null) || (replyTime == 0) || (replyText == null)) {
1230                                 logger.log(Level.WARNING, "Invalid reply found, aborting load!");
1231                                 return;
1232                         }
1233                         replies.add(getReply(replyId).setSone(sone).setPost(getPost(postId)).setTime(replyTime).setText(replyText));
1234                 }
1235
1236                 /* load post likes. */
1237                 Set<String> likedPostIds = new HashSet<String>();
1238                 while (true) {
1239                         String likedPostId = configuration.getStringValue(sonePrefix + "/Likes/Post/" + likedPostIds.size() + "/ID").getValue(null);
1240                         if (likedPostId == null) {
1241                                 break;
1242                         }
1243                         likedPostIds.add(likedPostId);
1244                 }
1245
1246                 /* load reply likes. */
1247                 Set<String> likedReplyIds = new HashSet<String>();
1248                 while (true) {
1249                         String likedReplyId = configuration.getStringValue(sonePrefix + "/Likes/Reply/" + likedReplyIds.size() + "/ID").getValue(null);
1250                         if (likedReplyId == null) {
1251                                 break;
1252                         }
1253                         likedReplyIds.add(likedReplyId);
1254                 }
1255
1256                 /* load friends. */
1257                 Set<String> friends = new HashSet<String>();
1258                 while (true) {
1259                         String friendId = configuration.getStringValue(sonePrefix + "/Friends/" + friends.size() + "/ID").getValue(null);
1260                         if (friendId == null) {
1261                                 break;
1262                         }
1263                         friends.add(friendId);
1264                 }
1265
1266                 /* if we’re still here, Sone was loaded successfully. */
1267                 synchronized (sone) {
1268                         sone.setTime(soneTime);
1269                         sone.setProfile(profile);
1270                         sone.setPosts(posts);
1271                         sone.setReplies(replies);
1272                         sone.setLikePostIds(likedPostIds);
1273                         sone.setLikeReplyIds(likedReplyIds);
1274                         sone.setFriends(friends);
1275                         soneInserters.get(sone).setLastInsertFingerprint(lastInsertFingerprint);
1276                 }
1277                 synchronized (newSones) {
1278                         for (String friend : friends) {
1279                                 knownSones.add(friend);
1280                         }
1281                 }
1282                 synchronized (newPosts) {
1283                         for (Post post : posts) {
1284                                 knownPosts.add(post.getId());
1285                         }
1286                 }
1287                 synchronized (newReplies) {
1288                         for (Reply reply : replies) {
1289                                 knownReplies.add(reply.getId());
1290                         }
1291                 }
1292         }
1293
1294         /**
1295          * Saves the given Sone. This will persist all local settings for the given
1296          * Sone, such as the friends list and similar, private options.
1297          *
1298          * @param sone
1299          *            The Sone to save
1300          */
1301         public synchronized void saveSone(Sone sone) {
1302                 if (!isLocalSone(sone)) {
1303                         logger.log(Level.FINE, "Tried to save non-local Sone: %s", sone);
1304                         return;
1305                 }
1306                 if (!(sone.getIdentity() instanceof OwnIdentity)) {
1307                         logger.log(Level.WARNING, "Local Sone without OwnIdentity found, refusing to save: %s", sone);
1308                         return;
1309                 }
1310
1311                 logger.log(Level.INFO, "Saving Sone: %s", sone);
1312                 try {
1313                         ((OwnIdentity) sone.getIdentity()).setProperty("Sone.LatestEdition", String.valueOf(sone.getLatestEdition()));
1314
1315                         /* save Sone into configuration. */
1316                         String sonePrefix = "Sone/" + sone.getId();
1317                         configuration.getLongValue(sonePrefix + "/Time").setValue(sone.getTime());
1318                         configuration.getStringValue(sonePrefix + "/LastInsertFingerprint").setValue(soneInserters.get(sone).getLastInsertFingerprint());
1319
1320                         /* save profile. */
1321                         Profile profile = sone.getProfile();
1322                         configuration.getStringValue(sonePrefix + "/Profile/FirstName").setValue(profile.getFirstName());
1323                         configuration.getStringValue(sonePrefix + "/Profile/MiddleName").setValue(profile.getMiddleName());
1324                         configuration.getStringValue(sonePrefix + "/Profile/LastName").setValue(profile.getLastName());
1325                         configuration.getIntValue(sonePrefix + "/Profile/BirthDay").setValue(profile.getBirthDay());
1326                         configuration.getIntValue(sonePrefix + "/Profile/BirthMonth").setValue(profile.getBirthMonth());
1327                         configuration.getIntValue(sonePrefix + "/Profile/BirthYear").setValue(profile.getBirthYear());
1328
1329                         /* save profile fields. */
1330                         int fieldCounter = 0;
1331                         for (Field profileField : profile.getFields()) {
1332                                 String fieldPrefix = sonePrefix + "/Profile/Fields/" + fieldCounter++;
1333                                 configuration.getStringValue(fieldPrefix + "/Name").setValue(profileField.getName());
1334                                 configuration.getStringValue(fieldPrefix + "/Value").setValue(profileField.getValue());
1335                         }
1336                         configuration.getStringValue(sonePrefix + "/Profile/Fields/" + fieldCounter + "/Name").setValue(null);
1337
1338                         /* save posts. */
1339                         int postCounter = 0;
1340                         for (Post post : sone.getPosts()) {
1341                                 String postPrefix = sonePrefix + "/Posts/" + postCounter++;
1342                                 configuration.getStringValue(postPrefix + "/ID").setValue(post.getId());
1343                                 configuration.getStringValue(postPrefix + "/Recipient").setValue((post.getRecipient() != null) ? post.getRecipient().getId() : null);
1344                                 configuration.getLongValue(postPrefix + "/Time").setValue(post.getTime());
1345                                 configuration.getStringValue(postPrefix + "/Text").setValue(post.getText());
1346                         }
1347                         configuration.getStringValue(sonePrefix + "/Posts/" + postCounter + "/ID").setValue(null);
1348
1349                         /* save replies. */
1350                         int replyCounter = 0;
1351                         for (Reply reply : sone.getReplies()) {
1352                                 String replyPrefix = sonePrefix + "/Replies/" + replyCounter++;
1353                                 configuration.getStringValue(replyPrefix + "/ID").setValue(reply.getId());
1354                                 configuration.getStringValue(replyPrefix + "/Post/ID").setValue(reply.getPost().getId());
1355                                 configuration.getLongValue(replyPrefix + "/Time").setValue(reply.getTime());
1356                                 configuration.getStringValue(replyPrefix + "/Text").setValue(reply.getText());
1357                         }
1358                         configuration.getStringValue(sonePrefix + "/Replies/" + replyCounter + "/ID").setValue(null);
1359
1360                         /* save post likes. */
1361                         int postLikeCounter = 0;
1362                         for (String postId : sone.getLikedPostIds()) {
1363                                 configuration.getStringValue(sonePrefix + "/Likes/Post/" + postLikeCounter++ + "/ID").setValue(postId);
1364                         }
1365                         configuration.getStringValue(sonePrefix + "/Likes/Post/" + postLikeCounter + "/ID").setValue(null);
1366
1367                         /* save reply likes. */
1368                         int replyLikeCounter = 0;
1369                         for (String replyId : sone.getLikedReplyIds()) {
1370                                 configuration.getStringValue(sonePrefix + "/Likes/Reply/" + replyLikeCounter++ + "/ID").setValue(replyId);
1371                         }
1372                         configuration.getStringValue(sonePrefix + "/Likes/Reply/" + replyLikeCounter + "/ID").setValue(null);
1373
1374                         /* save friends. */
1375                         int friendCounter = 0;
1376                         for (String friendId : sone.getFriends()) {
1377                                 configuration.getStringValue(sonePrefix + "/Friends/" + friendCounter++ + "/ID").setValue(friendId);
1378                         }
1379                         configuration.getStringValue(sonePrefix + "/Friends/" + friendCounter + "/ID").setValue(null);
1380
1381                         configuration.save();
1382                         logger.log(Level.INFO, "Sone %s saved.", sone);
1383                 } catch (ConfigurationException ce1) {
1384                         logger.log(Level.WARNING, "Could not save Sone: " + sone, ce1);
1385                 } catch (WebOfTrustException wote1) {
1386                         logger.log(Level.WARNING, "Could not set WoT property for Sone: " + sone, wote1);
1387                 }
1388         }
1389
1390         /**
1391          * Creates a new post.
1392          *
1393          * @param sone
1394          *            The Sone that creates the post
1395          * @param text
1396          *            The text of the post
1397          * @return The created post
1398          */
1399         public Post createPost(Sone sone, String text) {
1400                 return createPost(sone, System.currentTimeMillis(), text);
1401         }
1402
1403         /**
1404          * Creates a new post.
1405          *
1406          * @param sone
1407          *            The Sone that creates the post
1408          * @param time
1409          *            The time of the post
1410          * @param text
1411          *            The text of the post
1412          * @return The created post
1413          */
1414         public Post createPost(Sone sone, long time, String text) {
1415                 return createPost(sone, null, time, text);
1416         }
1417
1418         /**
1419          * Creates a new post.
1420          *
1421          * @param sone
1422          *            The Sone that creates the post
1423          * @param recipient
1424          *            The recipient Sone, or {@code null} if this post does not have
1425          *            a recipient
1426          * @param text
1427          *            The text of the post
1428          * @return The created post
1429          */
1430         public Post createPost(Sone sone, Sone recipient, String text) {
1431                 return createPost(sone, recipient, System.currentTimeMillis(), text);
1432         }
1433
1434         /**
1435          * Creates a new post.
1436          *
1437          * @param sone
1438          *            The Sone that creates the post
1439          * @param recipient
1440          *            The recipient Sone, or {@code null} if this post does not have
1441          *            a recipient
1442          * @param time
1443          *            The time of the post
1444          * @param text
1445          *            The text of the post
1446          * @return The created post
1447          */
1448         public Post createPost(Sone sone, Sone recipient, long time, String text) {
1449                 if (!isLocalSone(sone)) {
1450                         logger.log(Level.FINE, "Tried to create post for non-local Sone: %s", sone);
1451                         return null;
1452                 }
1453                 Post post = new Post(sone, time, text);
1454                 if (recipient != null) {
1455                         post.setRecipient(recipient);
1456                 }
1457                 synchronized (posts) {
1458                         posts.put(post.getId(), post);
1459                 }
1460                 synchronized (newPosts) {
1461                         knownPosts.add(post.getId());
1462                 }
1463                 sone.addPost(post);
1464                 saveSone(sone);
1465                 return post;
1466         }
1467
1468         /**
1469          * Deletes the given post.
1470          *
1471          * @param post
1472          *            The post to delete
1473          */
1474         public void deletePost(Post post) {
1475                 if (!isLocalSone(post.getSone())) {
1476                         logger.log(Level.WARNING, "Tried to delete post of non-local Sone: %s", post.getSone());
1477                         return;
1478                 }
1479                 post.getSone().removePost(post);
1480                 synchronized (posts) {
1481                         posts.remove(post.getId());
1482                 }
1483                 saveSone(post.getSone());
1484         }
1485
1486         /**
1487          * Marks the given post as known, if it is currently a new post (according
1488          * to {@link #isNewPost(String)}).
1489          *
1490          * @param post
1491          *            The post to mark as known
1492          */
1493         public void markPostKnown(Post post) {
1494                 synchronized (newPosts) {
1495                         if (newPosts.remove(post.getId())) {
1496                                 knownPosts.add(post.getId());
1497                                 coreListenerManager.fireMarkPostKnown(post);
1498                                 saveConfiguration();
1499                         }
1500                 }
1501         }
1502
1503         /**
1504          * Bookmarks the given post.
1505          *
1506          * @param post
1507          *            The post to bookmark
1508          */
1509         public void bookmark(Post post) {
1510                 bookmarkPost(post.getId());
1511         }
1512
1513         /**
1514          * Bookmarks the post with the given ID.
1515          *
1516          * @param id
1517          *            The ID of the post to bookmark
1518          */
1519         public void bookmarkPost(String id) {
1520                 synchronized (bookmarkedPosts) {
1521                         bookmarkedPosts.add(id);
1522                 }
1523         }
1524
1525         /**
1526          * Removes the given post from the bookmarks.
1527          *
1528          * @param post
1529          *            The post to unbookmark
1530          */
1531         public void unbookmark(Post post) {
1532                 unbookmarkPost(post.getId());
1533         }
1534
1535         /**
1536          * Removes the post with the given ID from the bookmarks.
1537          *
1538          * @param id
1539          *            The ID of the post to unbookmark
1540          */
1541         public void unbookmarkPost(String id) {
1542                 synchronized (bookmarkedPosts) {
1543                         bookmarkedPosts.remove(id);
1544                 }
1545         }
1546
1547         /**
1548          * Creates a new reply.
1549          *
1550          * @param sone
1551          *            The Sone that creates the reply
1552          * @param post
1553          *            The post that this reply refers to
1554          * @param text
1555          *            The text of the reply
1556          * @return The created reply
1557          */
1558         public Reply createReply(Sone sone, Post post, String text) {
1559                 return createReply(sone, post, System.currentTimeMillis(), text);
1560         }
1561
1562         /**
1563          * Creates a new reply.
1564          *
1565          * @param sone
1566          *            The Sone that creates the reply
1567          * @param post
1568          *            The post that this reply refers to
1569          * @param time
1570          *            The time of the reply
1571          * @param text
1572          *            The text of the reply
1573          * @return The created reply
1574          */
1575         public Reply createReply(Sone sone, Post post, long time, String text) {
1576                 if (!isLocalSone(sone)) {
1577                         logger.log(Level.FINE, "Tried to create reply for non-local Sone: %s", sone);
1578                         return null;
1579                 }
1580                 Reply reply = new Reply(sone, post, System.currentTimeMillis(), text);
1581                 synchronized (replies) {
1582                         replies.put(reply.getId(), reply);
1583                 }
1584                 synchronized (newReplies) {
1585                         knownReplies.add(reply.getId());
1586                 }
1587                 sone.addReply(reply);
1588                 saveSone(sone);
1589                 return reply;
1590         }
1591
1592         /**
1593          * Deletes the given reply.
1594          *
1595          * @param reply
1596          *            The reply to delete
1597          */
1598         public void deleteReply(Reply reply) {
1599                 Sone sone = reply.getSone();
1600                 if (!isLocalSone(sone)) {
1601                         logger.log(Level.FINE, "Tried to delete non-local reply: %s", reply);
1602                         return;
1603                 }
1604                 synchronized (replies) {
1605                         replies.remove(reply.getId());
1606                 }
1607                 sone.removeReply(reply);
1608                 saveSone(sone);
1609         }
1610
1611         /**
1612          * Marks the given reply as known, if it is currently a new reply (according
1613          * to {@link #isNewReply(String)}).
1614          *
1615          * @param reply
1616          *            The reply to mark as known
1617          */
1618         public void markReplyKnown(Reply reply) {
1619                 synchronized (newReplies) {
1620                         if (newReplies.remove(reply.getId())) {
1621                                 knownReplies.add(reply.getId());
1622                                 coreListenerManager.fireMarkReplyKnown(reply);
1623                                 saveConfiguration();
1624                         }
1625                 }
1626         }
1627
1628         /**
1629          * Starts the core.
1630          */
1631         public void start() {
1632                 loadConfiguration();
1633                 updateChecker.addUpdateListener(this);
1634                 updateChecker.start();
1635         }
1636
1637         /**
1638          * Stops the core.
1639          */
1640         public void stop() {
1641                 synchronized (localSones) {
1642                         for (SoneInserter soneInserter : soneInserters.values()) {
1643                                 soneInserter.stop();
1644                         }
1645                 }
1646                 updateChecker.stop();
1647                 updateChecker.removeUpdateListener(this);
1648                 soneDownloader.stop();
1649                 saveConfiguration();
1650                 stopped = true;
1651         }
1652
1653         /**
1654          * Saves the current options.
1655          */
1656         public void saveConfiguration() {
1657                 synchronized (configuration) {
1658                         if (storingConfiguration) {
1659                                 logger.log(Level.FINE, "Already storing configuration…");
1660                                 return;
1661                         }
1662                         storingConfiguration = true;
1663                 }
1664
1665                 /* store the options first. */
1666                 try {
1667                         configuration.getIntValue("Option/ConfigurationVersion").setValue(0);
1668                         configuration.getIntValue("Option/InsertionDelay").setValue(options.getIntegerOption("InsertionDelay").getReal());
1669                         configuration.getIntValue("Option/PositiveTrust").setValue(options.getIntegerOption("PositiveTrust").getReal());
1670                         configuration.getIntValue("Option/NegativeTrust").setValue(options.getIntegerOption("NegativeTrust").getReal());
1671                         configuration.getStringValue("Option/TrustComment").setValue(options.getStringOption("TrustComment").getReal());
1672                         configuration.getBooleanValue("Option/SoneRescueMode").setValue(options.getBooleanOption("SoneRescueMode").getReal());
1673                         configuration.getBooleanValue("Option/ClearOnNextRestart").setValue(options.getBooleanOption("ClearOnNextRestart").getReal());
1674                         configuration.getBooleanValue("Option/ReallyClearOnNextRestart").setValue(options.getBooleanOption("ReallyClearOnNextRestart").getReal());
1675
1676                         /* save known Sones. */
1677                         int soneCounter = 0;
1678                         synchronized (newSones) {
1679                                 for (String knownSoneId : knownSones) {
1680                                         configuration.getStringValue("KnownSone/" + soneCounter++ + "/ID").setValue(knownSoneId);
1681                                 }
1682                                 configuration.getStringValue("KnownSone/" + soneCounter + "/ID").setValue(null);
1683                         }
1684
1685                         /* save known posts. */
1686                         int postCounter = 0;
1687                         synchronized (newPosts) {
1688                                 for (String knownPostId : knownPosts) {
1689                                         configuration.getStringValue("KnownPosts/" + postCounter++ + "/ID").setValue(knownPostId);
1690                                 }
1691                                 configuration.getStringValue("KnownPosts/" + postCounter + "/ID").setValue(null);
1692                         }
1693
1694                         /* save known replies. */
1695                         int replyCounter = 0;
1696                         synchronized (newReplies) {
1697                                 for (String knownReplyId : knownReplies) {
1698                                         configuration.getStringValue("KnownReplies/" + replyCounter++ + "/ID").setValue(knownReplyId);
1699                                 }
1700                                 configuration.getStringValue("KnownReplies/" + replyCounter + "/ID").setValue(null);
1701                         }
1702
1703                         /* save bookmarked posts. */
1704                         int bookmarkedPostCounter = 0;
1705                         synchronized (bookmarkedPosts) {
1706                                 for (String bookmarkedPostId : bookmarkedPosts) {
1707                                         configuration.getStringValue("Bookmarks/Post/" + bookmarkedPostCounter++ + "/ID").setValue(bookmarkedPostId);
1708                                 }
1709                         }
1710                         configuration.getStringValue("Bookmarks/Post/" + bookmarkedPostCounter++ + "/ID").setValue(null);
1711
1712                         /* now save it. */
1713                         configuration.save();
1714
1715                 } catch (ConfigurationException ce1) {
1716                         logger.log(Level.SEVERE, "Could not store configuration!", ce1);
1717                 } finally {
1718                         synchronized (configuration) {
1719                                 storingConfiguration = false;
1720                         }
1721                 }
1722         }
1723
1724         //
1725         // PRIVATE METHODS
1726         //
1727
1728         /**
1729          * Loads the configuration.
1730          */
1731         @SuppressWarnings("unchecked")
1732         private void loadConfiguration() {
1733                 /* create options. */
1734                 options.addIntegerOption("InsertionDelay", new DefaultOption<Integer>(60, new OptionWatcher<Integer>() {
1735
1736                         @Override
1737                         public void optionChanged(Option<Integer> option, Integer oldValue, Integer newValue) {
1738                                 SoneInserter.setInsertionDelay(newValue);
1739                         }
1740
1741                 }));
1742                 options.addIntegerOption("PositiveTrust", new DefaultOption<Integer>(75));
1743                 options.addIntegerOption("NegativeTrust", new DefaultOption<Integer>(-25));
1744                 options.addStringOption("TrustComment", new DefaultOption<String>("Set from Sone Web Interface"));
1745                 options.addBooleanOption("SoneRescueMode", new DefaultOption<Boolean>(false));
1746                 options.addBooleanOption("ClearOnNextRestart", new DefaultOption<Boolean>(false));
1747                 options.addBooleanOption("ReallyClearOnNextRestart", new DefaultOption<Boolean>(false));
1748
1749                 /* read options from configuration. */
1750                 options.getBooleanOption("ClearOnNextRestart").set(configuration.getBooleanValue("Option/ClearOnNextRestart").getValue(null));
1751                 options.getBooleanOption("ReallyClearOnNextRestart").set(configuration.getBooleanValue("Option/ReallyClearOnNextRestart").getValue(null));
1752                 boolean clearConfiguration = options.getBooleanOption("ClearOnNextRestart").get() && options.getBooleanOption("ReallyClearOnNextRestart").get();
1753                 options.getBooleanOption("ClearOnNextRestart").set(null);
1754                 options.getBooleanOption("ReallyClearOnNextRestart").set(null);
1755                 if (clearConfiguration) {
1756                         /* stop loading the configuration. */
1757                         return;
1758                 }
1759
1760                 options.getIntegerOption("InsertionDelay").set(configuration.getIntValue("Option/InsertionDelay").getValue(null));
1761                 options.getIntegerOption("PositiveTrust").set(configuration.getIntValue("Option/PositiveTrust").getValue(null));
1762                 options.getIntegerOption("NegativeTrust").set(configuration.getIntValue("Option/NegativeTrust").getValue(null));
1763                 options.getStringOption("TrustComment").set(configuration.getStringValue("Option/TrustComment").getValue(null));
1764                 options.getBooleanOption("SoneRescueMode").set(configuration.getBooleanValue("Option/SoneRescueMode").getValue(null));
1765
1766                 /* load known Sones. */
1767                 int soneCounter = 0;
1768                 while (true) {
1769                         String knownSoneId = configuration.getStringValue("KnownSone/" + soneCounter++ + "/ID").getValue(null);
1770                         if (knownSoneId == null) {
1771                                 break;
1772                         }
1773                         synchronized (newSones) {
1774                                 knownSones.add(knownSoneId);
1775                         }
1776                 }
1777
1778                 /* load known posts. */
1779                 int postCounter = 0;
1780                 while (true) {
1781                         String knownPostId = configuration.getStringValue("KnownPosts/" + postCounter++ + "/ID").getValue(null);
1782                         if (knownPostId == null) {
1783                                 break;
1784                         }
1785                         synchronized (newPosts) {
1786                                 knownPosts.add(knownPostId);
1787                         }
1788                 }
1789
1790                 /* load known replies. */
1791                 int replyCounter = 0;
1792                 while (true) {
1793                         String knownReplyId = configuration.getStringValue("KnownReplies/" + replyCounter++ + "/ID").getValue(null);
1794                         if (knownReplyId == null) {
1795                                 break;
1796                         }
1797                         synchronized (newReplies) {
1798                                 knownReplies.add(knownReplyId);
1799                         }
1800                 }
1801
1802                 /* load bookmarked posts. */
1803                 int bookmarkedPostCounter = 0;
1804                 while (true) {
1805                         String bookmarkedPostId = configuration.getStringValue("Bookmarks/Post/" + bookmarkedPostCounter++ + "/ID").getValue(null);
1806                         if (bookmarkedPostId == null) {
1807                                 break;
1808                         }
1809                         synchronized (bookmarkedPosts) {
1810                                 bookmarkedPosts.add(bookmarkedPostId);
1811                         }
1812                 }
1813
1814         }
1815
1816         /**
1817          * Generate a Sone URI from the given URI and latest edition.
1818          *
1819          * @param uriString
1820          *            The URI to derive the Sone URI from
1821          * @return The derived URI
1822          */
1823         private FreenetURI getSoneUri(String uriString) {
1824                 try {
1825                         FreenetURI uri = new FreenetURI(uriString).setDocName("Sone").setMetaString(new String[0]);
1826                         return uri;
1827                 } catch (MalformedURLException mue1) {
1828                         logger.log(Level.WARNING, "Could not create Sone URI from URI: " + uriString, mue1);
1829                         return null;
1830                 }
1831         }
1832
1833         //
1834         // INTERFACE IdentityListener
1835         //
1836
1837         /**
1838          * {@inheritDoc}
1839          */
1840         @Override
1841         public void ownIdentityAdded(OwnIdentity ownIdentity) {
1842                 logger.log(Level.FINEST, "Adding OwnIdentity: " + ownIdentity);
1843                 if (ownIdentity.hasContext("Sone")) {
1844                         trustedIdentities.put(ownIdentity, Collections.synchronizedSet(new HashSet<Identity>()));
1845                         addLocalSone(ownIdentity);
1846                 }
1847         }
1848
1849         /**
1850          * {@inheritDoc}
1851          */
1852         @Override
1853         public void ownIdentityRemoved(OwnIdentity ownIdentity) {
1854                 logger.log(Level.FINEST, "Removing OwnIdentity: " + ownIdentity);
1855                 trustedIdentities.remove(ownIdentity);
1856         }
1857
1858         /**
1859          * {@inheritDoc}
1860          */
1861         @Override
1862         public void identityAdded(OwnIdentity ownIdentity, Identity identity) {
1863                 logger.log(Level.FINEST, "Adding Identity: " + identity);
1864                 trustedIdentities.get(ownIdentity).add(identity);
1865                 addRemoteSone(identity);
1866         }
1867
1868         /**
1869          * {@inheritDoc}
1870          */
1871         @Override
1872         public void identityUpdated(OwnIdentity ownIdentity, final Identity identity) {
1873                 new Thread(new Runnable() {
1874
1875                         @Override
1876                         @SuppressWarnings("synthetic-access")
1877                         public void run() {
1878                                 Sone sone = getRemoteSone(identity.getId());
1879                                 sone.setIdentity(identity);
1880                                 soneDownloader.addSone(sone);
1881                                 soneDownloader.fetchSone(sone);
1882                         }
1883                 }).start();
1884         }
1885
1886         /**
1887          * {@inheritDoc}
1888          */
1889         @Override
1890         public void identityRemoved(OwnIdentity ownIdentity, Identity identity) {
1891                 trustedIdentities.get(ownIdentity).remove(identity);
1892         }
1893
1894         //
1895         // INTERFACE UpdateListener
1896         //
1897
1898         /**
1899          * {@inheritDoc}
1900          */
1901         @Override
1902         public void updateFound(Version version, long releaseTime, long latestEdition) {
1903                 coreListenerManager.fireUpdateFound(version, releaseTime, latestEdition);
1904         }
1905
1906         /**
1907          * Convenience interface for external classes that want to access the core’s
1908          * configuration.
1909          *
1910          * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
1911          */
1912         public static class Preferences {
1913
1914                 /** The wrapped options. */
1915                 private final Options options;
1916
1917                 /**
1918                  * Creates a new preferences object wrapped around the given options.
1919                  *
1920                  * @param options
1921                  *            The options to wrap
1922                  */
1923                 public Preferences(Options options) {
1924                         this.options = options;
1925                 }
1926
1927                 /**
1928                  * Returns the insertion delay.
1929                  *
1930                  * @return The insertion delay
1931                  */
1932                 public int getInsertionDelay() {
1933                         return options.getIntegerOption("InsertionDelay").get();
1934                 }
1935
1936                 /**
1937                  * Sets the insertion delay
1938                  *
1939                  * @param insertionDelay
1940                  *            The new insertion delay, or {@code null} to restore it to
1941                  *            the default value
1942                  * @return This preferences
1943                  */
1944                 public Preferences setInsertionDelay(Integer insertionDelay) {
1945                         options.getIntegerOption("InsertionDelay").set(insertionDelay);
1946                         return this;
1947                 }
1948
1949                 /**
1950                  * Returns the positive trust.
1951                  *
1952                  * @return The positive trust
1953                  */
1954                 public int getPositiveTrust() {
1955                         return options.getIntegerOption("PositiveTrust").get();
1956                 }
1957
1958                 /**
1959                  * Sets the positive trust.
1960                  *
1961                  * @param positiveTrust
1962                  *            The new positive trust, or {@code null} to restore it to
1963                  *            the default vlaue
1964                  * @return This preferences
1965                  */
1966                 public Preferences setPositiveTrust(Integer positiveTrust) {
1967                         options.getIntegerOption("PositiveTrust").set(positiveTrust);
1968                         return this;
1969                 }
1970
1971                 /**
1972                  * Returns the negative trust.
1973                  *
1974                  * @return The negative trust
1975                  */
1976                 public int getNegativeTrust() {
1977                         return options.getIntegerOption("NegativeTrust").get();
1978                 }
1979
1980                 /**
1981                  * Sets the negative trust.
1982                  *
1983                  * @param negativeTrust
1984                  *            The negative trust, or {@code null} to restore it to the
1985                  *            default value
1986                  * @return The preferences
1987                  */
1988                 public Preferences setNegativeTrust(Integer negativeTrust) {
1989                         options.getIntegerOption("NegativeTrust").set(negativeTrust);
1990                         return this;
1991                 }
1992
1993                 /**
1994                  * Returns the trust comment. This is the comment that is set in the web
1995                  * of trust when a trust value is assigned to an identity.
1996                  *
1997                  * @return The trust comment
1998                  */
1999                 public String getTrustComment() {
2000                         return options.getStringOption("TrustComment").get();
2001                 }
2002
2003                 /**
2004                  * Sets the trust comment.
2005                  *
2006                  * @param trustComment
2007                  *            The trust comment, or {@code null} to restore it to the
2008                  *            default value
2009                  * @return This preferences
2010                  */
2011                 public Preferences setTrustComment(String trustComment) {
2012                         options.getStringOption("TrustComment").set(trustComment);
2013                         return this;
2014                 }
2015
2016                 /**
2017                  * Returns whether the rescue mode is active.
2018                  *
2019                  * @return {@code true} if the rescue mode is active, {@code false}
2020                  *         otherwise
2021                  */
2022                 public boolean isSoneRescueMode() {
2023                         return options.getBooleanOption("SoneRescueMode").get();
2024                 }
2025
2026                 /**
2027                  * Sets whether the rescue mode is active.
2028                  *
2029                  * @param soneRescueMode
2030                  *            {@code true} if the rescue mode is active, {@code false}
2031                  *            otherwise
2032                  * @return This preferences
2033                  */
2034                 public Preferences setSoneRescueMode(Boolean soneRescueMode) {
2035                         options.getBooleanOption("SoneRescueMode").set(soneRescueMode);
2036                         return this;
2037                 }
2038
2039                 /**
2040                  * Returns whether Sone should clear its settings on the next restart.
2041                  * In order to be effective, {@link #isReallyClearOnNextRestart()} needs
2042                  * to return {@code true} as well!
2043                  *
2044                  * @return {@code true} if Sone should clear its settings on the next
2045                  *         restart, {@code false} otherwise
2046                  */
2047                 public boolean isClearOnNextRestart() {
2048                         return options.getBooleanOption("ClearOnNextRestart").get();
2049                 }
2050
2051                 /**
2052                  * Sets whether Sone will clear its settings on the next restart.
2053                  *
2054                  * @param clearOnNextRestart
2055                  *            {@code true} if Sone should clear its settings on the next
2056                  *            restart, {@code false} otherwise
2057                  * @return This preferences
2058                  */
2059                 public Preferences setClearOnNextRestart(Boolean clearOnNextRestart) {
2060                         options.getBooleanOption("ClearOnNextRestart").set(clearOnNextRestart);
2061                         return this;
2062                 }
2063
2064                 /**
2065                  * Returns whether Sone should really clear its settings on next
2066                  * restart. This is a confirmation option that needs to be set in
2067                  * addition to {@link #isClearOnNextRestart()} in order to clear Sone’s
2068                  * settings on the next restart.
2069                  *
2070                  * @return {@code true} if Sone should really clear its settings on the
2071                  *         next restart, {@code false} otherwise
2072                  */
2073                 public boolean isReallyClearOnNextRestart() {
2074                         return options.getBooleanOption("ReallyClearOnNextRestart").get();
2075                 }
2076
2077                 /**
2078                  * Sets whether Sone should really clear its settings on the next
2079                  * restart.
2080                  *
2081                  * @param reallyClearOnNextRestart
2082                  *            {@code true} if Sone should really clear its settings on
2083                  *            the next restart, {@code false} otherwise
2084                  * @return This preferences
2085                  */
2086                 public Preferences setReallyClearOnNextRestart(Boolean reallyClearOnNextRestart) {
2087                         options.getBooleanOption("ReallyClearOnNextRestart").set(reallyClearOnNextRestart);
2088                         return this;
2089                 }
2090
2091         }
2092
2093 }